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Cheap flights from Pennsylvania to London from £122

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pennsylvania to London

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

Round-trip from

£373

One-way from

£122

Popular in

June

Cheapest in

September

Average price

£719

Good round-trip deal

£405 or less

Good one-way deal

£661 or less
Aer Lingus
  • Aer Lingus
  • 7/1-11/5
  • 2 total stops
  • 22h 25m total
  • Pennsylvania to London
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Virgin Atlantic
  • Virgin Atlantic
  • 6/12
  • Nonstop
  • 7h 20m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£106 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Pennsylvania to London (LON).
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Price to beat on a one-way flight from Pennsylvania to London (LON).
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Find flight deals from Pennsylvania to London

Enter your travel dates to find the best prices.

Cheapest flights from Pennsylvania to London
Explore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 December 2025.

Mon 1/1222:00EWR - LHR
1 stop13h 20mSWISS
Fri 5/1209:00LHR - EWR
1 stop16h 30mSWISS
Deal found 1/12£373
Tue 2/1213:00EWR - LHR
1 stop26h 35mAir Canada
Sat 6/1209:00LHR - EWR
1 stop32h 18mAir Canada
Deal found 1/12£374
Tue 2/1223:55EWR - LGW
2 stops28h 30mTAP AIR PORTUGAL
Tue 9/1210:40LGW - EWR
1 stop16h 30mTAP AIR PORTUGAL
Deal found 1/12£374
Tue 2/1220:50EWR - LHR
1 stop18h 45mUnited Airlines
Wed 10/1209:00LHR - EWR
1 stop16h 30mUnited Airlines
Deal found 30/11£375
Sun 30/1100:20EWR - LGW
1 stop15h 15mTAP AIR PORTUGAL
Mon 2/321:25LGW - EWR
2 stops23h 05mTAP AIR PORTUGAL
Deal found 28/11£375
Sun 7/1215:30EWR - LHR
1 stop10h 40mMultiple Airlines
Fri 12/1220:05LHR - EWR
1 stop22h 50mMultiple Airlines
Deal found 29/11£376
Sat 6/1215:30EWR - LHR
1 stop10h 40mMultiple Airlines
Sat 13/1213:25LHR - EWR
1 stop12h 12mMultiple Airlines
Deal found 29/11£376
Mon 1/1222:00EWR - LGW
1 stop14h 50mSWISS
Fri 5/1218:40LGW - EWR
2 stops24h 10mSWISS
Deal found 1/12£376
Thu 4/1220:50EWR - LHR
1 stop18h 45mUnited Airlines
Thu 11/1206:35LHR - EWR
1 stop17h 30mUnited Airlines
Deal found 30/11£377
Mon 1/1219:25EWR - LHR
1 stop10h 25mUnited Airlines
Wed 10/1209:00LHR - EWR
1 stop16h 30mUnited Airlines
Deal found 1/12£378
Mon 1/1221:34EWR - LHR
1 stop28h 06mUnited Airlines
Mon 8/1213:25LHR - EWR
1 stop30h 27mUnited Airlines
Deal found 30/11£379
Tue 2/1217:20EWR - LHR
1 stop10h 10mMultiple Airlines
Sat 6/1212:05LHR - EWR
1 stop13h 25mMultiple Airlines
Deal found 1/12£379

Cheapflights Fare Finder

 
Customise your flight search to find flights from Pennsylvania to London 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 December 2025.
Use the filters below to find and compare flights from Pennsylvania to London that are best for you.

Fly from

Pennsylvania

Fly to

London

Route

Depart

Return

Price

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 15/4

21:25-09:30

Nonstop7h 05m

London Heathrow

Thu 23/4

16:35-19:25

Nonstop7h 50m

£382

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 29/4

18:30-06:30

Nonstop7h 00m

London Heathrow

Tue 5/5

14:40-17:35

Nonstop7h 55m

£382

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 10/1

19:45-07:10

1 stop30h 25m

London Heathrow

Fri 16/1

13:25-18:44

2 stops34h 19m

£383

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 30/1

06:00-10:50

1 stop23h 50m

London Heathrow

Tue 3/2

13:25-09:42

1 stop25h 17m

£383

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 22/1

20:45-09:10

Nonstop7h 25m

London Heathrow

Sun 25/1

11:10-19:05

1 stop12h 55m

£384

New YorkLondon

LGA - LGW

LGALGW

New York LaGuardia

Thu 15/1

19:59-10:00

1 stop33h 01m

London Gatwick

Thu 22/1

14:00-17:58

1 stop32h 58m

£386

NewarkLondon

EWR - LGW

EWRLGW

Newark

Mon 12/1

19:35-10:55

1 stop10h 20m

London Gatwick

Wed 28/1

11:55-18:25

1 stop11h 30m

£389

NewarkLondon

EWR - LGW

EWRLGW

Newark

Wed 14/1

19:35-10:55

1 stop10h 20m

London Gatwick

Wed 28/1

11:55-18:25

1 stop11h 30m

£389

NewarkLondon

EWR - LGW

EWRLGW

Newark

Sun 11/1

19:35-10:55

1 stop10h 20m

London Gatwick

Sun 25/1

11:55-18:25

1 stop11h 30m

£389

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 28/2

13:59-06:50

1 stop11h 51m

London Heathrow

Wed 4/3

10:00-15:45

1 stop10h 45m

£392

Flights are sorted by cheapest return flights first.

Deals found on 30/11

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

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, July is the cheapest month in which you can book a flight from Pennsylvania to London (average of £103). Flying from Pennsylvania to London in May is currently the most expensive (average of £482). 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 LON?

Find hourly flight availability from Pennsylvania to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 December 2025.

It’s typically best to fly out from Pennsylvania to London in the afternoon. Doing so could potentially save you 25% on the flight price compared to flying at midday, which is usually more expensive.

Weekly flight availability from Pennsylvania to London

Explore weekly flight availability from Pennsylvania to London. 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 December 2025.

The most flights from USPA to LON are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to London. 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?

    British Airways, United Airlines, and Icelandair can get you from Pennsylvania to London in just under 7h 05m. Your travel time can differ by up to 23h 20m. There are 3454 mi between Pennsylvania and London. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Pennsylvania to London 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 Delta from £135 and Virgin Atlantic from £135 one-way.

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

    When deciding which route to take from Pennsylvania to London consider New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or New York John F Kennedy Intl - London Gatwick as they are the most popular.

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

    The top 3 most reliable airlines when flying from Pennsylvania to London are Malaysia Airlines (84%), American Airlines (83%) and Iberia (83%).

  • What are the cheapest flights from Pennsylvania to London?

    Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £1,129, our data indicates the cheapest price to be £330. The most popular route (New York John F Kennedy Intl - London Heathrow), is priced around £302.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to London 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?

    Currently, July is the cheapest month in which you can book a flight from Pennsylvania to London (average of £103). Flying from Pennsylvania to London in May is currently the most expensive (average of £482). 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?

Book flights to London if you plan to visit one of these locations
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Alternative routes for Pennsylvania to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Pennsylvania to London

Discover the top 5 airlines that operate flights from Pennsylvania to London. 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 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£390Average£567FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£397Average£701FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£433Average£527FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£468Average£531FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£517Average£674FlexibilityNo 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 London?

Cheapflights makes it easy to find Pennsylvania to London 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 London?

Cheapflights helps you find that perfect flight to London from Pennsylvania by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Pennsylvania today and book when prices fit your budget.

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