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Cheap flights from Washington, D.C. to London from $416

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 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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
8:20 pm - 12:35 pm
IAD
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$830SWISS
Sun, Aug 23 - Fri, Oct 23
SWISS Logo
8:20 pm - 12:35 pm
IAD
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$831SWISS
Tue, Sep 22 - Wed, Sep 30
SWISS Logo
8:20 pm - 6:40 pm
IAD
-
LCY
17h 20m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$834SWISS
Tue, Sep 1 - Thu, Oct 15
Virgin Atlantic Logo
5:40 pm - 9:30 am
IAD
-
LCY
10h 50m
1 stop
Virgin Atlantic Logo
9:20 am - 3:35 pm
LCY
-
IAD
11h 15m
1 stop
$852Virgin Atlantic
Sun, May 3 - Tue, May 12
Virgin Atlantic Logo
5:40 pm - 9:10 am
IAD
-
LCY
10h 30m
1 stop
Virgin Atlantic Logo
10:00 am - 3:35 pm
LCY
-
IAD
10h 35m
1 stop
$857Virgin Atlantic
Sun, May 3 - Tue, May 12
Delta Logo
6:10 pm - 7:55 am
BWI
-
LCY
32h 45m
2 stops
Delta Logo
10:00 am - 8:08 am
LCY
-
BWI
27h 08m
2 stops
$894Delta
Sat, Sep 19 - Wed, Sep 30
Delta Logo
11:55 am - 8:50 am
DCA
-
LCY
15h 55m
2 stops
Delta Logo
10:00 am - 10:03 pm
LCY
-
DCA
17h 03m
2 stops
$897Delta
Mon, May 11 - Tue, May 19
British Airways Logo
8:32 am - 9:10 am
DCA
-
LCY
19h 38m
2 stops
British Airways Logo
7:55 pm - 4:48 pm
LCY
-
DCA
25h 53m
2 stops
$986British Airways
Mon, Jul 27 - Tue, Aug 11
British Airways Logo
8:32 am - 9:00 am
DCA
-
LCY
19h 28m
2 stops
British Airways Logo
7:55 pm - 4:48 pm
LCY
-
DCA
25h 53m
2 stops
$1,034British Airways
Tue, Jul 28 - Tue, Aug 11
Multiple Airlines Logo
6:59 am - 5:55 pm
DCA
-
LCY
29h 56m
2 stops
Multiple Airlines Logo
9:45 am - 8:53 am
LCY
-
DCA
28h 08m
2 stops
$1,063Multiple Airlines
Thu, Apr 30 - Mon, May 4

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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
May 3
IAD5:40 pmWashington, D.C. Dulles Intl
10h 50m
1 stop
LCY9:30 amLondon City
May 12
LCY9:20 amLondon City
11h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$852
Virgin Atlantic
May 3
IAD5:40 pmWashington, D.C. Dulles Intl
10h 30m
1 stop
LCY9:10 amLondon City
May 12
LCY10:00 amLondon City
10h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$857
Virgin Atlantic
May 3
IAD5:40 pmWashington, D.C. Dulles Intl
11h 10m
1 stop
LCY9:50 amLondon City
May 12
LCY10:00 amLondon City
10h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$859

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

Our best Delta deals on Washington, D.C. to London City Airport flight tickets
Delta
May 6
IAD6:10 pmWashington, D.C. Dulles Intl
9h 40m
1 stop
LCY8:50 amLondon City
May 20
LCY10:00 amLondon City
10h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$883
Delta
May 4
IAD6:10 pmWashington, D.C. Dulles Intl
9h 40m
1 stop
LCY8:50 amLondon City
May 15
LCY10:00 amLondon City
10h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$884
Delta
May 11
DCA11:55 amWashington, D.C. Reagan-National
15h 55m
2 stops
LCY8:50 amLondon City
May 19
LCY10:00 amLondon City
17h 03m
2 stops
DCA10:03 pmWashington, D.C. Reagan-National
$897

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 April 19, 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

Cheapest round-trip

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 8/23

8:20 pm-12:35 pm

1 stop11h 15m

London City

Fri 10/23

9:15 am-4:45 pm

1 stop12h 30m

$830

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 9/22

8:20 pm-12:35 pm

1 stop11h 15m

London City

Wed 9/30

9:15 am-4:45 pm

1 stop12h 30m

$831

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 9/1

8:20 pm-6:40 pm

1 stop17h 20m

London City

Thu 10/15

9:15 am-4:45 pm

1 stop12h 30m

$834

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 5/3

5:40 pm-9:30 am

1 stop10h 50m

London City

Tue 5/12

9:20 am-3:35 pm

1 stop11h 15m

$852
Quickest round-trip

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 5/3

5:40 pm-9:10 am

1 stop10h 30m

London City

Tue 5/12

10:00 am-3:35 pm

1 stop10h 35m

$857

BaltimoreLondon

BWI - LCY

BWILCY

Baltimore/Washington

Sat 9/19

6:10 pm-7:55 am

2 stops32h 45m

London City

Wed 9/30

10:00 am-8:08 am

2 stops27h 08m

$894

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Mon 5/11

11:55 am-8:50 am

2 stops15h 55m

London City

Tue 5/19

10:00 am-10:03 pm

2 stops17h 03m

$897

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Mon 7/27

8:32 am-9:10 am

2 stops19h 38m

London City

Tue 8/11

7:55 pm-4:48 pm

2 stops25h 53m

$986

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 7/28

8:32 am-9:00 am

2 stops19h 28m

London City

Tue 8/11

7:55 pm-4:48 pm

2 stops25h 53m

$1,034

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Thu 4/30

6:59 am-5:55 pm

2 stops29h 56m

London City

Mon 5/4

9:45 am-8:53 am

2 stops28h 08m

$1,063

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

Can stopping save me money on Washington, D.C. to London City Airport flights?

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. to London City Airport flight.

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

9h 40m

Direct flights

None
The fastest flight from Washington, D.C. to London City Airport takes 9h 40m
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.
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Frequently asked questions about flying 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 9h 40m.

  • 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
Milton Keynes
Luton
Dover
Hayes
Slough
Crawley
Wembley
Stansted
Croydon
Dartford
Brentwood
Cobham
Folkestone
Guildford
Romford
Harrow
Watford
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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