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Cheap flights from Pittsburgh to London from £166

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 16/10. 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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0 bags

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Cheap return flights

Air Canada Logo
15:25 - 09:35PIT-LHR
13h 10m1 stop
Air Canada Logo
12:05 - 15:34LHR-PIT
32h 29m1 stop
£393Air Canada
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Sun, 12 Oct - Tue, 21 Oct
Multiple Airlines Logo
17:55 - 13:00PIT-LHR
14h 05m2 stops
Multiple Airlines Logo
19:25 - 17:14LHR-PIT
26h 49m2 stops
£394Multiple Airlines
Find Deal
Tue, 11 Nov - Wed, 19 Nov
Lufthansa Logo
16:15 - 08:35PIT-LHR
11h 20m1 stop
Lufthansa Logo
15:50 - 22:28LHR-PIT
11h 38m1 stop
£397Lufthansa
Find Deal
Mon, 6 Oct - Wed, 22 Oct
United Airlines Logo
06:15 - 06:40PIT-LHR
19h 25m1 stop
United Airlines Logo
09:00 - 11:14LHR-PIT
31h 14m2 stops
£398United Airlines
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Wed, 5 Nov - Wed, 12 Nov
United Airlines Logo
06:15 - 06:40PIT-LHR
19h 25m1 stop
United Airlines Logo
13:25 - 23:27LHR-PIT
39h 02m2 stops
£399United Airlines
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Mon, 3 Nov - Tue, 11 Nov
British Airways Logo
21:40 - 10:05PIT-LHR
7h 25mdirect
British Airways Logo
16:40 - 19:45LHR-PIT
8h 05mdirect
£404British Airways
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Sun, 12 Oct - Thu, 23 Oct
American Airlines Logo
21:40 - 10:05PIT-LHR
7h 25mdirect
American Airlines Logo
16:40 - 19:45LHR-PIT
8h 05mdirect
£405American Airlines
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Sun, 12 Oct - Tue, 21 Oct
American Airlines Logo
21:40 - 10:05PIT-LHR
7h 25mdirect
American Airlines Logo
16:40 - 19:45LHR-PIT
8h 05mdirect
£407American Airlines
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Sun, 12 Oct - Tue, 21 Oct
British Airways Logo
21:40 - 10:05PIT-LHR
7h 25mdirect
British Airways Logo
14:10 - 21:28LHR-PIT
12h 18m1 stop
£407British Airways
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Tue, 7 Oct - Tue, 14 Oct
Lufthansa Logo
16:15 - 11:50PIT-LHR
14h 35m1 stop
Lufthansa Logo
20:25 - 16:52LHR-PIT
25h 27m2 stops
£409Lufthansa
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Tue, 7 Oct - Mon, 13 Oct

Air Canada flights from Pittsburgh to London Heathrow Airport

Our best Air Canada deals on Pittsburgh to London Heathrow Airport flight tickets
Air Canada
12 Oct
PIT15:25Pittsburgh
13h 10m
1 stop
LHR09:35London Heathrow
21 Oct
LHR12:05London Heathrow
32h 29m
1 stop
PIT15:34Pittsburgh
£393
Find similar
Air Canada
14 Oct
PIT15:25Pittsburgh
13h 10m
1 stop
LHR09:35London Heathrow
21 Oct
LHR06:00London Heathrow
14h 34m
2 stops
PIT15:34Pittsburgh
£395
Find similar
Air Canada
12 Oct
PIT15:25Pittsburgh
13h 10m
1 stop
LHR09:35London Heathrow
21 Oct
LHR06:00London Heathrow
14h 34m
2 stops
PIT15:34Pittsburgh
£396
Find similar

American Airlines flights from Pittsburgh to London Heathrow Airport

Our best American Airlines deals on Pittsburgh to London Heathrow Airport flight tickets
American Airlines
12 Oct
PIT21:40Pittsburgh
7h 25m
LHR10:05London Heathrow
21 Oct
LHR16:40London Heathrow
8h 05m
PIT19:45Pittsburgh
£405
Find similar
American Airlines
12 Oct
PIT21:40Pittsburgh
7h 25m
LHR10:05London Heathrow
21 Oct
LHR16:40London Heathrow
8h 05m
PIT19:45Pittsburgh
£407
Find similar
American Airlines
12 Oct
PIT06:17Pittsburgh
10h 23m
1 stop
LHR21:40London Heathrow
21 Oct
LHR16:40London Heathrow
8h 05m
PIT19:45Pittsburgh
£408
Find similar

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 18 September 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

Sun 12/10

15:25-09:35

1 stop13h 10m

London Heathrow

Tue 21/10

12:05-15:34

1 stop32h 29m

£393

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Tue 11/11

17:55-13:00

2 stops14h 05m

London Heathrow

Wed 19/11

19:25-17:14

2 stops26h 49m

£394

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 6/10

16:15-08:35

1 stop11h 20m

London Heathrow

Wed 22/10

15:50-22:28

1 stop11h 38m

£397

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 5/11

06:15-06:40

1 stop19h 25m

London Heathrow

Wed 12/11

09:00-11:14

2 stops31h 14m

£398

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 3/11

06:15-06:40

1 stop19h 25m

London Heathrow

Tue 11/11

13:25-23:27

2 stops39h 02m

£399

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 12/10

21:40-10:05

Nonstop7h 25m

London Heathrow

Thu 23/10

16:40-19:45

Nonstop8h 05m

£404

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 12/10

21:40-10:05

Nonstop7h 25m

London Heathrow

Tue 21/10

16:40-19:45

Nonstop8h 05m

£405

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 12/10

21:40-10:05

Nonstop7h 25m

London Heathrow

Tue 21/10

16:40-19:45

Nonstop8h 05m

£407

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Tue 7/10

21:40-10:05

Nonstop7h 25m

London Heathrow

Tue 14/10

14:10-21:28

1 stop12h 18m

£407

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Tue 7/10

16:15-11:50

1 stop14h 35m

London Heathrow

Mon 13/10

20:25-16:52

2 stops25h 27m

£409

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, January 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 £511. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Pittsburgh averaging around £514.

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 £465. 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 £774.

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 £542. 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 £633 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 £620 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 £566 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?

You could potentially save up to 58% on your flight if you consider stops on a Pittsburgh to London Heathrow Airport flight.

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

As of September 2025, prices for Pittsburgh to London Heathrow Airport flights are approximately 27% 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

£428

Fastest flight time

7h 25m

Direct flights

Every day
The best flight deal from Pittsburgh to London Heathrow Airport found on momondo in the last 72 hours is £428
The fastest flight from Pittsburgh to London Heathrow Airport takes 7h 25m
Direct flights go from Pittsburgh to London Heathrow Airport every day.
Search flight deals

  • 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 £394Free CancellationRating
6.7
7,367 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 £537. Generally, British Airways has 4 flights on this route every week with an average price of £810. 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
Luton
Milton Keynes
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Gatwick
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Swanage
Poole
Colchester
Worthing
Salisbury
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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