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 20m.

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 1,186 per week as of March 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.

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 169 per day as of March 2026. The most frequent departure time is 7:00PM, with 100% of daily flights leaving in the evening.

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

TAP AIR PORTUGAL, United Airlines, and British Airways are the most popular carriers operating from Pennsylvania to London Heathrow

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 56% 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 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 21 as of March 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.

$226 Cheap Flights from Pennsylvania to London Heathrow Airport in 2026

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Find the cheapest flights from Pennsylvania to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:05 pm - 10:00 pm

JFK

LHR

18h 55m

1 stop

11:20 am - 8:05 pm

LHR

JFK

13h 45m

1 stop

$488TAP AIR PORTUGAL

Mon, May 4 - Mon, May 18

10:05 pm - 10:00 pm

JFK

LHR

18h 55m

1 stop

6:00 am - 8:05 pm

LHR

JFK

19h 05m

1 stop

$489TAP AIR PORTUGAL

Mon, May 4 - Wed, May 20

5:20 pm - 8:55 am

EWR

LHR

34h 35m

1 stop

7:05 am - 1:15 pm

LHR

EWR

11h 10m

1 stop

$506Scandinavian Airlines

Mon, Apr 13 - Thu, Apr 16

5:20 pm - 8:55 am

EWR

LHR

34h 35m

1 stop

7:05 am - 1:15 pm

LHR

EWR

11h 10m

1 stop

$507Scandinavian Airlines

Sun, Apr 19 - Wed, Apr 22

11:35 am - 6:35 am

LGA

LHR

14h 00m

1 stop

9:30 am - 4:58 pm

LHR

LGA

12h 28m

1 stop

$518Air Canada

Sat, May 2 - Sun, May 10

4:45 pm - 11:50 am

LGA

LHR

14h 05m

1 stop

9:30 am - 4:58 pm

LHR

LGA

12h 28m

1 stop

$541Air Canada

Sun, May 3 - Sun, May 10

8:25 pm - 11:55 am

PIT

LHR

10h 30m

1 stop

9:25 pm - 7:15 pm

LHR

PIT

26h 50m

1 stop

$781Icelandair

Sun, Sep 13 - Thu, Sep 24

8:25 pm - 11:55 am

PIT

LHR

10h 30m

1 stop

1:05 pm - 7:15 pm

LHR

PIT

11h 10m

1 stop

$783Icelandair

Fri, Sep 4 - Fri, Sep 11

7:59 pm - 3:40 pm

MDT

LHR

14h 41m

2 stops

10:50 am - 11:25 pm

LHR

MDT

17h 35m

2 stops

$797Lufthansa

Tue, Aug 18 - Wed, Sep 2

7:59 pm - 3:40 pm

MDT

LHR

14h 41m

2 stops

10:50 am - 11:25 pm

LHR

MDT

17h 35m

2 stops

$798Lufthansa

Tue, Aug 18 - Wed, Sep 2

American Airlines flights from Pennsylvania to London Heathrow Airport

Our best American Airlines deals on Pennsylvania to London Heathrow Airport flight tickets

American Airlines

Mar 25

LGA5:58 pmNew York LaGuardia

9h 02m

1 stop

LHR7:00 amLondon Heathrow

Mar 31

LHR2:25 pmLondon Heathrow

11h 47m

1 stop

LGA9:12 pmNew York LaGuardia

$676

American Airlines

Mar 31

LGA4:05 pmNew York LaGuardia

10h 05m

1 stop

LHR7:10 amLondon Heathrow

Apr 7

LHR11:00 amLondon Heathrow

12h 49m

1 stop

LGA6:49 pmNew York LaGuardia

$691

American Airlines

Apr 1

LGA4:05 pmNew York LaGuardia

10h 55m

1 stop

LHR8:00 amLondon Heathrow

Apr 30

LHR2:30 pmLondon Heathrow

11h 19m

1 stop

LGA8:49 pmNew York LaGuardia

$694

Icelandair flights from Pennsylvania to London Heathrow Airport

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

Icelandair

May 1

JFK11:10 pmNew York John F Kennedy Intl

31h 45m

1 stop

LHR11:55 amLondon Heathrow

May 8

LHR9:25 pmLondon Heathrow

26h 55m

1 stop

JFK7:20 pmNew York John F Kennedy Intl

$560

Icelandair

May 2

JFK11:10 pmNew York John F Kennedy Intl

16h 10m

1 stop

LHR8:20 pmLondon Heathrow

May 19

LHR9:25 pmLondon Heathrow

26h 55m

1 stop

JFK7:20 pmNew York John F Kennedy Intl

$561

Icelandair

May 2

JFK11:10 pmNew York John F Kennedy Intl

16h 10m

1 stop

LHR8:20 pmLondon Heathrow

May 8

LHR9:25 pmLondon Heathrow

26h 55m

1 stop

JFK7:20 pmNew York John F Kennedy Intl

$562

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 - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:00 pm

1 stop18h 55m

London Heathrow

Mon 5/18

11:20 am-8:05 pm

1 stop13h 45m

$488

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:00 pm

1 stop18h 55m

London Heathrow

Wed 5/20

6:00 am-8:05 pm

1 stop19h 05m

$489

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 4/13

5:20 pm-8:55 am

1 stop34h 35m

London Heathrow

Thu 4/16

7:05 am-1:15 pm

1 stop11h 10m

$506

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 4/19

5:20 pm-8:55 am

1 stop34h 35m

London Heathrow

Wed 4/22

7:05 am-1:15 pm

1 stop11h 10m

$507

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 5/2

11:35 am-6:35 am

1 stop14h 00m

London Heathrow

Sun 5/10

9:30 am-4:58 pm

1 stop12h 28m

$518

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 5/3

4:45 pm-11:50 am

1 stop14h 05m

London Heathrow

Sun 5/10

9:30 am-4:58 pm

1 stop12h 28m

$541

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 9/13

8:25 pm-11:55 am

1 stop10h 30m

London Heathrow

Thu 9/24

9:25 pm-7:15 pm

1 stop26h 50m

$781

Quickest round-trip

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Fri 9/4

8:25 pm-11:55 am

1 stop10h 30m

London Heathrow

Fri 9/11

1:05 pm-7:15 pm

1 stop11h 10m

$783

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Tue 8/18

7:59 pm-3:40 pm

2 stops14h 41m

London Heathrow

Wed 9/2

10:50 am-11:25 pm

2 stops17h 35m

$797

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Tue 8/18

7:59 pm-3:40 pm

2 stops14h 41m

London Heathrow

Wed 9/2

10:50 am-11:25 pm

2 stops17h 35m

$798

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 September is, on average, the cheapest month to fly to London Heathrow Airport from Pennsylvania, with most prices found around $656. If you’re not able to fly to London Heathrow Airport in September, then October is your next best option. Flight prices from Pennsylvania to London Heathrow Airport during October average around $669.

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 $775. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,004.

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 $831. 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 $888.

What is the cheapest Pennsylvania to London Heathrow flight route?

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

How far in advance should I book a flight 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 $828 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 $691 on momondo.

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

There are 4 cabin classes available to choose from on Pennsylvania to London Heathrow 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?

You could potentially save up to 1% on your flight if you consider stops on a Pennsylvania to London Heathrow Airport flight.

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	$486
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 $486. The best round-trip flight deal from Pennsylvania to London Heathrow Airport found on momondo in the last 72 hours is $802.

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

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 21 as of March 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 41.54% of all bookings. The subsequent popular models are Airbus A350-1000 at 38.96%, Boeing 787-8 Dreamliner at 12.09%, and Boeing 787 Dreamliner at 2.90%.

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
Delta	PriceFrom $219	Free Cancellation	Rating 7.9 8,315 reviews	Search Delta flights
JetBlue	PriceFrom $295	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Icelandair	PriceFrom $492	Free Cancellation	Rating 7.0 625 reviews	Search Icelandair flights
British Airways	PriceFrom $503	Free Cancellation	Rating 6.7 7,806 reviews	Search British Airways flights
Finnair	PriceFrom $514	Free Cancellation	Rating 7.7 1,374 reviews	Search Finnair flights
American Airlines	PriceFrom $515	Free Cancellation	Rating 7.1 11,490 reviews	Search American Airlines flights
Aer Lingus	PriceFrom $522	Free Cancellation	Rating 7.2 1,481 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $560	Free Cancellation	Rating 7.4 9,453 reviews	Search United Airlines flights
Iberia	PriceFrom $587	Free Cancellation	Rating 7.0 3,146 reviews	Search Iberia flights
Air Canada	PriceFrom $647	Free Cancellation	Rating 7.1 10,828 reviews	Search Air Canada flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Crawley

Stratford-upon-Avon

Wembley

Hayes

Dartford

Croydon

Harrow

Watford

Brentwood

Guildford

Stansted

Cobham

Folkestone

Romford

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 $422

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Flights to London Southend Airportfrom $723

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Cheap flights from Pennsylvania to London from $226

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 8/2. 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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American Airlines flights from Pennsylvania to London Heathrow Airport

Our best American Airlines deals on Pennsylvania to London Heathrow Airport flight tickets

Icelandair flights from Pennsylvania to London Heathrow Airport

Our best Icelandair 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 to London Heathrow Airport?

What cabin class options are available on Pennsylvania to London Heathrow 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

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

Best Price Found

Fastest flight time

Direct flights

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

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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.

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

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