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

If you’re flying from a popular airport in Pennsylvania, such as Philadelphia or Pittsburgh, and flying into London Heathrow Airport, then you can expect flight times to average 6h 59m and 7h 20m, respectively.

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

180 flights are operational daily from Pennsylvania to London Heathrow Airport as of December 2025. The most popular departure time for this route is 18:00, with 100% of flights per day taking off in the evening.

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

As of December 2025, there are 1,262 flights per week flying from Pennsylvania to London Heathrow Airport. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

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

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

Which airlines fly to London Heathrow Airport?

British Airways, American Airlines and Aer Lingus 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 74% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 5 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?

As of December 2025, there are 12 operators available to choose from for flights from Pennsylvania to London Heathrow Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

£125 Cheap Flights from Pennsylvania to London Heathrow Airport in 2025/26

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00:15 - 21:35

EWR

LHR

16h 20m2 stops

13:40 - 22:10

LHR

EWR

13h 30m1 stop

£369TAP AIR PORTUGAL

Thu, 8 Jan - Fri, 23 Jan

17:20 - 12:00

EWR

LHR

13h 40m1 stop

16:30 - 19:35

LHR

EWR

8h 05mdirect

£370American Airlines

Wed, 11 Feb - Tue, 17 Feb

18:00 - 06:20

EWR

LHR

7h 20mdirect

12:05 - 20:30

LHR

EWR

13h 25m1 stop

£371United Airlines

Wed, 31 Dec - Wed, 21 Jan

13:00 - 20:35

EWR

LHR

26h 35m1 stop

20:05 - 13:55

LHR

EWR

22h 50m1 stop

£372Multiple Airlines

Tue, 30 Dec - Sun, 11 Jan

17:45 - 10:10

EWR

LHR

11h 25m1 stop

07:50 - 16:15

LHR

EWR

13h 25m1 stop

£372Aer Lingus

Sat, 24 Jan - Wed, 28 Jan

15:30 - 07:10

EWR

LHR

10h 40m1 stop

12:05 - 20:30

LHR

EWR

13h 25m1 stop

£373United Airlines

Wed, 31 Dec - Sat, 17 Jan

17:45 - 08:05

EWR

LHR

9h 20m1 stop

09:50 - 16:15

LHR

EWR

11h 25m1 stop

£374Aer Lingus

Fri, 9 Jan - Sat, 17 Jan

14:20 - 11:25

EWR

LHR

16h 05m2 stops

09:50 - 20:30

LHR

EWR

15h 40m2 stops

£375Multiple Airlines

Tue, 13 Jan - Tue, 20 Jan

15:20 - 07:10

LGA

LHR

10h 50m1 stop

13:25 - 19:02

LHR

LGA

10h 37m1 stop

£377Air Canada

Sun, 18 Jan - Sun, 25 Jan

15:20 - 07:10

LGA

LHR

10h 50m1 stop

13:25 - 19:02

LHR

LGA

10h 37m1 stop

£378Air Canada

Mon, 19 Jan - Sun, 25 Jan

American Airlines flights from Pennsylvania to London Heathrow Airport

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

American Airlines

11 Feb

EWR17:20Newark

13h 40m

1 stop

LHR12:00London Heathrow

17 Feb

LHR16:30London Heathrow

8h 05m

EWR19:35Newark

£370

Find similar

American Airlines

3 Apr

JFK18:16New York John F Kennedy Intl

8h 34m

1 stop

LHR07:50London Heathrow

8 Apr

LHR08:20London Heathrow

7h 45m

JFK11:05New York John F Kennedy Intl

£393

Find similar

American Airlines

5 Dec

LGA16:00New York LaGuardia

10h 00m

1 stop

LHR07:00London Heathrow

12 Dec

LHR13:30London Heathrow

11h 56m

1 stop

LGA20:26New York LaGuardia

£396

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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

31 Dec

EWR18:00Newark

7h 20m

LHR06:20London Heathrow

21 Jan

LHR12:05London Heathrow

13h 25m

1 stop

EWR20:30Newark

£371

Find similar

United Airlines

31 Dec

EWR15:30Newark

10h 40m

1 stop

LHR07:10London Heathrow

17 Jan

LHR12:05London Heathrow

13h 25m

1 stop

EWR20:30Newark

£373

Find similar

United Airlines

31 Dec

EWR08:25Newark

7h 10m

LHR20:35London Heathrow

24 Jan

LHR06:35London Heathrow

17h 30m

1 stop

EWR19:05Newark

£375

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momondo Fare Finder

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Depart

Return

Price

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 8/1

00:15-21:35

2 stops16h 20m

London Heathrow

Fri 23/1

13:40-22:10

1 stop13h 30m

£369

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 11/2

17:20-12:00

1 stop13h 40m

London Heathrow

Tue 17/2

16:30-19:35

Nonstop8h 05m

£370

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 31/12

18:00-06:20

Nonstop7h 20m

London Heathrow

Wed 21/1

12:05-20:30

1 stop13h 25m

£371

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 30/12

13:00-20:35

1 stop26h 35m

London Heathrow

Sun 11/1

20:05-13:55

1 stop22h 50m

£372

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 24/1

17:45-10:10

1 stop11h 25m

London Heathrow

Wed 28/1

07:50-16:15

1 stop13h 25m

£372

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 31/12

15:30-07:10

1 stop10h 40m

London Heathrow

Sat 17/1

12:05-20:30

1 stop13h 25m

£373

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 9/1

17:45-08:05

1 stop9h 20m

London Heathrow

Sat 17/1

09:50-16:15

1 stop11h 25m

£374

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 13/1

14:20-11:25

2 stops16h 05m

London Heathrow

Tue 20/1

09:50-20:30

2 stops15h 40m

£375

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 18/1

15:20-07:10

1 stop10h 50m

London Heathrow

Sun 25/1

13:25-19:02

1 stop10h 37m

£377

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 19/1

15:20-07:10

1 stop10h 50m

London Heathrow

Sun 25/1

13:25-19:02

1 stop10h 37m

£378

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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

Airlines

Other information

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

In general, September is the cheapest month to fly from Pennsylvania to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £492. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Pennsylvania averaging around £498.

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

On average, the least expensive day to fly to London Heathrow Airport from Pennsylvania is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £503. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £739.

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 midday. momondo users have found flights departing from Pennsylvania to London Heathrow Airport at midday for as low as £543. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £614 on average. Flights to London Heathrow Airport from Pennsylvania in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £610 when searching weeks before you fly. 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 £522 on momondo.

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

There are 3 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 33% 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	£655
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 £655. The best return flight deal from Pennsylvania to London Heathrow Airport found on momondo in the last 72 hours is £402.

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 are updated daily.
How many operators does momondo search for flights from Pennsylvania to London Heathrow Airport?
As of December 2025, there are 12 operators available to choose from for flights from Pennsylvania to London Heathrow Airport.
How old do you have to be to fly from Pennsylvania to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Pennsylvania to London Heathrow Airport is Airbus A350-1000 (39.22% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (37.07%), Boeing 787-8 Dreamliner (17.04%), and Boeing 787 Dreamliner (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
British Airways	PriceFrom £386	Free Cancellation	Rating 6.7 7,562 reviews	Search British Airways flights
Aer Lingus	PriceFrom £394	Free Cancellation	Rating 7.2 1,384 reviews	Search Aer Lingus flights
JetBlue	PriceFrom £429	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Iberia	PriceFrom £464	Free Cancellation	Rating 7.0 3,040 reviews	Search Iberia flights
American Airlines	PriceFrom £512	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pennsylvania to London for you.

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

Yes. momondo enables you to select and highlight flights to London from Pennsylvania with this policy.

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

Once you have performed a search for Pennsylvania to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Pennsylvania to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport trip

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

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Cheap flights from Pennsylvania to London from £125

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 10/12. 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?

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 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?

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

There are 3 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 33% 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?

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

Which airlines fly to London Heathrow Airport?

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

180 flights are operational daily from Pennsylvania to London Heathrow Airport as of December 2025. The most popular departure time for this route is 18:00, with 100% of flights per day taking off in the evening.

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

As of December 2025, there are 1,262 flights per week flying from Pennsylvania to London Heathrow Airport. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

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

If you’re flying from a popular airport in Pennsylvania, such as Philadelphia or Pittsburgh, and flying into London Heathrow Airport, then you can expect flight times to average 6h 59m and 7h 20m, respectively.

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

Travelling 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, organise 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