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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $319

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 11/24. 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

Virgin Atlantic Logo
5:25 pm - 8:50 amIAD-LCY
10h 25m1 stop
Virgin Atlantic Logo
9:20 am - 3:35 pmLCY-IAD
11h 15m1 stop
$623Virgin Atlantic
Find Deal
Sun, Oct 12 - Tue, Oct 21
SWISS Logo
8:30 pm - 6:40 pmIAD-LCY
17h 10m1 stop
SWISS Logo
9:15 am - 4:40 pmLCY-IAD
12h 25m1 stop
$639SWISS
Find Deal
Tue, Nov 4 - Tue, Nov 11
Delta Logo
5:25 pm - 8:50 amIAD-LCY
10h 25m1 stop
Delta Logo
10:00 am - 3:35 pmLCY-IAD
10h 35m1 stop
$642Delta
Find Deal
Sun, Oct 12 - Tue, Oct 21
SWISS Logo
8:45 pm - 8:50 amIAD-LCY
31h 05m1 stop
SWISS Logo
9:25 am - 4:15 pmLCY-IAD
11h 50m1 stop
$643SWISS
Find Deal
Wed, Oct 8 - Tue, Oct 14
KLM Logo
7:05 pm - 9:30 amIAD-LCY
10h 25m1 stop
KLM Logo
8:40 am - 4:05 pmLCY-IAD
12h 25m1 stop
$644KLM
Find Deal
Wed, Oct 29 - Tue, Nov 4
ITA Airways Logo
5:45 pm - 10:55 amIAD-LCY
13h 10m1 stop
ITA Airways Logo
4:45 pm - 3:40 pmLCY-IAD
26h 55m1 stop
$649ITA Airways
Find Deal
Tue, Mar 10 - Wed, Mar 25
KLM Logo
5:25 pm - 8:50 amIAD-LCY
10h 25m1 stop
KLM Logo
8:40 am - 5:05 pmLCY-IAD
12h 25m1 stop
$654KLM
Find Deal
Tue, Oct 21 - Tue, Oct 28
Multiple Airlines Logo
5:45 pm - 12:30 pmIAD-LCY
13h 45m1 stop
Multiple Airlines Logo
8:45 am - 8:00 pmLCY-IAD
16h 15m1 stop
$670Multiple Airlines
Find Deal
Tue, Oct 14 - Wed, Oct 22
ITA Airways Logo
4:30 pm - 10:05 amIAD-LCY
12h 35m1 stop
ITA Airways Logo
4:50 pm - 2:40 pmLCY-IAD
26h 50m1 stop
$671ITA Airways
Find Deal
Sun, Oct 5 - Wed, Oct 15
Multiple Airlines Logo
12:35 pm - 12:30 pmIAD-LCY
18h 55m2 stops
Multiple Airlines Logo
8:45 am - 3:15 pmLCY-IAD
11h 30m1 stop
$674Multiple Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21

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

Our best ITA Airways deals on Washington, D.C. Dulles Intl Airport to London City Airport flight tickets
ITA Airways
Mar 10
IAD5:45 pmWashington, D.C. Dulles Intl
13h 10m
1 stop
LCY10:55 amLondon City
Mar 25
LCY4:45 pmLondon City
26h 55m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$649
Find similar
ITA Airways
Oct 5
IAD4:30 pmWashington, D.C. Dulles Intl
12h 35m
1 stop
LCY10:05 amLondon City
Oct 15
LCY4:50 pmLondon City
26h 50m
1 stop
IAD2:40 pmWashington, D.C. Dulles Intl
$671
Find similar
ITA Airways
Mar 10
IAD5:45 pmWashington, D.C. Dulles Intl
13h 10m
1 stop
LCY10:55 amLondon City
Mar 23
LCY4:45 pmLondon City
26h 55m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$672
Find similar

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
Nov 4
IAD8:30 pmWashington, D.C. Dulles Intl
17h 10m
1 stop
LCY6:40 pmLondon City
Nov 11
LCY9:15 amLondon City
12h 25m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
$639
Find similar
SWISS
Oct 8
IAD8:45 pmWashington, D.C. Dulles Intl
31h 05m
1 stop
LCY8:50 amLondon City
Oct 14
LCY9:25 amLondon City
11h 50m
1 stop
IAD4:15 pmWashington, D.C. Dulles Intl
$643
Find similar
SWISS
Oct 8
IAD8:45 pmWashington, D.C. Dulles Intl
15h 30m
1 stop
LCY5:15 pmLondon City
Oct 15
LCY9:25 amLondon City
11h 50m
1 stop
IAD4:15 pmWashington, D.C. Dulles Intl
$645
Find similar

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 September 25, 2025.
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 10/12

5:25 pm-8:50 am

1 stop10h 25m

London City

Tue 10/21

9:20 am-3:35 pm

1 stop11h 15m

$623

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 11/4

8:30 pm-6:40 pm

1 stop17h 10m

London City

Tue 11/11

9:15 am-4:40 pm

1 stop12h 25m

$639

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 10/12

5:25 pm-8:50 am

1 stop10h 25m

London City

Tue 10/21

10:00 am-3:35 pm

1 stop10h 35m

$642

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 10/8

8:45 pm-8:50 am

1 stop31h 05m

London City

Tue 10/14

9:25 am-4:15 pm

1 stop11h 50m

$643

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 10/29

7:05 pm-9:30 am

1 stop10h 25m

London City

Tue 11/4

8:40 am-4:05 pm

1 stop12h 25m

$644

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 3/10

5:45 pm-10:55 am

1 stop13h 10m

London City

Wed 3/25

4:45 pm-3:40 pm

1 stop26h 55m

$649

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 10/21

5:25 pm-8:50 am

1 stop10h 25m

London City

Tue 10/28

8:40 am-5:05 pm

1 stop12h 25m

$654

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 10/14

5:45 pm-12:30 pm

1 stop13h 45m

London City

Wed 10/22

8:45 am-8:00 pm

1 stop16h 15m

$670

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 10/5

4:30 pm-10:05 am

1 stop12h 35m

London City

Wed 10/15

4:50 pm-2:40 pm

1 stop26h 50m

$671

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 10/14

12:35 pm-12:30 pm

2 stops18h 55m

London City

Tue 10/21

8:45 am-3:15 pm

1 stop11h 30m

$674

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 day to depart on your flight to London City Airport?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. 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

Direct flights

None
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.
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  • 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 45m 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
Hounslow
Gatwick
Luton
Dover
Milton Keynes
Slough
Guildford
Hayes
Dartford
Stansted
Crawley
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Romford
Watford
Wembley
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.

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