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>

£126 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 26% 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

£373

Overall average: £486

Aer Lingus

Wed 7/1Mon 11/5

EWR - LHR • 1 stop

Cheapest direct flights

£373

Typical prices: £434-£531

British Airways

Wed 25/2Sun 1/3

EWR - 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

Wed, 7 Jan - Mon, 11 May

17:45 - 10:10EWR-LHR

11h 25m1 stop

09:50 - 15:50LHR-EWR

11h 00m1 stop

£373Aer Lingus

Find Deal

Wed, 14 Jan - Sun, 18 Jan

19:35 - 10:55EWR-LGW

10h 20m1 stop

11:55 - 18:25LGW-EWR

11h 30m1 stop

£373Icelandair

Find Deal

Tue, 24 Feb - Sun, 1 Mar

21:35 - 09:30EWR-LHR

6h 55mdirect

10:40 - 13:50LHR-EWR

8h 10mdirect

£374British Airways

Find Deal

Wed, 31 Dec - Sun, 1 Feb

22:40 - 11:05EWR-LHR

7h 25mdirect

12:05 - 20:30LHR-EWR

13h 25m1 stop

£375United Airlines

Find Deal

Thu, 15 Jan - Mon, 19 Jan

23:55 - 20:40EWR-LGW

15h 45m2 stops

11:00 - 22:05LGW-EWR

16h 05m1 stop

£375TAP AIR PORTUGAL

Find Deal

Tue, 13 Jan - Tue, 20 Jan

17:40 - 09:50EWR-LGW

11h 10m1 stop

10:40 - 22:05LGW-EWR

16h 25m2 stops

£376TAP AIR PORTUGAL

Find Deal

Tue, 30 Dec - Sun, 11 Jan

13:00 - 20:35EWR-LHR

26h 35m1 stop

18:40 - 13:55LHR-EWR

24h 15m1 stop

£376Multiple Airlines

Find Deal

Wed, 31 Dec - Sat, 17 Jan

15:30 - 07:10EWR-LHR

10h 40m1 stop

12:05 - 20:30LHR-EWR

13h 25m1 stop

£377United Airlines

Find Deal

Sun, 11 Jan - Thu, 15 Jan

23:55 - 15:45EWR-LGW

10h 50m1 stop

14:00 - 23:27LGW-EWR

14h 27m1 stop

£377Multiple Airlines

Find Deal

Tue, 17 Mar - Tue, 31 Mar

19:35 - 06:30EWR-LHR

6h 55mdirect

09:15 - 16:32LHR-EWR

12h 17m1 stop

£379British Airways

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	£126

Best time to beat the crowds (15% less expensive on average)

Most popular time to fly (24% more expensive on average)

Flight from New York John F Kennedy Airport to London Heathrow Airport

Verified travelerFlew with American AirlinesPIT-LHRJun 2025

Make sure you do not need the transit visa.

LisaFlew with British AirwaysPHL-LHRMay 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 AirlinesPHL-LHRMay 2025

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

Verified travelerFlew with British AirwaysPHL-LHROct 2024

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

GlennFlew with British AirwaysPHL-LHRJun 2024

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

Verified travelerFlew with British AirwaysPIT-LHRMar 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 £4,514

Prem Econ Class flights to Londonfrom £2,063

Economy class flights to Londonfrom £331

£129 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