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550 € Cheap Flights from Baltimore Washington International to London Heathrow

Compare Baltimore Washington 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 Baltimore Washington International to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to London Heathrow Airport? If you want to travel next month, return fares start from 571 €. Find the lowest prices on one-way and return tickets right here.
London.550 € per passenger.Departing Mon, 5 Oct, returning Tue, 13 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 5 Oct, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 13 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 550 €, select.
London.556 € per passenger.Departing Sat, 24 Oct, returning Sun, 1 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sat, 24 Oct, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Sun, 1 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 556 €, select.
London.571 € per passenger.Departing Mon, 21 Sep, returning Tue, 29 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 21 Sep, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 29 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 571 €, select.
London.598 € per passenger.Departing Fri, 5 Feb, returning Tue, 9 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Fri, 5 Feb, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 9 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.598 € per passenger.Departing Sun, 28 Feb, returning Thu, 4 Mar.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sun, 28 Feb, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Thu, 4 Mar, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.598 € per passenger.Departing Mon, 4 Jan, returning Thu, 14 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 4 Jan, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Thu, 14 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.598 € per passenger.Departing Wed, 30 Dec, returning Wed, 13 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Wed, 30 Dec, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Wed, 13 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.598 € per passenger.Departing Wed, 2 Dec, returning Wed, 9 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Wed, 2 Dec, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Wed, 9 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.598 € per passenger.Departing Fri, 27 Nov, returning Fri, 4 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Fri, 27 Nov, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Fri, 4 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.598 € per passenger.Departing Sun, 1 Nov, returning Sat, 7 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sun, 1 Nov, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Sat, 7 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 598 €, select.
London.599 € per passenger.Departing Wed, 30 Sep, returning Tue, 6 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Wed, 30 Sep, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 6 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 599 €, select.
London.600 € per passenger.Departing Thu, 1 Oct, returning Sun, 28 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Thu, 1 Oct, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Sun, 28 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 600 €, select.
London.601 € per passenger.Departing Sun, 1 Nov, returning Wed, 3 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sun, 1 Nov, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Wed, 3 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 601 €, select.
London.604 € per passenger.Departing Sat, 10 Oct, returning Sat, 5 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sat, 10 Oct, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Sat, 5 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 604 €, select.
London.604 € per passenger.Departing Mon, 30 Nov, returning Fri, 15 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 30 Nov, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Fri, 15 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From 604 €, select.
London.605 € per passenger.Departing Tue, 26 Jan, returning Tue, 9 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Tue, 26 Jan, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 9 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 605 €, select.

Find the cheapest month to fly from Baltimore Washington International to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to London Heathrow flights are currently cheapest in October.
Aug
from 719 €
Sep
from 571 €
Oct
from 550 €
Nov
from 598 €
Dec
from 598 €
Jan
from 598 €
Feb
from 598 €
Mar
from 629 €
Apr
from 637 €
May
from 677 €
Jun
from 895 €
Jul
from 895 €

Direct flights from Baltimore Washington International to London Heathrow

Baltimore Washington International to London Heathrow: Alternative routes

Compare routes from Baltimore Washington 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 743 €
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London Heathrow

23km from central London
from 550 €
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London Gatwick

40km from central London
Cheapest
from 491 €
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London Luton

45km from central London
from 586 €
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London Stansted

49km from central London
from 566 €
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London Southend

57km from central London
from 660 €
Search flights

Washington D.C. to London: Flight information

The things to know before you go.
Cheapest flight found550 €
Cheapest month to flyOctober
Average flight time7 hrs, 17 mins
Most popular airlineAmerican Airlines
Average flights per week43

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

The best price we found for a return flight from Baltimore Washington International to London Heathrow is 550 €. 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 17 minutes is the average flight time from Baltimore Washington International to London Heathrow.
American Airlines, British Airways and Finnair fly direct from Baltimore Washington International to London Heathrow.
As of August 2026, there are 43 flights per week flying from Baltimore Washington International to London Heathrow.
The cheapest month to fly from Baltimore Washington 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 Baltimore Washington International Airport to London Heathrow Airport on Monday, 5 October 2026.
Yes – the average flight time is 7 hours and 17 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 British Airways offer the cheapest flight tickets to London Heathrow.

Flying from Baltimore Washington International Airport (BWI) to London Heathrow Airport (LHR): what you need to know

  • Around 7 hours 15 minutes is how long you can expect to be travelling on a direct flight from Baltimore Washington International Airport to London Heathrow Airport.

  • The timezone in London is UTC+0, which is five hours ahead of Washington DC.

  • Flights from BWI to LHR start at 20:30 — the first with British Airways. The last service of the day is at 21:30 with British Airways. Overall, there are seven weekly Baltimore Washington International Airport to London Heathrow Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Make sure you're at the airport on time to board your BWI to LHR flight.

  • Be prepared for bigger queues in popular months such as July. Arriving up to four hours in advance for international flights and two hours for domestic departures will give you ample time for security and boarding.

  • British Airways is your gateway to discovering London (and maybe even some other great parts of the United Kingdom!). Check out the direct flights from Baltimore Washington International Airport to London Heathrow Airport offered by this popular airline.

  • The majority of passengers choose to fly with British Airways on this route.

  • British Airways is a leader in on-time performance for BWI to LHR flights, with 82.69% of services landing on schedule.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Baltimore Washington International Airport to London Heathrow Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to visit your chosen city. Top stopovers between BWI and LHR include:

    • New York John F. Kennedy Airport

    • Boston Logan International Airport

    • Raleigh / Durham Airport

Handy information about Baltimore Washington International Airport (BWI)

  • Of all flights departing from Baltimore Washington International Airport, 77% land on schedule at their destination.

  • Central Washington DC to Baltimore Washington International Airport is approximately 48 kilometres. Depending on traffic, it'll take you about 40 minutes to get there if you're ride-sharing, catching a taxi or driving.

  • Planning to catch public transport? Expect a trip time of around 50 minutes.

  • Get your journey off to a relaxed start by staying near BWI. Whether you've booked an early flight from Baltimore Washington International Airport to London Heathrow Airport or just don't want to be rushed, these stays are ideal:

Arriving at London Heathrow Airport (LHR)

When to fly to London Heathrow Airport (LHR)

  • The quietest month for a flight from Baltimore Washington International Airport to London Heathrow Airport is March, while July is the most popular. Pick the ideal time to visit London based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Book your flight from Baltimore Washington International Airport to London Heathrow Airport for July if you want to go to London during its warmest month. Expect temperatures of between 11ºC (52ºF) and 26ºC (79ºF).

  • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Look for cheap tickets from BWI to LHR sometime then if you want to travel when it's cooler.

Explore more of the United Kingdom

  • London is easy to fall in love with, but there are so many other corners of the United Kingdom you'll want to see. About 257 kilometres north-west of London, a trip to Manchester will fill your itinerary to the brim. Start with leading sights like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • Around 161 kilometres north-west of London, Birmingham is another favourite stop in the United Kingdom. No visit is complete without checking out Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

More travel options

Plan the rest of your trip from Washington D.C. to London

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