Cheap Flights from Pittsburgh International to London Heathrow

Compare Pittsburgh International to London Heathrow flight deals

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

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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 Rs207,864. Find the lowest prices on one-way and return tickets right here.

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.

Direct flights from Pittsburgh International to London Heathrow

Pittsburgh to London: Flight information

The things to know before you go.
Cheapest flight foundRs74,682
Cheapest month to flyOctober
Average flight time7 hrs, 22 mins
Most popular airlineAer Lingus
Average flights per week46

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 Rs194,927. 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 July 2026, there are 46 flights per week flying from Pittsburgh International to London Heathrow.
The cheapest month to fly from Pittsburgh International to London Heathrow is usually October.
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 Friday, 2 October 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 and 26ºC. 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 and 9ºC 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.

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