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Cheap flights from Pennsylvania to London Heathrow Airport from £110

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
2 Dec — 9 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 2 November 2025.

Mon 1/1216:25JFK - LHR
1 stop20h 25mSWISS
Mon 8/1206:00LHR - JFK
1 stop12h 05mSWISS
Deal found 2/11£363
Mon 17/1115:20LGA - LHR
1 stop10h 50mAir Canada
Mon 24/1113:25LHR - LGA
1 stop10h 38mAir Canada
Deal found 1/11£363
Mon 17/1117:00JFK - LHR
1 stop10h 05mAer Lingus
Mon 24/1110:00LHR - JFK
1 stop11h 25mAer Lingus
Deal found 1/11£363
Sun 9/1110:05JFK - LHR
2 stops18h 15mMultiple Airlines
Sun 16/1106:00LHR - JFK
1 stop12h 05mMultiple Airlines
Deal found 1/11£364
Thu 4/1217:00JFK - LHR
1 stop10h 05mAer Lingus
Sun 7/1210:00LHR - JFK
1 stop11h 25mAer Lingus
Deal found 2/11£365
Tue 2/1217:00JFK - LHR
1 stop12h 10mAer Lingus
Sun 7/1210:00LHR - JFK
1 stop11h 25mAer Lingus
Deal found 1/11£366
Thu 4/1215:30LGA - LHR
1 stop12h 00mMultiple Airlines
Tue 9/1206:50LHR - LGA
2 stops15h 09mMultiple Airlines
Deal found 31/10£366
Tue 4/1118:10JFK - LHR
1 stop14h 55mAustrian Airlines
Sat 8/1106:00LHR - JFK
1 stop13h 15mAustrian Airlines
Deal found 31/10£366
Tue 2/1208:20JFK - LHR
Nonstop6h 50mVirgin Atlantic
Sun 7/1220:00LHR - JFK
Nonstop7h 55mVirgin Atlantic
Deal found 2/11£367
Wed 12/1119:01JFK - LHR
Nonstop6h 54mVirgin Atlantic
Wed 19/1108:40LHR - JFK
1 stop12h 05mVirgin Atlantic
Deal found 2/11£368
Mon 17/1119:01JFK - LHR
Nonstop6h 54mVirgin Atlantic
Mon 24/1110:00LHR - JFK
1 stop10h 45mVirgin Atlantic
Deal found 2/11£369
Mon 17/1110:05JFK - LHR
1 stop16h 05mMultiple Airlines
Mon 24/1106:00LHR - JFK
1 stop12h 05mMultiple Airlines
Deal found 2/11£369

Cheap flight deals from Pennsylvania to Heathrow

Keep the following information in mind while searching for Pennsylvania to Heathrow flight deals. Data was last updated 2 November 2025.

Round-trip from

£363

One-way from

£110

Popular in

June

Cheapest in

September

Average price

£535

Good round-trip deal

£482 or less
SWISS
  • SWISS
  • 1/12-8/12
  • 2 total stops
  • 32h 30m total
  • Pennsylvania to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 9/11
  • Nonstop
  • 7h 20m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 2 November 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

Thu 4/12

09:40-21:40

Nonstop7h 00m

London Heathrow

Sat 17/1

08:05-11:29

Nonstop8h 24m

£382

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 13/1

09:35-21:40

Nonstop7h 05m

London Heathrow

Mon 9/2

12:20-15:52

Nonstop8h 32m

£382

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 4/12

09:40-21:40

Nonstop7h 00m

London Heathrow

Wed 10/12

07:25-10:37

Nonstop8h 12m

£382

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 24/1

08:25-20:35

Nonstop7h 10m

London Heathrow

Tue 27/1

12:05-20:30

1 stop13h 25m

£384

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 4/12

08:20-20:10

Nonstop6h 50m

London Heathrow

Mon 15/12

06:30-13:15

1 stop11h 45m

£385

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 18/11

21:00-09:35

Nonstop7h 35m

London Heathrow

Tue 25/11

08:40-15:45

1 stop12h 05m

£385

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 12/11

22:00-10:15

Nonstop7h 15m

London Heathrow

Sun 16/11

08:40-15:45

1 stop12h 05m

£385

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 10/3

19:50-10:50

1 stop11h 00m

London Heathrow

Mon 16/3

12:05-21:30

1 stop13h 25m

£385

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 12/3

19:50-10:50

1 stop11h 00m

London Heathrow

Wed 18/3

12:05-21:30

1 stop13h 25m

£385

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 3/12

22:00-10:15

Nonstop7h 15m

London Heathrow

Thu 11/12

08:40-15:45

1 stop12h 05m

£386

Flights are sorted by cheapest return flights first.

Deals found on 1/11

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 £367). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £664). 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 2 November 2025.

It’s typically best to fly out from Pennsylvania to London Heathrow Airport in the evening. Doing so could potentially save you 41% 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 2 November 2025.

The most flights from USPA to LHR are scheduled on a Sunday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 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 6h 50m. 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. All flights are typically direct.

  • 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 £132 on JetBlue. Other airlines that offer cheap prices include Virgin Atlantic from £132 and Delta from £133 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 Malaysia Airlines (83%), Iberia (82%) and British Airways (81%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £520. On average you can expect to pay £685. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £296.

  • 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 £367). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £664). 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
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Chichester
Swindon
Crawley
Romford
Brentford
Ipswich

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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.
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Dulles Intl to London City flights
Los Angeles to London City flights
Boston to Stansted flights
Philadelphia to Heathrow flights
San Francisco to Gatwick flights
Hobby to Heathrow flights
O'Hare Intl to Gatwick flights
Boston to Luton flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
Denver to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to London City flights
Dallas/Fort Worth to Gatwick flights
Tampa to Heathrow flights
San Francisco to London City flights
Charlotte to Heathrow flights
Minneapolis to Heathrow flights
Detroit to Heathrow flights
Seattle to Gatwick 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 2 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£398Average£570FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£399Average£748FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£435Average£571FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£471Average£548FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£520Average£678FlexibilityNo cancel feeOn-time71%
Search American 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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