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Cheap flights from Pittsburgh to London Heathrow Airport from £237

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — LHR
24 Jun — 1 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Pittsburgh to London Heathrow are usually found in October or February, booked 22 days in advance, depart on a Thursday or Tuesday and return on a Saturday

Cheap flight deals from Pittsburgh to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Pittsburgh to Heathrow
Explore the most affordable flight options available from Pittsburgh to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 May 2026.

Fri 31/720:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Fri 21/813:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 21/5£688
Fri 31/720:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Thu 20/821:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 21/5£689
Thu 1/1021:45
PIT
-
LHR
Nonstop7h 20m
British Airways
Tue 13/1008:20
LHR
-
PIT
1 stop10h 48m
British Airways
Deal found 25/5£690
Wed 19/819:59
PIT
-
LHR
1 stop9h 41m
Multiple Airlines
Wed 26/806:00
LHR
-
PIT
2 stops16h 14m
Multiple Airlines
Deal found 25/5£690
Sun 18/1021:45
PIT
-
LHR
Nonstop7h 20m
British Airways
Tue 27/1011:45
LHR
-
PIT
1 stop13h 53m
British Airways
Deal found 25/5£691
Fri 16/1020:59
PIT
-
LHR
1 stop28h 31m
JetBlue
Sat 24/1008:40
LHR
-
PIT
1 stop16h 24m
JetBlue
Deal found 23/5£692
Sun 23/820:09
PIT
-
LHR
1 stop11h 41m
British Airways
Mon 7/914:45
LHR
-
PIT
1 stop12h 00m
British Airways
Deal found 25/5£693
Sun 30/821:50
PIT
-
LHR
Nonstop7h 15m
British Airways
Tue 8/916:40
LHR
-
PIT
Nonstop8h 15m
British Airways
Deal found 22/5£693
Fri 16/1009:30
PIT
-
LHR
1 stop16h 00m
JetBlue
Fri 23/1011:55
LHR
-
PIT
1 stop16h 49m
JetBlue
Deal found 21/5£694
Wed 12/806:00
PIT
-
LHR
1 stop9h 45m
JetBlue
Sat 12/908:15
LHR
-
PIT
1 stop20h 29m
JetBlue
Deal found 25/5£695
Fri 16/1018:30
PIT
-
LHR
1 stop31h 00m
JetBlue
Mon 26/1009:20
LHR
-
PIT
1 stop27h 07m
JetBlue
Deal found 24/5£696
Mon 3/820:25
PIT
-
LHR
1 stop18h 55m
Multiple Airlines
Mon 30/1120:05
LHR
-
PIT
2 stops29h 46m
Multiple Airlines
Deal found 25/5£696

Find flight deals from Pittsburgh to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 May 2026.

Round-trip from

£688

One-way from

£237

Popular in

December

Cheapest in

October

Average price

£786

Good round-trip deal

£242 or less

Good one-way deal

£684 or less
Icelandair
  • Icelandair
  • 31/7-21/8
  • 2 total stops
  • 21h 40m total
  • Pittsburgh to London
Search Deals
19/8
  • 19/8
  • 2 total stops
  • 16h 15m total
  • Pittsburgh to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Pittsburgh to London Heathrow.
Search Deals
Price to beat on a one-way flight from Pittsburgh to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Pittsburgh to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 25 May 2026.
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

Cheapest return flight

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Tue 11/8

14:11-13:00

2 stops17h 49m

London Heathrow

Sat 12/9

06:00-17:14

2 stops16h 14m

£751

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Thu 20/8

06:00-20:45

1 stop9h 45m

London Heathrow

Sun 13/9

11:55-23:44

1 stop16h 49m

£753

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 12/8

06:08-09:20

2 stops22h 12m

London Heathrow

Fri 21/8

07:05-21:37

3 stops19h 32m

£788

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 9/8

12:58-06:30

1 stop12h 32m

London Heathrow

Sat 15/8

11:55-23:21

1 stop16h 26m

£788

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sat 31/10

07:20-09:20

3 stops22h 00m

London Heathrow

Wed 11/11

06:40-21:26

3 stops19h 46m

£827

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 15/7

07:20-09:35

2 stops21h 15m

London Heathrow

Wed 22/7

07:05-21:39

3 stops19h 34m

£884

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Thu 22/10

07:20-09:35

2 stops21h 15m

London Heathrow

Sun 1/11

21:05-21:26

3 stops29h 21m

£949

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Thu 2/7

19:30-20:40

1 stop20h 10m

London Heathrow

Sun 5/7

06:50-18:40

2 stops16h 50m

£1,004
Fastest return journey

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Fri 12/6

18:18-09:20

1 stop10h 02m

London Heathrow

Wed 17/6

09:30-14:53

1 stop10h 23m

£1,069

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 10/6

10:54-07:55

2 stops16h 01m

London Heathrow

Wed 17/6

06:00-21:02

2 stops20h 02m

£1,074

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Pittsburgh to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pittsburgh with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pittsburgh to London Heathrow Airport

How far ahead should I book a flight from Pittsburgh to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Pittsburgh to London Heathrow Airport, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Pittsburgh to London Heathrow Airport?

Currently, October is the cheapest month in which you can book a flight from Pittsburgh to London Heathrow Airport (average of £509). Flying from Pittsburgh to London Heathrow Airport in December is currently the most expensive (average of £992). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PIT to LHR?

Find hourly flight availability from Pittsburgh to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 May 2026.

When flying from Pittsburgh to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Pittsburgh to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 25 May 2026.
See what other customers who have flown with British Airways from Pittsburgh to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,004 reviews
Check prices

Overall

6.7

Crew

7.7

Entertainment

6.4

Food

6.4

Boarding

6.9

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance
British Airways
6.7
Okay
8,004 reviews
British Airways
6.7
Okay
8,004 reviews
Check prices

Overall

6.7

Crew

7.7

Entertainment

6.4

Food

6.4

Boarding

6.9

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance

Related info for your journey

Find useful and relevant information for your journey from Pittsburgh to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Pittsburgh to London Heathrow?

    Most people fly from Pittsburgh (PIT) if they book a flight from Pittsburgh to London Heathrow. On average, Pittsburgh has 4 outbound flights to London Heathrow per day from 1 airline. Pittsburgh is conveniently located just 13.5 mi from Pittsburgh’s city center.

  • How long is the flight from Pittsburgh to London Heathrow Airport?

    A quick flight from Pittsburgh to London Heathrow Airport can take about 9h 45m. Delta provides one of the quickest options available for as low as £753. The distance from Pittsburgh to London Heathrow Airport is about 3708 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Pittsburgh to London Heathrow Airport round-trip?

    Our cheapest airline available from Pittsburgh to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as £397 on this airline. This flight start at 40% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Pittsburgh to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Pittsburgh to London Heathrow Airport consider choosing American Airlines (76%), Aer Lingus (76%) or Finnair (76%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Pittsburgh to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for £242. While the most popular route (Pittsburgh - London Heathrow) can be booked for £588 on average, our data indicates £463 when flying from Pittsburgh to London Heathrow Airport.

  • Can I find deals for flights from Pittsburgh to Heathrow that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to Heathrow.

  • Can I find deals for business class flights from Pittsburgh to Heathrow?

    Yes. Cheapflights offers flight deals from Pittsburgh to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pittsburgh to London Heathrow Airport?

    Currently, October is the cheapest month in which you can book a flight from Pittsburgh to London Heathrow Airport (average of £509). Flying from Pittsburgh to London Heathrow Airport in December is currently the most expensive (average of £992). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Croydon
Northampton
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Romford
Kingston upon Thames
Eastbourne
Ipswich
Swindon
Guildford
Southall

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Pittsburgh to Heathrow

Discover the top airline that operate flights from Pittsburgh to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£397Average£500FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pittsburgh to Heathrow?

When you search for this flight from Pittsburgh to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Pittsburgh to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Pittsburgh by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Pittsburgh to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Pittsburgh to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Pittsburgh to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Pittsburgh to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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