$384 Cheap Flights from Baltimore (BWI) to London (LHR)

View $384 flight on Sun, Nov 30, 2025Opens in a new window

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

Cheap Flights from Baltimore to London (BWI-LHR)

Prices were available within the past 7 days and start at $384 for one-way flights and $500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Jul 27 - Fri, Aug 7
BWI
Baltimore
LHR
London
$500 Roundtrip, found 2 days ago
$500
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jul 27 from Baltimore to London, returning Fri, Aug 7, priced at $500 found 2 days ago
British Airways
Mon, Jul 27 - Fri, Aug 7
BWI
Baltimore
LHR
London
$500 Roundtrip, found 2 days ago
$500
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Jul 27 from Baltimore to London, returning Fri, Aug 7, priced at $500 found 2 days ago
American Airlines
Mon, Jul 27 - Fri, Aug 7
BWI
Baltimore
LHR
London
$546 Roundtrip, found 2 days ago
$546
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jul 27 from Baltimore to London, returning Fri, Aug 7, priced at $546 found 2 days ago
British Airways
Mon, Jul 27 - Fri, Aug 7
BWI
Baltimore
LHR
London
$550 Roundtrip, found 2 days ago
$550
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Jul 27 from Baltimore to London, returning Fri, Aug 7, priced at $550 found 2 days ago
American Airlines
Mon, Jul 27 - Fri, Aug 7
BWI
Baltimore
LHR
London
$558 Roundtrip, found 2 days ago
$558
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jul 27 from Baltimore to London, returning Fri, Aug 7, priced at $558 found 2 days ago
Icelandair
Mon, Feb 16 - Sun, Feb 22
BWI
Baltimore
LHR
London
$558 Roundtrip, just found
$558
Roundtrip
just found
Select Icelandair flight, departing Mon, Feb 16 from Baltimore to London, returning Sun, Feb 22, priced at $558 just found
Icelandair
Mon, Mar 16 - Mon, Mar 23
BWI
Baltimore
LHR
London
$560 Roundtrip, just found
$560
Roundtrip
just found
Select Icelandair flight, departing Mon, Mar 16 from Baltimore to London, returning Mon, Mar 23, priced at $560 just found
Icelandair
Mon, Sep 29 - Wed, Oct 15
BWI
Baltimore
LHR
London
$565 Roundtrip, found 9 hours ago
$565
Roundtrip
found 9 hours ago
Select Icelandair flight, departing Mon, Sep 29 from Baltimore to London, returning Wed, Oct 15, priced at $565 found 9 hours ago
Scandinavian Airlines
Sat, Oct 25 - Mon, Oct 27
BWI
Baltimore
LHR
London
$600 Roundtrip, found 17 hours ago
$600
Roundtrip
found 17 hours ago
Select Scandinavian Airlines flight, departing Sat, Oct 25 from Baltimore to London, returning Mon, Oct 27, priced at $600 found 17 hours ago
Virgin Atlantic
Wed, Oct 15 - Mon, Dec 8
BWI
Baltimore
LHR
London
$630 Roundtrip, found 3 hours ago
$630
Roundtrip
found 3 hours ago
Select Virgin Atlantic flight, departing Wed, Oct 15 from Baltimore to London, returning Mon, Dec 8, priced at $630 found 3 hours ago

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

January is typically the cheapest month to fly

From $506 - $943 per traveler.

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR) cost?
Get a cheap one-way flight from $384 or cheap return flight from $500 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
The cheapest month to fly from BWI to LHR is July, when demand is low. Off-peak months are generally when airlines offer better prices between these airports.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
When heading out of Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you can get on a direct flight to Heathrow Airport (LHR) with British Airways.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BWI to LHR flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
On average, Baltimore Washington Intl. Thurgood Marshall Airport (BWI) has 6 direct flights to Heathrow Airport (LHR) each week. For more options, use Expedia's filter tool to find flights with a layover. Squeeze in a quick visit to another location or just break up your journey.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
The 8 PM departures from BWI to LHR see the highest demand. They can also be more expensive. If you're looking to save, pick a less crowded time to fly.
What day of the week has the most flights from BWI to LHR?
Depart on a Friday if you're after the largest selection of flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
Hop on the earliest flight at around 8:30PM UTC-5, leaving from Baltimore Washington Intl. Thurgood Marshall Airport (BWI). You'll be in the air for about 7h 10m, coming in to land at Heathrow Airport (LHR) at approximately 8:40AM UTC+0.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
It takes about 7 hours and 10 minutes to fly the 3,600 mi from BWI to LHR.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
To avoid possible delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR) route, aim to travel before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for London from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Browse your flight options from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR). This is the only London airport you can fly into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR) last-minute?
Last-minute fares from BWI to LHR are generally more expensive. For the best prices, start looking for flights well in advance. That being said, if you're flexible with your travel dates, you may score a cheap ticket right before your journey.
Is it cheaper to book a BWI to LHR flight and hotel package?
You'll typically save money by securing a BWI to LHR flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Heathrow Airport (LHR)?
You can usually reschedule or cancel your BWI to LHR flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel 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
Roundtrip price
$500
Distance
3624 mi
Average flight time
7 hours 15 mins

Book with confidence

Book with confidence

Baltimore to London Flights

The cheapest times to fly from Baltimore to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to London are during the month of July. You can find some of the cheapest flights from Baltimore to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to London

Sunday is one of the best days to book for cheap flights from Baltimore to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $384 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Baltimore to London Flights

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*Available to One Key members.