Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to London from $331

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 4/14. 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
0 bags

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

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
8:20 pm - 12:35 pm
IAD
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$633SWISS
Sun, May 3 - Wed, May 13
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
$634SWISS
Tue, Jul 28 - Tue, Sep 29
Virgin Atlantic Logo
7:05 pm - 7:15 am
IAD
-
LCY
32h 10m
1 stop
Virgin Atlantic Logo
10:00 am - 5:05 pm
LCY
-
IAD
11h 05m
1 stop
$635Virgin Atlantic
Sun, Mar 15 - Tue, Mar 24
Virgin Atlantic Logo
7:05 pm - 5:20 pm
IAD
-
LCY
18h 15m
1 stop
Virgin Atlantic Logo
8:25 am - 3:35 pm
LCY
-
IAD
12h 10m
1 stop
$646Virgin Atlantic
Sun, Mar 22 - Tue, Mar 31
Virgin Atlantic Logo
6:10 pm - 8:50 am
IAD
-
LCY
9h 40m
1 stop
Virgin Atlantic Logo
7:00 pm - 3:35 pm
LCY
-
IAD
25h 35m
1 stop
$649Virgin Atlantic
Mon, Apr 13 - Mon, Apr 20
Virgin Atlantic Logo
7:05 pm - 8:50 am
IAD
-
LCY
9h 45m
1 stop
Virgin Atlantic Logo
9:20 am - 5:05 pm
LCY
-
IAD
11h 45m
1 stop
$651Virgin Atlantic
Sun, Mar 15 - Tue, Mar 24
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
$652SWISS
Sun, May 3 - Tue, May 12
KLM Logo
7:05 pm - 8:50 am
IAD
-
LCY
9h 45m
1 stop
KLM Logo
9:20 am - 5:05 pm
LCY
-
IAD
11h 45m
1 stop
$653KLM
Mon, Mar 16 - Wed, Mar 25
Lufthansa Logo
3:25 pm - 5:55 pm
IAD
-
LCY
21h 30m
1 stop
Lufthansa Logo
9:15 am - 4:05 pm
LCY
-
IAD
11h 50m
1 stop
$655Lufthansa
Wed, Aug 19 - Wed, Sep 9
SWISS Logo
8:20 pm - 6:40 pm
IAD
-
LCY
17h 20m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$656SWISS
Wed, Aug 19 - Wed, Sep 9

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
May 3
IAD8:20 pmWashington, D.C. Dulles Intl
11h 15m
1 stop
LCY12:35 pmLondon City
May 13
LCY9:15 amLondon City
12h 30m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$633
SWISS
Jul 28
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
$634
SWISS
May 3
IAD8:20 pmWashington, D.C. Dulles Intl
11h 15m
1 stop
LCY12:35 pmLondon City
May 12
LCY9:15 amLondon City
12h 30m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$652

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

Our best Virgin Atlantic deals on Washington, D.C. Dulles Intl Airport to London City Airport flight tickets
Virgin Atlantic
Mar 15
IAD7:05 pmWashington, D.C. Dulles Intl
32h 10m
1 stop
LCY7:15 amLondon City
Mar 24
LCY10:00 amLondon City
11h 05m
1 stop
IAD5:05 pmWashington, D.C. Dulles Intl
$635
Virgin Atlantic
Mar 22
IAD7:05 pmWashington, D.C. Dulles Intl
18h 15m
1 stop
LCY5:20 pmLondon City
Mar 31
LCY8:25 amLondon City
12h 10m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$646
Virgin Atlantic
Apr 13
IAD6:10 pmWashington, D.C. Dulles Intl
9h 40m
1 stop
LCY8:50 amLondon City
Apr 20
LCY7:00 pmLondon City
25h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$649

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 March 4, 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 5/3

8:20 pm-12:35 pm

1 stop11h 15m

London City

Wed 5/13

9:15 am-4:45 pm

1 stop12h 30m

$633

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 7/28

8:20 pm-12:35 pm

1 stop11h 15m

London City

Tue 9/29

9:15 am-4:45 pm

1 stop12h 30m

$634

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 3/15

7:05 pm-7:15 am

1 stop32h 10m

London City

Tue 3/24

10:00 am-5:05 pm

1 stop11h 05m

$635

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 3/22

7:05 pm-5:20 pm

1 stop18h 15m

London City

Tue 3/31

8:25 am-3:35 pm

1 stop12h 10m

$646

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 4/13

6:10 pm-8:50 am

1 stop9h 40m

London City

Mon 4/20

7:00 pm-3:35 pm

1 stop25h 35m

$649

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 3/15

7:05 pm-8:50 am

1 stop9h 45m

London City

Tue 3/24

9:20 am-5:05 pm

1 stop11h 45m

$651

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 5/3

8:20 pm-12:35 pm

1 stop11h 15m

London City

Tue 5/12

9:15 am-4:45 pm

1 stop12h 30m

$652

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 3/16

7:05 pm-8:50 am

1 stop9h 45m

London City

Wed 3/25

9:20 am-5:05 pm

1 stop11h 45m

$653

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 8/19

3:25 pm-5:55 pm

1 stop21h 30m

London City

Wed 9/9

9:15 am-4:05 pm

1 stop11h 50m

$655

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 8/19

8:20 pm-6:40 pm

1 stop17h 20m

London City

Wed 9/9

9:15 am-4:45 pm

1 stop12h 30m

$656

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. 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?

United Airlines, KLM, and Delta 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

9h 40m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to London City Airport takes 9h 40m
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. 9h 40m 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
Hounslow
Milton Keynes
Luton
Dover
Slough
Crawley
Hayes
Wembley
Dartford
Croydon
Brentwood
Harrow
Watford
Guildford
Stansted
Cobham
Folkestone
Romford
Richmond

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.

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 4/3
Fri 4/10
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 $400
Flights to London Gatwick Airportfrom $347
Flights to London Stansted Airportfrom $345
Flights to London Luton Airportfrom $342
Flights to Glasgow Intl Airportfrom $400
Flights to Belfast Intl Airportfrom $519
Flights to London Southend Airportfrom $431
Flights to Belfast City Airportfrom $526