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Cheap flights from Pittsburgh to London Heathrow Airport from £189

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — LHR
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Pittsburgh to London Heathrow are usually found in February or January, booked 63 days in advance, depart on a Thursday or Monday 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 4 August 2026.

Mon 23/1119:20
PIT
-
LHR
1 stop32h 10m
United Airlines
Thu 26/1106:50
LHR
-
PIT
2 stops16h 43m
United Airlines
Deal found 1/8£550
Mon 2/1115:15
PIT
-
LHR
2 stops12h 55m
United Airlines
Wed 4/1106:50
LHR
-
PIT
2 stops15h 05m
United Airlines
Deal found 2/8£551
Wed 23/920:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Tue 13/1021:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 30/7£552
Wed 23/920:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Thu 1/1021:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 3/8£553
Fri 2/1020:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Wed 7/1013:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 30/7£554
Sun 6/920:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Wed 23/913:05
LHR
-
PIT
1 stop11h 10m
Icelandair
Deal found 2/8£555
Sun 6/920:25
PIT
-
LHR
2 stops17h 05m
Multiple Airlines
Tue 15/917:00
LHR
-
PIT
2 stops31h 15m
Multiple Airlines
Deal found 2/8£557
Sun 6/920:25
PIT
-
LHR
1 stop18h 55m
Icelandair
Thu 10/921:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 30/7£558
Sun 6/920:25
PIT
-
LHR
1 stop10h 30m
Icelandair
Tue 22/921:25
LHR
-
PIT
1 stop26h 50m
Icelandair
Deal found 2/8£558
Fri 2/1020:25
PIT
-
LHR
1 stop10h 30m
Multiple Airlines
Wed 7/1013:05
LHR
-
PIT
3 stops30h 17m
Multiple Airlines
Deal found 30/7£562
Wed 9/920:25
PIT
-
LHR
1 stop18h 55m
Multiple Airlines
Tue 15/908:40
LHR
-
PIT
1 stop13h 53m
Multiple Airlines
Deal found 30/7£563

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 4 August 2026.

Round-trip from

£550

One-way from

£189

Popular in

December

Cheapest in

February

Average price

£691

Good round-trip deal

£616 or less
United Airlines
  • United Airlines
  • 23/11-26/11
  • 3 total stops
  • 48h 53m 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 (£45 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 August 2026
Search Deals
Price to beat on a round-trip 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 4 August 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 4/12

20:45-07:55

1 stop30h 10m

London Heathrow

Mon 7/12

07:30-20:34

2 stops18h 04m

£635

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Wed 11/11

11:01-07:50

1 stop15h 49m

London Heathrow

Fri 20/11

08:40-18:11

2 stops14h 31m

£643

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 1/11

14:02-16:20

2 stops21h 18m

London Heathrow

Mon 9/11

20:05-20:49

2 stops29h 44m

£650

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 18/1

14:05-07:15

2 stops12h 10m

London Heathrow

Thu 28/1

06:30-18:54

2 stops17h 24m

£653

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 4/10

09:07-06:30

1 stop16h 23m

London Heathrow

Wed 7/10

08:40-17:33

1 stop13h 53m

£665

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 24/8

06:00-20:45

1 stop9h 45m

London Heathrow

Sun 30/8

08:40-19:48

1 stop16h 08m

£665

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Mon 19/10

06:00-20:45

1 stop9h 45m

London Heathrow

Sun 25/10

09:20-20:00

1 stop14h 40m

£675

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Tue 25/8

12:53-06:30

1 stop12h 37m

London Heathrow

Wed 26/8

11:55-23:52

1 stop16h 57m

£691

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Fri 4/9

08:40-06:30

1 stop16h 50m

London Heathrow

Sun 20/9

11:55-23:44

1 stop16h 49m

£691

PittsburghLondon

PIT - LHR

PITLHR

Pittsburgh

Sun 18/10

12:20-08:50

2 stops15h 30m

London Heathrow

Tue 27/10

08:40-22:18

2 stops17h 38m

£699

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
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 4 August 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?

Airfare is typical for this route at the moment.

Pittsburgh to London Heathrow Airport flights typically cost between £538 and £737 in November.
The cheapest return price found within the last 5 days was £550 on United Airlines (23 Nov–26 Nov).

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 4 August 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
8,145 reviews
Check prices

Entertainment

6.5

Boarding

7.0

Food

6.4

Comfort

6.8

Overall

6.7

Crew

7.7

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
8,145 reviews
British Airways
6.7
Okay
8,145 reviews
Check prices

Entertainment

6.5

Boarding

7.0

Food

6.4

Comfort

6.8

Overall

6.7

Crew

7.7

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 12h 10m. United Airlines provides one of the quickest options available for as low as £653. 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 (72%), Aer Lingus (72%) or Finnair (72%) 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 £616. While the most popular route (Pittsburgh - London Heathrow) can be booked for £525 on average, our data indicates £781 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, 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
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Northampton
Watford
Swindon
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Poole

Browse thousands of different options on Cheapflights for your next trip

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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 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£397Average£499FlexibilityNo 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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