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

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 Heathrow Airport. 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 Heathrow Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport 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 Heathrow Airport?

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 Heathrow Airport 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>

$136 CHEAP FLIGHTS from Pennsylvania to London Heathrow (LHR)

LHR

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Cheap Flights from Pennsylvania to Heathrow

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Pennsylvania to Heathrow 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 round-trip flight deals from Pennsylvania to Heathrow

Wed, Aug 27 - Fri, Dec 12

9:50 pm - 4:25 pmEWR-LHR

13h 35m1 stop

12:05 pm - 8:30 pmLHR-EWR

13h 25m1 stop

$265SWISS

Find Deal

Tue, Sep 2 - Wed, Sep 10

10:20 pm - 3:40 pmIAD-LHR

12h 20m1 stop

8:40 am - 4:15 pmLHR-IAD

12h 35m1 stop

$266

Find Deal

Sat, Sep 20 - Wed, Oct 1

3:30 pm - 6:30 amLGA-LHR

10h 00m1 stop

2:05 pm - 7:37 pmLHR-LGA

10h 32m1 stop

$267Lufthansa

Find Deal

Thu, Aug 14 - Thu, Aug 28

5:30 pm - 5:05 pmJFK-LHR

18h 35m2 stops

6:50 am - 1:00 pmLHR-JFK

11h 10m1 stop

$301Brussels Airlines

Find Deal

Wed, Aug 6 - Thu, Aug 14

6:10 pm - 10:15 amJFK-LHR

11h 05m1 stop

7:45 am - 1:00 pmLHR-JFK

10h 15m1 stop

$312Brussels Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

6:30 pm - 9:35 amEWR-LHR

34h 05m1 stop

6:40 am - 1:35 pmLHR-EWR

11h 55m1 stop

$317Scandinavian Airlines

Find Deal

Sat, Dec 6 - Mon, Dec 8

6:30 pm - 6:50 pmEWR-LHR

19h 20m1 stop

6:40 am - 1:35 pmLHR-EWR

11h 55m1 stop

$321Scandinavian Airlines

Find Deal

Tue, Oct 7 - Tue, Oct 21

10:50 pm - 6:50 pmEWR-LHR

15h 00m1 stop

8:00 am - 9:00 pmLHR-EWR

18h 00m1 stop

$374TAP AIR PORTUGAL

Find Deal

Wed, Sep 3 - Wed, Oct 1

10:05 pm - 10:55 pmJFK-LHR

19h 50m1 stop

6:00 am - 8:05 pmLHR-JFK

19h 05m1 stop

$374TAP AIR PORTUGAL

Find Deal

Wed, Sep 3 - Fri, Sep 12

3:30 pm - 6:30 amLGA-LHR

10h 00m1 stop

2:05 pm - 7:37 pmLHR-LGA

10h 32m1 stop

$507Lufthansa

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$136

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 22% increase in price.

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

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 Heathrow Airport?
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 Heathrow Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to London Heathrow Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport 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 Heathrow Airport?
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 Heathrow Airport from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Ilford

Deal

Southall

St. Albans

Folkestone

Chipping Campden

Barnet

Bishop's Stortford

Enfield

Ascot

Ely

Rye

Edgware

Weybridge

Woodstock

Alton

Dorking

Christchurch

Hatfield

Beaconsfield

Everything you need to know for your flight to Heathrow

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London Heathrow Airport (LHR)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

LHR

$136 Find Cheap Flights from Pennsylvania to London Heathrow Airport

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

Cheap Flights from Pennsylvania to Heathrow

Recent round-trip flight deals from Pennsylvania to Heathrow

Recent one-way flight deals from Pennsylvania to Heathrow

Recent last minute flight deals from Pennsylvania to Heathrow

Recent direct flight deals from Pennsylvania to Heathrow

Good to know

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

FAQs for booking Pennsylvania to London Heathrow Airport flights

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

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 Heathrow Airport.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport 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 Heathrow Airport?

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 Heathrow Airport from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Heathrow?

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

Cabin class types available on flights to Heathrow

Complete your trip to Heathrow with a hotel stay or car rental

Find direct flights for Heathrow

Flights to other popular destinations

Flights from domestic origins to Pennsylvania

Choose which airport to fly into in London