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Cheap Flights from Pittsburgh (PIT) to London (LHR)

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      Travellers and cabin class, 1 Adult, Economy
      Aer Lingus
      Finnair
      American Airlines
      Iberia
      Malaysia Airlines
      British Airways

      Compare Pittsburgh International to London Heathrow flight deals

      Find the cheapest month or even day of the year to fly to London Heathrow

      Book the best London Heathrow fare with no extra fees

      Flight deals from Pittsburgh International to London Heathrow

      Looking for a cheap last-minute deal or the best return flight from Pittsburgh International Airport to London Heathrow Airport? If you want to travel next month, return fares start from $1,066. Find the lowest prices on one-way and return tickets right here.
      London.$1,038 per passenger.Departing Sun, 27 Sep, returning Sun, 4 Oct.Return flight with Icelandair and Scandinavian Airlines.Outbound indirect flight with Icelandair, departs from Pittsburgh International on Sun, 27 Sep, arriving in London Heathrow.Inbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Sun, 4 Oct, arriving in Pittsburgh International.Price includes taxes and charges.From $1,038, select.
      London.$1,042 per passenger.Departing Wed, 7 Oct, returning Tue, 13 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Pittsburgh International on Wed, 7 Oct, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 13 Oct, arriving in Pittsburgh International.Price includes taxes and charges.From $1,042, select.
      London.$1,057 per passenger.Departing Sun, 15 Nov, returning Thu, 19 Nov.Return flight with Air Canada and Lufthansa.Outbound indirect flight with Air Canada, departs from Pittsburgh International on Sun, 15 Nov, arriving in London Heathrow.Inbound indirect flight with Lufthansa, departs from London Heathrow on Thu, 19 Nov, arriving in Pittsburgh International.Price includes taxes and charges.From $1,057, select.
      London.$1,066 per passenger.Departing Sun, 6 Sep, returning Tue, 15 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Pittsburgh International on Sun, 6 Sep, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 15 Sep, arriving in Pittsburgh International.Price includes taxes and charges.From $1,066, select.
      London.$1,080 per passenger.Departing Mon, 7 Dec, returning Thu, 10 Dec.Return flight with Air Canada and Lufthansa.Outbound indirect flight with Air Canada, departs from Pittsburgh International on Mon, 7 Dec, arriving in London Heathrow.Inbound indirect flight with Lufthansa, departs from London Heathrow on Thu, 10 Dec, arriving in Pittsburgh International.Price includes taxes and charges.From $1,080, select.
      London.$1,096 per passenger.Departing Sat, 6 Mar, returning Wed, 10 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Pittsburgh International on Sat, 6 Mar, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Wed, 10 Mar, arriving in Pittsburgh International.Price includes taxes and charges.From $1,096, select.
      London.$1,192 per passenger.Departing Fri, 14 May, returning Sun, 23 May.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Pittsburgh International on Fri, 14 May, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Sun, 23 May, arriving in Pittsburgh International.Price includes taxes and charges.From $1,192, select.
      London.$1,213 per passenger.Departing Wed, 11 Nov, returning Wed, 9 Dec.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Pittsburgh International on Wed, 11 Nov, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 9 Dec, arriving in Pittsburgh International.Price includes taxes and charges.From $1,213, select.
      London.$1,217 per passenger.Departing Wed, 27 Jan, returning Wed, 10 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Pittsburgh International on Wed, 27 Jan, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 10 Feb, arriving in Pittsburgh International.Price includes taxes and charges.From $1,217, select.
      London.$1,222 per passenger.Departing Wed, 6 Jan, returning Mon, 11 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Pittsburgh International on Wed, 6 Jan, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Mon, 11 Jan, arriving in Pittsburgh International.Price includes taxes and charges.From $1,222, select.
      London.$1,223 per passenger.Departing Tue, 23 Feb, returning Tue, 9 Mar.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Pittsburgh International on Tue, 23 Feb, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 9 Mar, arriving in Pittsburgh International.Price includes taxes and charges.From $1,223, select.
      London.$1,225 per passenger.Departing Tue, 20 Apr, returning Tue, 27 Apr.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Pittsburgh International on Tue, 20 Apr, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 27 Apr, arriving in Pittsburgh International.Price includes taxes and charges.From $1,225, select.
      London.$1,226 per passenger.Departing Tue, 30 Mar, returning Tue, 6 Apr.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Pittsburgh International on Tue, 30 Mar, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 6 Apr, arriving in Pittsburgh International.Price includes taxes and charges.From $1,226, select.
      London.$1,242 per passenger.Departing Mon, 8 Feb, returning Mon, 22 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Pittsburgh International on Mon, 8 Feb, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Mon, 22 Feb, arriving in Pittsburgh International.Price includes taxes and charges.From $1,242, select.
      London.$1,242 per passenger.Departing Tue, 27 Apr, returning Tue, 11 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Pittsburgh International on Tue, 27 Apr, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Tue, 11 May, arriving in Pittsburgh International.Price includes taxes and charges.From $1,242, select.
      London.$1,244 per passenger.Departing Wed, 25 Nov, returning Fri, 4 Dec.Return flight with Finnair.Outbound direct flight with Finnair departs from Pittsburgh International on Wed, 25 Nov, arriving in London Heathrow.Inbound direct flight with Finnair departs from London Heathrow on Fri, 4 Dec, arriving in Pittsburgh International.Price includes taxes and charges.From $1,244, select.

      Find the cheapest month to fly from Pittsburgh International to London Heathrow

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Pittsburgh International to London Heathrow flights are currently cheapest in October.
      Aug
      from $1,477
      Sep
      from $1,066
      Oct
      from $1,042
      Nov
      from $1,057
      Dec
      from $1,080
      Jan
      from $1,221
      Feb
      from $1,241
      Mar
      from $1,096
      Apr
      from $1,225
      May
      from $1,192
      Jun
      from $1,596
      Jul
      from $1,386

      Direct flights from Pittsburgh International to London Heathrow

      Aer Lingus
      American Airlines
      British Airways
      Finnair
      Iberia
      Malaysia Airlines

      Pittsburgh International to London Heathrow: Alternative routes

      Compare routes from Pittsburgh International to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

      London City

      12km from central London
      Closest
      from $1,338
      Search flights

      London Heathrow

      23km from central London
      from $1,038
      Search flights

      London Gatwick

      40km from central London
      from $1,025
      Search flights

      London Luton

      45km from central London
      from $1,072
      Search flights

      London Stansted

      49km from central London
      Cheapest
      from $903
      Search flights

      London Southend

      57km from central London
      Search flights

      Pittsburgh to London: Flight information

      The things to know before you go.
      Cheapest flight found$1,038
      Cheapest month to flySeptember
      Average flight time7 hrs, 22 mins
      Most popular airlineAer Lingus
      Average flights per week39

      Finding cheap flights from Pittsburgh International to London Heathrow: Frequently asked questions

      The best price we found for a return flight from Pittsburgh International to London Heathrow is $1,038. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      7 hours and 22 minutes is the average flight time from Pittsburgh International to London Heathrow.
      Aer Lingus, Finnair and American Airlines fly direct from Pittsburgh International to London Heathrow.
      As of August 2026, there are 39 flights per week flying from Pittsburgh International to London Heathrow.
      The cheapest month to fly from Pittsburgh International to London Heathrow is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Pittsburgh International Airport to London Heathrow Airport on Sunday, 27 September 2026.
      Yes – the average flight time is 7 hours and 22 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Icelandair and Finnair offer the cheapest flight tickets to London Heathrow.

      Flying from Pittsburgh International Airport (PIT) to London Heathrow Airport (LHR): what you need to know

      • Around 7 hours 20 minutes is how long you'll be travelling on a direct flight from Pittsburgh International Airport to London Heathrow Airport.

      • London is five hours ahead of Pittsburgh and observes the UTC+0 timezone.

      • Flights from PIT to LHR start at 21:25 — the first with British Airways. The last service of the day is at 22:45 with British Airways. Overall, there are six weekly Pittsburgh International Airport to London Heathrow Airport flights.

      • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to board your PIT to LHR flight.

      • Travelling during a peak month such as July? Public holidays and other high seasons can lead to longer lines at security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

      • Flying into London (and then seeing more of the United Kingdom!) is a snap with British Airways. This popular carrier offers direct flights from Pittsburgh International Airport to London Heathrow Airport.

      • British Airways is the airline most travellers choose to fly with on this route.

      • Among carriers operating PIT to LHR flights, British Airways is the most consistent for on-time landings.

      • If you want to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from Pittsburgh International Airport to London Heathrow Airport. Here are the top stopovers between PIT and LHR:

        • New York John F. Kennedy Airport

        • Boston Logan International Airport

        • Washington Dulles Airport

      Handy information about Pittsburgh International Airport (PIT)

      • The address for PIT is 1000 Airport Boulevard.

      • 77% of flights departing from Pittsburgh International Airport land at their destination on schedule.

      • Pittsburgh International Airport is around 32 kilometres from central Pittsburgh. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 30 minutes or so to get there, depending on the traffic.

      • Catching public transport? Expect a journey time of around 45 minutes.

      • Searching for a handy hotel close to PIT? If you're boarding an early flight from Pittsburgh International Airport to London Heathrow Airport, these accommodation options will have you moments from your check-in counter:

      Arriving at London Heathrow Airport (LHR)

      When to fly to London Heathrow Airport (LHR)

      • It's time to work out your dates for your flight from Pittsburgh International Airport to London Heathrow Airport. July is the busiest month to head to London. If you like a quieter vibe, go in March.

      • The warmest month in London is July, with the temperature ranging between 11ºC (52ºF) and 26ºC (79ºF). Lock in your flights from Pittsburgh International Airport to London Heathrow Airport in this month if this is the kind of weather you like.

      • Search for cheap tickets from PIT to LHR in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

      Explore more of the United Kingdom

      • Manchester is just one of the many cities in the United Kingdom waiting to be discovered once you've seen London. Around 257 kilometres away to the north-west, its best attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

      • If you're looking to explore another major destination in the United Kingdom, head for Birmingham, about 161 kilometres north-west of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are among its highlights.

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      Plan the rest of your trip from Pittsburgh to London

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.