Find Cheap Flights from Baltimore/Washington to London Heathrow (BWI - LHR)

Search hundreds of travel sites at once for deals on flights to London Heathrow

Sat 2/17
Sat 2/24
Any month
Compare vs. KAYAK |

Good to Know

Low Season:
March
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
13%
expected price increase
Average Price:
$1106
(avg. price over the last 2 weeks)
Good Deal:
$761
or less (round trip)

When to Book Flights from Baltimore/Washington to London Heathrow

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $760 or less.
The cheapest flight from Baltimore/Washington to London Heathrow was found 71 days before departure, on average.
Book at least 4 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is March.
Morning departure is around 20% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Baltimore/Washington to London Heathrow Flights

How long does a flight from Baltimore/Washington to London Heathrow take?
An average nonstop flight takes 7h 00m, covering a distance of 3626 miles.
How many flights are there between Baltimore/Washington and London Heathrow?
There are 100 (nonstop) flights between Baltimore/Washington and London Heathrow per week, averaging 14 per day.
Which airlines provide the cheapest flights from Baltimore/Washington to London Heathrow?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($467), British Airways ($645) and Iberia ($683).
Do I need a passport to fly between Baltimore/Washington and London Heathrow?
Yes.
Which airlines fly most frequently between Baltimore/Washington and London Heathrow?
American Airlines (3 times daily), Finnair (3 times daily), Iberia (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Baltimore/Washington to London Heathrow?
For Baltimore/Washington to London Heathrow, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London Heathrow back to Baltimore/Washington, the best deals are generally found on Thursday, with Sunday being the most expensive.

Book cheap flights from Baltimore/Washington to London Heathrow (round-trip)

Airports
Origin
Baltimore
$467
only
$467
Destination
London
$467
only
$467
Mon, Apr 30
BWI
LHR
15h 05m
Mon, May 21
LHR
BWI
15h 40m
Trip: 22 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 9
BWI
LHR
7h 10m
Tue, Apr 24
LHR
BWI
8h 05m
Trip: 16 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 64 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BWI
LHR
Good 6.3

Entertainment selection was above average, curried chicken dinner was good too!

They lost our suitcase full of outdoor gear (boots, coats, underwear, socks and thermals) days before we head to the inside of the arctic circle on an anniversary trip. Pretty upsetting to say the least

BWI
LHR
Good 7.6

Free wine and drinks with dinner

Flight was delayed for two hours. One hour on the tarmac. Missed the connecting flight to Munich and even though there were two flights BA could have booked us on while in the air they did not. We had to stand in a long queue 1.5 hrs to change our flight to the last one out and arrived at 10pm instead of 2pm. Also, the dreamliner Economy seating is a nightmare. Sardines thats what passengers are to BA. Never again.

BWI
LHR
Excellent 9.3

Overall all was excellent. The only is the sear do not have enough leg room. Particularly if the person in front of you put the seat all the way back. Would prefer a flight from Baltimore to Madrid.

Seating was to close

BWI
LHR
Mediocre 2.0

For the second London trip in a row, my return flight to BWI was cancelled. Not weather, not equipment, just cancelled.

BWI
LHR
Excellent 9.6

I like the friendliness of the crew. They were always pleasant and accommodating. The hot meals were good.

I didn't like the cramped spaces, especially when the person in front of me would put their seat back. It was hard to get in and out if you needed to use the restrooms and to eat with your food on the tray table .

Tue, May 8
BWI
LHR
7h 10m
Wed, May 16
LHR
BWI
8h 05m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
BWI
LHR
7h 10m
Thu, May 3
LHR
BWI
8h 05m
Trip: 10 days
9.0ExcellentShow reviews
Overall 9.0 Excellent
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
7.1
Food
6.7
MAD
AGP
Excellent 8.0

Our seats was almost the last seat of all our flights, even we checked in very early.

GRU
MAD
Good 7.3

Few movies. Not good food options

MAD
JFK
Mediocre 2.0

Almost nothing!

Seats small and uncomfortable. My seat did not recline for 8 1/2-9 hours (middle seat-even after told it was a good seat). My sons entertainment screen did not work for the last 3 1/2 hours. The stewardess’ didn’t even respond to the call light and after myself and sister walked back there, nothing was done. Stewardess’ sat and talked in the back and never walked around. When the finally brought drinks, never even asked why the light was on. They also were extremely unfriendly because our incoming flight from Malaga was late . All 4 pieces of luggage missed the flight and in NYC we had to ask for robes to sleep in and tooth brushes. we felt horrible flying the next day. Three pieces of luggage came 2 days later that we had to go back to airport to get. The fourth was delivered one week later with only 3 wheels!

JFK
MAD
Good 6.0

I paid for wifi and I could not use it. There was a problem with the connexion. So, I paid for nothing

JFK
MAD
Excellent 8.0

Our seats was almost the last seat of all our flights, even we checked in very early.

Sun, Aug 19
BWI
LHR
7h 10m
Tue, Aug 28
LHR
BWI
8h 05m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 7 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
BWI
LHR
Excellent 8.3

Called BA (the carrier for our FinnAir flight) when I couldn't check in (didn't have a booking number that worked). Staff member did tell me that all was in order with our booking. He wasn't able to check us in anyway, as something was amiss with 'the system'. In the end all worked out fine, we just made sure to get to the airport early to make sure we got decent seats.

A bit nerve wracking to see online that our flight information 'could not be found' when trying to check in with the booking numbers I had!

HEL
BKK
Excellent 10.0

Super quiet and comfortable flight, dedicated service, punctuality.

I liked it all.

WAW
HEL
Excellent 8.6

Nice crew. Basic services. Early arrival.

BWI
LHR
Good 7.3

I LOVED my stewardist. This man was so incredibly kind to me and the service he gave me had me questioning if it's usually appropriate to tip them. I wish I knew this mans name so I could rave about him but I unfortunately didn't catch it.

Let me start out by saying this was my first transcontinental, longer than 2hour flight...I am extremely upset that I paid the extra money to choose my seat and when booking I chose that I wanted a window seat, well I ended up smack in the middle of the plane with a person on each side of me so I wasn't even able to sleep the entire 7 hour 9p-9am flight. Also when I attempted to check in 24hours prior in order to make sure I got a seat id be happy with it said that it wasn't available for my flight so I couldn't check in and I couldn't chose a seat but regardless I still should've gotten the seat I wanted bc of my preferences at booking. Don't pay the extra to ensure your seat it's a total rip off

JFK
HEL
Excellent 10.0

Very nice staff. Probably one of the best flights

Tue, Jul 17
BWI
LHR
9h 50m
Thu, Aug 16
LHR
BWI
11h 36m
Trip: 31 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1055 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

SFO
LHR
Excellent 9.0

Virgin Atlantic continues to give great service. Their lounges are way above all other airline lounges. It is difficult to get well prepared and fresh fish in lounges, but Virgin Atlantic knows how to do it.

LAX
SYD
Good 7.6

Flight attendants were excellent!

No indication of where to go to get to connecting flight. Luckily we had 2 1/2 hours to find the flight.

LAX
LHR
Excellent 9.6

Nice airline, great crew and service.

Leg room and space was great but the seats could use some more cushion.

MCO
LGW
Mediocre 2.0

My flight was cancelled due to technical problems! Hope to be on another flight today as I missed my connecting flights too!!

Fri, May 4
BWI
LHR
22h 30m
Tue, May 15
LHR
BWI
15h 10m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Aug 27
BWI
LHR
20h 20m
Fri, Sep 7
LHR
BWI
15h 40m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Mar 18
BWI
LHR
7h 00m
Tue, Mar 27
LHR
BWI
8h 05m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 64 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BWI
LHR
Good 6.3

The food was fine, and there was plenty of it. The movie selection was good.

The crew turned the lights out when we took off, then when everyone was asleep they turned them on and served dinner, at like 10-1030 pm... Way too late to be eating. Then they turned the lights off, then on again for drinks, then off then on again for a breakfast snack, then off then on again for more drinks. Just pick one, on or off please.

BWI
LHR
Excellent 9.6

I like the friendliness of the crew. They were always pleasant and accommodating. The hot meals were good.

I didn't like the cramped spaces, especially when the person in front of me would put their seat back. It was hard to get in and out if you needed to use the restrooms and to eat with your food on the tray table .

BWI
LHR
Excellent 9.0

Safe, comfort, reliable

Food was NOT good at all. Go with theBeef & Potatoes

BWI
LHR
Excellent 10.0

I like everything the service provided by the crew and the airplane

BWI
LHR
Good 6.0

Sitting in exist row with leg room

Seats are small, not enough elbow space. Movie selection was bad.

Sun, Jun 10
BWI
LHR
20h 20m
Fri, Jun 22
LHR
BWI
15h 40m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Mar 18
BWI
LHR
7h 00m
Tue, Mar 27
LHR
BWI
8h 05m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 64 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BWI
LHR
Excellent 9.6

I like the friendliness of the crew. They were always pleasant and accommodating. The hot meals were good.

I didn't like the cramped spaces, especially when the person in front of me would put their seat back. It was hard to get in and out if you needed to use the restrooms and to eat with your food on the tray table .

BWI
LHR
Excellent 8.0

Crew was hospitable

Headphone jack in seat arm was inoperable . Seats were so cramped a fellow passenger who was taller seated on the aisle was moved.

BWI
LHR
Good 6.0

Sitting in exist row with leg room

Seats are small, not enough elbow space. Movie selection was bad.

BWI
LHR
Good 7.0

We were given a snack & drinks. You checked my 2nd bag free which was FABULOUS so I didn't have to deal with gate checking when you asked for us to do that.

Was seated in bulkhead & the media screen wouldn't stay facing me. What a pain. Ended up unable to watch it without holding it in place. Seat cushion was very flat & uncomfortable; head rest of poor design did not allow sleep.

BWI
LHR
Good 6.3

The food was fine, and there was plenty of it. The movie selection was good.

The crew turned the lights out when we took off, then when everyone was asleep they turned them on and served dinner, at like 10-1030 pm... Way too late to be eating. Then they turned the lights off, then on again for drinks, then off then on again for a breakfast snack, then off then on again for more drinks. Just pick one, on or off please.

Wed, Aug 1
BWI
LHR
11h 20m
Wed, Aug 15
LHR
BWI
14h 05m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1055 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LHR
LAX
Excellent 8.0

The crew were very polite and looked smart, I didn’t find them very personable at all though. The entertainment system is fantastic and my meal was ok I guess, I requested the low fat meal, probably should’ve just had the normal one.

The seats are not very comfortable, very hard and textured seats that just don’t feel nice at all especially on a long flight. I weight about 11 stone (154 pounds) and even I felt like I was taking up a lot of room in my seat.

SYD
LAX
Good 7.3

Nothing really!

I was coming from Sydney and I have to hurry up to take the other fly to Newark and didn’t have time to buy for nothing to eat but I was very surprised they didn’t offer me anything on the plane and when I ask they I have buy it online and didn’t have many choices anyway, I very disappointed with this fly.

LAS
LGW
Excellent 10.0

Excellent

LHR
JFK
Mediocre 2.0

Nothing

I had to run for almost 2 miles every time I had to change the flight. On the way to India they lost my one bag, and on the way back to US they lost my both begs.

LHR
LOS
Excellent 9.0

The personal care and attention.

Old movies and few entertainment choices

Wed, May 23
BWI
LHR
15h 05m
Wed, Jun 13
LHR
BWI
21h 20m
Trip: 22 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jul 31
BWI
LHR
10h 25m
Thu, Aug 9
LHR
BWI
11h 36m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1055 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LAX
LHR
Excellent 9.6

Nice airline, great crew and service.

Leg room and space was great but the seats could use some more cushion.

LHR
LOS
Excellent 9.0

The personal care and attention.

Old movies and few entertainment choices

LAS
LGW
Excellent 10.0

Excellent

MCO
LGW
Mediocre 2.0

My flight was cancelled due to technical problems! Hope to be on another flight today as I missed my connecting flights too!!

EWR
LHR
Okay 4.3

The onboard crew were lovely.

Stood at check in for over 30 mins with no staff in sight. Boarding was a disaster. Staff was not prepared nor organized and the crowds were unbearable. Upgraded seats were laughable and not worth an extra $60. Food was mediocre. Entertainment would have been good but GE touchscreens are so old, they were difficult to work.

Mon, Jun 4
BWI
LHR
7h 10m
Wed, Jun 13
LHR
BWI
8h 05m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 64 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BWI
LHR
Excellent 10.0

I like everything the service provided by the crew and the airplane

BWI
LHR
Good 7.0

We were given a snack & drinks. You checked my 2nd bag free which was FABULOUS so I didn't have to deal with gate checking when you asked for us to do that.

Was seated in bulkhead & the media screen wouldn't stay facing me. What a pain. Ended up unable to watch it without holding it in place. Seat cushion was very flat & uncomfortable; head rest of poor design did not allow sleep.

BWI
LHR
Excellent 9.3

Overall all was excellent. The only is the sear do not have enough leg room. Particularly if the person in front of you put the seat all the way back. Would prefer a flight from Baltimore to Madrid.

Seating was to close

BWI
LHR
Good 7.6

Free wine and drinks with dinner

Flight was delayed for two hours. One hour on the tarmac. Missed the connecting flight to Munich and even though there were two flights BA could have booked us on while in the air they did not. We had to stand in a long queue 1.5 hrs to change our flight to the last one out and arrived at 10pm instead of 2pm. Also, the dreamliner Economy seating is a nightmare. Sardines thats what passengers are to BA. Never again.

BWI
LHR
Excellent 9.0

Safe, comfort, reliable

Food was NOT good at all. Go with theBeef & Potatoes

Sat, Jul 28
BWI
LHR
32h 35m
Tue, Aug 7
LHR
BWI
14h 10m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1055 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LHR
JFK
Mediocre 2.0

Nothing

I had to run for almost 2 miles every time I had to change the flight. On the way to India they lost my one bag, and on the way back to US they lost my both begs.

LAX
LHR
Excellent 9.6

Nice airline, great crew and service.

Leg room and space was great but the seats could use some more cushion.

SFO
LHR
Excellent 9.0

Virgin Atlantic continues to give great service. Their lounges are way above all other airline lounges. It is difficult to get well prepared and fresh fish in lounges, but Virgin Atlantic knows how to do it.

LHR
LAX
Excellent 8.0

The crew were very polite and looked smart, I didn’t find them very personable at all though. The entertainment system is fantastic and my meal was ok I guess, I requested the low fat meal, probably should’ve just had the normal one.

The seats are not very comfortable, very hard and textured seats that just don’t feel nice at all especially on a long flight. I weight about 11 stone (154 pounds) and even I felt like I was taking up a lot of room in my seat.

LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

Mon, Jun 11
BWI
LHR
13h 20m
Tue, Jun 19
LHR
BWI
16h 45m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jul 23
BWI
LHR
15h 05m
Mon, Jul 30
LHR
BWI
21h 00m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jun 4
BWI
LHR
13h 20m
Tue, Jun 12
LHR
BWI
16h 45m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 28
BWI
LHR
22h 00m
Tue, Mar 13
LHR
BWI
43h 31m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Baltimore/Washington to London Heathrow Flight Information

Avg. Flight Duration 7h 36m
Flights Arrive in London Heathrow
Flights Depart from Baltimore/Washington
Flight Price $467
Distance 3626 miles
Airlines British Airways, Major Airline, Iberia, Finnair, Virgin Atlantic
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.