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$243+ Cheap flights from Baltimore (BWI) to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LON
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Find cheap flights from Baltimore to London with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Baltimore/Washington to London are usually found in January or September, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Baltimore to London

Cheapest flights from Baltimore to London
Explore the most affordable flight options available from Baltimore to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.

This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:30 pm
BWI
-
STN
2 stops22h 50m
Multiple Airlines
Tue 5/197:05 am
STN
-
BWI
2 stops17h 20m
Multiple Airlines
Deal found 4/15$646
This deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:30 pm
BWI
-
LGW
1 stop10h 15m
Icelandair
Tue 5/121:00 pm
LGW
-
BWI
1 stop11h 25m
Icelandair
Deal found 4/13$659
This Mytrip deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:30 pm
BWI
-
STN
2 stops18h 25m
Multiple Airlines
Thu 4/307:00 am
STN
-
BWI
2 stops17h 25m
Multiple Airlines
Deal found 4/13$662
This Mytrip deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:20 pm
BWI
-
STN
2 stops20h 10m
Multiple Airlines
Tue 5/197:10 am
STN
-
BWI
2 stops20h 05m
Multiple Airlines
Deal found 4/13$686
This Mytrip deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:20 pm
BWI
-
STN
2 stops20h 10m
Multiple Airlines
Wed 5/203:00 pm
STN
-
BWI
2 stops33h 25m
Multiple Airlines
Deal found 4/13$696
This CrystalTravel deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:30 pm
BWI
-
LGW
1 stop13h 10m
Icelandair
Tue 10/133:40 pm
LGW
-
BWI
1 stop11h 35m
Icelandair
Deal found 4/12$699
This Gotogate deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:30 pm
BWI
-
LHR
1 stop18h 50m
Icelandair
Tue 10/61:05 pm
LHR
-
BWI
1 stop14h 10m
Icelandair
Deal found 4/14$700
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/133:26 pm
BWI
-
LGW
1 stop13h 34m
Multiple Airlines
Tue 6/22:00 pm
LGW
-
BWI
2 stops22h 43m
Multiple Airlines
Deal found 4/16$700
This Mytrip deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:30 pm
BWI
-
STN
2 stops22h 40m
Multiple Airlines
Tue 5/1212:45 pm
STN
-
BWI
2 stops35h 40m
Multiple Airlines
Deal found 4/14$702
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:30 pm
BWI
-
STN
2 stops21h 50m
Multiple Airlines
Tue 5/1212:45 pm
STN
-
BWI
2 stops35h 40m
Multiple Airlines
Deal found 4/15$704
This Ticket deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:30 pm
BWI
-
LHR
1 stop10h 25m
Icelandair
Tue 5/129:25 pm
LHR
-
BWI
1 stop27h 00m
Icelandair
Deal found 4/16$705
This Mytrip deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:30 pm
BWI
-
STN
2 stops23h 00m
Multiple Airlines
Tue 5/57:10 am
STN
-
BWI
2 stops17h 15m
Multiple Airlines
Deal found 4/13$705

Find flight deals from Baltimore to London

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$646
(Mytrip)

One-way from

$243
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$734
Provider with most accurate pricing for Baltimore/Washington-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-London (LON) flights.
Search Deals
From Baltimore/Washington to London (LON)
Search Deals
One-way flight from Baltimore/Washington to London (LON)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from Baltimore to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 4/30

8:30 pm-12:30 am

2 stops23h 00m

London Stansted

Tue 5/5

7:10 am-7:25 pm

2 stops17h 15m

$705

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 4/30

8:30 pm-10:55 pm

2 stops21h 25m

London Stansted

Wed 5/6

7:00 am-7:25 pm

2 stops17h 25m

$725

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Wed 8/19

8:30 pm-11:45 am

1 stop10h 15m

London Gatwick

Sun 8/23

3:40 pm-10:15 pm

1 stop11h 35m

$779

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Sun 8/23

11:20 pm-11:45 am

1 stop31h 25m

London Gatwick

Sat 9/5

3:40 pm-7:25 pm

1 stop32h 45m

$784

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 6/11

8:30 pm-12:30 am

2 stops23h 00m

London Stansted

Tue 6/16

8:30 am-7:25 pm

2 stops15h 55m

$806

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Wed 4/29

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Mon 5/4

6:30 am-7:25 pm

2 stops17h 55m

$809

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Tue 5/5

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Wed 5/13

3:40 pm-7:25 pm

1 stop32h 45m

$830

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Fri 5/29

8:30 pm-12:50 am

2 stops23h 20m

London Stansted

Fri 6/5

6:35 am-7:25 pm

2 stops17h 50m

$847

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 4/30

6:35 am-10:55 pm

3 stops35h 20m

London Stansted

Tue 6/2

8:00 pm-7:25 pm

2 stops28h 25m

$855

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Wed 5/13

11:50 am-6:25 am

1 stop13h 35m

London Heathrow

Tue 5/19

11:30 am-11:17 pm

2 stops16h 47m

$873

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Compare providers for flights from Baltimore to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to London in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to London

Have a flexible travel schedule? Discover the best time to fly to London from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to London

How far ahead should I book a flight from Baltimore to London?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to London. Price data was last updated on April 10, 2026.

The price you pay for your flight from Baltimore to London may vary depending on when you book. For the best chance of a lower fare, look to book 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Baltimore to London?

Currently, September is the cheapest month in which you can book a flight from Baltimore to London (average of $221). Flying from Baltimore to London in June is currently the most expensive (average of $650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to LON?

Find hourly flight availability from Baltimore to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to London as you normally would.

How much does it cost to fly round-trip from Baltimore to London?

What’s the top layover airport for flights from Baltimore to London?

Share of 1-stop round-trip flights from Baltimore to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 64% of 1-stop itineraries from Baltimore to London on Cheapflights.

What’s the cheapest layover airport for flights from Baltimore to London?

Average round-trip fare for 1-stop flights from Baltimore to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $532.

What’s the fastest layover option from Baltimore to London?

Shortest average travel time for 1-stop one-way flights from Baltimore to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 23m.

Which airport typically offers the quickest layover for flights from Baltimore to London?

Average layover duration for 1-stop one-way flights from Baltimore to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 25m.

The best insider tips for Baltimore to London flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to London trip
Our travel experts
Emily Zemler

Emily Zemler

Expert on BWI

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated April 17, 2026.
Peruse reviews from past customers who have flown with American Airlines,Icelandair, andPLAY from Baltimore to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,593 reviews

Crew

7.9

Entertainment

6.9

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
American Airlines
7.1
Good
11,593 reviews
American Airlines
7.1
Good
11,593 reviews

Crew

7.9

Entertainment

6.9

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
Icelandair
7.0
Good
634 reviews
American Airlines
7.1
Good
11,593 reviews

Crew

7.9

Entertainment

6.9

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
PLAY
7.0
Good
American Airlines
7.1
Good
11,593 reviews

Crew

7.9

Entertainment

6.9

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
Iberia
7.0
Good
3,182 reviews
American Airlines
7.1
Good
11,593 reviews

Crew

7.9

Entertainment

6.9

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
British Airways
6.7
Okay
7,889 reviews
American Airlines
7.1
Good
11,593 reviews

Crew

7.9

Entertainment

6.9

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Baltimore to London?

    Located just 8.5 mi from the city center, Baltimore/Washington is the airport most travelers will use when flying to London from Baltimore. Booking flights from Baltimore/Washington (BWI) to London should be relatively easy as there are 4 daily outbound flights to London from 9 different airlines.

  • How long is the flight from Baltimore to London?

    A quick flight from Baltimore to London can take about 7h 20m. Icelandair provides one of the quickest options available for as low as $890. The distance from Baltimore to London is about 3622 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Baltimore to London round-trip?

    Cheapflights users have booked flights from Baltimore to London round-trip from $428. Other airlines that can offer you cheap pricing are United Airlines, from $462, and Virgin Atlantic, from $471. Users have found that PLAY is 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Baltimore to London one-way?

    The cheapest airlines for a one-way flight from Baltimore to London are Icelandair ($202), Iberia ($363), and British Airways ($374).

  • What are the most popular routes from Baltimore to London?

    Most travelers choose Baltimore/Washington - London Heathrow, Baltimore/Washington - London Gatwick or Baltimore/Washington - London Luton when deciding on the best route from Baltimore to London.

  • What are the most reliable airlines from Baltimore to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Baltimore to London on time: American Airlines (73%), Aer Lingus (73%), Finnair (73%).

  • What are the cheapest flights from Baltimore to London?

    While on average a flight from Baltimore to London is generally $1,428, our data shows the cheapest flight currently is $403. When looking at the most popular route, (Baltimore/Washington - London Heathrow), you can expect to pay $706 for that flight.

  • Can I find deals for flights from Baltimore to London that include hotel bookings?

    Yes. In addition to deals on Baltimore to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to London.

  • Can I find deals for business class flights from Baltimore to London?

    Yes. Cheapflights offers flight deals from Baltimore to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to London?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to London (average of $221). Flying from Baltimore to London in June is currently the most expensive (average of $650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton
Stansted

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Baltimore to London

Discover the top 9 airlines that operate flights from Baltimore to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$428Average$468FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$462Average$886FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$471Average$709FlexibilityNo cancel feeOn-time72%
IcelandairCheapest$481Average$645FlexibilityNo cancel feeOn-time76%
FinnairCheapest$591Average$767FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$594Average$821FlexibilityNo cancel feeOn-time70%
DeltaCheapest$598Average$867FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$602Average$849FlexibilityNo cancel feeOn-time71%
IberiaCheapest$603Average$818FlexibilityNo cancel feeOn-time77%

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