Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to London from $321

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 9/7. 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
1 adult, Economy, 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.
Multiple Airlines Logo
5:50 pm - 2:05 pmIAD  Washington, D.C. Dulles Intl-LCY London City
15h 15m1 stop Madrid Barajas
Multiple Airlines Logo
9:15 am - 5:00 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 45m1 stop Zurich
$815Multiple Airlines
Wed, Dec 2 - Wed, Dec 9
SWISS Logo
8:10 pm - 12:50 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 40m1 stop Zurich
SWISS Logo
9:15 am - 5:00 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 45m1 stop Zurich
$816SWISS
Mon, Nov 30 - Thu, Dec 10
SWISS Logo
8:20 pm - 12:35 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 15m1 stop Zurich
SWISS Logo
9:15 am - 4:45 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Zurich
$816SWISS
Tue, Oct 6 - Tue, Oct 13
SWISS Logo
8:10 pm - 5:05 pmIAD  Washington, D.C. Dulles Intl-LCY London City
15h 55m1 stop Zurich
SWISS Logo
9:15 am - 5:00 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 45m1 stop Zurich
$816SWISS
Wed, Nov 18 - Wed, Nov 25
SWISS Logo
8:20 pm - 12:35 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 15m1 stop Zurich
SWISS Logo
9:15 am - 4:45 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Zurich
$816SWISS
Tue, Oct 6 - Wed, Oct 14
SWISS Logo
8:20 pm - 12:35 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 15m1 stop Zurich
SWISS Logo
9:15 am - 4:45 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Zurich
$816SWISS
Mon, Sep 21 - Wed, Sep 30
SWISS Logo
8:20 pm - 12:35 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 15m1 stop Zurich
SWISS Logo
9:15 am - 4:45 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Zurich
$816SWISS
Mon, Oct 12 - Wed, Oct 21
SWISS Logo
8:10 pm - 5:05 pmIAD  Washington, D.C. Dulles Intl-LCY London City
15h 55m1 stop Zurich
SWISS Logo
9:15 am - 5:00 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 45m1 stop Zurich
$816SWISS
Wed, Nov 4 - Wed, Nov 11
SWISS Logo
8:20 pm - 12:35 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 15m1 stop Zurich
SWISS Logo
9:15 am - 4:45 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Zurich
$816SWISS
Tue, Sep 22 - Tue, Sep 29
SWISS Logo
8:20 pm - 12:35 pmIAD  Washington, D.C. Dulles Intl-LCY London City
11h 15m1 stop Zurich
SWISS Logo
9:15 am - 4:45 pmLCY  London City-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Zurich
$816SWISS
Sun, Oct 11 - Tue, Oct 20

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
Sep 29
IAD8:20 pmWashington, D.C. Dulles Intl
16h 05m
1 stop
LCY5:25 pmLondon City
Oct 6
LCY9:15 amLondon City
12h 30m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$816
SWISS
Sep 22
IAD8:20 pmWashington, D.C. Dulles Intl
11h 15m
1 stop
LCY12:35 pmLondon City
Sep 30
LCY9:15 amLondon City
12h 30m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$817
SWISS
Sep 21
IAD8:20 pmWashington, D.C. Dulles Intl
11h 15m
1 stop
LCY12:35 pmLondon City
Sep 29
LCY9:15 amLondon City
12h 30m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$835

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

Our best KLM deals on Washington, D.C. to London City Airport flight tickets
KLM
Oct 11
IAD5:30 pmWashington, D.C. Dulles Intl
9h 25m
1 stop
LCY7:55 amLondon City
Oct 27
LCY9:20 amLondon City
11h 25m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$880
KLM
Sep 21
IAD6:10 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
LCY9:30 amLondon City
Sep 29
LCY10:00 amLondon City
10h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$922
KLM
Aug 19
IAD6:10 pmWashington, D.C. Dulles Intl
9h 40m
1 stop
LCY8:50 amLondon City
Aug 26
LCY10:00 amLondon City
10h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,057

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 August 12, 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 Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Wed 12/2

5:50 pm-2:05 pm

1 stop15h 15m

London City

Wed 12/9

9:15 am-5:00 pm

1 stop12h 45m

$815

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Mon 11/30

8:10 pm-12:50 pm

1 stop11h 40m

London City

Thu 12/10

9:15 am-5:00 pm

1 stop12h 45m

$816
Quickest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Tue 10/6

8:20 pm-12:35 pm

1 stop11h 15m

London City

Tue 10/13

9:15 am-4:45 pm

1 stop12h 30m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Wed 11/18

8:10 pm-5:05 pm

1 stop15h 55m

London City

Wed 11/25

9:15 am-5:00 pm

1 stop12h 45m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Tue 10/6

8:20 pm-12:35 pm

1 stop11h 15m

London City

Wed 10/14

9:15 am-4:45 pm

1 stop12h 30m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Mon 9/21

8:20 pm-12:35 pm

1 stop11h 15m

London City

Wed 9/30

9:15 am-4:45 pm

1 stop12h 30m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Mon 10/12

8:20 pm-12:35 pm

1 stop11h 15m

London City

Wed 10/21

9:15 am-4:45 pm

1 stop12h 30m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Wed 11/4

8:10 pm-5:05 pm

1 stop15h 55m

London City

Wed 11/11

9:15 am-5:00 pm

1 stop12h 45m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Tue 9/22

8:20 pm-12:35 pm

1 stop11h 15m

London City

Tue 9/29

9:15 am-4:45 pm

1 stop12h 30m

$816

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LCY London City

IADLCY

Washington, D.C. Dulles Intl

Sun 10/11

8:20 pm-12:35 pm

1 stop11h 15m

London City

Tue 10/20

9:15 am-4:45 pm

1 stop12h 30m

$816

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 7% 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 35m

Direct flights

None
The fastest flight from Washington, D.C. to London City Airport takes 9h 35m
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 9h 35m.

  • 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
Luton
Hayes
Wembley
Croydon
Dover
Stansted
Richmond
Kingston upon Thames
Harrow
Watford
Cobham
Slough
Uxbridge
Worthing
Romford
Ilford
Bedford

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 9/11
Fri 9/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $484
Flights to London Gatwick Airportfrom $379
Flights to London Stansted Airportfrom $482
Flights to London Luton Airportfrom $522
Flights to Glasgow Intl Airportfrom $549
Flights to Belfast Intl Airportfrom $655
Flights to London Southend Airportfrom $654
Flights to Belfast City Airportfrom $655