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Cheap flights from Baltimore to London Heathrow Airport from £197

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LHR
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Baltimore/Washington to London Heathrow are usually found in January or February, booked 24 days in advance, depart on a Sunday or Thursday and return on a Monday

Cheap flight deals from Baltimore to Heathrow

Enter your travel dates to find the best prices.

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 7 August 2026.

Mon 21/920:30 -
1 stop10h 25m
Wed 30/921:25 -
1 stop27h 00m
Deal found 1/8£481
Sat 7/1119:40 -
1 stop10h 10m
Wed 18/1112:15 -
1 stop11h 25m
Deal found 2/8£485
Fri 6/1119:40 -
1 stop10h 10m
Wed 11/1112:15 -
1 stop11h 25m
Deal found 3/8£486
Sun 1/1119:40 -
1 stop10h 10m
Fri 6/1112:15 -
1 stop11h 25m
Deal found 1/8£487
Wed 28/1020:40 -
1 stop10h 10m
Wed 11/1112:15 -
1 stop11h 25m
Deal found 5/8£487
Sun 1/1119:40 -
1 stop10h 10m
Sun 8/1112:15 -
1 stop11h 25m
Deal found 3/8£488
Thu 15/1023:20 -
1 stop16h 00m
Fri 23/1021:25 -
1 stop27h 00m
Deal found 3/8£489
Thu 1/1020:30 -
1 stop18h 50m
Sun 4/1021:25 -
1 stop27h 00m
Deal found 2/8£490
Mon 16/1119:40 -
1 stop18h 50m
Wed 2/1220:35 -
1 stop27h 05m
Deal found 4/8£490
Thu 1/1020:30 -
1 stop18h 50m
Thu 8/1021:25 -
1 stop27h 00m
Deal found 2/8£491
Tue 29/920:30 -
1 stop10h 25m
Tue 6/1013:05 -
1 stop11h 20m
Deal found 2/8£492
Tue 29/920:30 -
1 stop18h 50m
Wed 7/1013:05 -
1 stop11h 20m
Deal found 5/8£493

Find 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 7 August 2026.

Round-trip from

£481

One-way from

£197

Popular in

June

Cheapest in

January

Average price

£678
Icelandair
  • Icelandair
  • 21/9-30/9
  • 2 total stops
  • 37h 25m total
  • Baltimore to London
Search Deals
Icelandair
  • Icelandair
  • 1/10
  • 1 total stop
  • 18h 50m total
  • Baltimore to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 7 August 2026.
Use the filters below to find and compare flights from Baltimore to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 22/9

17:40-13:05

2 stops14h 25m

London Heathrow

Fri 2/10

06:30-17:27

2 stops15h 57m

£646

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 1/12

12:00-07:15

2 stops14h 15m

London Heathrow

Tue 8/12

11:45-23:03

2 stops16h 18m

£646

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Sun 8/11

09:46-06:50

2 stops16h 04m

London Heathrow

Fri 13/11

11:45-23:03

2 stops16h 18m

£646

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Sat 3/10

17:29-09:00

1 stop34h 31m

London Heathrow

Mon 26/10

16:40-18:54

2 stops54h 14m

£651
Fastest return journey

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 10/11

18:55-07:05

Nonstop7h 10m

London Heathrow

Wed 2/12

13:50-17:05

Nonstop8h 15m

£675

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 10/11

16:59-11:40

1 stop13h 41m

London Heathrow

Sun 15/11

11:30-23:03

2 stops16h 33m

£686

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Mon 4/1

10:00-07:50

1 stop16h 50m

London Heathrow

Mon 11/1

11:45-22:55

2 stops16h 10m

£686

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Mon 26/10

19:55-07:05

Nonstop7h 10m

London Heathrow

Mon 2/11

13:50-17:05

Nonstop8h 15m

£691

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Fri 25/9

18:19-13:45

2 stops14h 26m

London Heathrow

Sun 4/10

08:55-22:31

2 stops18h 36m

£726

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Thu 17/9

06:00-07:15

1 stop20h 15m

London Heathrow

Tue 29/9

06:30-17:27

2 stops15h 57m

£732

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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?

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 23 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 £478). Flying from Baltimore to London Heathrow Airport in June is currently the most expensive (average of £888). 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 7 August 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 Heathrow Airport as you normally would.

How much does it cost for a return flight from Baltimore to London Heathrow Airport?

Airfare is below average for this route at the moment.

Baltimore to London Heathrow Airport flights typically cost between £568 and £796 in September.
The cheapest return price found within the last 5 days was £481 on Icelandair (21 Sept–30 Sept).

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 7 August 2026.
Read through reviews of airlines operating flights from Baltimore to London Heathrow Airport, such as Icelandair and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
721 reviews
Check prices

Comfort

6.9

Food

6.1

Crew

8.0

Boarding

7.1

Overall

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

William,Jun 2026

SEA - KEF

First time Iceland Air. Ridiculously small amount of leg room, flight was hotter than hades and people kept requesting for cooler air that never came. You pay for everything, no food of any kind unless you pay which I've never seen on a flight of this length. Just seemed like they are cheap as possible about everything. Won't fly with them again if I can avoid it.
Icelandair
7.0
Good
721 reviews
Icelandair
7.0
Good
721 reviews
Check prices

Comfort

6.9

Food

6.1

Crew

8.0

Boarding

7.1

Overall

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

William,Jun 2026

SEA - KEF

First time Iceland Air. Ridiculously small amount of leg room, flight was hotter than hades and people kept requesting for cooler air that never came. You pay for everything, no food of any kind unless you pay which I've never seen on a flight of this length. Just seemed like they are cheap as possible about everything. Won't fly with them again if I can avoid it.
British Airways
6.7
Okay
8,147 reviews
Icelandair
7.0
Good
721 reviews
Check prices

Comfort

6.9

Food

6.1

Crew

8.0

Boarding

7.1

Overall

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

William,Jun 2026

SEA - KEF

First time Iceland Air. Ridiculously small amount of leg room, flight was hotter than hades and people kept requesting for cooler air that never came. You pay for everything, no food of any kind unless you pay which I've never seen on a flight of this length. Just seemed like they are cheap as possible about everything. Won't fly with them again if I can avoid 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 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 2 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.

  • How long is the flight from Baltimore to London Heathrow Airport?

    Departing from Baltimore to London Heathrow Airport will take you 14h 15m. There are 3622 mi between Baltimore and London Heathrow Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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 £385. Another airline that can offer you cheap pricing is British Airways. 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 (67%), Aer Lingus (67%), Finnair( 67%).

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

    The cheapest flight price from Baltimore to London Heathrow Airport is £263. On average you can expect to pay £632. The most popular route, (Baltimore/Washington - London Heathrow), can usually be booked for £480.

  • 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 £478). Flying from Baltimore to London Heathrow Airport in June is currently the most expensive (average of £888). 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
Hounslow
Milton Keynes
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Northampton
Watford
Swindon
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Poole

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 2 airlines flying from Baltimore to Heathrow

Discover the top 2 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 7 August 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£385Average£598FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£429Average£578FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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