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Cheap flights from Pennsylvania to London Heathrow Airport from £129

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
30 Jan — 6 Feb1
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 31 December 2025.

Wed 31/1209:45JFK - LHR
2 stops16h 25mMultiple Airlines
Fri 30/106:50LHR - JFK
2 stops19h 08mMultiple Airlines
Deal found 30/12£369
Wed 31/1222:00EWR - LHR
Nonstop7h 25mUnited Airlines
Tue 17/209:00LHR - EWR
1 stop16h 30mUnited Airlines
Deal found 30/12£370
Tue 30/1221:00JFK - LHR
1 stop15h 50mSWISS
Wed 14/120:05LHR - JFK
1 stop22h 00mSWISS
Deal found 30/12£370
Wed 31/1209:45JFK - LHR
2 stops16h 25mMultiple Airlines
Sun 11/120:05LHR - JFK
1 stop22h 00mMultiple Airlines
Deal found 30/12£371
Wed 31/1219:01JFK - LHR
Nonstop6h 54mVirgin Atlantic
Fri 9/120:00LHR - JFK
Nonstop7h 55mVirgin Atlantic
Deal found 30/12£371
Tue 30/1213:00EWR - LHR
1 stop26h 35mAir Canada
Sun 29/308:30LHR - EWR
1 stop12h 09mAir Canada
Deal found 29/12£372
Wed 31/1218:00JFK - LHR
Nonstop7h 20mVirgin Atlantic
Sun 11/120:00LHR - JFK
Nonstop7h 55mVirgin Atlantic
Deal found 29/12£372
Tue 30/1221:44EWR - LHR
1 stop32h 06mUnited Airlines
Sat 10/109:00LHR - EWR
1 stop32h 18mUnited Airlines
Deal found 29/12£373
Tue 30/1210:15JFK - LHR
Nonstop6h 55mBritish Airways
Mon 12/115:35LHR - JFK
Nonstop8h 05mBritish Airways
Deal found 29/12£374
Wed 31/1222:00EWR - LHR
1 stop16h 15mSWISS
Wed 7/106:00LHR - EWR
1 stop12h 55mSWISS
Deal found 31/12£374
Wed 31/1216:50JFK - LHR
1 stop13h 30mMultiple Airlines
Mon 12/120:05LHR - JFK
1 stop22h 00mMultiple Airlines
Deal found 30/12£374
Tue 30/1219:45LGA - LHR
1 stop30h 25mAir Canada
Sun 29/308:30LHR - LGA
1 stop17h 02mAir Canada
Deal found 29/12£375

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 31 December 2025.

Round-trip from

£367

One-way from

£129

Popular in

June

Cheapest in

September

Average price

£666

Good round-trip deal

£454 or less
Aer Lingus
  • Aer Lingus
  • 30/1-1/2
  • 2 total stops
  • 22h 24m total
  • Pennsylvania to London
Search Deals
JetBlue
  • JetBlue
  • 28/1
  • Nonstop
  • 7h 05m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£103 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

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 31 December 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

Mon 2/2

21:10-09:30

Nonstop7h 20m

London Heathrow

Fri 6/2

12:20-15:50

Nonstop8h 30m

£375

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 3/2

09:35-21:40

Nonstop7h 05m

London Heathrow

Sat 7/2

12:20-15:50

Nonstop8h 30m

£375

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 17/1

20:45-09:10

Nonstop7h 25m

London Heathrow

Wed 21/1

09:00-20:30

1 stop16h 30m

£376

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 26/2

22:00-10:25

Nonstop7h 25m

London Heathrow

Wed 4/3

09:00-20:30

1 stop16h 30m

£376

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 13/2

13:00-20:35

1 stop26h 35m

London Heathrow

Thu 19/2

12:05-20:30

1 stop13h 25m

£376

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 13/2

22:00-10:25

Nonstop7h 25m

London Heathrow

Fri 20/2

09:00-20:30

1 stop16h 30m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 22/1

09:35-21:40

Nonstop7h 05m

London Heathrow

Sun 1/2

07:45-11:05

Nonstop8h 20m

£377

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 19/1

08:45-20:45

Nonstop7h 00m

London Heathrow

Thu 29/1

07:25-10:46

Nonstop8h 21m

£377

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 18/2

22:00-10:25

Nonstop7h 25m

London Heathrow

Wed 25/2

14:50-13:55

1 stop28h 05m

£377

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 18/1

08:45-20:45

Nonstop7h 00m

London Heathrow

Fri 30/1

08:05-11:29

Nonstop8h 24m

£377

Flights are sorted by cheapest return flights first.

Deals found on 30/12

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 £358). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £611). 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 31 December 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to London Heathrow Airport as you normally would.

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 31 December 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).

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

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 Virgin Atlantic 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 £196 on Kenya Airways. Other airlines that offer cheap prices include SAUDIA from £230 and Emirates from £343 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 Washington, D.C. Dulles Intl - 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 (90%), Malaysia Airlines (89%) and American Airlines (87%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £416. On average you can expect to pay £1,284. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £311.

  • 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 £358). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £611). 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
Luton
Slough
Northampton
Hounslow
Gatwick
Ilford
Wembley
Hayes
Brentford
Colchester
Watford
Crawley
Swindon
Bedford
Chelmsford
Romford
Eastbourne
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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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
Boston to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Gatwick flights
Newark to Gatwick flights
LaGuardia to Heathrow flights
John F Kennedy Intl to Stansted flights
Los Angeles to Heathrow flights
LaGuardia to Gatwick flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
San Francisco to Heathrow flights
Seattle to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Newark to London City flights
Newark to Stansted flights
Boston to Gatwick flights
Atlanta to Heathrow flights
Newark to Luton flights
Orlando to Heathrow flights
Dulles Intl to Gatwick flights
Miami to Heathrow flights
Reagan-National to Heathrow flights
Boston to London City flights
Hobby to Heathrow flights
Philadelphia to Heathrow flights
Denver to Heathrow flights
Baltimore to Gatwick flights
Dulles Intl to London City flights
Minneapolis to Heathrow flights
Reagan-National to Gatwick flights
Boston to Stansted flights
O'Hare Intl to Gatwick flights
George Bush Intcntl to Heathrow flights
Los Angeles to Gatwick flights
Raleigh to Heathrow flights
Tampa to Heathrow flights
San Francisco to Gatwick flights
O'Hare Intl to London City flights
Charlotte to Heathrow flights
Los Angeles to London City flights
O'Hare Intl to Stansted flights
Seattle to Gatwick flights
Detroit to Heathrow flights
San Francisco to London City flights
Austin to Heathrow 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 31 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£382Average£543FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£389Average£526FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£424Average£513FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£507Average£661FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,025Average£1,131FlexibilityNo 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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