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Cheap flights from Baltimore to London Heathrow Airport from £167

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LHR
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from Baltimore/Washington to London Heathrow are usually found in January or November, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Baltimore to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Heathrow (LHR). 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 15 August 2025.

Round-trip from

£393

One-way from

£167

Popular in

June

Cheapest in

January

Average price

£574
United Airlines
  • United Airlines
  • 10/9-17/9
  • 3 total stops
  • 50h 09m total
  • Baltimore to London
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26/9
  • 26/9
  • 2 total stops
  • 20h 59m total
  • Baltimore to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Baltimore to Heathrow

Cheapest flights from Baltimore to Heathrow
Explore the most affordable flight options available from Baltimore to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Wed 10/910:51BWI - LHR
1 stop19h 54mUnited Airlines
Wed 17/908:40LHR - BWI
2 stops30h 15mUnited Airlines
Deal found 13/8£393
Mon 10/1119:40BWI - LHR
1 stop18h 50mIcelandair
Mon 17/1112:15LHR - BWI
1 stop11h 25mIcelandair
Deal found 13/8£398
Fri 5/1219:40BWI - LHR
1 stop18h 50mIcelandair
Wed 10/1212:15LHR - BWI
1 stop11h 25mIcelandair
Deal found 12/8£399
Sun 5/1020:30BWI - LHR
1 stop10h 25mIcelandair
Mon 13/1021:25LHR - BWI
1 stop27h 00mIcelandair
Deal found 12/8£400
Sat 8/1119:40BWI - LHR
2 stops18h 10mMultiple Airlines
Wed 12/1119:50LHR - BWI
2 stops27h 50mMultiple Airlines
Deal found 14/8£402
Mon 29/920:30BWI - LHR
1 stop18h 50mIcelandair
Tue 7/1021:25LHR - BWI
1 stop27h 00mIcelandair
Deal found 14/8£405
Sun 7/920:30BWI - LHR
1 stop10h 25mIcelandair
Fri 19/913:05LHR - BWI
1 stop11h 20mIcelandair
Deal found 13/8£409
Mon 8/920:30BWI - LHR
1 stop10h 25mIcelandair
Fri 12/921:25LHR - BWI
1 stop27h 00mIcelandair
Deal found 13/8£409
Sun 7/918:50BWI - LHR
2 stops20h 30mMultiple Airlines
Sat 13/907:40LHR - BWI
2 stops15h 00mMultiple Airlines
Deal found 14/8£412
Sun 21/920:30BWI - LHR
1 stop10h 25mIcelandair
Tue 7/1013:05LHR - BWI
1 stop11h 20mIcelandair
Deal found 13/8£418
Fri 26/918:50BWI - LHR
2 stops20h 30mMultiple Airlines
Sat 4/1007:40LHR - BWI
2 stops15h 00mMultiple Airlines
Deal found 13/8£420
Sun 14/918:50BWI - LHR
2 stops21h 45mMultiple Airlines
Fri 19/907:35LHR - BWI
1 stop15h 05mMultiple Airlines
Deal found 14/8£423

Cheapflights Fare Finder

 
Customise your flight search to find flights from Baltimore to Heathrow 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 858,174 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from Baltimore to London Heathrow Airport that are best for you.

Fly from

Baltimore

Fly to

Heathrow

Route

Depart

Return

Price

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Tue 21/10

20:30-11:55

1 stop10h 25m

London Heathrow

Wed 29/10

12:15-19:40

1 stop11h 25m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Tue 21/10

20:30-11:55

1 stop10h 25m

London Heathrow

Thu 30/10

12:15-19:40

1 stop11h 25m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Mon 20/10

20:30-11:55

1 stop10h 25m

London Heathrow

Thu 30/10

12:15-19:40

1 stop11h 25m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Wed 8/10

20:30-20:20

1 stop18h 50m

London Heathrow

Wed 15/10

13:05-19:25

1 stop11h 20m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Thu 11/12

19:40-10:50

1 stop10h 10m

London Heathrow

Tue 27/1

12:15-18:40

1 stop11h 25m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Thu 6/11

19:40-10:50

1 stop10h 10m

London Heathrow

Mon 10/11

12:15-18:40

1 stop11h 25m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Thu 2/10

20:30-20:20

1 stop18h 50m

London Heathrow

Thu 9/10

13:05-19:25

1 stop11h 20m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Tue 7/10

20:30-11:55

1 stop10h 25m

London Heathrow

Tue 14/10

13:05-19:25

1 stop11h 20m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Mon 6/10

20:30-20:20

1 stop18h 50m

London Heathrow

Tue 14/10

13:05-19:25

1 stop11h 20m

£457

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Mon 5/1

19:40-10:50

1 stop10h 10m

London Heathrow

Tue 13/1

12:15-18:40

1 stop11h 25m

£457

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 22 results
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Best time to book a flight from Baltimore to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Baltimore with our price prediction graph.
Estimated return 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 Heathrow Airport

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

Use this chart to determine the optimal time to book a return flight from Baltimore to Heathrow. Price data was last updated on 8 August 2025.

The price you pay for your flight from Baltimore to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 50 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 Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Baltimore to London Heathrow Airport (average of £112). Flying from Baltimore to London Heathrow Airport in August is currently the most expensive (average of £164). 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 LHR?

Find hourly flight availability from Baltimore to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

It’s optimal to fly from Baltimore to London Heathrow Airport in the afternoon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight at midday.

Weekly flight availability from Baltimore to London Heathrow Airport

Explore weekly flight availability from Baltimore to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 August 2025.

The most flights from BWI to LHR are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

What’s the top stopover airport for flights from Baltimore to London Heathrow Airport?

Share of one-stop return flights from Baltimore to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 69% of one-stop itineraries from Baltimore to London Heathrow Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Baltimore to London Heathrow Airport?

Average return fare for one-stop flights from Baltimore to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £560.

What’s the fastest stopover option from Baltimore to London Heathrow Airport?

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

Flights via Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 11h 48m.

Which airport typically offers the quickest stopover for flights from Baltimore to London Heathrow Airport?

Average stopover duration for one-stop one-way flights from Baltimore to London Heathrow Airport, 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 stopover time of 2h 04m.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 15 August 2025.
Read through reviews of airlines operating flights from Baltimore to London Heathrow Airport, such as American Airlines, Icelandair, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Icelandair
7.0
Good
526 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Iberia
7.0
Good
2,882 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
British Airways
6.7
Okay
7,267 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Heathrow. 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 Heathrow?

    Baltimore/Washington (BWI) is the airport you will fly out of if you book a flight from Baltimore to London Heathrow. You should not have trouble finding flights to London Heathrow from Baltimore/Washington; the airport handles an average of 5 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Baltimore airport to London Heathrow. It is only a 8.5 mi journey to Baltimore/Washington (BWI) from Baltimore’s city center.

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

    Cheapflights users have booked flights from Baltimore to London Heathrow Airport round-trip from £353. Other airlines that can offer you cheap pricing are Iberia, from £410, and British Airways, from £460. Icelandair is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

    Before booking your flight to London Heathrow Airport from Baltimore, check out the most reliable airlines to get you to your destination on time: American Airlines (44%), Iberia (43%), British Airways( 40%).

  • What are the cheapest flights from Baltimore to London Heathrow Airport?

    The cheapest flight price from Baltimore to London Heathrow Airport is £280. On average you can expect to pay £1,165. The most popular route, (Baltimore/Washington - London Heathrow), can usually be booked for £377.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore to Heathrow 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 Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Baltimore to London Heathrow Airport (average of £112). Flying from Baltimore to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Deal
Luton
Wembley
Crawley
Ilford
Hayes
Ipswich
Southend-on-Sea
Winchester
Folkestone
Eastbourne
Maidstone
Watford
Chichester

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Baltimore to Heathrow

Discover the top 4 airlines that operate flights from Baltimore to Heathrow. 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 858,174 searches. Data last updated 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£353Average£534FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£410Average£558FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£460Average£595FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£489Average£712FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Baltimore to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Baltimore today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Baltimore to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Baltimore to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Baltimore to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Baltimore to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Baltimore to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Baltimore to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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