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Cheap flights from Pennsylvania to London Heathrow Airport from £180

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
2 May — 9 May1
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 2 April 2026.

Mon 20/422:05
JFK
-
LHR
1 stop18h 55m
TAP AIR PORTUGAL
Wed 20/508:00
LHR
-
JFK
1 stop17h 05m
TAP AIR PORTUGAL
Deal found 31/3£388
Thu 16/422:05
JFK
-
LHR
1 stop19h 00m
TAP AIR PORTUGAL
Wed 17/608:00
LHR
-
JFK
1 stop17h 05m
TAP AIR PORTUGAL
Deal found 28/3£390
Fri 17/417:45
EWR
-
LHR
1 stop15h 50m
Scandinavian Airlines
Sun 19/406:40
LHR
-
EWR
1 stop11h 35m
Scandinavian Airlines
Deal found 28/3£391
Fri 24/417:20
EWR
-
LHR
2 stops16h 15m
Scandinavian Airlines
Sun 26/406:40
LHR
-
EWR
1 stop11h 35m
Scandinavian Airlines
Deal found 29/3£392
Mon 20/422:05
JFK
-
LHR
1 stop15h 45m
TAP AIR PORTUGAL
Mon 18/511:20
LHR
-
JFK
1 stop13h 45m
TAP AIR PORTUGAL
Deal found 1/4£394
Sat 2/517:45
EWR
-
LHR
1 stop15h 50m
Scandinavian Airlines
Mon 4/506:40
LHR
-
EWR
1 stop11h 35m
Scandinavian Airlines
Deal found 28/3£395
Sun 26/423:00
EWR
-
LHR
1 stop18h 55m
TAP AIR PORTUGAL
Tue 5/508:00
LHR
-
EWR
1 stop12h 30m
TAP AIR PORTUGAL
Deal found 28/3£397
Thu 16/422:05
JFK
-
LHR
1 stop19h 50m
TAP AIR PORTUGAL
Thu 7/508:00
LHR
-
JFK
1 stop17h 05m
TAP AIR PORTUGAL
Deal found 31/3£397
Sun 26/423:00
EWR
-
LHR
1 stop18h 55m
TAP AIR PORTUGAL
Sun 3/508:00
LHR
-
EWR
1 stop18h 00m
TAP AIR PORTUGAL
Deal found 28/3£397
Sun 19/422:05
JFK
-
LHR
1 stop19h 50m
TAP AIR PORTUGAL
Thu 14/506:00
LHR
-
JFK
1 stop19h 05m
TAP AIR PORTUGAL
Deal found 31/3£397
Thu 16/422:05
JFK
-
LHR
1 stop19h 00m
TAP AIR PORTUGAL
Sat 2/519:50
LHR
-
JFK
1 stop29h 15m
TAP AIR PORTUGAL
Deal found 30/3£399
Thu 16/422:05
JFK
-
LHR
1 stop19h 00m
TAP AIR PORTUGAL
Thu 4/606:00
LHR
-
JFK
1 stop19h 05m
TAP AIR PORTUGAL
Deal found 29/3£400

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 2 April 2026.

Round-trip from

£388

One-way from

£180

Popular in

June

Cheapest in

September

Average price

£587

Good round-trip deal

£649 or less

Good one-way deal

£356 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 20/4-20/5
  • 2 total stops
  • 36h 00m total
  • Pennsylvania to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 21/9
  • 1 total stop
  • 14h 40m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£94 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 2 April 2026.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 22/4

22:05-17:45

1 stop14h 40m

London Heathrow

Wed 29/4

18:45-20:05

1 stop30h 20m

£499

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 14/4

17:20-16:00

2 stops17h 40m

London Heathrow

Sun 19/4

06:40-13:15

1 stop11h 35m

£509

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Mon 20/4

18:19-11:20

1 stop12h 01m

London Heathrow

Fri 1/5

06:30-23:03

2 stops21h 33m

£546

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 15/4

06:00-07:10

1 stop20h 10m

London Heathrow

Wed 6/5

06:30-23:59

2 stops22h 29m

£546

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Tue 5/5

12:00-13:15

1 stop20h 15m

London Heathrow

Wed 20/5

06:30-22:50

2 stops21h 20m

£546

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 26/4

12:53-06:25

1 stop12h 32m

London Heathrow

Sat 2/5

08:55-23:00

2 stops19h 05m

£547

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 12/8

07:50-19:45

Nonstop6h 55m

London Heathrow

Wed 16/9

10:20-19:10

1 stop13h 50m

£548

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 25/4

18:20-06:25

Nonstop7h 05m

London Heathrow

Thu 7/5

10:20-19:10

1 stop13h 50m

£548

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 2/5

19:20-07:20

Nonstop7h 00m

London Heathrow

Sun 10/5

10:20-19:10

1 stop13h 50m

£549

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Tue 8/9

17:00-12:05

2 stops14h 05m

London Heathrow

Wed 23/9

09:55-23:40

2 stops18h 45m

£549

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £363). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £658). 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 April 2026.

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 2 April 2026.

The most flights from USPA to LHR are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 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 12h 01m. Fly via TAP AIR PORTUGAL, Scandinavian Airlines, or Delta to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3581 mi. This flight may include one or multiple stops.

  • 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 Aer Lingus (80%), American Airlines (78%) and Finnair (78%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £207. On average you can expect to pay £590. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £409.

  • 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 £363). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £658). 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
Wembley
Croydon
Northampton
Hounslow
Gatwick
Slough
Ilford
Luton
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Bedford
Chelmsford

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
John F Kennedy Intl to Stansted flights
LaGuardia to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
LaGuardia to Gatwick flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Gatwick flights
Dulles Intl to Heathrow flights
Newark to Stansted flights
Newark to Luton flights
Newark to London City flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
Seattle to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Boston to Gatwick flights
Orlando to Heathrow flights
Atlanta to Heathrow flights
LaGuardia to Stansted flights
Hobby to Heathrow flights
Boston to London City flights
Miami to Heathrow flights
Boston to Stansted flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Denver to Heathrow flights
Los Angeles to Stansted flights
Los Angeles to Gatwick flights
Dulles Intl to London City flights
Los Angeles to London City flights
George Bush Intcntl to Heathrow flights
Philadelphia to Heathrow flights
Tampa to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to Gatwick flights
Minneapolis to Heathrow flights
Baltimore to Gatwick flights
San Francisco to Gatwick flights
Orlando to Gatwick flights
O'Hare Intl to Stansted flights
O'Hare Intl to London City flights
Seattle to Gatwick flights

Top 4 airlines flying from Pennsylvania to Heathrow

Discover the top 4 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 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£388Average£607FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£395Average£524FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£514Average£670FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,041Average£1,148FlexibilityNo 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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