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Cheap flights from Washington, D.C. to London from $440

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 8/31. 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
8:20 pm - 12:35 pm
IAD
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$875SWISS
Thu, Aug 20 - Fri, Sep 4
SWISS Logo
8:20 pm - 5:25 pm
IAD
-
LCY
16h 05m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$878SWISS
Sat, Aug 15 - Tue, Aug 25
KLM Logo
6:10 pm - 9:30 am
IAD
-
LCY
10h 20m
1 stop
KLM Logo
10:00 am - 3:35 pm
LCY
-
IAD
10h 35m
1 stop
$879KLM
Wed, Sep 30 - Fri, Oct 9
KLM Logo
5:40 pm - 9:30 am
IAD
-
LCY
10h 50m
1 stop
KLM Logo
10:00 am - 4:45 pm
LCY
-
IAD
10h 45m
1 stop
$880KLM
Sun, Oct 18 - Thu, Oct 29
Delta Logo
5:40 pm - 8:50 am
IAD
-
LCY
10h 10m
1 stop
Delta Logo
7:45 am - 3:35 pm
LCY
-
IAD
12h 50m
1 stop
$882Delta
Tue, Aug 11 - Wed, Aug 19
Virgin Atlantic Logo
10:40 am - 8:50 am
IAD
-
LCY
17h 10m
2 stops
Virgin Atlantic Logo
10:00 am - 3:35 pm
LCY
-
IAD
10h 35m
1 stop
$884Virgin Atlantic
Wed, Sep 30 - Tue, Oct 6
Lufthansa Logo
3:25 pm - 8:40 am
IAD
-
LCY
12h 15m
1 stop
Lufthansa Logo
9:15 am - 4:05 pm
LCY
-
IAD
11h 50m
1 stop
$885Lufthansa
Wed, Aug 12 - Wed, Aug 26
Lufthansa Logo
3:25 pm - 8:40 am
IAD
-
LCY
12h 15m
1 stop
Lufthansa Logo
9:15 am - 4:05 pm
LCY
-
IAD
11h 50m
1 stop
$886Lufthansa
Tue, Sep 1 - Fri, Sep 11
Virgin Atlantic Logo
6:10 pm - 9:30 am
IAD
-
LCY
10h 20m
1 stop
Virgin Atlantic Logo
8:25 am - 11:29 pm
LCY
-
IAD
20h 04m
2 stops
$889Virgin Atlantic
Mon, Aug 24 - Fri, Sep 4
Delta Logo
11:00 am - 7:55 am
DCA
-
LCY
15h 55m
2 stops
Delta Logo
9:20 am - 9:50 pm
LCY
-
DCA
17h 30m
2 stops
$895Delta
Tue, Sep 1 - Tue, Sep 8

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

Our best Lufthansa deals on Washington, D.C. to London City Airport flight tickets
Lufthansa
Aug 12
IAD3:25 pmWashington, D.C. Dulles Intl
12h 15m
1 stop
LCY8:40 amLondon City
Aug 26
LCY9:15 amLondon City
11h 50m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$885
Lufthansa
Sep 1
IAD3:25 pmWashington, D.C. Dulles Intl
12h 15m
1 stop
LCY8:40 amLondon City
Sep 11
LCY9:15 amLondon City
11h 50m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$886
Lufthansa
Aug 2
IAD3:25 pmWashington, D.C. Dulles Intl
12h 15m
1 stop
LCY8:40 amLondon City
Aug 19
LCY9:15 amLondon City
11h 50m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$901

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
Aug 11
IAD5:40 pmWashington, D.C. Dulles Intl
10h 10m
1 stop
LCY8:50 amLondon City
Aug 19
LCY7:45 amLondon City
12h 50m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$882
Delta
Sep 1
DCA11:00 amWashington, D.C. Reagan-National
15h 55m
2 stops
LCY7:55 amLondon City
Sep 8
LCY9:20 amLondon City
17h 30m
2 stops
DCA9:50 pmWashington, D.C. Reagan-National
$895
Delta
Oct 2
BWI9:00 amBaltimore/Washington
19h 30m
2 stops
LCY9:30 amLondon City
Oct 6
LCY9:20 amLondon City
17h 50m
2 stops
BWI10:10 pmBaltimore/Washington
$943

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 May 24, 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

Thu 8/20

8:20 pm-12:35 pm

1 stop11h 15m

London City

Fri 9/4

9:15 am-4:45 pm

1 stop12h 30m

$875

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sat 8/15

8:20 pm-5:25 pm

1 stop16h 05m

London City

Tue 8/25

9:15 am-4:45 pm

1 stop12h 30m

$878
Quickest round-trip

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 9/30

6:10 pm-9:30 am

1 stop10h 20m

London City

Fri 10/9

10:00 am-3:35 pm

1 stop10h 35m

$879

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 10/18

5:40 pm-9:30 am

1 stop10h 50m

London City

Thu 10/29

10:00 am-4:45 pm

1 stop10h 45m

$880

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 8/11

5:40 pm-8:50 am

1 stop10h 10m

London City

Wed 8/19

7:45 am-3:35 pm

1 stop12h 50m

$882

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 9/30

10:40 am-8:50 am

2 stops17h 10m

London City

Tue 10/6

10:00 am-3:35 pm

1 stop10h 35m

$884

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 8/12

3:25 pm-8:40 am

1 stop12h 15m

London City

Wed 8/26

9:15 am-4:05 pm

1 stop11h 50m

$885

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 9/1

3:25 pm-8:40 am

1 stop12h 15m

London City

Fri 9/11

9:15 am-4:05 pm

1 stop11h 50m

$886

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 8/24

6:10 pm-9:30 am

1 stop10h 20m

London City

Fri 9/4

8:25 am-11:29 pm

2 stops20h 04m

$889

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 9/1

11:00 am-7:55 am

2 stops15h 55m

London City

Tue 9/8

9:20 am-9:50 pm

2 stops17h 30m

$895

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

10h 10m

Direct flights

None
The fastest flight from Washington, D.C. to London City Airport takes 10h 10m
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.
Search flight deals

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 10h 10m.

  • 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
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Crawley
Wembley
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Ilford
Cobham
Folkestone
Uxbridge
Romford

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.

An easier way to manage your London City Airport trip

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