Cheap flights from Pennsylvania to London from £107

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to London departing on 7/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Multiple Airlines Logo
23:45 - 18:00JFK-LHR
13h 15m1 stop
Multiple Airlines Logo
09:55 - 22:00LHR-JFK
17h 05m1 stop
£336Multiple Airlines
Find Deal
Thu, 29 Jan - Tue, 10 Feb
Scandinavian Airlines Logo
17:40 - 16:00JFK-LHR
17h 20m2 stops
Scandinavian Airlines Logo
19:50 - 15:45LHR-JFK
24h 55m2 stops
£336Scandinavian Airlines
Find Deal
Sat, 24 Jan - Sun, 25 Jan
TAP AIR PORTUGAL Logo
22:00 - 21:35JFK-LHR
18h 35m1 stop
TAP AIR PORTUGAL Logo
19:55 - 20:05LHR-JFK
29h 10m1 stop
£337TAP AIR PORTUGAL
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Mon, 24 Nov - Sun, 7 Dec
British Airways Logo
08:05 - 20:00JFK-LHR
6h 55mdirect
British Airways Logo
10:45 - 19:15LHR-JFK
13h 30m1 stop
£339British Airways
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Sat, 8 Nov - Sun, 9 Nov
TAP AIR PORTUGAL Logo
22:00 - 22:40JFK-LHR
19h 40m1 stop
TAP AIR PORTUGAL Logo
19:55 - 20:05LHR-JFK
29h 10m1 stop
£339TAP AIR PORTUGAL
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Mon, 1 Dec - Sun, 7 Dec
SWISS Logo
16:25 - 11:15JFK-LHR
13h 50m1 stop
SWISS Logo
20:05 - 13:05LHR-JFK
22h 00m1 stop
£340SWISS
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Mon, 24 Nov - Tue, 2 Dec
Air Canada Logo
19:05 - 09:35LGA-LHR
9h 30m1 stop
Air Canada Logo
09:30 - 16:49LHR-LGA
12h 19m1 stop
£343Air Canada
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Wed, 15 Oct - Thu, 30 Apr
Air Canada Logo
13:05 - 07:10LGA-LHR
13h 05m1 stop
Air Canada Logo
13:25 - 19:03LHR-LGA
10h 38m1 stop
£360Air Canada
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Sun, 16 Nov - Sun, 23 Nov
SWISS Logo
19:35 - 18:40JFK-LHR
18h 05m1 stop
SWISS Logo
09:00 - 16:40LHR-JFK
12h 40m1 stop
£366SWISS
Find Deal
Mon, 3 Nov - Wed, 12 Nov
British Airways Logo
21:35 - 09:30EWR-LHR
6h 55mdirect
British Airways Logo
16:30 - 20:35LHR-EWR
8h 05mdirect
£385British Airways
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Fri, 6 Mar - Wed, 11 Mar

Icelandair flights from Pennsylvania to London Heathrow Airport

Our best Icelandair deals on Pennsylvania to London Heathrow Airport flight tickets
Icelandair
23 Nov
EWR19:35Newark
10h 15m
1 stop
LHR10:50London Heathrow
2 Dec
LHR20:35London Heathrow
26h 50m
1 stop
EWR18:25Newark
Icelandair
17 Nov
IAD19:40Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR19:30London Heathrow
3 Dec
LHR12:15London Heathrow
11h 15m
1 stop
IAD18:30Washington, D.C. Dulles Intl
Icelandair
13 Oct
IAD20:30Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR20:20London Heathrow
22 Oct
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl

LEVEL flights from Pennsylvania to London Heathrow Airport

Our best LEVEL deals on Pennsylvania to London Heathrow Airport flight tickets
LEVEL
8 Jan
JFK23:45New York John F Kennedy Intl
13h 15m
1 stop
LHR18:00London Heathrow
14 Jan
LHR18:50London Heathrow
32h 10m
1 stop
JFK22:00New York John F Kennedy Intl
LEVEL
9 Jan
JFK23:45New York John F Kennedy Intl
28h 25m
1 stop
LHR09:10London Heathrow
12 Jan
LHR18:50London Heathrow
32h 10m
1 stop
JFK22:00New York John F Kennedy Intl
LEVEL
7 Jan
JFK23:45New York John F Kennedy Intl
28h 25m
1 stop
LHR09:10London Heathrow
11 Jan
LHR09:55London Heathrow
17h 05m
1 stop
JFK22:00New York John F Kennedy Intl

momondo Fare Finder

 
Customise your flight search to find flights from Pennsylvania to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 3 October 2025.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 29/1

23:45-18:00

1 stop13h 15m

London Heathrow

Tue 10/2

09:55-22:00

1 stop17h 05m

£336

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 24/1

17:40-16:00

2 stops17h 20m

London Heathrow

Sun 25/1

19:50-15:45

2 stops24h 55m

£336

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 24/11

22:00-21:35

1 stop18h 35m

London Heathrow

Sun 7/12

19:55-20:05

1 stop29h 10m

£337

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 8/11

08:05-20:00

Nonstop6h 55m

London Heathrow

Sun 9/11

10:45-19:15

1 stop13h 30m

£339

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 1/12

22:00-22:40

1 stop19h 40m

London Heathrow

Sun 7/12

19:55-20:05

1 stop29h 10m

£339

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 24/11

16:25-11:15

1 stop13h 50m

London Heathrow

Tue 2/12

20:05-13:05

1 stop22h 00m

£340

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 15/10

19:05-09:35

1 stop9h 30m

London Heathrow

Thu 30/4

09:30-16:49

1 stop12h 19m

£343

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 16/11

13:05-07:10

1 stop13h 05m

London Heathrow

Sun 23/11

13:25-19:03

1 stop10h 38m

£360

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 3/11

19:35-18:40

1 stop18h 05m

London Heathrow

Wed 12/11

09:00-16:40

1 stop12h 40m

£366

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 6/3

21:35-09:30

Nonstop6h 55m

London Heathrow

Wed 11/3

16:30-20:35

Nonstop8h 05m

£385

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Pennsylvania to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

In general, September is the cheapest month to fly from Pennsylvania to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £490. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Pennsylvania averaging around £519.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Pennsylvania is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £499. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £739.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Pennsylvania to London Heathrow Airport at midday for as low as £538. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £629 on average. Flights to London Heathrow Airport from Pennsylvania in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Pennsylvania to London Heathrow flight route?

Fly from Pittsburgh to London Heathrow for the best Pennsylvania - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £610 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Pennsylvania for as low as £535 on momondo.

What cabin class options are available on Pennsylvania to London Heathrow flights?

There are 3 cabin classes available to choose from on Pennsylvania to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pennsylvania to London Heathrow Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a Pennsylvania to London Heathrow Airport flight.

Cheap Pennsylvania to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to London Heathrow Airport

Best price found

£377

Fastest flight time

1h 50m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Pennsylvania in the past 72 hours is £377. The best return flight deal from Pennsylvania to London Heathrow Airport found on momondo in the last 72 hours is £468.
The fastest flight from Pennsylvania to London Heathrow Airport takes 1h 50m
Direct flights go from Pennsylvania to London Heathrow Airport every day.
  • When did momondo last update prices for flights from Pennsylvania to London Heathrow Airport?

    Prices for flights from Pennsylvania to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from Pennsylvania to London Heathrow Airport?

  • How old do you have to be to fly from Pennsylvania to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Pennsylvania to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Pennsylvania to London Heathrow Airport?

Best airlines flying from Pennsylvania to London Heathrow Airport

Compare and see reviews for airlines that fly from Pennsylvania to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £389Free CancellationRating
6.7
7,415 reviews
Search British Airways flights
Aer LingusPriceFrom £390Free CancellationRating
7.2
1,309 reviews
Search Aer Lingus flights
IberiaPriceFrom £415Free CancellationRating
7.0
2,967 reviews
Search Iberia flights
JetBluePriceFrom £425Free CancellationRating
7.2
2,911 reviews
Search JetBlue flights
American AirlinesPriceFrom £508Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Maidstone
Gatwick
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Poole
Swanage
Colchester
Worthing
Hayes
Dover

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pennsylvania to London for you.

Can I find flights from Pennsylvania to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Pennsylvania with this policy.

How can momondo help me find flights from Pennsylvania to London?

Once you have performed a search for Pennsylvania to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Pennsylvania to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Pennsylvania to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Sun 2/11
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