How long is the flight from London Heathrow Airport to Pennsylvania?

Scandinavian Airlines and United Airlines can get you from London Heathrow Airport to Pennsylvania in just under 22h 39m. Your travel time can differ by up to 2h 15m. The distance from London Heathrow Airport to Pennsylvania is about 3708 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from London Heathrow Airport to Pennsylvania one-way?

One-way options have recently been found by users for as low as £324 on SAUDIA. Other airlines that offer cheap prices include Air India from £393 and Emirates from £490 one-way.

In terms of precipitation, rainfall in Pennsylvania ranges from 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Pennsylvania when rainfall is around 69.0 mm.

If weather is an important factor for your trip to Pennsylvania, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

What are the most popular routes from London Heathrow Airport to Pennsylvania?

The most popular flight routes from London Heathrow Airport to Pennsylvania are London Heathrow - New York John F Kennedy Intl, London Heathrow - Newark and London Heathrow - New York LaGuardia.

What are the cheapest flights from London Heathrow Airport to Pennsylvania?

Looking for the cheapest flight from London Heathrow Airport to Pennsylvania? While on average our users pay £1,002, our data indicates the cheapest price to be £410. The most popular route (London Heathrow - New York John F Kennedy Intl), is priced around £371.

What are the most reliable airlines from London Heathrow Airport to Pennsylvania?

Before booking your flight to Pennsylvania from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (85%), Finnair (70%), Iberia( 70%).

What are the most popular airlines that fly from London Heathrow Airport to Pennsylvania?

When booking a flight from London Heathrow Airport to Pennsylvania, you may want to consider flying on Emirates, Turkish Airlines or Air Mauritius as they are the most popular for this route.

Can I find deals for flights from Heathrow to Pennsylvania that include hotel bookings?

Yes. In addition to deals on Heathrow to Pennsylvania flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Pennsylvania?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Pennsylvania.

Can I find deals for business class flights from Heathrow to Pennsylvania?

Yes. Cheapflights offers flight deals from Heathrow to Pennsylvania by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£322+ Cheap Flights from London Heathrow Airport to Pennsylvania

Cheap flight deals from Heathrow to Pennsylvania

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Pennsylvania
Explore the most affordable flight options available from Heathrow to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Fri 20/1106:40 -

2 stops23h 06m

Mon 30/1115:14 -

2 stops21h 26m

Deal found 20/10£565

Wed 18/1106:40 -

2 stops19h 50m

Mon 30/1117:08 -

2 stops20h 22m

Deal found 20/10£584

Mon 16/1106:40 -

2 stops19h 50m

Mon 23/1106:00 -

2 stops29h 00m

Deal found 19/10£588

Mon 23/1107:50 -

2 stops20h 41m

Mon 30/1119:40 -

1 stop10h 10m

Deal found 20/10£591

Mon 30/1113:00 -

2 stops32h 21m

Sun 6/1215:20 -

2 stops24h 40m

Deal found 17/10£592

Mon 16/1109:00 -

2 stops18h 46m

Mon 23/1115:20 -

1 stop10h 50m

Deal found 17/10£594

Mon 16/1107:05 -

3 stops29h 16m

Mon 23/1112:38 -

2 stops22h 22m

Deal found 16/10£594

Mon 2/1109:20 -

1 stop12h 57m

Sun 15/1106:20 -

1 stop9h 35m

Deal found 19/10£595

Mon 16/1109:50 -

1 stop11h 20m

Mon 23/1117:40 -

1 stop18h 10m

Deal found 19/10£596

Mon 23/1113:00 -

2 stops49h 49m

Thu 3/1215:20 -

1 stop10h 50m

Deal found 20/10£597

Tue 24/1113:00 -

2 stops25h 49m

Mon 30/1115:20 -

1 stop10h 50m

Deal found 19/10£597

Sat 7/1106:40 -

2 stops19h 51m

Mon 9/1107:20 -

3 stops27h 40m

Deal found 16/10£613

Best flights from Heathrow to Pennsylvania
Discover carefully curated flight deals from Heathrow to Pennsylvania that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Mon 22/206:40 -

2 stops22h 39m

Fri 5/313:05 -

2 stops21h 55m

Deal found 20/10£585

Tue 23/213:35 -

2 stops24h 54m

Tue 2/314:37 -

1 stop11h 03m

Deal found 17/10£602

Mon 16/1106:05 -

1 stop13h 55m

Mon 23/1118:35 -

Nonstop7h 00m

Deal found 18/10£677

Thu 5/1109:20 -

1 stop12h 48m

Thu 12/1115:35 -

1 stop10h 20m

Deal found 19/10£678

Thu 3/1206:00 -

2 stops19h 30m

Thu 10/1212:10 -

2 stops25h 45m

Deal found 19/10£681

Wed 11/1106:30 -

1 stop12h 30m

Wed 18/1120:50 -

1 stop10h 30m

Deal found 17/10£684

Mon 16/1106:40 -

2 stops19h 50m

Mon 23/1106:00 -

2 stops29h 00m

Deal found 19/10£588

Thu 3/1207:30 -

1 stop13h 35m

Thu 10/1209:15 -

2 stops19h 05m

Deal found 19/10£610

Sat 7/1106:40 -

2 stops19h 51m

Mon 9/1107:20 -

3 stops27h 40m

Deal found 16/10£613

Sat 21/1118:00 -

2 stops25h 16m

Sun 22/1117:05 -

1 stop13h 15m

Deal found 19/10£615

Sat 16/119:55 -

3 stops41h 42m

Sat 30/121:10 -

2 stops34h 30m

Deal found 16/10£697

Fri 4/1209:20 -

1 stop16h 10m

Fri 11/1206:20 -

1 stop9h 35m

Deal found 20/10£698

Tue 17/1108:15 -

3 stops40h 38m

Tue 24/1112:26 -

3 stops28h 09m

Deal found 18/10£703

Mon 2/1106:40 -

2 stops18h 23m

Mon 16/1112:25 -

2 stops22h 35m

Deal found 16/10£613

Sun 14/306:00 -

3 stops30h 58m

Sun 28/307:00 -

2 stops24h 45m

Deal found 16/10£713

Fri 27/1113:00 -

1 stop30h 39m

Sat 5/1206:00 -

2 stops19h 30m

Deal found 18/10£651

Wed 2/1206:40 -

3 stops19h 36m

Wed 9/1215:13 -

2 stops21h 27m

Deal found 18/10£622

Tue 24/1113:10 -

1 stop25h 17m

Tue 1/1205:23 -

1 stop20h 12m

Deal found 18/10£767

Wed 2/1206:35 -

2 stops17h 27m

Wed 9/1215:10 -

1 stop14h 40m

Deal found 18/10£657

Sun 1/1106:40 -

2 stops19h 51m

Mon 16/1112:20 -

2 stops24h 20m

Deal found 20/10£627

Tue 1/1209:30 -

2 stops29h 12m

Tue 8/1215:12 -

2 stops25h 08m

Deal found 17/10£667

Thu 5/1107:30 -

1 stop13h 35m

Wed 11/1109:15 -

2 stops30h 45m

Deal found 19/10£668

Wed 2/1215:40 -

1 stop13h 19m

Wed 9/1207:42 -

1 stop22h 53m

Deal found 18/10£939

Mon 23/1113:45 -

2 stops38h 45m

Sun 29/1120:00 -

1 stop29h 40m

Deal found 19/10£672

Tue 17/1107:30 -

2 stops14h 43m

Tue 24/1116:06 -

1 stop10h 49m

Deal found 18/10£678

Tue 17/1107:40 -

2 stops21h 04m

Tue 24/1113:49 -

1 stop11h 06m

Deal found 20/10£691

Thu 3/1207:30 -

2 stops18h 46m

Mon 7/1219:54 -

2 stops30h 16m

Deal found 16/10£700

Thu 3/1212:00 -

2 stops26h 42m

Thu 10/1215:12 -

2 stops20h 08m

Deal found 19/10£719

Fri 4/1207:30 -

2 stops18h 27m

Fri 11/1215:12 -

2 stops34h 58m

Deal found 19/10£729

Sat 14/1115:10 -

2 stops23h 40m

Sat 21/1117:40 -

1 stop31h 15m

Deal found 17/10£751

Find flight deals from Heathrow to Pennsylvania

Round-trip from	£565
One-way from	£322
Popular in	August
Cheapest in	January
Average price	£674
Good round-trip deal	£594 or less
Good one-way deal	£490 or less

Scandinavian Airlines
20/11-30/11
4 total stops
44h 32m total
London to Pennsylvania

Search Deals

Aer Lingus
23/3-31/12
1 total stop
11h 20m total
London to Pennsylvania

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£60 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from London Heathrow to Pennsylvania.

Search Deals

Price to beat on a one-way flight from London Heathrow to Pennsylvania.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 1/3

06:30-14:05

1 stop12h 35m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£416

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 25/11

09:00-09:49

2 stops29h 49m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£416

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 16/12

20:50-16:10

2 stops24h 20m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£424

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Tue 24/11

20:05-21:38

2 stops30h 33m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£443

LondonPittsburgh

LHR London Heathrow - PIT Pittsburgh

LHRPIT

London Heathrow

Mon 7/12

09:20-11:20

1 stop31h 00m

Pittsburgh

Wed 31/12

00:00-06:00

Nonstop0h 00m

£445

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Tue 15/12

06:35-16:05

2 stops14h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£449

LondonPittsburgh

LHR London Heathrow - PIT Pittsburgh

LHRPIT

London Heathrow

Mon 30/11

18:00-18:36

1 stop29h 36m

Pittsburgh

Wed 31/12

00:00-06:00

Nonstop0h 00m

£461

LondonPittsburgh

LHR London Heathrow - PIT Pittsburgh

LHRPIT

London Heathrow

Mon 30/11

18:00-16:57

2 stops27h 57m

Pittsburgh

Wed 31/12

00:00-06:00

Nonstop0h 00m

£463

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Sat 28/11

06:50-18:51

2 stops17h 01m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£467

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 30/12

17:20-14:21

1 stop26h 01m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£469

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 54 resultsSorted by cheapest first

...

Best time to book a flight from Heathrow to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Heathrow with our price prediction graph.

LHR-PIT

LHR-PHL

LHR-SCE

LHR-AVP

LHR-ERI

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Pennsylvania

LHR-USPA

LHR-PIT

LHR-PHL

LHR-SCE

LHR-AVP

What is the cheapest month to book a flight from London Heathrow Airport to Pennsylvania?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Pennsylvania (average of £586). Flying from London Heathrow Airport to Pennsylvania in August is currently the most expensive (average of £888). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to PA?

When flying from London Heathrow Airport to Pennsylvania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from London Heathrow Airport to Pennsylvania?

Airfare is below average for this route at the moment.

London Heathrow Airport to Pennsylvania flights typically cost between £619 and £734 in January.
The cheapest return price found within the last 5 days was £589 on Scandinavian Airlines (26 Jan–3 Feb).

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Pennsylvania, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Pennsylvania

Read reviews from past customers who have flown with Finnair,Aer Lingus, andJetBlue from London Heathrow Airport to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,416 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Finnair

7.6

Good

1,416 reviews

Finnair

7.6

Good

1,416 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Aer Lingus

7.3

Good

1,850 reviews

Finnair

7.6

Good

1,416 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

JetBlue

7.1

Good

3,060 reviews

Finnair

7.6

Good

1,416 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

American Airlines

7.0

Good

12,181 reviews

Finnair

7.6

Good

1,416 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

British Airways

6.7

Okay

8,272 reviews

Finnair

7.6

Good

1,416 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

How long is the flight from London Heathrow Airport to Pennsylvania?
Scandinavian Airlines and United Airlines can get you from London Heathrow Airport to Pennsylvania in just under 22h 39m. Your travel time can differ by up to 2h 15m. The distance from London Heathrow Airport to Pennsylvania is about 3708 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from London Heathrow Airport to Pennsylvania one-way?
One-way options have recently been found by users for as low as £324 on SAUDIA. Other airlines that offer cheap prices include Air India from £393 and Emirates from £490 one-way.
What are the most popular routes from London Heathrow Airport to Pennsylvania?
The most popular flight routes from London Heathrow Airport to Pennsylvania are London Heathrow - New York John F Kennedy Intl, London Heathrow - Newark and London Heathrow - New York LaGuardia.
What are the most reliable airlines from London Heathrow Airport to Pennsylvania?
Before booking your flight to Pennsylvania from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (85%), Finnair (70%), Iberia( 70%).
What are the cheapest flights from London Heathrow Airport to Pennsylvania?
Looking for the cheapest flight from London Heathrow Airport to Pennsylvania? While on average our users pay £1,002, our data indicates the cheapest price to be £410. The most popular route (London Heathrow - New York John F Kennedy Intl), is priced around £371.
Can I find deals for flights from Heathrow to Pennsylvania that include hotel bookings?
Yes. In addition to deals on Heathrow to Pennsylvania flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Pennsylvania?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Pennsylvania.
Can I find deals for business class flights from Heathrow to Pennsylvania?
Yes. Cheapflights offers flight deals from Heathrow to Pennsylvania by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Pennsylvania?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Pennsylvania (average of £586). Flying from London Heathrow Airport to Pennsylvania in August is currently the most expensive (average of £888). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Pennsylvania

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Stansted to Boston flights

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London City to Dallas/Fort Worth flights

Heathrow to Sky Harbor Intl flights

Stansted to O'Hare Intl flights

Heathrow to Denver flights

Top 10 airlines flying from Heathrow to Pennsylvania

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£256	Average£257	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
JetBlue	Cheapest£421	Average£577	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Finnair	Cheapest£450	Average£727	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£455	Average£791	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
American Airlines	Cheapest£466	Average£770	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Aer Lingus	Cheapest£480	Average£757	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
United Airlines	Cheapest£494	Average£814	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
British Airways	Cheapest£496	Average£730	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Icelandair	Cheapest£557	Average£674	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Lufthansa	Cheapest£584	Average£810	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Pennsylvania?

Cheapflights helps you search for flights from Heathrow to Pennsylvania via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Pennsylvania?

Cheapflights helps you find that perfect flight to Pennsylvania from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Pennsylvania with no change fees?

Need flexible booking options for your flight to Pennsylvania from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Pennsylvania become cheaper?

Yes! Start tracking prices for Heathrow to Pennsylvania flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from London Heathrow Airport to Pennsylvania from £322

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Pennsylvania

Cheapest flights from Heathrow to PennsylvaniaExplore the most affordable flight options available from Heathrow to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Explore the most affordable flight options available from Heathrow to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Best flights from Heathrow to PennsylvaniaDiscover carefully curated flight deals from Heathrow to Pennsylvania that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Discover carefully curated flight deals from Heathrow to Pennsylvania that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Direct flights from Heathrow to PennsylvaniaExplore direct flight options from Heathrow to Pennsylvania based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 October 2026.

Explore direct flight options from Heathrow to Pennsylvania based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 October 2026.

Last-minute flights from Heathrow to PennsylvaniaDiscover last-minute flight deals from Heathrow to Pennsylvania. Data last updated 21 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Pennsylvania. Data last updated 21 October 2026 and is based on user searches.

One-way flights from Heathrow to PennsylvaniaSearch for one-way flight options from Heathrow to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

Search for one-way flight options from Heathrow to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

Find flight deals from Heathrow to Pennsylvania

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Heathrow with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London Heathrow Airport to Pennsylvania?

What is the cheapest time of day to fly from LHR to PA?

Find hourly flight availability from Heathrow to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 October 2026.

When flying from London Heathrow Airport to Pennsylvania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from London Heathrow Airport to Pennsylvania?

Airfare is below average for this route at the moment.

London Heathrow Airport to Pennsylvania flights typically cost between £619 and £734 in January.The cheapest return price found within the last 5 days was £589 on Scandinavian Airlines (26 Jan–3 Feb).

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Pennsylvania, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Pennsylvania

Read reviews from past customers who have flown with Finnair,Aer Lingus, andJetBlue from London Heathrow Airport to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London Heathrow Airport to Pennsylvania?

What are the cheapest airlines to fly from London Heathrow Airport to Pennsylvania one-way?

What are the most popular routes from London Heathrow Airport to Pennsylvania?

What are the most reliable airlines from London Heathrow Airport to Pennsylvania?

What are the cheapest flights from London Heathrow Airport to Pennsylvania?

Can I find deals for flights from Heathrow to Pennsylvania that include hotel bookings?

How can I find direct flights from Heathrow to Pennsylvania?

Can I find deals for business class flights from Heathrow to Pennsylvania?

What is the cheapest month to book a flight from London Heathrow Airport to Pennsylvania?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Pennsylvania by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Heathrow to Pennsylvania by cabin class

Find flights from Heathrow to Pennsylvania, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Pennsylvania flights

Browse other Heathrow and Pennsylvania flight options. Last updated on 21 October 2026.

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Cheapest flights from Heathrow to Pennsylvania
Explore the most affordable flight options available from Heathrow to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Best flights from Heathrow to Pennsylvania
Discover carefully curated flight deals from Heathrow to Pennsylvania that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Direct flights from Heathrow to Pennsylvania
Explore direct flight options from Heathrow to Pennsylvania based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 October 2026.

Last-minute flights from Heathrow to Pennsylvania
Discover last-minute flight deals from Heathrow to Pennsylvania. Data last updated 21 October 2026 and is based on user searches.

One-way flights from Heathrow to Pennsylvania
Search for one-way flight options from Heathrow to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

London Heathrow Airport to Pennsylvania flights typically cost between £619 and £734 in January.
The cheapest return price found within the last 5 days was £589 on Scandinavian Airlines (26 Jan–3 Feb).