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>

$235 CHEAP FLIGHTS from Pennsylvania to London Heathrow (LHR)

LHR

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Cheap Flights from Pennsylvania to Heathrow

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

Mon, May 4 - Mon, May 18

10:05 pm - 10:00 pm

JFK

LHR

18h 55m

1 stop

11:20 am - 8:05 pm

LHR

JFK

13h 45m

1 stop

$488TAP AIR PORTUGAL

Mon, May 4 - Wed, May 20

10:05 pm - 10:00 pm

JFK

LHR

18h 55m

1 stop

6:00 am - 8:05 pm

LHR

JFK

19h 05m

1 stop

$489TAP AIR PORTUGAL

Sun, Apr 19 - Wed, Apr 22

5:20 pm - 8:55 am

EWR

LHR

34h 35m

1 stop

7:05 am - 1:15 pm

LHR

EWR

11h 10m

1 stop

$507Scandinavian Airlines

Sun, Apr 26 - Wed, Apr 29

5:20 pm - 8:55 am

EWR

LHR

34h 35m

1 stop

7:05 am - 1:15 pm

LHR

EWR

11h 10m

1 stop

$508Scandinavian Airlines

Sat, May 2 - Sun, May 10

11:35 am - 6:35 am

LGA

LHR

14h 00m

1 stop

9:30 am - 4:58 pm

LHR

LGA

12h 28m

1 stop

$518Air Canada

Sun, May 3 - Sun, May 10

4:45 pm - 11:50 am

LGA

LHR

14h 05m

1 stop

9:30 am - 4:58 pm

LHR

LGA

12h 28m

1 stop

$541Air Canada

Sun, Sep 13 - Thu, Sep 24

8:25 pm - 11:55 am

PIT

LHR

10h 30m

1 stop

9:25 pm - 7:15 pm

LHR

PIT

26h 50m

1 stop

$781Icelandair

Fri, Sep 4 - Fri, Sep 11

8:25 pm - 11:55 am

PIT

LHR

10h 30m

1 stop

1:05 pm - 7:15 pm

LHR

PIT

11h 10m

1 stop

$783Icelandair

Tue, Aug 18 - Wed, Sep 2

7:59 pm - 3:40 pm

MDT

LHR

14h 41m

2 stops

10:50 am - 11:25 pm

LHR

MDT

17h 35m

2 stops

$797Lufthansa

Tue, Aug 18 - Wed, Sep 2

7:59 pm - 3:40 pm

MDT

LHR

14h 41m

2 stops

10:50 am - 11:25 pm

LHR

MDT

17h 35m

2 stops

$798Lufthansa

Useful Info

Low season	January
High season	July
Cheapest flight	$235

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Newark Liberty Airport to London Heathrow Airport

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 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.

Hounslow

Slough

Wembley

Hayes

Richmond

Luton

Salisbury

Crawley

Watford

Ilford

Eastbourne

Guildford

Bedford

Colchester

St. Albans

Swindon

Kingston upon Thames

Twickenham

Ipswich

Northampton

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London Heathrow Airport (LHR)

LHR

$226 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

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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

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