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Cheap flights from Pittsburgh to London Heathrow Airport from £190

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — LHR
19 Aug — 26 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Pittsburgh to London Heathrow are usually found in February or October, booked 63 days in advance, depart on a Thursday or Saturday and return on a Friday

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 20 July 2026.

Fri 2/1020:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Wed 7/1013:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 19/7£548
Fri 2/1020:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Tue 6/1021:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 19/7£549
Sun 27/920:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Sun 4/1013:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 19/7£552
Sun 27/920:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Wed 7/1013:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 19/7£553
Sun 27/920:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Thu 8/1021:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 19/7£555
Wed 30/920:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Sun 11/1013:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 19/7£556
Wed 23/920:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Wed 30/913:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 16/7£557
Fri 25/920:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Tue 29/921:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 18/7£558
Sun 23/820:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Fri 11/913:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 18/7£558
Mon 10/820:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Thu 20/821:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 17/7£559
Sun 23/820:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Tue 8/921:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 18/7£560
Mon 10/820:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Wed 19/813:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 19/7£566

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 20 July 2026.

Round-trip from

£548

One-way from

£189

Popular in

December

Cheapest in

February

Average price

£844
Icelandair
  • Icelandair
  • 2/10-4/10
  • 2 total stops
  • 30h 05m total
  • Pittsburgh to London
Search Deals
Icelandair
  • Icelandair
  • 14/10
  • 1 total stop
  • 18h 55m total
  • Pittsburgh to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£47 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 July 2026
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 20 July 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

Fri 18/9

20:25-11:55

1 stop10h 30m

London Heathrow

Sun 20/9

13:05-19:15

1 stop11h 10m

£558

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 18/10

15:15-09:20

2 stops13h 05m

London Heathrow

Sun 1/11

06:50-18:24

2 stops16h 34m

£684

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 14/10

08:00-07:15

1 stop18h 15m

London Heathrow

Tue 20/10

06:30-18:10

2 stops16h 40m

£697

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 23/9

15:25-11:55

2 stops15h 30m

London Heathrow

Sat 3/10

21:25-19:15

1 stop26h 50m

£706

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Thu 13/8

11:59-06:45

1 stop13h 46m

London Heathrow

Wed 9/9

06:30-18:01

2 stops16h 31m

£732

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 23/11

19:59-06:40

1 stop29h 41m

London Heathrow

Mon 30/11

15:00-18:36

1 stop32h 36m

£735

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 23/9

10:22-06:25

2 stops15h 03m

London Heathrow

Sat 3/10

08:40-20:56

2 stops17h 16m

£736

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Thu 22/10

21:45-10:05

Nonstop7h 20m

London Heathrow

Sun 1/11

12:55-21:34

1 stop13h 39m

£738

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 14/10

18:30-18:50

3 stops19h 20m

London Heathrow

Tue 20/10

06:00-08:27

2 stops31h 27m

£739

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Thu 13/8

12:53-17:45

2 stops23h 52m

London Heathrow

Wed 9/9

11:20-08:27

2 stops26h 07m

£743

Flights are sorted by cheapest return flights first.

Deals found on 20/7

Showing 1-10 of 22 resultsSorted by cheapest first
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3

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 62 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, February is the cheapest month in which you can book a flight from Pittsburgh to London Heathrow Airport (average of £513). Flying from Pittsburgh to London Heathrow Airport in December is currently the most expensive (average of £1,032). 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 20 July 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 20 July 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
8,127 reviews
Check prices

Comfort

6.8

Food

6.4

Overall

6.7

Boarding

6.9

Crew

7.7

Entertainment

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,127 reviews
British Airways
6.7
Okay
8,127 reviews
Check prices

Comfort

6.8

Food

6.4

Overall

6.7

Boarding

6.9

Crew

7.7

Entertainment

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

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 5 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 15h 03m. Delta provides one of the quickest options available for as low as £736. 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 43% 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 (77%), Aer Lingus (77%) or Finnair (77%) as they are the most reliable in getting you off to your destination on time.

  • 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, February is the cheapest month in which you can book a flight from Pittsburgh to London Heathrow Airport (average of £513). Flying from Pittsburgh to London Heathrow Airport in December is currently the most expensive (average of £1,032). 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
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

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 20 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£397Average£497FlexibilityNo 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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