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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

£133 CHEAP FLIGHTS from Pennsylvania to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

...and more

Travellers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest return fare

£353

Overall average: £430

British Airways

Sun 25/1Thu 5/2

JFK - LHR • Direct

Cheapest direct flights

£353

Typical prices: £397-£515

Virgin Atlantic

Sun 25/1Tue 3/2

JFK - LHR • Direct

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to London!

Flight Deals

Cheap Flights from Pennsylvania to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Pennsylvania to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Last minute

Direct

Recent return flight deals from Pennsylvania to London

Sun, 25 Jan - Thu, 5 Feb

21:50 - 09:40

JFK

LHR

6h 50mdirect

11:25 - 19:15

LHR

JFK

12h 50m

1 stop

£353British Airways

Mon, 2 Feb - Mon, 9 Feb

16:50 - 08:30

JFK

LHR

10h 40m

1 stop

19:25 - 14:15

LHR

JFK

23h 50m

1 stop

£354Multiple Airlines

Wed, 11 Feb - Wed, 11 Mar

15:20 - 07:10

LGA

LHR

10h 50m

1 stop

13:25 - 21:33

LHR

LGA

12h 08m

1 stop

£355Air Canada

Wed, 25 Feb - Fri, 6 Mar

09:35 - 21:40

JFK

LHR

7h 05mdirect

08:05 - 11:29

LHR

JFK

8h 24mdirect

£355JetBlue

Wed, 18 Feb - Tue, 24 Feb

21:00 - 17:50

JFK

LGW

15h 50m

1 stop

18:40 - 16:40

LGW

JFK

27h 00m

1 stop

£355SWISS

Fri, 10 Apr - Tue, 14 Apr

23:25 - 18:05

JFK

LTN

13h 40m

1 stop

12:45 - 21:40

LTN

JFK

13h 55m

1 stop

£355Multiple Airlines

Wed, 4 Feb - Mon, 9 Feb

17:00 - 16:00

JFK

STN

18h 00m

2 stops

06:55 - 22:00

STN

JFK

20h 05m

1 stop

£355Multiple Airlines

Mon, 26 Jan - Mon, 2 Feb

21:00 - 17:50

JFK

LGW

15h 50m

1 stop

18:40 - 13:05

LGW

JFK

23h 25m

1 stop

£356SWISS

Wed, 22 Apr - Tue, 28 Apr

18:25 - 09:05

JFK

LHR

9h 40m

1 stop

09:50 - 16:55

LHR

JFK

12h 05m

1 stop

£356American Airlines

Fri, 13 Feb - Fri, 20 Feb

16:20 - 08:30

LGA

LHR

11h 10m

1 stop

15:00 - 21:33

LHR

LGA

11h 33m

1 stop

£361Air Canada

Useful Info

Low season	January
High season	July

Best time to beat the crowds (17% less expensive on average)

Most popular time to fly (30% more expensive on average)

Verified travelerFlew with American Airlines

PIT

LHR

Jun 2025

Make sure you do not need the transit visa.

LisaFlew with British Airways

PHL

LHR

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

PHL

LHR

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

PHL

LHR

Oct 2024

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

GlennFlew with British Airways

PHL

LHR

Jun 2024

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

Verified travelerFlew with British Airways

PIT

LHR

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

Milton Keynes

Eastbourne

Hounslow

Luton

Southend-on-Sea

Slough

Winchester

Croydon

Stansted

Folkestone

Chichester

Maidstone

Colchester

Chelmsford

Crawley

Richmond

Bedford

Watford

Hastings

Everything you need to know for your flight to London

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Pennsylvania

First Class flights to London

Business Class flights to Londonfrom £4,446

Prem Econ Class flights to Londonfrom £2,032

Economy class flights to Londonfrom £456

£133 Find Cheap Flights from Pennsylvania to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Everything you should know

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

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

FAQs for booking flights from Pennsylvania to London

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.

Travelling to a place near London?

Everything you need to know for your flight to London

Cabin class types available on flights to Pennsylvania

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

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight