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

On average, it takes 6h 59m 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 day?

The number of flights available between Pennsylvania and London Heathrow Airport is 172 per day as of December 2025. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

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 1,208 per week as of December 2025. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

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

United Airlines, TAP AIR PORTUGAL, and Delta 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 10 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 December 2025.

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.

$167 Cheap Flights from Pennsylvania to London Heathrow Airport in 2025/26

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5:55 pm - 2:05 pm

EWR

LHR

15h 10m1 stop

6:00 am - 1:55 pm

LHR

EWR

12h 55m1 stop

$493Austrian Airlines

Wed, Feb 11 - Mon, Feb 16

9:35 pm - 9:30 am

EWR

LHR

6h 55mnonstop

10:40 am - 2:50 pm

LHR

EWR

8h 10mnonstop

$494British Airways

Wed, Feb 25 - Mon, Mar 9

2:47 pm - 9:20 am

EWR

LHR

13h 33m1 stop

12:05 pm - 8:30 pm

LHR

EWR

13h 25m1 stop

$495United Airlines

Wed, Dec 31 - Mon, Jan 12

1:00 pm - 8:35 pm

EWR

LHR

26h 35m1 stop

6:40 pm - 1:55 pm

LHR

EWR

24h 15m1 stop

$496Multiple Airlines

Tue, Dec 30 - Sun, Jan 11

5:45 pm - 8:05 am

EWR

LHR

9h 20m1 stop

9:50 am - 4:15 pm

LHR

EWR

11h 25m1 stop

$497Aer Lingus

Sat, Jan 24 - Thu, Jan 29

3:30 pm - 7:10 am

EWR

LHR

10h 40m1 stop

12:05 pm - 8:30 pm

LHR

EWR

13h 25m1 stop

$498United Airlines

Wed, Dec 31 - Sat, Jan 17

5:45 pm - 9:05 am

EWR

LHR

10h 20m1 stop

8:50 am - 4:15 pm

LHR

EWR

12h 25m1 stop

$499Aer Lingus

Fri, Jan 9 - Tue, Jan 20

3:20 pm - 7:10 am

LGA

LHR

10h 50m1 stop

1:25 pm - 7:02 pm

LHR

LGA

10h 37m1 stop

$503Air Canada

Sun, Jan 18 - Sun, Jan 25

10:35 am - 7:10 am

LGA

LHR

15h 35m1 stop

1:25 pm - 9:33 pm

LHR

LGA

13h 08m1 stop

$504Air Canada

Mon, Jan 19 - Sun, Jan 25

3:20 pm - 9:20 am

LGA

LHR

13h 00m2 stops

1:25 pm - 9:33 pm

LHR

LGA

13h 08m1 stop

$506Multiple Airlines

Sun, Jan 18 - Sun, Jan 25

British Airways flights from Pennsylvania to London Heathrow Airport

Our best British Airways deals on Pennsylvania to London Heathrow Airport flight tickets

British Airways

Feb 25

EWR9:35 pmNewark

6h 55m

LHR9:30 amLondon Heathrow

Mar 1

LHR10:40 amLondon Heathrow

8h 10m

EWR1:50 pmNewark

$494

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British Airways

Mar 17

EWR7:35 pmNewark

6h 55m

LHR6:30 amLondon Heathrow

Mar 31

LHR9:15 amLondon Heathrow

12h 17m

1 stop

EWR4:32 pmNewark

$500

Find similar

British Airways

Mar 3

EWR6:35 pmNewark

6h 55m

LHR6:30 amLondon Heathrow

Mar 9

LHR10:40 amLondon Heathrow

8h 10m

EWR2:50 pmNewark

$505

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United Airlines flights from Pennsylvania to London Heathrow Airport

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

United Airlines

Dec 31

EWR10:40 pmNewark

7h 25m

LHR11:05 amLondon Heathrow

Jan 12

LHR12:05 pmLondon Heathrow

13h 25m

1 stop

EWR8:30 pmNewark

$495

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United Airlines

Dec 6

EWR9:10 amNewark

7h 10m

LHR9:20 pmLondon Heathrow

Dec 9

LHR9:00 amLondon Heathrow

16h 30m

1 stop

EWR8:30 pmNewark

$496

Find similar

United Airlines

Dec 31

EWR3:30 pmNewark

10h 40m

1 stop

LHR7:10 amLondon Heathrow

Jan 17

LHR12:05 pmLondon Heathrow

13h 25m

1 stop

EWR8:30 pmNewark

$498

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NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 2/11

5:55 pm-2:05 pm

1 stop15h 10m

London Heathrow

Mon 2/16

6:00 am-1:55 pm

1 stop12h 55m

$493

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 2/25

9:35 pm-9:30 am

Nonstop6h 55m

London Heathrow

Mon 3/9

10:40 am-2:50 pm

Nonstop8h 10m

$494

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 12/31

2:47 pm-9:20 am

1 stop13h 33m

London Heathrow

Mon 1/12

12:05 pm-8:30 pm

1 stop13h 25m

$495

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 12/30

1:00 pm-8:35 pm

1 stop26h 35m

London Heathrow

Sun 1/11

6:40 pm-1:55 pm

1 stop24h 15m

$496

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 1/24

5:45 pm-8:05 am

1 stop9h 20m

London Heathrow

Thu 1/29

9:50 am-4:15 pm

1 stop11h 25m

$497

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 12/31

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

Sat 1/17

12:05 pm-8:30 pm

1 stop13h 25m

$498

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 1/9

5:45 pm-9:05 am

1 stop10h 20m

London Heathrow

Tue 1/20

8:50 am-4:15 pm

1 stop12h 25m

$499

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 1/18

3:20 pm-7:10 am

1 stop10h 50m

London Heathrow

Sun 1/25

1:25 pm-7:02 pm

1 stop10h 37m

$503

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 1/19

10:35 am-7:10 am

1 stop15h 35m

London Heathrow

Sun 1/25

1:25 pm-9:33 pm

1 stop13h 08m

$504

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 1/18

3:20 pm-9:20 am

2 stops13h 00m

London Heathrow

Sun 1/25

1:25 pm-9:33 pm

1 stop13h 08m

$506

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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

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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 $657. 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 $664.

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 $776. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $973.

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 at noon. momondo users have found flights departing from Pennsylvania to London Heathrow Airport at noon for as low as $802. 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 afternoon are often more expensive with an average ticket price of $870.

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 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 $814 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 $696 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 30% 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	$434
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 $434. The best round-trip flight deal from Pennsylvania to London Heathrow Airport found on momondo in the last 72 hours is $708.

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 December 2025.
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 Airbus A350-1000, representing 39.22% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 37.07%, Boeing 787-8 Dreamliner at 17.04%, and Boeing 787 Dreamliner at 1.92%.

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 8,011 reviews	Search Delta flights
JetBlue	PriceFrom $295	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Icelandair	PriceFrom $492	Free Cancellation	Rating 7.0 584 reviews	Search Icelandair flights
American Airlines	PriceFrom $505	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
British Airways	PriceFrom $508	Free Cancellation	Rating 6.7 7,562 reviews	Search British Airways flights
Finnair	PriceFrom $514	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
Aer Lingus	PriceFrom $522	Free Cancellation	Rating 7.2 1,384 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $560	Free Cancellation	Rating 7.4 9,066 reviews	Search United Airlines flights
Iberia	PriceFrom $579	Free Cancellation	Rating 7.0 3,040 reviews	Search Iberia flights
Air Canada	PriceFrom $647	Free Cancellation	Rating 7.1 10,500 reviews	Search Air Canada flights

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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.

An easier way to manage your London Heathrow Airport trip

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Cheap flights from Pennsylvania to London from $167

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 12/10. 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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Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

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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

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?

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 $776. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $973.

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?

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

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?

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 30% on your flight if you consider stops on a Pennsylvania to London Heathrow Airport flight.

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

United Airlines, TAP AIR PORTUGAL, and Delta are the most popular carriers operating 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?

The number of flights available between Pennsylvania and London Heathrow Airport is 172 per day as of December 2025. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

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 1,208 per week as of December 2025. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

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

When did momondo last update prices for flights from Pennsylvania to London Heathrow Airport?

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

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

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

What is the most popular plane model 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?

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

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

How can momondo help me find flights 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?

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