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Cheap flights from Washington, D.C. to London from $308

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 2/9. 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 - 12:55 pmIAD-LCY
11h 25m1 stop
SWISS Logo
9:15 am - 4:40 pmLCY-IAD
12h 25m1 stop
$612SWISS
Find Deal
Mon, Dec 8 - Tue, Dec 16
SWISS Logo
8:30 pm - 12:55 pmIAD-LCY
11h 25m1 stop
SWISS Logo
9:15 am - 4:40 pmLCY-IAD
12h 25m1 stop
$616SWISS
Find Deal
Tue, Dec 9 - Tue, Dec 16
Virgin Atlantic Logo
6:05 pm - 9:30 amIAD-LCY
10h 25m1 stop
Virgin Atlantic Logo
8:40 am - 4:05 pmLCY-IAD
12h 25m1 stop
$617Virgin Atlantic
Find Deal
Sun, Dec 7 - Tue, Dec 16
SWISS Logo
8:30 pm - 12:55 pmIAD-LCY
11h 25m1 stop
SWISS Logo
9:15 am - 4:40 pmLCY-IAD
12h 25m1 stop
$621SWISS
Find Deal
Mon, Dec 8 - Tue, Dec 16
SWISS Logo
9:30 pm - 12:55 pmIAD-LCY
11h 25m1 stop
SWISS Logo
9:15 am - 5:40 pmLCY-IAD
12h 25m1 stop
$624SWISS
Find Deal
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
5:15 pm - 9:05 amIAD-LCY
10h 50m1 stop
Multiple Airlines Logo
9:15 am - 4:40 pmLCY-IAD
12h 25m1 stop
$633Multiple Airlines
Find Deal
Wed, Feb 25 - Tue, Mar 3
ITA Airways Logo
4:45 pm - 10:55 amIAD-LCY
13h 10m1 stop
ITA Airways Logo
4:45 pm - 3:40 pmLCY-IAD
26h 55m1 stop
$634ITA Airways
Find Deal
Thu, Mar 5 - Mon, Mar 9
Delta Logo
11:10 am - 8:50 amDCA-LCY
16h 40m2 stops
Delta Logo
1:45 pm - 1:53 pmLCY-DCA
29h 08m2 stops
$659Delta
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Wed, Jan 28 - Sun, Feb 1
Delta Logo
11:10 am - 8:10 amDCA-LCY
16h 00m2 stops
Delta Logo
1:45 pm - 6:29 pmLCY-DCA
33h 44m2 stops
$660Delta
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Wed, Jan 28 - Sun, Feb 1
Multiple Airlines Logo
1:30 pm - 8:50 amDCA-LCY
14h 20m2 stops
Multiple Airlines Logo
9:15 am - 9:58 pmLCY-DCA
17h 43m2 stops
$984Multiple Airlines
Find Deal
Thu, Feb 19 - Tue, Feb 24

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
Dec 9
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Dec 16
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$616
Find similar
SWISS
Dec 8
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Dec 16
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$621
Find similar
SWISS
Jan 15
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Jan 20
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$624
Find similar

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
Jan 14
IAD10:00 pmWashington, D.C. Dulles Intl
14h 40m
1 stop
LCY5:40 pmLondon City
Jan 19
LCY9:50 amLondon City
15h 25m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
$646
Find similar
Lufthansa
Jan 14
IAD10:00 pmWashington, D.C. Dulles Intl
14h 40m
1 stop
LCY5:40 pmLondon City
Jan 19
LCY9:50 amLondon City
15h 25m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
$647
Find similar
Lufthansa
Dec 31
IAD6:00 pmWashington, D.C. Dulles Intl
18h 40m
1 stop
LCY5:40 pmLondon City
Jan 14
LCY6:10 pmLondon City
24h 50m
2 stops
IAD2:00 pmWashington, D.C. Dulles Intl
$681
Find similar

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 November 24, 2025.
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

Mon 12/8

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 12/16

9:15 am-4:40 pm

1 stop12h 25m

$612

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 12/9

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 12/16

9:15 am-4:40 pm

1 stop12h 25m

$616

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 12/7

6:05 pm-9:30 am

1 stop10h 25m

London City

Tue 12/16

8:40 am-4:05 pm

1 stop12h 25m

$617

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 12/8

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 12/16

9:15 am-4:40 pm

1 stop12h 25m

$621

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 3/17

9:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 3/24

9:15 am-5:40 pm

1 stop12h 25m

$624

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 2/25

5:15 pm-9:05 am

1 stop10h 50m

London City

Tue 3/3

9:15 am-4:40 pm

1 stop12h 25m

$633

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Thu 3/5

4:45 pm-10:55 am

1 stop13h 10m

London City

Mon 3/9

4:45 pm-3:40 pm

1 stop26h 55m

$634

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 1/28

11:10 am-8:50 am

2 stops16h 40m

London City

Sun 2/1

1:45 pm-1:53 pm

2 stops29h 08m

$659

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 1/28

11:10 am-8:10 am

2 stops16h 00m

London City

Sun 2/1

1:45 pm-6:29 pm

2 stops33h 44m

$660

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Thu 2/19

1:30 pm-8:50 am

2 stops14h 20m

London City

Tue 2/24

9:15 am-9:58 pm

2 stops17h 43m

$984

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 day to depart on your flight to London City Airport?

The cheapest day to depart from Washington, D.C. to London City Airport is on a Sunday. Travelers who choose to depart for London City Airport on a Sunday will often find tickets for as low as $680. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London City Airport on Friday is $910.

What is the cheapest time of day to depart on your flight to London City Airport?

Our most recent data shows that the best time of day to fly to London City Airport is in the evening. Flights from Washington, D.C. to London City Airport during this time can be as low as $736. Flights in the afternoon are often more expensive with an average ticket price of $875.

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

Direct flights

None
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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  • 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 45m.

  • 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
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Wembley
Folkestone
Romford
Ilford
Cobham
Stansted
Harrow
Watford

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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