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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $370

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. Dulles Intl Airport to London departing on 2/22. 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. Dulles Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
8:30 pm - 12:55 pm
IAD
-
LCY
11h 25m1 stop
SWISS Logo
9:15 am - 4:40 pm
LCY
-
IAD
12h 25m1 stop
$573SWISS
Sun, Jan 18 - Tue, Jan 27
Multiple Airlines Logo
5:05 pm - 10:25 am
IAD
-
LCY
12h 20m1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m1 stop
$586Multiple Airlines
Wed, Jan 28 - Tue, Feb 3
Multiple Airlines Logo
5:05 pm - 10:25 am
IAD
-
LCY
12h 20m1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m1 stop
$587Multiple Airlines
Wed, Feb 25 - Tue, Mar 3
Multiple Airlines Logo
5:05 pm - 10:25 am
IAD
-
LCY
12h 20m1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m1 stop
$588Multiple Airlines
Wed, Feb 18 - Tue, Feb 24
SWISS Logo
8:30 pm - 12:55 pm
IAD
-
LCY
11h 25m1 stop
SWISS Logo
9:15 am - 5:40 pm
LCY
-
IAD
12h 25m1 stop
$591SWISS
Tue, Mar 3 - Thu, Mar 12
SWISS Logo
8:30 pm - 12:55 pm
IAD
-
LCY
11h 25m1 stop
SWISS Logo
9:15 am - 5:40 pm
LCY
-
IAD
12h 25m1 stop
$592SWISS
Tue, Mar 3 - Tue, Mar 10
SWISS Logo
5:25 pm - 12:55 pm
IAD
-
LCY
14h 30m1 stop
SWISS Logo
9:20 am - 8:15 pm
LCY
-
IAD
15h 55m1 stop
$596SWISS
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
5:05 pm - 8:35 am
IAD
-
LCY
10h 30m1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m1 stop
$599Multiple Airlines
Sun, Jan 18 - Tue, Jan 27
Multiple Airlines Logo
5:05 pm - 8:35 am
IAD
-
LCY
10h 30m1 stop
Multiple Airlines Logo
6:50 am - 3:35 pm
LCY
-
IAD
13h 45m1 stop
$602Multiple Airlines
Sun, Jan 18 - Tue, Jan 27
SWISS Logo
8:30 pm - 12:55 pm
IAD
-
LCY
11h 25m1 stop
SWISS Logo
9:15 am - 4:40 pm
LCY
-
IAD
12h 25m1 stop
$604SWISS
Thu, Feb 5 - Tue, Feb 10

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

Our best SWISS deals on Washington, D.C. Dulles Intl Airport to London City Airport flight tickets
SWISS
Jan 18
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Jan 27
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$573
SWISS
Mar 3
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Mar 12
LCY9:15 amLondon City
12h 25m
1 stop
IAD5:40 pmWashington, D.C. Dulles Intl
$591
SWISS
Mar 3
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
LCY12:55 pmLondon City
Mar 10
LCY9:15 amLondon City
12h 25m
1 stop
IAD5:40 pmWashington, D.C. Dulles Intl
$592

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

Our best Lufthansa deals on Washington, D.C. Dulles Intl Airport to London City Airport flight tickets
Lufthansa
Mar 19
IAD7:00 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
LCY9:20 amLondon City
Mar 31
LCY9:15 amLondon City
11h 50m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$634
Lufthansa
Mar 19
IAD7:00 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
LCY9:20 amLondon City
Mar 23
LCY9:50 amLondon City
15h 25m
1 stop
IAD9:15 pmWashington, D.C. Dulles Intl
$639
Lufthansa
Feb 15
IAD10:00 pmWashington, D.C. Dulles Intl
14h 40m
1 stop
LCY5:40 pmLondon City
Feb 23
LCY9:50 amLondon City
15h 25m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
$640

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Sun 1/18

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 1/27

9:15 am-4:40 pm

1 stop12h 25m

$573

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 1/28

5:05 pm-10:25 am

1 stop12h 20m

London City

Tue 2/3

6:50 am-3:35 pm

1 stop13h 45m

$586

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 2/25

5:05 pm-10:25 am

1 stop12h 20m

London City

Tue 3/3

6:50 am-3:35 pm

1 stop13h 45m

$587

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 2/18

5:05 pm-10:25 am

1 stop12h 20m

London City

Tue 2/24

6:50 am-3:35 pm

1 stop13h 45m

$588

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 3/3

8:30 pm-12:55 pm

1 stop11h 25m

London City

Thu 3/12

9:15 am-5:40 pm

1 stop12h 25m

$591

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 3/3

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 3/10

9:15 am-5:40 pm

1 stop12h 25m

$592

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 1/28

5:25 pm-12:55 pm

1 stop14h 30m

London City

Wed 2/4

9:20 am-8:15 pm

1 stop15h 55m

$596

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 1/18

5:05 pm-8:35 am

1 stop10h 30m

London City

Tue 1/27

6:50 am-3:35 pm

1 stop13h 45m

$599

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 1/18

5:05 pm-8:35 am

1 stop10h 30m

London City

Tue 1/27

6:50 am-3:35 pm

1 stop13h 45m

$602

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Thu 2/5

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 2/10

9:15 am-4:40 pm

1 stop12h 25m

$604

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. Dulles Intl Airport 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. Dulles Intl to London City?

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

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to London City Airport (IAD to LCY) flight deals and tips

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

Fastest flight time

10h 20m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to London City Airport takes 10h 20m
There are no direct flights from Washington, D.C. Dulles Intl Airport to London City Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to London City Airport.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to London City by plane?

    London City is 3684.3 mi away from Washington, D.C. Dulles Intl. 10h 20m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to London City Airport are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to London City Airport.

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

    The travel and health documents you'll need for your trip to London City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London City Airport. It is always advisable to seek advice from your airline or a trusted 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
Luton
Hounslow
Milton Keynes
Dover
Slough
Guildford
Hayes
Crawley
Dartford
Brentwood
Watford
Wembley
Cobham
Folkestone
Romford
Richmond
Uxbridge
Chelmsford
Stansted

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to London for you.

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

All flight searches from Washington, D.C. to London on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.

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