Cheap Flights from Baltimore (BWI) to London (LHR)

View AU$590 flight on Wed, 8 Oct. 2025Opens in a new window

Popular airlines from Baltimore Washington International Airport (BWI) to Heathrow Airport (LHR)

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Cheap Flights from Baltimore (BWI) to London (LHR)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sun, 12 Oct. - Sun, 19 Oct.
BWI
Baltimore
LHR
London
AU$882 Return, found 3 days ago
AU$882
Return
found 3 days ago
Select Icelandair flight, departing Sun, 12 Oct. from Baltimore to London, returning Sun, 19 Oct., priced at AU$882 found 3 days ago
Delta
Sun, 14 Sep. - Tue, 23 Sep.
BWI
Baltimore
LHR
London
AU$1,009 Return, found 5 days ago
AU$1,009
Return
found 5 days ago
Select Delta flight, departing Sun, 14 Sep. from Baltimore to London, returning Tue, 23 Sep., priced at AU$1,009 found 5 days ago
Delta
Sun, 14 Sep. - Tue, 23 Sep.
BWI
Baltimore
LHR
London
AU$1,021 Return, found 5 days ago
AU$1,021
Return
found 5 days ago
Select Delta flight, departing Sun, 14 Sep. from Baltimore to London, returning Tue, 23 Sep., priced at AU$1,021 found 5 days ago
Icelandair
Thu, 20 Nov. - Mon, 24 Nov.
BWI
Baltimore
LHR
London
AU$1,039 Return, found 6 days ago
AU$1,039
Return
found 6 days ago
Select Icelandair flight, departing Thu, 20 Nov. from Baltimore to London, returning Mon, 24 Nov., priced at AU$1,039 found 6 days ago
Icelandair
Thu, 20 Nov. - Mon, 24 Nov.
BWI
Baltimore
LHR
London
AU$1,042 Return, found 6 days ago
AU$1,042
Return
found 6 days ago
Select Icelandair flight, departing Thu, 20 Nov. from Baltimore to London, returning Mon, 24 Nov., priced at AU$1,042 found 6 days ago
Icelandair
Sun, 14 Sep. - Tue, 23 Sep.
BWI
Baltimore
LHR
London
AU$1,054 Return, found 5 days ago
AU$1,054
Return
found 5 days ago
Select Icelandair flight, departing Sun, 14 Sep. from Baltimore to London, returning Tue, 23 Sep., priced at AU$1,054 found 5 days ago
Icelandair
Fri, 26 Dec. - Sun, 11 Jan.
BWI
Baltimore
LHR
London
AU$1,073 Return, found 17 hours ago
AU$1,073
Return
found 17 hours ago
Select Icelandair flight, departing Fri, 26 Dec. from Baltimore to London, returning Sun, 11 Jan., priced at AU$1,073 found 17 hours ago
British Airways
Wed, 15 Oct. - Sat, 25 Oct.
BWI
Baltimore
LHR
London
AU$1,103 Return, found 6 days ago
AU$1,103
Return
found 6 days ago
Select British Airways flight, departing Wed, 15 Oct. from Baltimore to London, returning Sat, 25 Oct., priced at AU$1,103 found 6 days ago
American Airlines
Sun, 14 Sep. - Tue, 23 Sep.
BWI
Baltimore
LHR
London
AU$1,298 Return, found 5 days ago
AU$1,298
Return
found 5 days ago
Select American Airlines flight, departing Sun, 14 Sep. from Baltimore to London, returning Tue, 23 Sep., priced at AU$1,298 found 5 days ago
United
Mon, 15 Dec. - Tue, 6 Jan.
BWI
Baltimore
LHR
London
AU$1,315 Return, found 1 day ago
AU$1,315
Return
found 1 day ago
Select United flight, departing Mon, 15 Dec. from Baltimore to London, returning Tue, 6 Jan., priced at AU$1,315 found 1 day ago

Find the cheapest month to fly from Baltimore (BWI) to London (LHR)

February is typically the cheapest month to fly

From AU$779 - AU$1,452 per traveller.

Graph displaying average flight prices per month

Flight from Baltimore to London route information
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Scandinavian Airlines, United, Virgin Atlantic
Return price
AU$881
Distance
5799 km
Average flight time
7 hours 15 mins

Your quick guide to flights from Baltimore to London

Pick up great flights from Baltimore to London

With Expedia, you have your pick of 5 flights a day with 20 airlines covering flights from Baltimore to London. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Baltimore to London that take around 7 hours.

Find cheap flights from Baltimore to London

From the great flight deals with prices currently ranging from AU$882 to AU$1,315, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Baltimore to London around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to London is normally in October.

Reasons to book your flight from Baltimore to London with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Baltimore to London across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to London right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to LHR?
Start packing your bags, because round-trip flights between BWI Airport and Heathrow Airport start from AU$882. That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BWI Marshall to Heathrow Airport?
Most flights can be cancelled online, but every air carrier has different terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from BWI to LHR that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BWI to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport?
With a flight distance of 5 800 kilometres between Baltimore and Hounslow, this is a long trip. Be sure to keep well hydrated and take a short walk down the aisle from time to time.
Which airlines fly direct from BWI to Heathrow Airport?
Flying straight from BWI Marshall to LHR is a cinch with British Airways (BA). This popular airline offers 21 flights each month.
Are BWI Airport to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to LHR at the last minute could be your ticket to a fantastic deal. However, it could end up costing a great deal more! If you'd rather play it safe, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

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