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Cheap flights from Pennsylvania to London Heathrow Airport from £138

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
11 jan — 18 jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pennsylvania to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Pennsylvania to Heathrow
Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 dezembro 2025.

qui 11/1213:00EWR - LHR
1 stop26h 35mAir Canada
qui 22/109:00LHR - EWR
1 stop32h 18mAir Canada
Deal found 10/12£368
ter 30/1213:00EWR - LHR
1 stop26h 35mMultiple Airlines
qua 14/117:10LHR - EWR
1 stop25h 45mMultiple Airlines
Deal found 10/12£370
sex 12/1212:02EWR - LHR
1 stop16h 18mMultiple Airlines
qua 24/1220:05LHR - EWR
1 stop22h 50mMultiple Airlines
Deal found 10/12£371
qui 11/1220:10EWR - LHR
1 stop32h 10mUnited Airlines
qui 18/1209:05LHR - EWR
1 stop34h 10mUnited Airlines
Deal found 10/12£373
ter 30/1213:00EWR - LHR
1 stop26h 35mMultiple Airlines
dom 11/120:05LHR - EWR
1 stop22h 50mMultiple Airlines
Deal found 10/12£374
sex 12/1208:20JFK - LHR
Nonstop6h 50mVirgin Atlantic
sex 19/1212:40LHR - JFK
Nonstop8h 19mVirgin Atlantic
Deal found 11/12£374
qua 10/1206:00EWR - LHR
1 stop23h 50mUnited Airlines
dom 14/1209:00LHR - EWR
1 stop32h 18mUnited Airlines
Deal found 10/12£375
qui 11/1210:15JFK - LHR
Nonstop6h 55mBritish Airways
qua 18/216:25LHR - JFK
Nonstop8h 10mBritish Airways
Deal found 11/12£375
sex 12/1213:05LGA - LHR
1 stop13h 05mAir Canada
sáb 10/111:10LHR - LGA
1 stop12h 53mAir Canada
Deal found 11/12£376
qui 11/1213:00EWR - LHR
1 stop26h 35mAir Canada
seg 15/1209:00LHR - EWR
1 stop32h 18mAir Canada
Deal found 11/12£376
qua 10/1216:50JFK - LHR
1 stop13h 30mMultiple Airlines
sáb 13/1218:40LHR - JFK
1 stop23h 25mMultiple Airlines
Deal found 10/12£376
qua 31/1206:00LGA - LHR
1 stop23h 50mUnited Airlines
sex 9/113:25LHR - LGA
1 stop27h 32mUnited Airlines
Deal found 10/12£376

Find flight deals from Pennsylvania to Heathrow

Keep the following information in mind while searching for Pennsylvania to Heathrow flight deals. Data was last updated 12 dezembro 2025.

Round-trip from

£367

One-way from

£138

Popular in

June

Cheapest in

September

Average price

£671

Good round-trip deal

£383 or less

Good one-way deal

£653 or less
SWISS
  • SWISS
  • 7/1-24/3
  • 2 total stops
  • 43h 05m total
  • Pennsylvania to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 2/3
  • 1 total stop
  • 22h 55m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Pennsylvania to London Heathrow.
Search Deals
Price to beat on a one-way flight from Pennsylvania to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Pennsylvania to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 dezembro 2025.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Pennsylvania

Fly to

Heathrow

Route

Depart

Return

Price

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

qui 5/2

21:10-09:30

Nonstop7h 20m

London Heathrow

qui 12/2

12:20-15:52

Nonstop8h 32m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

seg 5/1

08:45-20:45

Nonstop7h 00m

London Heathrow

qui 22/1

07:25-10:46

Nonstop8h 21m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

seg 16/3

22:14-09:30

Nonstop7h 16m

London Heathrow

qui 26/3

12:20-16:52

Nonstop8h 32m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

qua 14/1

09:35-21:40

Nonstop7h 05m

London Heathrow

sáb 24/1

08:05-11:29

Nonstop8h 24m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

dom 25/1

21:10-09:30

Nonstop7h 20m

London Heathrow

sex 30/1

08:05-11:29

Nonstop8h 24m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

qui 19/2

09:33-21:40

Nonstop7h 07m

London Heathrow

sex 27/2

12:20-15:52

Nonstop8h 32m

£376

NewarkLondon

EWR - LHR

EWRLHR

Newark

qua 7/1

15:00-06:40

1 stop10h 40m

London Heathrow

qui 22/1

12:05-20:30

1 stop13h 25m

£380

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

qui 12/2

09:45-08:30

1 stop17h 45m

London Heathrow

dom 22/2

13:45-13:05

1 stop28h 20m

£382

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

sáb 10/1

19:29-06:40

1 stop30h 11m

London Heathrow

sáb 17/1

13:25-11:58

1 stop27h 33m

£382

NewarkLondon

EWR - LHR

EWRLHR

Newark

sáb 10/1

11:31-20:35

1 stop28h 04m

London Heathrow

sáb 17/1

12:05-20:30

1 stop13h 25m

£384

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Heathrow

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

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

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £361). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £615). 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 PA to LHR?

Find hourly flight availability from Pennsylvania to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 dezembro 2025.

It’s typically best to fly out from Pennsylvania to London Heathrow Airport in the evening. Doing so could potentially save you 42% on the flight price compared to flying at midday, which is usually more expensive.

Weekly flight availability from Pennsylvania to London Heathrow Airport

Explore weekly flight availability from Pennsylvania to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 dezembro 2025.

The most flights from USPA to LHR are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Pennsylvania to London Heathrow Airport in 7h 20m. Fly via JetBlue, United Airlines, or Delta to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3440 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as £198 on Kenya Airways. Other airlines that offer cheap prices include SAUDIA from £231 and Emirates from £340 one-way.

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

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

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

    The top 3 most reliable airlines when flying from Pennsylvania to London Heathrow Airport are Finnair (85%), Malaysia Airlines (85%) and American Airlines (84%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £327. On average you can expect to pay £1,089. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £279.

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

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

  • How can I find direct flights from Pennsylvania to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to Heathrow 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 Pennsylvania to London Heathrow Airport?

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £361). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £615). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Northampton
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Swindon
Deal
Bedford
Romford
Chichester

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Alternative routes for Pennsylvania to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
Boston to Heathrow flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Newark to Gatwick flights
Los Angeles to Heathrow flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
Dulles Intl to Heathrow flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
Baltimore to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
Newark to London City flights
Miami to Heathrow flights
Newark to Stansted flights
Boston to Gatwick flights
Newark to Luton flights
Boston to London City flights
Atlanta to Heathrow flights
Hobby to Heathrow flights
Dulles Intl to Gatwick flights
Orlando to Heathrow flights
Denver to Heathrow flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Los Angeles to Gatwick flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to Gatwick flights
George Bush Intcntl to Heathrow flights
Los Angeles to London City flights
Boston to Stansted flights
San Francisco to Gatwick flights
Tampa to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to London City flights
Charlotte to Heathrow flights
Austin to Heathrow flights
San Francisco to London City flights
Detroit to Heathrow flights
San Diego to Heathrow flights
Boston to Luton flights
O'Hare Intl to Stansted flights

Top 5 airlines flying from Pennsylvania to Heathrow

Discover the top 5 airlines that operate flights from Pennsylvania to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 dezembro 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£385Average£553FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£392Average£692FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£428Average£521FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£510Average£666FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,033Average£1,139FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Pennsylvania to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Pennsylvania to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Pennsylvania to Heathrow with no change fees.

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

Yes, Cheapflights offers price alerts on Pennsylvania to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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