Cheap flights from Washington, D.C. to London from $352

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London departing on 3/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
8:30 pm - 5:05 pm
IAD
-
LCY
15h 35m
1 stop
SWISS Logo
9:15 am - 4:40 pm
LCY
-
IAD
12h 25m
1 stop
$586SWISS
Tue, Feb 17 - Tue, Mar 3
SWISS Logo
8:30 pm - 12:55 pm
IAD
-
LCY
11h 25m
1 stop
SWISS Logo
9:15 am - 4:40 pm
LCY
-
IAD
12h 25m
1 stop
$590SWISS
Sun, Feb 1 - Tue, Feb 10
Multiple Airlines Logo
5:05 pm - 8:35 am
IAD
-
LCY
10h 30m
1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m
1 stop
$593Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
5:05 pm - 8:35 am
IAD
-
LCY
10h 30m
1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m
1 stop
$600Multiple Airlines
Mon, Feb 16 - Thu, Mar 5
Iberia Logo
1:59 pm - 8:50 am
DCA
-
LCY
13h 51m
2 stops
Iberia Logo
7:50 am - 6:33 pm
LCY
-
DCA
15h 43m
2 stops
$684Iberia
Mon, Feb 2 - Wed, Feb 18
British Airways Logo
10:55 am - 8:35 am
BWI
-
LCY
16h 40m
2 stops
British Airways Logo
7:15 pm - 5:04 pm
LCY
-
BWI
26h 49m
2 stops
$698British Airways
Tue, Apr 14 - Tue, Apr 21
Delta Logo
2:38 pm - 9:30 am
BWI
-
LCY
14h 52m
2 stops
Delta Logo
8:25 am - 7:19 pm
LCY
-
BWI
15h 54m
2 stops
$729Delta
Wed, Mar 18 - Mon, Apr 6
Delta Logo
11:45 am - 7:15 am
BWI
-
LCY
15h 30m
2 stops
Delta Logo
8:25 am - 7:19 pm
LCY
-
BWI
15h 54m
2 stops
$730Delta
Wed, Mar 18 - Mon, Apr 6
British Airways Logo
1:44 pm - 8:50 am
DCA
-
LCY
15h 06m
2 stops
British Airways Logo
6:55 pm - 8:43 pm
LCY
-
DCA
29h 48m
2 stops
$750British Airways
Tue, Mar 17 - Sun, Mar 22
Iberia Logo
1:59 pm - 2:05 pm
DCA
-
LCY
19h 06m
2 stops
Iberia Logo
7:50 am - 6:56 pm
LCY
-
DCA
16h 06m
2 stops
$818Iberia
Wed, Feb 4 - Wed, Feb 11

Virgin Atlantic flights from Washington, D.C. to London City Airport

Our best Virgin Atlantic deals on Washington, D.C. to London City Airport flight tickets
Virgin Atlantic
Mar 19
IAD7:05 pmWashington, D.C. Dulles Intl
9h 45m
1 stop
LCY8:50 amLondon City
Mar 25
LCY7:45 amLondon City
13h 20m
1 stop
IAD5:05 pmWashington, D.C. Dulles Intl
$633
Virgin Atlantic
Feb 18
IAD12:24 pmWashington, D.C. Dulles Intl
13h 51m
2 stops
LCY7:15 amLondon City
Feb 25
LCY8:40 amLondon City
12h 25m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$655
Virgin Atlantic
Feb 22
IAD6:05 pmWashington, D.C. Dulles Intl
9h 45m
1 stop
LCY8:50 amLondon City
Mar 8
LCY5:50 pmLondon City
30h 56m
2 stops
IAD8:46 pmWashington, D.C. Dulles Intl
$660

SWISS flights from Washington, D.C. to London City Airport

Our best SWISS deals on Washington, D.C. to London City Airport flight tickets
SWISS
Feb 17
IAD8:30 pmWashington, D.C. Dulles Intl
15h 35m
1 stop
LCY5:05 pmLondon City
Mar 3
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$586
SWISS
Feb 1
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Feb 10
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$590
SWISS
Feb 3
IAD8:30 pmWashington, D.C. Dulles Intl
15h 35m
1 stop
LCY5:05 pmLondon City
Feb 10
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$591

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to London City Airport 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, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 2/17

8:30 pm-5:05 pm

1 stop15h 35m

London City

Tue 3/3

9:15 am-4:40 pm

1 stop12h 25m

$586

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 2/1

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 2/10

9:15 am-4:40 pm

1 stop12h 25m

$590

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 2/18

5:05 pm-8:35 am

1 stop10h 30m

London City

Wed 2/25

6:50 am-3:35 pm

1 stop13h 45m

$593

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 2/16

5:05 pm-8:35 am

1 stop10h 30m

London City

Thu 3/5

6:50 am-3:35 pm

1 stop13h 45m

$600

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Mon 2/2

1:59 pm-8:50 am

2 stops13h 51m

London City

Wed 2/18

7:50 am-6:33 pm

2 stops15h 43m

$684

BaltimoreLondon

BWI - LCY

BWILCY

Baltimore/Washington

Tue 4/14

10:55 am-8:35 am

2 stops16h 40m

London City

Tue 4/21

7:15 pm-5:04 pm

2 stops26h 49m

$698

BaltimoreLondon

BWI - LCY

BWILCY

Baltimore/Washington

Wed 3/18

2:38 pm-9:30 am

2 stops14h 52m

London City

Mon 4/6

8:25 am-7:19 pm

2 stops15h 54m

$729

BaltimoreLondon

BWI - LCY

BWILCY

Baltimore/Washington

Wed 3/18

11:45 am-7:15 am

2 stops15h 30m

London City

Mon 4/6

8:25 am-7:19 pm

2 stops15h 54m

$730

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 3/17

1:44 pm-8:50 am

2 stops15h 06m

London City

Sun 3/22

6:55 pm-8:43 pm

2 stops29h 48m

$750

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 2/4

1:59 pm-2:05 pm

2 stops19h 06m

London City

Wed 2/11

7:50 am-6:56 pm

2 stops16h 06m

$818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. to London City Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to London City?

SWISS, British Airways, and Iberia are the most popular carriers operating from Washington, D.C. to London City

When to book flights from Washington, D.C. to London City Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to London City Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to London City Airport (WAS to LCY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to London City Airport

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Washington, D.C. to London City Airport takes 10h 25m
There are no direct flights from Washington, D.C. to London City Airport. There are no popular flight routes from Washington, D.C. to London City Airport.
  • How far is Washington, D.C. to London City by plane?

    A flight from Washington, D.C. to London City will travel around 3669.3 mi. By plane, this route typically takes 10h 25m.

  • When did momondo last update prices for flights from Washington, D.C. to London City Airport?

    Prices for flights from Washington, D.C. to London City Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. to London City Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to London City Airport.

  • What documentation or ID do you need to fly to London City Airport?

    The required travel and health documents for your London City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Luton
Milton Keynes
Dover
Slough
Guildford
Wembley
Crawley
Dartford
Hayes
Brentwood
Watford
Cobham
Folkestone
Romford
Stansted
Harrow
Croydon
Richmond

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Washington, D.C..

Can I find flights from Washington, D.C. to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Fri 2/20
Fri 2/27

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