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Cheap flights from Pittsburgh to London from £174

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to London departing on 19/11. 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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Iberia Logo
21:15 - 09:40PIT-LHR
7h 25mdirect
Iberia Logo
16:00 - 19:20LHR-PIT
8h 20mdirect
£445Iberia
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Mon, 16 Feb - Wed, 25 Feb
Iberia Logo
09:58 - 22:10PIT-LHR
31h 12m1 stop
Iberia Logo
11:25 - 18:41LHR-PIT
36h 16m2 stops
£447Iberia
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Sat, 15 Nov - Mon, 8 Dec
British Airways Logo
17:14 - 09:15PIT-LHR
11h 01m1 stop
British Airways Logo
16:00 - 19:20LHR-PIT
8h 20mdirect
£448British Airways
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Mon, 16 Feb - Wed, 25 Feb
Delta Logo
11:26 - 06:50PIT-LHR
14h 24m1 stop
Delta Logo
08:55 - 21:27LHR-PIT
17h 32m2 stops
£449Delta
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Wed, 19 Nov - Fri, 12 Dec
Delta Logo
06:06 - 07:50PIT-LHR
20h 44m1 stop
Delta Logo
06:30 - 17:39LHR-PIT
16h 09m2 stops
£450Delta
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Wed, 19 Nov - Thu, 11 Dec
British Airways Logo
21:15 - 09:40PIT-LHR
7h 25mdirect
British Airways Logo
08:20 - 14:55LHR-PIT
11h 35m1 stop
£453British Airways
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Wed, 14 Jan - Tue, 20 Jan
Delta Logo
11:26 - 07:50PIT-LHR
15h 24m1 stop
Delta Logo
09:40 - 17:39LHR-PIT
12h 59m1 stop
£454Delta
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Wed, 19 Nov - Thu, 11 Dec
Scandinavian Airlines Logo
11:30 - 09:20PIT-LHR
16h 50m2 stops
Scandinavian Airlines Logo
06:40 - 21:20LHR-PIT
19h 40m2 stops
£456Scandinavian Airlines
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Mon, 16 Feb - Wed, 25 Feb
Scandinavian Airlines Logo
17:26 - 17:40PIT-LHR
19h 14m2 stops
Scandinavian Airlines Logo
07:05 - 22:54LHR-PIT
20h 49m3 stops
£459Scandinavian Airlines
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Mon, 8 Dec - Mon, 15 Dec
KLM Logo
17:04 - 10:15PIT-LHR
12h 11m1 stop
KLM Logo
13:05 - 22:40LHR-PIT
14h 35m1 stop
£461KLM
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Wed, 7 Jan - Wed, 14 Jan

Finnair flights from Pittsburgh to London Heathrow Airport

Our best Finnair deals on Pittsburgh to London Heathrow Airport flight tickets
Finnair
2 Feb
PIT21:15Pittsburgh
7h 25m
LHR09:40London Heathrow
14 Feb
LHR16:00London Heathrow
8h 20m
PIT19:20Pittsburgh
£480
Find similar
Finnair
14 Feb
PIT19:36Pittsburgh
21h 34m
1 stop
LHR22:10London Heathrow
28 Feb
LHR16:00London Heathrow
8h 20m
PIT19:20Pittsburgh
£496
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Finnair
15 Nov
PIT18:22Pittsburgh
10h 18m
1 stop
LHR09:40London Heathrow
8 Dec
LHR16:00London Heathrow
8h 20m
PIT19:20Pittsburgh
£515
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Air Canada flights from Pittsburgh to London Heathrow Airport

Our best Air Canada deals on Pittsburgh to London Heathrow Airport flight tickets
Air Canada
10 Nov
PIT17:55Pittsburgh
32h 15m
2 stops
LHR07:10London Heathrow
19 Nov
LHR13:25London Heathrow
32h 49m
2 stops
PIT17:14Pittsburgh
£474
Find similar
Air Canada
16 Nov
PIT08:45Pittsburgh
17h 25m
2 stops
LHR07:10London Heathrow
5 Dec
LHR13:25London Heathrow
36h 25m
2 stops
PIT20:50Pittsburgh
£475
Find similar
Air Canada
22 Nov
PIT17:55Pittsburgh
31h 35m
1 stop
LHR06:30London Heathrow
9 Dec
LHR13:25London Heathrow
28h 41m
2 stops
PIT13:06Pittsburgh
£476
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momondo Fare Finder

 
Customise your flight search to find flights from Pittsburgh 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 4 November 2025.
Use the filters below to find and compare flights from Pittsburgh to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 16/2

21:15-09:40

Nonstop7h 25m

London Heathrow

Wed 25/2

16:00-19:20

Nonstop8h 20m

£445

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sat 15/11

09:58-22:10

1 stop31h 12m

London Heathrow

Mon 8/12

11:25-18:41

2 stops36h 16m

£447

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 16/2

17:14-09:15

1 stop11h 01m

London Heathrow

Wed 25/2

16:00-19:20

Nonstop8h 20m

£448

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 19/11

11:26-06:50

1 stop14h 24m

London Heathrow

Fri 12/12

08:55-21:27

2 stops17h 32m

£449

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 19/11

06:06-07:50

1 stop20h 44m

London Heathrow

Thu 11/12

06:30-17:39

2 stops16h 09m

£450

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 14/1

21:15-09:40

Nonstop7h 25m

London Heathrow

Tue 20/1

08:20-14:55

1 stop11h 35m

£453

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 19/11

11:26-07:50

1 stop15h 24m

London Heathrow

Thu 11/12

09:40-17:39

1 stop12h 59m

£454

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 16/2

11:30-09:20

2 stops16h 50m

London Heathrow

Wed 25/2

06:40-21:20

2 stops19h 40m

£456

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 8/12

17:26-17:40

2 stops19h 14m

London Heathrow

Mon 15/12

07:05-22:54

3 stops20h 49m

£459

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 7/1

17:04-10:15

1 stop12h 11m

London Heathrow

Wed 14/1

13:05-22:40

1 stop14h 35m

£461

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 Pittsburgh 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, October is the cheapest month to fly from Pittsburgh to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £531. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Pittsburgh averaging around £533.

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 Pittsburgh is on a Thursday. momondo users have found tickets for Thursday departures for as low as £483. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £823.

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 in the morning. momondo users have found flights departing from Pittsburgh to London Heathrow Airport in the morning for as low as £563. 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 evening when prices are £646 on average. Flights to London Heathrow Airport from Pittsburgh in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Pittsburgh to London Heathrow flight route?

Fly from Pittsburgh to London Heathrow for the best Pittsburgh - 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 Pittsburgh when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £653 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 Pittsburgh for as low as £579 on momondo.

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

There are 2 cabin classes available to choose from on Pittsburgh 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 Pittsburgh to London Heathrow Airport flights?

No. A direct flight is the cheapest option for a flight between Pittsburgh to London Heathrow Airport.

How have Pittsburgh to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for Pittsburgh to London Heathrow Airport flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Pittsburgh to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Pittsburgh to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Pittsburgh to London Heathrow Airport (PIT to LHR) flight deals and tips

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

Best price found

£483

Fastest flight time

7h 20m

Direct flights

Every day
The best flight deal from Pittsburgh to London Heathrow Airport found on momondo in the last 72 hours is £483
The fastest flight from Pittsburgh to London Heathrow Airport takes 7h 20m
Direct flights go from Pittsburgh to London Heathrow Airport every day.
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  • How far is Pittsburgh to London Heathrow by plane?

    A flight from Pittsburgh to London Heathrow will travel around 3700.3 mi. In terms of flight time, this usually takes a little over 7h 25m.

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

    Prices for flights from Pittsburgh Airport to London Heathrow Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pittsburgh Airport to London Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from Pittsburgh to London Heathrow Airport?

Best airlines flying from Pittsburgh to London Heathrow Airport

Compare and see reviews for airlines that fly from Pittsburgh to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £409Free CancellationRating
6.7
7,494 reviews
Search British Airways flights

  • British Airways Flights From Pittsburgh to London Heathrow Airport

    The lowest priced British Airways flight from Pittsburgh to London Heathrow Airport from the last 72 hours was £409. Generally, British Airways has 3 flights on this route every week with an average price of £567. British Airways is rated 6.7/10 by our users.

Travelling to a place near London?

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

Why use momondo?

Why should I use momondo to find a flight deal from Pittsburgh 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 Pittsburgh to London for you.

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

momondo does allow users to show only those flights to London from Pittsburgh which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Pittsburgh and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to London from Pittsburgh. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Heathrow Airport trip

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