How does KAYAK find such low prices on flights from Pennsylvania to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pennsylvania to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Pennsylvania to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Pennsylvania with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

£153 CHEAP FLIGHTS from Pennsylvania to London

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Cheap Flights from Pennsylvania to London

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Direct

Recent return flight deals from Pennsylvania to London

Tue, 24 Nov - Sun, 6 Dec

16:25 - 20:40JFK New York John F Kennedy Intl-LGW London Gatwick

23h 15m2 stops Zurich Dublin

08:25 - 13:15LGW London Gatwick-JFK New York John F Kennedy Intl

33h 50m2 stops Dublin Zurich

£378Multiple Airlines

Tue, 24 Nov - Sun, 6 Dec

16:25 - 21:50JFK New York John F Kennedy Intl-STN London Stansted

24h 25m2 stops Zurich Dublin

08:30 - 13:15STN London Stansted-JFK New York John F Kennedy Intl

33h 45m2 stops Dublin Zurich

£378Multiple Airlines

Tue, 2 Feb - Sun, 7 Feb

19:25 - 10:55JFK New York John F Kennedy Intl-LGW London Gatwick

10h 30m1 stop Reykjavik Keflavik Intl

11:55 - 18:00LGW London Gatwick-JFK New York John F Kennedy Intl

11h 05m1 stop Reykjavik Keflavik Intl

£443Icelandair

Thu, 4 Feb - Tue, 9 Feb

19:25 - 10:50JFK New York John F Kennedy Intl-LHR London Heathrow

10h 25m1 stop Reykjavik Keflavik Intl

12:15 - 18:00LHR London Heathrow-JFK New York John F Kennedy Intl

10h 45m1 stop Reykjavik Keflavik Intl

£443Icelandair

Wed, 14 Oct - Wed, 21 Oct

21:05 - 13:30JFK New York John F Kennedy Intl-LHR London Heathrow

11h 25m1 stop Dublin

15:50 - 22:25LHR London Heathrow-JFK New York John F Kennedy Intl

11h 35m1 stop Dublin

£443Aer Lingus

Wed, 11 Nov - Mon, 16 Nov

21:15 - 15:35JFK New York John F Kennedy Intl-LHR London Heathrow

13h 20m1 stop Dublin

12:10 - 19:29LHR London Heathrow-JFK New York John F Kennedy Intl

12h 19m1 stop Dublin

£444Aer Lingus

Mon, 23 Nov - Tue, 1 Dec

18:05 - 06:00JFK New York John F Kennedy Intl-LGW London Gatwick

6h 55mdirect

12:50 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

8h 05mdirect

£444Norse Atlantic UK

Sat, 28 Nov - Fri, 4 Dec

18:05 - 05:50JFK New York John F Kennedy Intl-LGW London Gatwick

6h 45mdirect

12:55 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

8h 00mdirect

£444Norse Atlantic UK

Tue, 23 Feb - Tue, 2 Mar

21:00 - 14:55JFK New York John F Kennedy Intl-LHR London Heathrow

12h 55m1 stop Madrid Barajas

10:45 - 19:15LHR London Heathrow-JFK New York John F Kennedy Intl

13h 30m1 stop Madrid Barajas

£444Iberia

Sun, 11 Oct - Tue, 20 Oct

16:55 - 09:30JFK New York John F Kennedy Intl-LHR London Heathrow

11h 35m1 stop Madrid Barajas

10:50 - 18:55LHR London Heathrow-JFK New York John F Kennedy Intl

13h 05m1 stop Madrid Barajas

£444Iberia

Recent last minute flight deals from Pennsylvania to London

Fri, 18 Sep - Sun, 20 Sep

23:55 - 18:20JFK New York John F Kennedy Intl-LGW London Gatwick

13h 25m1 stop Dublin

08:55 - 22:25LGW London Gatwick-JFK New York John F Kennedy Intl

18h 30m1 stop Dublin

£445Multiple Airlines

Fri, 18 Sep - Mon, 21 Sep

16:15 - 18:20JFK New York John F Kennedy Intl-LGW London Gatwick

21h 05m2 stops Zurich Dublin

21:30 - 20:05LGW London Gatwick-JFK New York John F Kennedy Intl

27h 35m2 stops Dublin Frankfurt am Main

£448Multiple Airlines

Sat, 19 Sep - Fri, 25 Sep

18:20 - 06:20JFK New York John F Kennedy Intl-LGW London Gatwick

7h 00mdirect

13:05 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

7h 50mdirect

£452Norse Atlantic UK

Sat, 19 Sep - Fri, 25 Sep

18:20 - 06:20JFK New York John F Kennedy Intl-LGW London Gatwick

7h 00mdirect

13:05 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

7h 50mdirect

£453Norse Atlantic UK

Wed, 16 Sep - Wed, 23 Sep

09:35 - 21:40JFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mdirect

07:50 - 14:55LHR London Heathrow-JFK New York John F Kennedy Intl

12h 05m1 stop Madrid Barajas

£472Iberia

Fri, 18 Sep - Fri, 25 Sep

18:30 - 06:45JFK New York John F Kennedy Intl-LHR London Heathrow

7h 15mdirect

15:50 - 18:45LHR London Heathrow-JFK New York John F Kennedy Intl

7h 55mdirect

£473Virgin Atlantic

Sat, 19 Sep - Fri, 25 Sep

08:15 - 20:10JFK New York John F Kennedy Intl-LHR London Heathrow

6h 55mdirect

11:45 - 17:05LHR London Heathrow-JFK New York John F Kennedy Intl

10h 20m1 stop Amsterdam Schiphol

£473Virgin Atlantic

Wed, 16 Sep - Wed, 23 Sep

09:35 - 21:40JFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mdirect

10:50 - 18:55LHR London Heathrow-JFK New York John F Kennedy Intl

13h 05m1 stop Madrid Barajas

£475British Airways

Wed, 16 Sep - Tue, 22 Sep

19:15 - 07:20JFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mdirect

09:15 - 18:55LHR London Heathrow-JFK New York John F Kennedy Intl

14h 40m1 stop Madrid Barajas

£475British Airways

Wed, 16 Sep - Wed, 23 Sep

16:55 - 11:55JFK New York John F Kennedy Intl-LHR London Heathrow

14h 00m1 stop Madrid Barajas

11:30 - 18:55LHR London Heathrow-JFK New York John F Kennedy Intl

12h 25m1 stop Madrid Barajas

£479Iberia

Recent direct flight deals from Pennsylvania to London

Mon, 23 Nov - Tue, 1 Dec

18:05 - 06:00JFK New York John F Kennedy Intl-LGW London Gatwick

6h 55mdirect

12:50 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

8h 05mdirect

£444Norse Atlantic UK

Sat, 28 Nov - Fri, 4 Dec

18:05 - 05:50JFK New York John F Kennedy Intl-LGW London Gatwick

6h 45mdirect

12:55 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

8h 00mdirect

£444Norse Atlantic UK

Wed, 18 Nov - Mon, 23 Nov

20:05 - 08:10JFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mdirect

11:20 - 14:25LHR London Heathrow-JFK New York John F Kennedy Intl

8h 05mdirect

£445British Airways

Thu, 8 Oct - Sun, 11 Oct

07:50 - 19:45JFK New York John F Kennedy Intl-LHR London Heathrow

6h 55mdirect

11:35 - 14:25LHR London Heathrow-JFK New York John F Kennedy Intl

7h 50mdirect

£446British Airways

Wed, 13 Jan - Tue, 19 Jan

18:05 - 05:55JFK New York John F Kennedy Intl-LGW London Gatwick

6h 50mdirect

12:50 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

8h 05mdirect

£449Hahn Air

Wed, 2 Dec - Sun, 6 Dec

18:05 - 05:55JFK New York John F Kennedy Intl-LGW London Gatwick

6h 50mdirect

13:00 - 15:55LGW London Gatwick-JFK New York John F Kennedy Intl

7h 55mdirect

£449Hahn Air

Sun, 13 Dec - Wed, 23 Dec

18:00 - 06:20JFK New York John F Kennedy Intl-LHR London Heathrow

7h 20mdirect

20:10 - 23:30LHR London Heathrow-JFK New York John F Kennedy Intl

8h 20mdirect

£455Virgin Atlantic

Thu, 15 Oct - Thu, 29 Oct

20:15 - 08:50JFK New York John F Kennedy Intl-LHR London Heathrow

7h 35mdirect

15:50 - 20:10LHR London Heathrow-JFK New York John F Kennedy Intl

8h 20mdirect

£468Virgin Atlantic

Mon, 19 Oct - Tue, 3 Nov

19:15 - 07:20JFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mdirect

10:15 - 13:10LHR London Heathrow-JFK New York John F Kennedy Intl

7h 55mdirect

£473Finnair

Mon, 12 Oct - Wed, 4 Nov

09:35 - 21:40JFK New York John F Kennedy Intl-LHR London Heathrow

7h 05mdirect

15:35 - 18:40LHR London Heathrow-JFK New York John F Kennedy Intl

8h 05mdirect

£478Finnair

Useful Info

Low season	February
High season	March
Cheapest flight	£153

Best time to beat the crowds (14% less expensive on average)

Most popular time to fly and prices are also 23% lower on average.

Flight from New York LaGuardia Airport to London Heathrow Airport

Verified travelerFlew with American Airlines-Jun 2025

Make sure you do not need the transit visa.

LisaFlew with British Airways-May 2025

Make sure you have enough time in London if you have a transfer flight. I would recommend at least 2 hours.

RadicalFlew with American Airlines-May 2025

Don’t put everything in your gate check bags. Make sure you have clothes in your carry on

Verified travelerFlew with British Airways-Oct 2024

Eat well before boarding if you’re a picky eater.

GlennFlew with British Airways-Jun 2024

British airways could have many delays, ensure there's enough time for the layover

Verified travelerFlew with British Airways-Mar 2024

Go British Air. The nonstop flight is a huge bonus as there are very few such flights to Europe from Pittsburgh. Study the Underground and use it for transportation while there. After you’ve seen the most famous London sights, visit one of the smaller museums, like the John Soames Museum or the Leighton House Museum. Have a drink at the bar on the top floor of the National Portrait Gallery.

How does KAYAK find such low prices on flights from Pennsylvania to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pennsylvania to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Pennsylvania to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Pennsylvania with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Gatwick

Eastbourne

Milton Keynes

Hounslow

Luton

Southend-on-Sea

Newport

Folkestone

Winchester

Slough

Croydon

Stansted

Colchester

Chichester

Crawley

Maidstone

Chelmsford

Hastings

Bedford

Richmond

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£153 Find Cheap Flights from Pennsylvania to London – Compare and Save

Cheap Flights from Pennsylvania to London

Recent return flight deals from Pennsylvania to London

Recent one-way flight deals from Pennsylvania to London

Recent last minute flight deals from Pennsylvania to London

Recent direct flight deals from Pennsylvania to London

Good to know - Cheap tickets from Pennsylvania to London

Low season

High season

Cheapest flight

Flights from Pennsylvania to London: the best tips from KAYAK users

FAQs for booking flights from Pennsylvania to London

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More options for your flight to London

Complete your trip to London with a hotel stay or car hire

Cabin class types available on flights to Pennsylvania

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