Cheap flights from Baltimore to London Heathrow Airport from £201

BWI — LHR
29 Nov — 6 Dec1
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 Tuesday and return on a Tuesday

Cheap flight deals from Baltimore to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Baltimore to Heathrow

Mon 30/1119:40 -
1 stop10h 10m
Sun 10/120:35 -
1 stop27h 05m
Deal found 29/10£518
Mon 16/1119:40 -
2 stops16h 20m
Mon 23/1106:40 -
2 stops17h 00m
Deal found 29/10£519
Sun 13/1219:40 -
1 stop10h 10m
Fri 18/1212:15 -
1 stop11h 25m
Deal found 26/10£524
Tue 1/1219:40 -
1 stop10h 10m
Thu 10/1212:15 -
1 stop11h 25m
Deal found 28/10£525
Mon 7/1219:40 -
1 stop18h 50m
Mon 14/1220:35 -
1 stop27h 05m
Deal found 29/10£525
Wed 18/1119:40 -
1 stop18h 50m
Tue 24/1120:35 -
1 stop27h 05m
Deal found 28/10£526
Sun 22/1119:40 -
1 stop10h 10m
Mon 30/1112:15 -
1 stop11h 25m
Deal found 28/10£527
Wed 25/1119:40 -
1 stop18h 50m
Thu 3/1212:15 -
1 stop11h 25m
Deal found 28/10£528
Mon 30/1119:40 -
1 stop10h 10m
Mon 7/1212:15 -
1 stop11h 25m
Deal found 28/10£529
Thu 3/1219:40 -
1 stop18h 50m
Sun 6/1220:35 -
1 stop27h 05m
Deal found 25/10£530
Tue 1/1219:40 -
1 stop10h 10m
Wed 9/1220:35 -
1 stop27h 05m
Deal found 28/10£531
Mon 23/1119:40 -
1 stop18h 50m
Wed 2/1220:35 -
1 stop27h 05m
Deal found 28/10£534

Find flight deals from Baltimore to Heathrow

Round-trip from

£518

One-way from

£201

Popular in

June

Cheapest in

January

Average price

£624
Icelandair
  • Icelandair
  • 30/11-10/1
  • 2 total stops
  • 37h 15m total
  • Baltimore to London
Icelandair
  • Icelandair
  • 9/12-31/12
  • 1 total stop
  • 18h 50m total
  • Baltimore to London
Highest demand for flights based on searches. 17% potential increase in price (£103 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

 
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

Thu 1/4

23:20-11:55

1 stop31h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£224

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 9/2

11:46-06:50

2 stops14h 04m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Mon 15/3

16:39-10:40

2 stops14h 01m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 2/3

10:00-07:45

2 stops16h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Wed 4/11

11:02-07:50

1 stop15h 48m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 17/11

10:25-06:50

2 stops15h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Wed 4/11

12:34-12:00

1 stop18h 26m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 5/1

13:12-10:30

2 stops16h 18m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Wed 4/11

11:02-06:50

2 stops14h 48m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Wed 30/12

09:52-08:30

2 stops17h 38m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£380

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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 £501). Flying from Baltimore to London Heathrow Airport in June is currently the most expensive (average of £903). 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?

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 typical for this route at the moment.

Baltimore to London Heathrow Airport flights typically cost between £491 and £765 in November.
The cheapest return price found within the last 5 days was £518 on Icelandair (30 Nov–10 Jan).

Reviews of airlines servicing Heathrow

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.

Crew

8.0

Overall

6.9

Comfort

6.9

Entertainment

6.9

Boarding

7.2

Food

6.1

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.

Crew

8.0

Overall

6.9

Comfort

6.9

Entertainment

6.9

Boarding

7.2

Food

6.1

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.

Crew

8.0

Overall

6.9

Comfort

6.9

Entertainment

6.9

Boarding

7.2

Food

6.1

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

  • 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 2 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 7h 10m. 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 £233. Another airline that can offer you cheap pricing is British Airways. Icelandair is priced at 64% 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: Finnair (85%), American Airlines (77%), British Airways( 77%).

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

    The cheapest flight price from Baltimore to London Heathrow Airport is £351. On average you can expect to pay £639. The most popular route, (Baltimore/Washington - London Heathrow), can usually be booked for £489.

  • 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 £501). Flying from Baltimore to London Heathrow Airport in June is currently the most expensive (average of £903). 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
Luton
Milton Keynes
Slough
Wembley
Gatwick
Ilford
Hayes
Croydon
Northampton
Barnet
Eastbourne
Brentford
Southend-on-Sea
Southall
Enfield
Watford
Kingston upon Thames
Dagenham
Dover

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Baltimore to Heathrow

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£233Average£576FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£433Average£753FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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