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Cheap flights from Pennsylvania to London from £101

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

Round-trip from

£347

One-way from

£101

Popular in

June

Cheapest in

September

Average price

£506

Good round-trip deal

£498 or less
15/11-22/11
  • 15/11-22/11
  • 5 total stops
  • 37h 34m total
  • Pennsylvania to London
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Norse Atlantic UK
  • Norse Atlantic UK
  • 23/10
  • Nonstop
  • 7h 00m total
  • Pennsylvania to London
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Highest demand for flights based on searches. 18% potential increase in price (£102 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip 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 17 October 2025.

Sat 15/1116:20LGA - LGW
2 stops13h 15mMultiple Airlines
Sat 22/1122:30LGW - LGA
2 stops22h 08mMultiple Airlines
Deal found 16/10£347
Thu 6/1121:00JFK - LTN
2 stops18h 30mMultiple Airlines
Mon 10/1106:00LTN - JFK
2 stops15h 09mMultiple Airlines
Deal found 15/10£347
Fri 17/1018:25JFK - LHR
1 stop9h 40mAer Lingus
Thu 27/1112:10LHR - JFK
1 stop12h 15mAer Lingus
Deal found 16/10£347
Wed 12/1117:00JFK - STN
1 stop9h 50mMultiple Airlines
Wed 19/1108:30STN - JFK
1 stop15h 55mMultiple Airlines
Deal found 15/10£347
Wed 5/1118:05JFK - LGW
Nonstop6h 55mNorse Atlantic UK
Wed 19/1113:00LGW - JFK
Nonstop7h 55mNorse Atlantic UK
Deal found 15/10£347
Wed 5/1110:05JFK - LTN
2 stops28h 20mMultiple Airlines
Tue 18/1120:50LTN - JFK
2 stops21h 15mMultiple Airlines
Deal found 15/10£348
Wed 5/1118:10JFK - LHR
1 stop22h 30mAustrian Airlines
Wed 12/1114:50LHR - JFK
1 stop28h 25mAustrian Airlines
Deal found 15/10£348
Sat 6/1209:45JFK - STN
2 stops19h 05mMultiple Airlines
Fri 12/1215:15STN - JFK
2 stops26h 50mMultiple Airlines
Deal found 15/10£348
Mon 10/1110:05JFK - LGW
2 stops22h 45mMultiple Airlines
Wed 19/1116:00LGW - JFK
2 stops26h 05mMultiple Airlines
Deal found 14/10£348
Fri 5/1216:20LGA - LGW
2 stops13h 00mMultiple Airlines
Tue 9/1221:40LGW - LGA
2 stops22h 58mMultiple Airlines
Deal found 15/10£348
Fri 7/1121:10JFK - LTN
1 stop13h 15mMultiple Airlines
Wed 12/1106:50LTN - JFK
1 stop17h 35mMultiple Airlines
Deal found 16/10£348
Tue 2/1222:00JFK - LHR
1 stop14h 30mTAP AIR PORTUGAL
Wed 14/108:15LHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Deal found 15/10£348

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 17 October 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

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 29/1

23:45-21:00

1 stop16h 15m

London Gatwick

Mon 2/2

12:50-22:00

1 stop14h 10m

£349

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 3/12

18:05-06:00

Nonstop6h 55m

London Gatwick

Wed 10/12

13:00-15:55

Nonstop7h 55m

£354

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 11/12

00:30-22:30

1 stop17h 00m

London Gatwick

Sun 14/12

07:25-22:30

1 stop20h 05m

£354

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 15/1

23:45-09:10

1 stop28h 25m

London Heathrow

Mon 19/1

18:50-22:00

1 stop32h 10m

£356

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Sat 15/11

10:05-09:50

3 stops18h 45m

London Stansted

Sat 22/11

21:45-16:09

2 stops23h 24m

£357

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Sat 29/11

17:00-07:50

1 stop9h 50m

London Stansted

Fri 5/12

06:30-19:25

1 stop17h 55m

£357

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 12/11

09:40-21:40

Nonstop7h 00m

London Heathrow

Sun 16/11

07:45-11:00

Nonstop8h 15m

£375

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 10/11

08:45-20:45

Nonstop7h 00m

London Heathrow

Thu 26/2

12:20-15:51

Nonstop8h 31m

£375

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 20/1

09:35-21:40

Nonstop7h 05m

London Heathrow

Fri 30/1

08:05-11:29

Nonstop8h 24m

£375

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 14/11

08:45-20:45

Nonstop7h 00m

London Heathrow

Fri 21/11

08:05-11:09

Nonstop8h 04m

£376

Flights are sorted by cheapest return flights first.

Deals found on 16/10

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, August is the cheapest month in which you can book a flight from Pennsylvania to London (average of £360). Flying from Pennsylvania to London in June is currently the most expensive (average of £650). 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 17 October 2025.

It’s typically best to fly out from Pennsylvania to London in the afternoon. Doing so could potentially save you 24% 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 17 October 2025.

The most flights from USPA to LON 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).

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?

    Norse Atlantic UK, LEVEL, and JetBlue can get you from Pennsylvania to London in just under 6h 55m. Your travel time can differ by up to 21h 30m. There are 3458 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 £115 on Norse Atlantic UK. Other airlines that offer cheap prices include JetBlue from £130 and TAP AIR PORTUGAL from £169 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 Aer Lingus (82%), Iberia (80%) and Finnair (79%).

  • What are the cheapest flights from Pennsylvania to London?

    Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £737, our data indicates the cheapest price to be £384. The most popular route (New York John F Kennedy Intl - London Heathrow), is priced around £285.

  • 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, August is the cheapest month in which you can book a flight from Pennsylvania to London (average of £360). Flying from Pennsylvania to London in June is currently the most expensive (average of £650). 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?

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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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John F Kennedy Intl to Edinburgh flights
Dallas/Fort Worth to Gatwick flights
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Tampa to Heathrow flights

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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£390Average£562FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£391Average£732FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£416Average£523FlexibilityNo cancel feeOn-time77%
Search Iberia flights
JetBlueCheapest£426Average£560FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£509Average£664FlexibilityNo 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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