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Cheap flights from Washington, D.C. to London from $358

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 3/3. 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 - 12:45 pm
IAD
-
LCY
11h 15m1 stop
SWISS Logo
8:35 am - 5:40 pm
LCY
-
IAD
13h 05m1 stop
$613SWISS
Sat, Mar 7 - Sat, Mar 14
SWISS Logo
5:25 pm - 12:55 pm
IAD
-
LCY
14h 30m1 stop
SWISS Logo
9:15 am - 4:40 pm
LCY
-
IAD
12h 25m1 stop
$618SWISS
Thu, Jan 15 - Thu, Jan 22
Multiple Airlines Logo
5:15 pm - 9:20 am
IAD
-
LCY
11h 05m1 stop
Multiple Airlines Logo
9:15 am - 4:40 pm
LCY
-
IAD
12h 25m1 stop
$620Multiple Airlines
Thu, Jan 15 - Thu, Jan 22
Virgin Atlantic Logo
6:05 pm - 8:50 am
IAD
-
LCY
9h 45m1 stop
Virgin Atlantic Logo
10:00 am - 4:05 pm
LCY
-
IAD
11h 05m1 stop
$621Virgin Atlantic
Mon, Jan 26 - Mon, Feb 2
Virgin Atlantic Logo
6:05 pm - 9:30 am
IAD
-
LCY
10h 25m1 stop
Virgin Atlantic Logo
9:20 am - 4:05 pm
LCY
-
IAD
11h 45m1 stop
$634Virgin Atlantic
Sun, Jan 11 - Tue, Jan 20
Delta Logo
5:00 pm - 1:15 pm
DCA
-
LCY
15h 15m2 stops
Delta Logo
10:00 am - 10:57 pm
LCY
-
DCA
17h 57m2 stops
$664Delta
Sat, Jan 31 - Sat, Feb 7
Delta Logo
3:38 pm - 9:30 am
BWI
-
LCY
12h 52m2 stops
Delta Logo
10:00 am - 10:53 pm
LCY
-
BWI
17h 53m2 stops
$664Delta
Fri, Jan 30 - Sat, Feb 14
British Airways Logo
4:49 pm - 6:20 pm
DCA
-
LCY
20h 31m2 stops
British Airways Logo
7:15 pm - 6:54 pm
LCY
-
DCA
28h 39m2 stops
$750British Airways
Tue, Jan 6 - Tue, Jan 13
British Airways Logo
4:49 pm - 6:20 pm
DCA
-
LCY
20h 31m2 stops
British Airways Logo
5:05 pm - 9:30 pm
LCY
-
DCA
33h 25m2 stops
$755British Airways
Tue, Jan 6 - Wed, Jan 14
Multiple Airlines Logo
9:40 am - 9:15 am
DCA
-
LCY
18h 35m2 stops
Multiple Airlines Logo
9:50 am - 7:59 pm
LCY
-
DCA
15h 09m2 stops
$848Multiple Airlines
Tue, Jan 27 - Tue, Feb 3

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
Jan 26
IAD6:05 pmWashington, D.C. Dulles Intl
9h 45m
1 stop
LCY8:50 amLondon City
Feb 2
LCY10:00 amLondon City
11h 05m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$621
Find similar
Virgin Atlantic
Jan 11
IAD6:05 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
LCY9:30 amLondon City
Jan 20
LCY9:20 amLondon City
11h 45m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$634
Find similar
Virgin Atlantic
Jan 15
IAD6:05 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
LCY9:30 amLondon City
Jan 22
LCY10:00 amLondon City
11h 05m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$651
Find similar

ITA Airways flights from Washington, D.C. to London City Airport

Our best ITA Airways deals on Washington, D.C. to London City Airport flight tickets
ITA Airways
Mar 1
IAD4:45 pmWashington, D.C. Dulles Intl
13h 10m
1 stop
LCY10:55 amLondon City
Mar 9
LCY4:45 pmLondon City
26h 55m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$639
Find similar
ITA Airways
Mar 5
IAD4:45 pmWashington, D.C. Dulles Intl
14h 55m
2 stops
LCY12:40 pmLondon City
Mar 9
LCY4:40 pmLondon City
27h 00m
2 stops
IAD3:40 pmWashington, D.C. Dulles Intl
$661
Find similar
ITA Airways
Apr 14
IAD4:30 pmWashington, D.C. Dulles Intl
15h 40m
2 stops
LCY1:10 pmLondon City
Apr 27
LCY10:40 amLondon City
33h 00m
2 stops
IAD2:40 pmWashington, D.C. Dulles Intl
$677
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 December 18, 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

Sat 3/7

8:30 pm-12:45 pm

1 stop11h 15m

London City

Sat 3/14

8:35 am-5:40 pm

1 stop13h 05m

$613

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Thu 1/15

5:25 pm-12:55 pm

1 stop14h 30m

London City

Thu 1/22

9:15 am-4:40 pm

1 stop12h 25m

$618

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Thu 1/15

5:15 pm-9:20 am

1 stop11h 05m

London City

Thu 1/22

9:15 am-4:40 pm

1 stop12h 25m

$620

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 1/26

6:05 pm-8:50 am

1 stop9h 45m

London City

Mon 2/2

10:00 am-4:05 pm

1 stop11h 05m

$621

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 1/11

6:05 pm-9:30 am

1 stop10h 25m

London City

Tue 1/20

9:20 am-4:05 pm

1 stop11h 45m

$634

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Sat 1/31

5:00 pm-1:15 pm

2 stops15h 15m

London City

Sat 2/7

10:00 am-10:57 pm

2 stops17h 57m

$664

BaltimoreLondon

BWI - LCY

BWILCY

Baltimore/Washington

Fri 1/30

3:38 pm-9:30 am

2 stops12h 52m

London City

Sat 2/14

10:00 am-10:53 pm

2 stops17h 53m

$664

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 1/6

4:49 pm-6:20 pm

2 stops20h 31m

London City

Tue 1/13

7:15 pm-6:54 pm

2 stops28h 39m

$750

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 1/6

4:49 pm-6:20 pm

2 stops20h 31m

London City

Wed 1/14

5:05 pm-9:30 pm

2 stops33h 25m

$755

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 1/27

9:40 am-9:15 am

2 stops18h 35m

London City

Tue 2/3

9:50 am-7:59 pm

2 stops15h 09m

$848

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

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from Washington, D.C. to London City Airport takes 10h 15m
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

  • 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 15m.

  • 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
Wembley
Watford
Ilford
Cobham
Folkestone
Romford
Richmond
Uxbridge
Stansted

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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