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

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Sat 1/20
Sat 1/27
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Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
20%
expected price increase
Average Price:
$959
(avg. price over the last 2 weeks)
Good Deal:
$644
or less (round trip)

When to Book Flights from Baltimore/Washington to London

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 $643 or less.
The cheapest flight from Baltimore/Washington to London was found 69 days before departure, on average.
Book at least 2 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 January.
Morning departure is around 21% more expensive 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 Flights

How long does a flight from Baltimore/Washington to London take?
An average nonstop flight takes 10h 25m, covering a distance of 3638 miles.
How many flights are there between Baltimore/Washington and London?
There are 35 (nonstop) flights between Baltimore/Washington and London per week, averaging 5 per day.
Which airlines provide the cheapest flights from Baltimore/Washington to London?
In the past 3 days, the cheapest round-trip tickets were found on WOW air ($340) and Multiple Airlines ($345)
Do I need a passport to fly between Baltimore/Washington and London?
Yes.
Which airlines fly most frequently between Baltimore/Washington and London?
American Airlines (1 times daily), Aer Lingus (1 times daily), Finnair (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Baltimore/Washington to London?
For Baltimore/Washington to London, Sunday is the cheapest day to fly on average and Thursday is the most expensive. Flying from London back to Baltimore/Washington, the best deals are generally found on Wednesday, with Saturday being the most expensive.

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

Airports
Origin
Baltimore
$340
only
$340
Destination
London
$345
only
$345
$340
only
$340
Sun, Jan 21
BWI
LGW
10h 25m
Wed, Feb 7
LGW
BWI
11h 30m
Trip: 18 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
KEF
CDG
Okay 5.6

Same as listed above

BOS
KEF
Mediocre 2.0

Nothing

Worst customer service experience of my life - they cancelled the flight only for people with connections and booked me to a week later.

CDG
KEF
Mediocre 2.0

Flight cancelled due to overbooking, notification received while I was en route to the airport. Was assured I would be on the flight for the following day. Awoke next day and called airline to confirm, they stated my refund had been processed, I would not be on the flight, and there was nothing that they could do for me. I was forced to rent a car and take a completely different flight from another airport at a much higher price. Never again.

FRA
KEF
Mediocre 2.0

This airline is disaster. They trielt live on the planet don’t give a &$!@ Made us buy new tickets for the following day for a type o on the ticket. They just didn’t care...

They kept me and my two year old in the plane for almost 4 hours and told us that we will take off every ten minutes, but obviously we never did. We got rebooked for the following day. They provided a small room to stay in and $7 wach for food. They treated us like a huge inconvenience. We had to pay for food, my husband had to take another day off work to come get us. This airline is shameless. We are spending more money to with a different air line next time.

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

Wed, May 2
BWI
LTN
12h 50m
Wed, May 16
LTN
BWI
16h 35m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 22
BWI
LGW
10h 25m
Wed, Feb 7
LGW
BWI
11h 30m
Trip: 17 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
FRA
KEF
Mediocre 2.0

This airline is disaster. They trielt live on the planet don’t give a &$!@ Made us buy new tickets for the following day for a type o on the ticket. They just didn’t care...

They kept me and my two year old in the plane for almost 4 hours and told us that we will take off every ten minutes, but obviously we never did. We got rebooked for the following day. They provided a small room to stay in and $7 wach for food. They treated us like a huge inconvenience. We had to pay for food, my husband had to take another day off work to come get us. This airline is shameless. We are spending more money to with a different air line next time.

LGW
KEF
Good 6.6

Food was reasonably priced. Price of flight was great.

Not a lot of room. Tight space.

BOS
KEF
Okay 5.6

Discomfort in seat, need to pay for water, no WiFi or Internet/entertainment for international flight.

KEF
CDG
Okay 5.6

Same as listed above

SFO
KEF
Good 6.0

customer service was nice, although not efficient (they double charged me for a second piece of luggage) i liked the larger seats

double charged for second piece of luggage

Wed, Apr 18
BWI
LTN
12h 50m
Tue, May 1
LTN
BWI
16h 50m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 23
BWI
LGW
10h 25m
Wed, Feb 7
LGW
BWI
11h 30m
Trip: 16 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
FRA
KEF
Mediocre 2.0

This airline is disaster. They trielt live on the planet don’t give a &$!@ Made us buy new tickets for the following day for a type o on the ticket. They just didn’t care...

They kept me and my two year old in the plane for almost 4 hours and told us that we will take off every ten minutes, but obviously we never did. We got rebooked for the following day. They provided a small room to stay in and $7 wach for food. They treated us like a huge inconvenience. We had to pay for food, my husband had to take another day off work to come get us. This airline is shameless. We are spending more money to with a different air line next time.

KEF
BOS
Good 6.0

That was a pleasant flight with quick check in.

There was no free beverages like water, tea or coffee.

CDG
KEF
Mediocre 2.0

Flight cancelled due to overbooking, notification received while I was en route to the airport. Was assured I would be on the flight for the following day. Awoke next day and called airline to confirm, they stated my refund had been processed, I would not be on the flight, and there was nothing that they could do for me. I was forced to rent a car and take a completely different flight from another airport at a much higher price. Never again.

MIA
KEF
Mediocre 2.0

Easy refund

Customer service, flight cancelled with no alternative offered

ORD
KEF
Mediocre 2.6

Flight was 2 hours late, causing a missed flight. Baggage took 90 minutes to arrive. The airline provided no info on connections as hundreds of passengers stood around for an hour and then chaos reigned as all rushed to get rebooked in only two lines. Nobody got rebooked until the next day and had to stay overnight in hotels with a voucher that provided only minimal food after a 15 minute walk to a fast food restaurant. the following day we were rebooked to Copenhagen rather than Berlin, with no guarantee of a connecting flight. I was forced to buy another ticket on another carrier in order to make my own wedding.

Wed, May 9
BWI
LTN
12h 50m
Wed, May 16
LTN
BWI
16h 35m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Jan 28
BWI
LGW
10h 25m
Fri, Feb 2
LGW
BWI
11h 30m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
BOS
KEF
Okay 5.6

Discomfort in seat, need to pay for water, no WiFi or Internet/entertainment for international flight.

BOS
KEF
Mediocre 2.0

Nothing

Worst customer service experience of my life - they cancelled the flight only for people with connections and booked me to a week later.

KEF
CDG
Okay 5.6

Same as listed above

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

KEF
ORD
Okay 4.3

Cheap price and sources of entertainment

We paid for upgraded seats and did not receive them. We told the crew. They did nothing except say to call or email WOW. So we did. After waiting a half hour they said we would be refunded. Aweek later, we receive an email asking what it is we requested on the call, as if they did not remember to refund us the money for the upgraded seats we never got and should have.

Sat, May 26
BWI
LTN
13h 05m
Thu, May 31
LTN
BWI
16h 50m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 29
BWI
LGW
10h 25m
Fri, Feb 2
LGW
BWI
11h 30m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
KEF
ORD
Okay 4.3

Cheap price and sources of entertainment

We paid for upgraded seats and did not receive them. We told the crew. They did nothing except say to call or email WOW. So we did. After waiting a half hour they said we would be refunded. Aweek later, we receive an email asking what it is we requested on the call, as if they did not remember to refund us the money for the upgraded seats we never got and should have.

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

BOS
KEF
Okay 5.6

Discomfort in seat, need to pay for water, no WiFi or Internet/entertainment for international flight.

BOS
KEF
Mediocre 2.0

Nothing

Worst customer service experience of my life - they cancelled the flight only for people with connections and booked me to a week later.

ORD
KEF
Mediocre 2.6

Flight was 2 hours late, causing a missed flight. Baggage took 90 minutes to arrive. The airline provided no info on connections as hundreds of passengers stood around for an hour and then chaos reigned as all rushed to get rebooked in only two lines. Nobody got rebooked until the next day and had to stay overnight in hotels with a voucher that provided only minimal food after a 15 minute walk to a fast food restaurant. the following day we were rebooked to Copenhagen rather than Berlin, with no guarantee of a connecting flight. I was forced to buy another ticket on another carrier in order to make my own wedding.

Tue, Apr 24
BWI
LTN
13h 05m
Tue, May 1
LTN
BWI
16h 50m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 5
BWI
LGW
10h 25m
Fri, Feb 23
LGW
BWI
11h 30m
Trip: 19 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
BOS
KEF
Okay 5.6

Discomfort in seat, need to pay for water, no WiFi or Internet/entertainment for international flight.

CDG
KEF
Mediocre 2.0

Flight cancelled due to overbooking, notification received while I was en route to the airport. Was assured I would be on the flight for the following day. Awoke next day and called airline to confirm, they stated my refund had been processed, I would not be on the flight, and there was nothing that they could do for me. I was forced to rent a car and take a completely different flight from another airport at a much higher price. Never again.

BOS
KEF
Mediocre 2.0

Nothing

Worst customer service experience of my life - they cancelled the flight only for people with connections and booked me to a week later.

FRA
KEF
Mediocre 2.0

This airline is disaster. They trielt live on the planet don’t give a &$!@ Made us buy new tickets for the following day for a type o on the ticket. They just didn’t care...

They kept me and my two year old in the plane for almost 4 hours and told us that we will take off every ten minutes, but obviously we never did. We got rebooked for the following day. They provided a small room to stay in and $7 wach for food. They treated us like a huge inconvenience. We had to pay for food, my husband had to take another day off work to come get us. This airline is shameless. We are spending more money to with a different air line next time.

SFO
KEF
Good 6.0

customer service was nice, although not efficient (they double charged me for a second piece of luggage) i liked the larger seats

double charged for second piece of luggage

Sun, May 27
BWI
LTN
12h 50m
Thu, May 31
LTN
BWI
16h 50m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 19
BWI
LGW
10h 25m
Fri, Feb 23
LGW
BWI
11h 30m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
FRA
KEF
Mediocre 2.0

This airline is disaster. They trielt live on the planet don’t give a &$!@ Made us buy new tickets for the following day for a type o on the ticket. They just didn’t care...

They kept me and my two year old in the plane for almost 4 hours and told us that we will take off every ten minutes, but obviously we never did. We got rebooked for the following day. They provided a small room to stay in and $7 wach for food. They treated us like a huge inconvenience. We had to pay for food, my husband had to take another day off work to come get us. This airline is shameless. We are spending more money to with a different air line next time.

BOS
KEF
Mediocre 2.0

Nothing

Worst customer service experience of my life - they cancelled the flight only for people with connections and booked me to a week later.

KEF
ORD
Okay 4.3

Cheap price and sources of entertainment

We paid for upgraded seats and did not receive them. We told the crew. They did nothing except say to call or email WOW. So we did. After waiting a half hour they said we would be refunded. Aweek later, we receive an email asking what it is we requested on the call, as if they did not remember to refund us the money for the upgraded seats we never got and should have.

CDG
KEF
Mediocre 2.0

Flight cancelled due to overbooking, notification received while I was en route to the airport. Was assured I would be on the flight for the following day. Awoke next day and called airline to confirm, they stated my refund had been processed, I would not be on the flight, and there was nothing that they could do for me. I was forced to rent a car and take a completely different flight from another airport at a much higher price. Never again.

KEF
CDG
Okay 5.6

Same as listed above

Wed, May 9
BWI
LTN
12h 50m
Wed, May 23
LTN
BWI
16h 35m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 21
BWI
LGW
10h 25m
Fri, Mar 2
LGW
BWI
11h 30m
Trip: 10 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
CDG
KEF
Mediocre 2.0

Flight cancelled due to overbooking, notification received while I was en route to the airport. Was assured I would be on the flight for the following day. Awoke next day and called airline to confirm, they stated my refund had been processed, I would not be on the flight, and there was nothing that they could do for me. I was forced to rent a car and take a completely different flight from another airport at a much higher price. Never again.

KEF
CDG
Okay 5.6

Same as listed above

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

ORD
KEF
Mediocre 2.6

Flight was 2 hours late, causing a missed flight. Baggage took 90 minutes to arrive. The airline provided no info on connections as hundreds of passengers stood around for an hour and then chaos reigned as all rushed to get rebooked in only two lines. Nobody got rebooked until the next day and had to stay overnight in hotels with a voucher that provided only minimal food after a 15 minute walk to a fast food restaurant. the following day we were rebooked to Copenhagen rather than Berlin, with no guarantee of a connecting flight. I was forced to buy another ticket on another carrier in order to make my own wedding.

KEF
BOS
Good 6.0

That was a pleasant flight with quick check in.

There was no free beverages like water, tea or coffee.

Thu, May 10
BWI
LTN
13h 55m
Mon, May 21
LTN
BWI
21h 35m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 5
BWI
LGW
10h 25m
Thu, Mar 15
LGW
BWI
25h 40m
Trip: 10 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
KEF
CDG
Okay 5.6

Same as listed above

KEF
BOS
Good 6.0

That was a pleasant flight with quick check in.

There was no free beverages like water, tea or coffee.

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

ORD
KEF
Mediocre 2.6

Flight was 2 hours late, causing a missed flight. Baggage took 90 minutes to arrive. The airline provided no info on connections as hundreds of passengers stood around for an hour and then chaos reigned as all rushed to get rebooked in only two lines. Nobody got rebooked until the next day and had to stay overnight in hotels with a voucher that provided only minimal food after a 15 minute walk to a fast food restaurant. the following day we were rebooked to Copenhagen rather than Berlin, with no guarantee of a connecting flight. I was forced to buy another ticket on another carrier in order to make my own wedding.

MIA
KEF
Mediocre 2.0

Easy refund

Customer service, flight cancelled with no alternative offered

Mon, Mar 12
BWI
LGW
10h 25m
Thu, Apr 12
LGW
BWI
11h 15m
Trip: 32 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
KEF
ORD
Okay 4.3

Cheap price and sources of entertainment

We paid for upgraded seats and did not receive them. We told the crew. They did nothing except say to call or email WOW. So we did. After waiting a half hour they said we would be refunded. Aweek later, we receive an email asking what it is we requested on the call, as if they did not remember to refund us the money for the upgraded seats we never got and should have.

FRA
KEF
Mediocre 2.0

This airline is disaster. They trielt live on the planet don’t give a &$!@ Made us buy new tickets for the following day for a type o on the ticket. They just didn’t care...

They kept me and my two year old in the plane for almost 4 hours and told us that we will take off every ten minutes, but obviously we never did. We got rebooked for the following day. They provided a small room to stay in and $7 wach for food. They treated us like a huge inconvenience. We had to pay for food, my husband had to take another day off work to come get us. This airline is shameless. We are spending more money to with a different air line next time.

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

KEF
CDG
Okay 5.6

Same as listed above

BOS
KEF
Okay 5.6

Discomfort in seat, need to pay for water, no WiFi or Internet/entertainment for international flight.

Thu, Apr 19
BWI
LTN
13h 20m
Thu, Apr 26
LTN
BWI
16h 50m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
BWI
LGW
10h 25m
Thu, May 3
LGW
BWI
11h 10m
Trip: 52 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 1231 reviews
Overall
5.9
Boarding
6.3
Comfort
5.7
Crew
6.9
Entertainment
4.1
Food
4.7
KEF
BOS
Good 6.0

That was a pleasant flight with quick check in.

There was no free beverages like water, tea or coffee.

KEF
SXF
Mediocre 2.0

There was no rebooking to Berlin. WOW offered a flight to Copenhagen with no guarantee of a connection to Berlin.

LGW
KEF
Good 6.6

Food was reasonably priced. Price of flight was great.

Not a lot of room. Tight space.

MIA
KEF
Mediocre 2.0

Easy refund

Customer service, flight cancelled with no alternative offered

BOS
KEF
Mediocre 2.0

Nothing

Worst customer service experience of my life - they cancelled the flight only for people with connections and booked me to a week later.

Show more results

Baltimore/Washington to London Flight Information

Flights Arrive in London
Flights Depart from Baltimore/Washington
Flight Price $340
Distance 3638 miles
Airlines WOW air
*
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.

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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.