Find flights
Deals
When to book
FAQs

Cheap flights from Pennsylvania to London Heathrow Airport from £118

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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

£309

One-way from

£118

Popular in

June

Cheapest in

February

Average price

£506

Good round-trip deal

£381 or less

Good one-way deal

£304 or less
British Airways
  • British Airways
  • 17/10-19/10
  • 1 total stop
  • 28h 15m total
  • Pennsylvania to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 26/10
  • 1 total stop
  • 19h 40m 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 August 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

Find flight deals from Pennsylvania to Heathrow

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 29 August 2025.

Fri 17/1019:10JFK - LHR
1 stop20h 20mBritish Airways
Sun 19/1017:00LHR - JFK
Nonstop7h 55mBritish Airways
Deal found 27/8£309
Thu 25/918:25JFK - LHR
1 stop23h 15mAer Lingus
Thu 2/1009:50LHR - JFK
1 stop12h 00mAer Lingus
Deal found 26/8£310
Tue 18/1120:40JFK - LHR
Nonstop7h 00mAmerican Airlines
Thu 20/1106:15LHR - JFK
1 stop12h 05mAmerican Airlines
Deal found 28/8£313
Fri 26/916:50JFK - LHR
1 stop17h 05mIberia
Sun 28/908:55LHR - JFK
1 stop10h 35mIberia
Deal found 29/8£315
Fri 12/917:30JFK - LHR
1 stop11h 25mMultiple Airlines
Sun 14/906:00LHR - JFK
1 stop11h 50mMultiple Airlines
Deal found 28/8£315
Sat 15/1123:45JFK - LHR
1 stop28h 25mLEVEL
Tue 18/1109:55LHR - JFK
1 stop17h 05mLEVEL
Deal found 27/8£317
Sun 9/1123:45JFK - LHR
1 stop28h 25mLEVEL
Sun 16/1109:55LHR - JFK
1 stop17h 05mLEVEL
Deal found 28/8£318
Fri 19/919:25JFK - LHR
1 stop13h 15mMultiple Airlines
Sun 21/906:50LHR - JFK
1 stop11h 10mMultiple Airlines
Deal found 28/8£320
Fri 17/1016:15JFK - LHR
1 stop19h 10mMultiple Airlines
Sun 19/1006:50LHR - JFK
1 stop11h 10mMultiple Airlines
Deal found 28/8£322
Sun 9/1123:45JFK - LHR
1 stop13h 15mLEVEL
Wed 12/1109:55LHR - JFK
1 stop17h 05mLEVEL
Deal found 27/8£323
Fri 12/917:30JFK - LHR
1 stop9h 20mIberia
Sun 14/906:10LHR - JFK
1 stop13h 40mIberia
Deal found 27/8£324
Mon 13/1017:45LGA - LHR
1 stop10h 50mLufthansa
Wed 22/1014:05LHR - LGA
1 stop10h 32mLufthansa
Deal found 27/8£340

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 29 August 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

Tue 13/1

23:45-18:00

1 stop13h 15m

London Heathrow

Mon 2/2

18:50-22:00

1 stop32h 10m

£323

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 12/1

23:45-18:00

1 stop13h 15m

London Heathrow

Sun 18/1

18:50-22:00

1 stop32h 10m

£331

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 19/11

23:45-18:00

1 stop13h 15m

London Heathrow

Wed 26/11

09:55-22:00

1 stop17h 05m

£338

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 15/2

23:45-09:10

1 stop28h 25m

London Heathrow

Sun 22/2

18:50-22:00

1 stop32h 10m

£346

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 10/11

23:45-18:00

1 stop13h 15m

London Heathrow

Tue 25/11

09:55-22:00

1 stop17h 05m

£357

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 23/11

18:25-06:20

Nonstop6h 55m

London Heathrow

Sat 6/12

07:30-19:05

1 stop16h 35m

£360

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 24/10

18:55-16:00

1 stop16h 05m

London Heathrow

Sun 26/10

13:55-16:45

2 stops30h 50m

£360

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 3/10

22:05-21:20

2 stops42h 15m

London Heathrow

Mon 6/10

07:05-19:59

2 stops17h 54m

£363

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 16/10

19:05-09:35

1 stop9h 30m

London Heathrow

Fri 31/10

13:25-21:33

1 stop12h 08m

£365

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 23/2

18:30-16:25

1 stop16h 55m

London Heathrow

Mon 2/3

19:50-13:35

2 stops22h 45m

£365

Flights are sorted by cheapest return flights first.

Deals found on 29/8

Showing 1-10 of 60 results
1
2
3
...
6

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, January is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £112). Flying from Pennsylvania to London Heathrow Airport in August is currently the most expensive (average of £164). 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 29 August 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 29 August 2025.

The most flights from USPA to LHR are scheduled on a Thursday (15 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 9h 30m. Fly via LEVEL, Scandinavian Airlines, or Air Canada to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3438 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 £123 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Virgin Atlantic from £158 and Air Canada from £161 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 Newark - London Heathrow, New York John F Kennedy Intl - 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 Aer Lingus (80%), American Airlines (67%) and Finnair (67%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £292. On average you can expect to pay £388. The most popular route, (Newark - London Heathrow), can usually be booked for £299.

  • 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, January is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £112). Flying from Pennsylvania to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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 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
Newark to Gatwick flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Stansted flights
Newark to London City flights
LaGuardia to Heathrow flights
LaGuardia to Gatwick flights
Boston to Heathrow flights
Newark to Stansted flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
Newark to Luton flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
Boston to Gatwick flights
Atlanta to Heathrow flights
Miami to Heathrow flights
Denver to Heathrow flights
Orlando to Heathrow flights
Boston to London City flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Los Angeles to London City flights
Hobby to Heathrow flights
Baltimore to Gatwick flights
Dulles Intl to London City flights
Los Angeles to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Boston to Stansted flights
Orlando to Gatwick flights
Reagan-National to Gatwick flights
O'Hare Intl to London City flights
San Francisco to London City flights
Minneapolis to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Seattle to Gatwick flights
Boston to Luton flights
Tampa to Heathrow flights
Raleigh to Heathrow flights
Miami 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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£395Average£588FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£424Average£537FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£459Average£538FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£490Average£770FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£506Average£644FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.