How many flights depart from Pennsylvania to London Heathrow Airport on average per day?

The number of flights available between Pennsylvania and London Heathrow Airport is 178 per day as of September 2026. The most frequent departure time is 9:00PM, with 100% of daily flights leaving in the evening.

What airlines fly to London Heathrow Airport?

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Pennsylvania according to our data. British Airways is the first choice among our users, with 55% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 11 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London Heathrow Airport?

On average, it takes 7h to fly from Pennsylvania to London Heathrow Airport if you fly out of Philadelphia (the most popular airport in Pennsylvania) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Pittsburgh and into London Heathrow Airport, then the flight time is around 7h 15m.

What is the cheapest airline that flies from Pennsylvania to London Heathrow?

United Airlines, JetBlue, and Virgin Atlantic are the most popular carriers operating from Pennsylvania to London Heathrow

How many flights depart from Pennsylvania to London Heathrow Airport on average per week?

The number of flights available between Pennsylvania and London Heathrow Airport is 1,252 per week as of September 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

How many operators does momondo search for flights from Pennsylvania to London Heathrow Airport?

The number of operators available for flights from Pennsylvania to London Heathrow Airport is 20 as of September 2026.

How old do you have to be to fly from Pennsylvania to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pennsylvania to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$231 Cheap Flights from Pennsylvania to London Heathrow Airport in 2026/27

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Find the cheapest flights from Pennsylvania to London

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:35 pm - 9:20 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 45m1 stop Kastrup Copenhagen

5:00 pm - 3:45 pmLHR London Heathrow-JFK New York John F Kennedy Intl

27h 45m1 stop Kastrup Copenhagen

$604Scandinavian Airlines

Tue, Nov 3 - Fri, Nov 13

5:35 pm - 4:00 pmJFK New York John F Kennedy Intl-LHR London Heathrow

17h 25m1 stop Kastrup Copenhagen

6:40 am - 3:45 pmLHR London Heathrow-JFK New York John F Kennedy Intl

14h 05m1 stop Kastrup Copenhagen

$604Scandinavian Airlines

Sat, Nov 7 - Thu, Nov 12

11:55 pm - 4:00 pmJFK New York John F Kennedy Intl-LHR London Heathrow

11h 05m1 stop Dublin

7:50 am - 1:59 pmLHR London Heathrow-JFK New York John F Kennedy Intl

11h 09m1 stop Dublin

$606Aer Lingus

Mon, Oct 19 - Fri, Jan 15

4:55 pm - 9:05 amJFK New York John F Kennedy Intl-LHR London Heathrow

11h 10m1 stop Dublin

4:50 pm - 10:25 pmLHR London Heathrow-JFK New York John F Kennedy Intl

10h 35m1 stop Dublin

$606Aer Lingus

Wed, Oct 7 - Fri, Oct 9

10:05 pm - 8:05 pmJFK New York John F Kennedy Intl-LHR London Heathrow

17h 00m2 stops Madrid Barajas Barcelona-El Prat

8:50 pm - 5:50 pmLHR London Heathrow-JFK New York John F Kennedy Intl

26h 00m2 stops Barcelona-El Prat Madrid Barajas

$606Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

6:40 pm - 6:40 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 00mnonstop

5:00 pm - 8:10 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 10mnonstop

$608British Airways

Wed, Jan 27 - Wed, Feb 3

8:05 pm - 8:10 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mnonstop

6:05 pm - 9:10 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 05mnonstop

$608British Airways

Wed, Feb 3 - Wed, Feb 10

7:25 pm - 10:50 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 25m1 stop Reykjavik Keflavik Intl

12:15 pm - 6:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

10h 45m1 stop Reykjavik Keflavik Intl

$609Icelandair

Sun, Nov 15 - Thu, Jan 7

7:25 pm - 10:50 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 25m1 stop Reykjavik Keflavik Intl

12:15 pm - 6:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

10h 45m1 stop Reykjavik Keflavik Intl

$610Icelandair

Wed, Jan 6 - Sun, Jan 10

11:45 pm - 8:05 pmJFK New York John F Kennedy Intl-LHR London Heathrow

15h 20m1 stop Barcelona-El Prat

9:55 am - 10:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

17h 05m1 stop Barcelona-El Prat

$610LEVEL

Thu, Nov 12 - Thu, Nov 26

Cheap last minute flights

Enter your travel dates to find the best prices.

11:55 pm - 3:00 pmJFK New York John F Kennedy Intl-LHR London Heathrow

10h 05m1 stop Dublin

4:50 pm - 10:25 pmLHR London Heathrow-JFK New York John F Kennedy Intl

10h 35m1 stop Dublin

$607Aer Lingus

Sun, Sep 27 - Tue, Oct 6

11:55 pm - 4:00 pmJFK New York John F Kennedy Intl-LHR London Heathrow

11h 05m1 stop Dublin

4:50 pm - 10:25 pmLHR London Heathrow-JFK New York John F Kennedy Intl

10h 35m1 stop Dublin

$609Aer Lingus

Sun, Sep 27 - Tue, Oct 6

4:15 pm - 7:55 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 40m1 stop Zurich

6:00 am - 12:50 pmLHR London Heathrow-JFK New York John F Kennedy Intl

11h 50m1 stop Zurich

$621SWISS

Sun, Sep 27 - Fri, Oct 9

4:15 pm - 7:55 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 40m1 stop Zurich

8:45 am - 4:35 pmLHR London Heathrow-JFK New York John F Kennedy Intl

12h 50m1 stop Zurich

$621SWISS

Sun, Sep 27 - Tue, Oct 13

11:55 pm - 12:05 pmJFK New York John F Kennedy Intl-LHR London Heathrow

7h 10mnonstop

3:25 pm - 10:40 pmLHR London Heathrow-JFK New York John F Kennedy Intl

12h 15m1 stop Paris Charles de Gaulle

$629Virgin Atlantic

Sun, Sep 27 - Tue, Oct 6

6:20 pm - 6:25 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mnonstop

2:10 pm - 5:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

7h 50mnonstop

$631Finnair

Sun, Sep 27 - Tue, Oct 6

4:15 pm - 7:55 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 40m1 stop Zurich

6:50 am - 1:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

11h 10m1 stop Brussels Bruxelles-National

$631Multiple Airlines

Sun, Sep 27 - Tue, Oct 6

4:15 pm - 7:55 amJFK New York John F Kennedy Intl-LHR London Heathrow

10h 40m1 stop Zurich

6:50 am - 1:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

11h 10m1 stop Brussels Bruxelles-National

$631Multiple Airlines

Mon, Sep 28 - Tue, Oct 6

6:30 pm - 6:45 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 15mnonstop

3:20 pm - 10:40 pmLHR London Heathrow-JFK New York John F Kennedy Intl

12h 20m1 stop Paris Charles de Gaulle

$632Virgin Atlantic

Sat, Sep 26 - Fri, Oct 9

9:35 am - 9:40 pmJFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mnonstop

2:10 pm - 5:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

7h 50mnonstop

$650Finnair

Mon, Sep 28 - Tue, Oct 6

Cheap direct flights

Enter your travel dates to find the best prices.

6:40 pm - 6:40 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 00mnonstop

5:00 pm - 8:10 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 10mnonstop

$608British Airways

Wed, Jan 27 - Wed, Feb 3

8:05 pm - 8:10 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mnonstop

6:05 pm - 9:10 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 05mnonstop

$608British Airways

Wed, Feb 3 - Wed, Feb 10

9:35 am - 9:40 pmJFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mnonstop

6:05 pm - 9:05 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 00mnonstop

$617Finnair

Sun, Oct 11 - Tue, Oct 20

8:15 am - 8:10 pmJFK New York John F Kennedy Intl-LHR London Heathrow

6h 55mnonstop

10:10 am - 2:27 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 17mnonstop

$630Virgin Atlantic

Mon, Oct 19 - Sat, Oct 31

8:15 pm - 8:50 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 35mnonstop

3:50 pm - 8:10 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 20mnonstop

$630Virgin Atlantic

Thu, Oct 15 - Thu, Oct 29

9:35 am - 9:40 pmJFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mnonstop

5:00 pm - 9:00 pmLHR London Heathrow-JFK New York John F Kennedy Intl

8h 00mnonstop

$645Finnair

Wed, Oct 21 - Wed, Oct 28

7:00 pm - 7:15 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 15mnonstop

8:05 pm - 10:50 pmLHR London Heathrow-JFK New York John F Kennedy Intl

7h 45mnonstop

$646KLM

Sun, Oct 11 - Tue, Oct 20

7:00 pm - 7:15 amJFK New York John F Kennedy Intl-LHR London Heathrow

7h 15mnonstop

8:05 pm - 10:50 pmLHR London Heathrow-JFK New York John F Kennedy Intl

7h 45mnonstop

$649KLM

Sun, Oct 11 - Tue, Oct 20

9:45 am - 8:55 pmJFK New York John F Kennedy Intl-LHR London Heathrow

7h 10mnonstop

7:25 am - 10:37 amLHR London Heathrow-JFK New York John F Kennedy Intl

8h 12mnonstop

$649JetBlue

Sun, Oct 25 - Tue, Nov 3

9:26 am - 9:40 pmJFK New York John F Kennedy Intl-LHR London Heathrow

7h 14mnonstop

7:25 am - 10:37 amLHR London Heathrow-JFK New York John F Kennedy Intl

8h 12mnonstop

$649JetBlue

Wed, Nov 11 - Wed, Nov 25

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Icelandair flights from Pennsylvania to London Heathrow Airport

Our best Icelandair deals on Pennsylvania to London Heathrow Airport flight tickets

Icelandair

Oct 11

JFK11:10 pmNew York John F Kennedy Intl

31h 45m

1 stop

LHR11:55 amLondon Heathrow

Oct 20

LHR1:05 pmLondon Heathrow

14h 00m

1 stop

JFK10:05 pmNew York John F Kennedy Intl

$614

Icelandair

Jan 8

JFK7:25 pmNew York John F Kennedy Intl

10h 25m

1 stop

LHR10:50 amLondon Heathrow

Feb 6

LHR12:15 pmLondon Heathrow

10h 45m

1 stop

JFK6:00 pmNew York John F Kennedy Intl

$628

SWISS flights from Pennsylvania to London Heathrow Airport

Our best SWISS deals on Pennsylvania to London Heathrow Airport flight tickets

SWISS

Dec 1

JFK4:25 pmNew York John F Kennedy Intl

10h 40m

1 stop

LHR8:05 amLondon Heathrow

Dec 9

LHR6:00 amLondon Heathrow

12h 15m

1 stop

JFK1:15 pmNew York John F Kennedy Intl

$619

SWISS

Oct 4

JFK4:15 pmNew York John F Kennedy Intl

10h 40m

1 stop

LHR7:55 amLondon Heathrow

Nov 10

LHR6:00 amLondon Heathrow

12h 15m

1 stop

JFK1:15 pmNew York John F Kennedy Intl

$620

SWISS

Oct 21

JFK4:15 pmNew York John F Kennedy Intl

10h 40m

1 stop

LHR7:55 amLondon Heathrow

Oct 28

LHR6:00 amLondon Heathrow

12h 15m

1 stop

JFK2:15 pmNew York John F Kennedy Intl

$621

momondo Fare Finder

Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Tue 11/3

5:35 pm-9:20 am

1 stop10h 45m

London Heathrow

Fri 11/13

5:00 pm-3:45 pm

1 stop27h 45m

$604

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sat 11/7

5:35 pm-4:00 pm

1 stop17h 25m

London Heathrow

Thu 11/12

6:40 am-3:45 pm

1 stop14h 05m

$604

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Mon 10/19

11:55 pm-4:00 pm

1 stop11h 05m

London Heathrow

Fri 1/15

7:50 am-1:59 pm

1 stop11h 09m

$606

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 10/7

4:55 pm-9:05 am

1 stop11h 10m

London Heathrow

Fri 10/9

4:50 pm-10:25 pm

1 stop10h 35m

$606

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Tue 11/10

10:05 pm-8:05 pm

2 stops17h 00m

London Heathrow

Tue 11/17

8:50 pm-5:50 pm

2 stops26h 00m

$606

Quickest round-trip

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 1/27

6:40 pm-6:40 am

Nonstop7h 00m

London Heathrow

Wed 2/3

5:00 pm-8:10 pm

Nonstop8h 10m

$608

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 2/3

8:05 pm-8:10 am

Nonstop7h 05m

London Heathrow

Wed 2/10

6:05 pm-9:10 pm

Nonstop8h 05m

$608

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sun 11/15

7:25 pm-10:50 am

1 stop10h 25m

London Heathrow

Thu 1/7

12:15 pm-6:00 pm

1 stop10h 45m

$609

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 1/6

7:25 pm-10:50 am

1 stop10h 25m

London Heathrow

Sun 1/10

12:15 pm-6:00 pm

1 stop10h 45m

$610

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Thu 11/12

11:45 pm-8:05 pm

1 stop15h 20m

London Heathrow

Thu 11/26

9:55 am-10:00 pm

1 stop17h 05m

$610

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Pennsylvania to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Pennsylvania, with most prices found around $708. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Pennsylvania to London Heathrow Airport during January average around $744.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $935. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,160.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Pennsylvania to London Heathrow Airport in the afternoon for as low as $977. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,115.

What is the cheapest Pennsylvania to London Heathrow flight route?

Fly from Philadelphia to London Heathrow for the best Pennsylvania - London Heathrow flight prices

How far in advance should I book a flight from Pennsylvania to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,030 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Pennsylvania for as low as $944 on momondo.

What cabin class options are available on Pennsylvania to London Heathrow Airport flights?

There are 4 cabin classes available to choose from on Pennsylvania to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pennsylvania to London Heathrow Airport flights?

No. A direct flight is the cheapest option for a flight between Pennsylvania to London Heathrow Airport.

Cheap Pennsylvania to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to London Heathrow Airport

Best Price Found	$231
Fastest flight time	6h 50m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Pennsylvania in the past 72 hours is $231. The best round-trip flight deal from Pennsylvania to London Heathrow Airport found on momondo in the last 72 hours is $604.

The fastest flight from Pennsylvania to London Heathrow Airport takes 6h 50m

Direct flights go from Pennsylvania to London Heathrow Airport every day.

Search flight deals

Frequently asked questions about flying from Pennsylvania to London Heathrow Airport

When did momondo last update prices for flights from Pennsylvania to London Heathrow Airport?
Prices for flights from Pennsylvania to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Pennsylvania to London Heathrow Airport?
The number of operators available for flights from Pennsylvania to London Heathrow Airport is 20 as of September 2026.
How old do you have to be to fly from Pennsylvania to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pennsylvania to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Pennsylvania to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Pennsylvania to London Heathrow Airport is Boeing 787-9 Dreamliner, representing 35.05% of all bookings. The subsequent popular models are Airbus A350-1000 at 31.76%, Boeing 787-8 Dreamliner at 18.73%, and Boeing 777 at 4.35%.

Best airlines flying from Pennsylvania to London Heathrow Airport

Compare and see reviews for airlines that fly from Pennsylvania to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Finnair	PriceFrom $563	Free Cancellation	Rating 7.6 1,431 reviews	Search Finnair flights
United Airlines	PriceFrom $583	Free Cancellation	Rating 7.4 10,229 reviews	Search United Airlines flights
Iberia	PriceFrom $588	Free Cancellation	Rating 7.0 3,249 reviews	Search Iberia flights
American Airlines	PriceFrom $602	Free Cancellation	Rating 7.0 12,079 reviews	Search American Airlines flights
Aer Lingus	PriceFrom $609	Free Cancellation	Rating 7.3 1,783 reviews	Search Aer Lingus flights
British Airways	PriceFrom $626	Free Cancellation	Rating 6.7 8,228 reviews	Search British Airways flights
JetBlue	PriceFrom $640	Free Cancellation	Rating 7.1 3,036 reviews	Search JetBlue flights
Air Canada	PriceFrom $647	Free Cancellation	Rating 7.1 11,667 reviews	Search Air Canada flights
Delta	PriceFrom $659	Free Cancellation	Rating 7.8 8,595 reviews	Search Delta flights
Lufthansa	PriceFrom $687	Free Cancellation	Rating 6.8 8,235 reviews	Search Lufthansa flights

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Stratford-upon-Avon

Hayes

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Wembley

Kingston upon Thames

Richmond

Stansted

Watford

Harrow

Cobham

Worthing

Eastbourne

Slough

Hook

Uxbridge

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to London?

Finding the right flight to London from Pennsylvania is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Pennsylvania to London with flexible booking policies on momondo?

All flight searches from Pennsylvania to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Pennsylvania to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pennsylvania to London.

I’m not ready to book a flight from Pennsylvania to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Pennsylvania to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Flights to London Gatwick Airportfrom $200

Flights to London Stansted Airportfrom $389

Flights to London City Airportfrom $591

Flights to London Luton Airportfrom $455

Flights to Glasgow Intl Airportfrom $486

Flights to Belfast Intl Airportfrom $624

Flights to London Southend Airportfrom $546

Flights to Belfast City Airportfrom $624

Cheap flights from Pennsylvania to London from $231

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to London departing on 12/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Icelandair flights from Pennsylvania to London Heathrow Airport

Our best Icelandair deals on Pennsylvania to London Heathrow Airport flight tickets

SWISS flights from Pennsylvania to London Heathrow Airport

Our best SWISS deals on Pennsylvania to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Pennsylvania to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Pennsylvania to London Heathrow flight route?

How far in advance should I book a flight from Pennsylvania to London Heathrow Airport?

What cabin class options are available on Pennsylvania to London Heathrow Airport flights?

Can stopping save me money on Pennsylvania to London Heathrow Airport flights?

What is the cheapest airline that flies from Pennsylvania to London Heathrow?

What airlines fly to London Heathrow Airport?

How many flights depart from Pennsylvania to London Heathrow Airport on average per day?

How many flights depart from Pennsylvania to London Heathrow Airport on average per week?

How long does it take to fly to London Heathrow Airport?

Cheap Pennsylvania to London Heathrow Airport flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Pennsylvania to London Heathrow Airport

Best airlines flying from Pennsylvania to London Heathrow Airport

Compare and see reviews for airlines that fly from Pennsylvania to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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