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Cheap flights from London Heathrow Airport to Pennsylvania from £145

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Pennsylvania departing on 24/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London Heathrow Airport to Pennsylvania

Cheap return flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
09:40 - 18:01
LHR
-
PIT
13h 21m
1 stop
Virgin Atlantic Logo
17:11 - 08:50
PIT
-
LHR
10h 39m
1 stop
£145Virgin Atlantic
Thu, 24 Sep - Tue, 13 Oct
Virgin Atlantic Logo
13:40 - 23:58
LHR
-
PIT
15h 18m
2 stops
Virgin Atlantic Logo
17:11 - 08:50
PIT
-
LHR
10h 39m
1 stop
£197Virgin Atlantic
Thu, 24 Sep - Tue, 13 Oct
Aer Lingus Logo
08:50 - 15:45
LHR
-
IAD
11h 55m
1 stop
Aer Lingus Logo
20:55 - 12:40
IAD
-
LHR
10h 45m
1 stop
£443Aer Lingus
Wed, 15 Jul - Wed, 12 Aug
Aer Lingus Logo
12:00 - 19:25
LHR
-
IAD
12h 25m
1 stop
Aer Lingus Logo
17:15 - 09:05
IAD
-
LHR
10h 50m
1 stop
£447Aer Lingus
Wed, 12 Aug - Sat, 29 Aug
British Airways Logo
09:15 - 15:58
LHR
-
DCA
11h 43m
1 stop
British Airways Logo
18:23 - 09:50
DCA
-
LHR
10h 27m
1 stop
£448British Airways
Mon, 24 Aug - Sun, 6 Sep
British Airways Logo
17:25 - 23:10
LHR
-
DCA
10h 45m
1 stop
British Airways Logo
16:59 - 08:00
DCA
-
LHR
10h 01m
1 stop
£460British Airways
Fri, 11 Sep - Sun, 27 Sep
JetBlue Logo
08:15 - 23:44
LHR
-
PIT
20h 29m
1 stop
JetBlue Logo
06:00 - 20:45
PIT
-
LHR
9h 45m
1 stop
£486JetBlue
Wed, 16 Sep - Wed, 7 Oct
JetBlue Logo
08:15 - 23:44
LHR
-
PIT
20h 29m
1 stop
JetBlue Logo
06:00 - 20:45
PIT
-
LHR
9h 45m
1 stop
£491JetBlue
Wed, 16 Sep - Wed, 7 Oct
Finnair Logo
13:10 - 23:08
LHR
-
ABE
14h 58m
1 stop
Finnair Logo
17:12 - 12:15
ABE
-
LHR
14h 03m
1 stop
£793Finnair
Mon, 27 Jul - Thu, 6 Aug
Finnair Logo
13:45 - 23:03
LHR
-
MDT
14h 18m
1 stop
Finnair Logo
19:31 - 08:05
MDT
-
LHR
31h 34m
1 stop
£823Finnair
Mon, 31 Aug - Sat, 5 Sep

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KLM flights from London Heathrow Airport to Pennsylvania

Our best KLM deals on London Heathrow Airport to Pennsylvania flight tickets
KLM
11 Sept
LHR11:45London Heathrow
10h 20m
1 stop
JFK17:05New York John F Kennedy Intl
14 Sept
JFK23:40New York John F Kennedy Intl
7h 25m
LHR12:05London Heathrow
£487
KLM
21 Nov
LHR14:30London Heathrow
8h 20m
JFK17:50New York John F Kennedy Intl
27 Nov
JFK20:00New York John F Kennedy Intl
7h 05m
LHR08:05London Heathrow
£497
KLM
3 Jul
LHR08:40London Heathrow
10h 55m
1 stop
JFK14:35New York John F Kennedy Intl
7 Jul
JFK18:00New York John F Kennedy Intl
7h 20m
LHR06:20London Heathrow
£503

Icelandair flights from London Heathrow Airport to Pennsylvania

Our best Icelandair deals on London Heathrow Airport to Pennsylvania flight tickets
Icelandair
14 Jul
LHR21:25London Heathrow
29h 50m
1 stop
IAD22:15Washington, D.C. Dulles Intl
13 Nov
IAD19:40Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR19:30London Heathrow
£445
Icelandair
4 Aug
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl
19 Aug
IAD20:30Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR20:20London Heathrow
£446
Icelandair
6 Aug
LHR21:25London Heathrow
29h 50m
1 stop
IAD22:15Washington, D.C. Dulles Intl
19 Aug
IAD20:30Washington, D.C. Dulles Intl
10h 25m
1 stop
LHR11:55London Heathrow
£455

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Pennsylvania 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 26 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPittsburgh

LHR - PIT

LHRPIT

London Heathrow

Thu 24/9

09:40-18:01

1 stop13h 21m

Pittsburgh

Tue 13/10

17:11-08:50

1 stop10h 39m

£145

LondonPittsburgh

LHR - PIT

LHRPIT

London Heathrow

Thu 24/9

13:40-23:58

2 stops15h 18m

Pittsburgh

Tue 13/10

17:11-08:50

1 stop10h 39m

£197

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 15/7

08:50-15:45

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 12/8

20:55-12:40

1 stop10h 45m

£443

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 12/8

12:00-19:25

1 stop12h 25m

Washington, D.C. Dulles Intl

Sat 29/8

17:15-09:05

1 stop10h 50m

£447

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 24/8

09:15-15:58

1 stop11h 43m

Washington, D.C. Reagan-National

Sun 6/9

18:23-09:50

1 stop10h 27m

£448
Fastest return journey

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 11/9

17:25-23:10

1 stop10h 45m

Washington, D.C. Reagan-National

Sun 27/9

16:59-08:00

1 stop10h 01m

£460

LondonPittsburgh

LHR - PIT

LHRPIT

London Heathrow

Wed 16/9

08:15-23:44

1 stop20h 29m

Pittsburgh

Wed 7/10

06:00-20:45

1 stop9h 45m

£486

LondonPittsburgh

LHR - PIT

LHRPIT

London Heathrow

Wed 16/9

08:15-23:44

1 stop20h 29m

Pittsburgh

Wed 7/10

06:00-20:45

1 stop9h 45m

£491

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 27/7

13:10-23:08

1 stop14h 58m

Allentown-Bethlehem

Thu 6/8

17:12-12:15

1 stop14h 03m

£793

LondonHarrisburg

LHR - MDT

LHRMDT

London Heathrow

Mon 31/8

13:45-23:03

1 stop14h 18m

Harrisburg

Sat 5/9

19:31-08:05

1 stop31h 34m

£823

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 Pennsylvania from

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

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 Pennsylvania?

In general, August is the cheapest month to fly from London Heathrow Airport to Pennsylvania. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £215. If you don’t want to visit Pennsylvania in August, then you should wait until January to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £320.

What is the cheapest day to depart on your flight to Pennsylvania?

According to our data, Tuesday is the cheapest day to fly to Pennsylvania from London Heathrow Airport. The lowest ticket price found for a Tuesday departure recently was £618. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Pennsylvania is Sunday, with ticket prices averaging around £699.

What is the cheapest time of day to depart on your flight to Pennsylvania?

Flying to Pennsylvania from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as £652 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Pennsylvania is at midday when prices are around £664.

What is the cheapest London Heathrow to Pennsylvania flight route?

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

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

You are more likely to see cheaper flights to Pennsylvania from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Pennsylvania for around £635 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pennsylvania from London Heathrow Airport for as low as £563 on momondo.

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

There are 3 cabin classes available to choose from on London Heathrow Airport to Pennsylvania 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 London Heathrow Airport to Pennsylvania flights?

You could potentially save up to 3% on your flight if you consider stops on a London Heathrow Airport to Pennsylvania flight.

Cheap London Heathrow Airport to Pennsylvania flight deals and tips

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

Best price found

£501

Fastest flight time

7h 45m

Direct flights

Every day

Airports in Pennsylvania

152 airports
The best one-way flight to Pennsylvania from London Heathrow Airport in the past 72 hours is £501. The best return flight deal from London Heathrow Airport to Pennsylvania found on momondo in the last 72 hours is £610.
The fastest flight from London Heathrow Airport to Pennsylvania takes 7h 45m
Direct flights go from London Heathrow Airport to Pennsylvania every day.
There are 152 airports in Pennsylvania. From London Heathrow Airport there are direct flights to Newark (EWR), New York John F Kennedy Intl (JFK).
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Pennsylvania

  • When did momondo last update prices for flights from London Heathrow Airport to Pennsylvania?

    Prices for flights from London Heathrow Airport to Pennsylvania refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Pennsylvania.

  • What documentation or ID do you need to fly to Pennsylvania?

    The necessary travel and health documents for your Pennsylvania trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from London Heathrow Airport to Pennsylvania

Compare and see reviews for airlines that fly from London Heathrow Airport to Pennsylvania with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £215Free CancellationRating
6.7
8,071 reviews
Search British Airways flights
IcelandairPriceFrom £392Free CancellationRating
7.0
690 reviews
Search Icelandair flights
JetBluePriceFrom £426Free CancellationRating
7.1
3,012 reviews
Search JetBlue flights
Air CanadaPriceFrom £442Free CancellationRating
7.1
11,261 reviews
Search Air Canada flights
LufthansaPriceFrom £455Free CancellationRating
6.8
8,096 reviews
Search Lufthansa flights
IberiaPriceFrom £461Free CancellationRating
7.0
3,247 reviews
Search Iberia flights
United AirlinesPriceFrom £464Free CancellationRating
7.4
9,893 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £467Free CancellationRating
7.5
690 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £469Free CancellationRating
7.6
1,415 reviews
Search Finnair flights
Aer LingusPriceFrom £472Free CancellationRating
7.3
1,626 reviews
Search Aer Lingus flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Pennsylvania. momondo saves you time and could save you money on your trip.

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

All flight searches from London to Pennsylvania on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for London to Pennsylvania 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 London to Pennsylvania right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Pennsylvania, momondo offers a useful price alert feature which will track prices for flights to Pennsylvania from London and alert you when they change.

An easier way to manage your Pennsylvania trip

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