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Cheap flights from Washington, D.C. Reagan-National Airport to London from $401

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. Reagan-National Airport to London departing on 4/15. 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. Reagan-National Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
1:34 pm - 8:35 am
DCA
-
LCY
14h 01m2 stops
British Airways Logo
7:15 pm - 7:56 pm
LCY
-
DCA
29h 41m2 stops
$627British Airways
Tue, Mar 31 - Mon, Apr 6
British Airways Logo
6:00 am - 8:35 am
DCA
-
LCY
21h 35m2 stops
British Airways Logo
7:15 pm - 4:47 pm
LCY
-
DCA
26h 32m2 stops
$677British Airways
Fri, Apr 17 - Mon, Apr 20
British Airways Logo
2:16 pm - 4:25 pm
DCA
-
LCY
22h 09m2 stops
British Airways Logo
7:10 pm - 6:33 pm
LCY
-
DCA
27h 23m2 stops
$692British Airways
Thu, Mar 12 - Mon, Mar 16
KLM Logo
5:09 pm - 9:30 am
DCA
-
LCY
12h 21m2 stops
KLM Logo
8:05 pm - 5:00 pm
LCY
-
DCA
24h 55m2 stops
$764KLM
Mon, Mar 9 - Sun, Mar 15
Iberia Logo
1:59 pm - 2:05 pm
DCA
-
LCY
19h 06m2 stops
Iberia Logo
7:50 am - 6:56 pm
LCY
-
DCA
16h 06m2 stops
$879Iberia
Wed, Feb 4 - Wed, Feb 11
Iberia Logo
1:59 pm - 8:50 am
DCA
-
LCY
13h 51m2 stops
Iberia Logo
7:15 pm - 4:37 pm
LCY
-
DCA
26h 22m2 stops
$889Iberia
Mon, Feb 9 - Mon, Feb 16
British Airways Logo
4:34 pm - 1:50 pm
DCA
-
LCY
17h 16m2 stops
British Airways Logo
11:30 am - 6:33 pm
LCY
-
DCA
35h 03m2 stops
$892British Airways
Sat, Mar 14 - Sat, Mar 21
Iberia Logo
1:48 pm - 8:50 am
DCA
-
LCY
15h 02m2 stops
Iberia Logo
7:15 pm - 4:37 pm
LCY
-
DCA
25h 22m2 stops
$902Iberia
Wed, Mar 18 - Mon, Mar 23
Iberia Logo
1:35 pm - 8:50 am
DCA
-
LCY
14h 15m2 stops
Iberia Logo
7:50 am - 6:56 pm
LCY
-
DCA
16h 06m2 stops
$903Iberia
Fri, Feb 6 - Wed, Feb 11
Iberia Logo
1:35 pm - 8:50 am
DCA
-
LCY
14h 15m2 stops
Iberia Logo
7:50 am - 6:56 pm
LCY
-
DCA
16h 06m2 stops
$904Iberia
Fri, Feb 6 - Wed, Feb 11

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

Our best KLM deals on Washington, D.C. Reagan-National Airport to London City Airport flight tickets
KLM
Mar 9
DCA5:09 pmWashington, D.C. Reagan-National
12h 21m
2 stops
LCY9:30 amLondon City
Mar 15
LCY8:05 pmLondon City
24h 55m
2 stops
DCA5:00 pmWashington, D.C. Reagan-National
$764
KLM
Jan 12
DCA12:55 pmWashington, D.C. Reagan-National
13h 20m
2 stops
LCY7:15 amLondon City
Jan 16
LCY7:45 amLondon City
15h 08m
2 stops
DCA5:53 pmWashington, D.C. Reagan-National
$1,756
KLM
Jan 12
DCA12:55 pmWashington, D.C. Reagan-National
13h 20m
2 stops
LCY7:15 amLondon City
Jan 17
LCY8:40 amLondon City
16h 52m
2 stops
DCA8:32 pmWashington, D.C. Reagan-National
$1,806

Iberia flights from Washington, D.C. Reagan-National Airport to London City Airport

Our best Iberia deals on Washington, D.C. Reagan-National Airport to London City Airport flight tickets
Iberia
Jan 14
DCA1:35 pmWashington, D.C. Reagan-National
14h 15m
2 stops
LCY8:50 amLondon City
Jan 21
LCY7:50 amLondon City
16h 06m
2 stops
DCA6:56 pmWashington, D.C. Reagan-National
$878
Iberia
Feb 4
DCA1:59 pmWashington, D.C. Reagan-National
19h 06m
2 stops
LCY2:05 pmLondon City
Feb 11
LCY7:50 amLondon City
16h 06m
2 stops
DCA6:56 pmWashington, D.C. Reagan-National
$879
Iberia
Feb 9
DCA1:59 pmWashington, D.C. Reagan-National
13h 51m
2 stops
LCY8:50 amLondon City
Feb 16
LCY7:15 pmLondon City
26h 22m
2 stops
DCA4:37 pmWashington, D.C. Reagan-National
$889

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National 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. Reagan-National Airport to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 3/31

1:34 pm-8:35 am

2 stops14h 01m

London City

Mon 4/6

7:15 pm-7:56 pm

2 stops29h 41m

$627

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Fri 4/17

6:00 am-8:35 am

2 stops21h 35m

London City

Mon 4/20

7:15 pm-4:47 pm

2 stops26h 32m

$677

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Thu 3/12

2:16 pm-4:25 pm

2 stops22h 09m

London City

Mon 3/16

7:10 pm-6:33 pm

2 stops27h 23m

$692

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Mon 3/9

5:09 pm-9:30 am

2 stops12h 21m

London City

Sun 3/15

8:05 pm-5:00 pm

2 stops24h 55m

$764

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 2/4

1:59 pm-2:05 pm

2 stops19h 06m

London City

Wed 2/11

7:50 am-6:56 pm

2 stops16h 06m

$879

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Mon 2/9

1:59 pm-8:50 am

2 stops13h 51m

London City

Mon 2/16

7:15 pm-4:37 pm

2 stops26h 22m

$889

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Sat 3/14

4:34 pm-1:50 pm

2 stops17h 16m

London City

Sat 3/21

11:30 am-6:33 pm

2 stops35h 03m

$892

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 3/18

1:48 pm-8:50 am

2 stops15h 02m

London City

Mon 3/23

7:15 pm-4:37 pm

2 stops25h 22m

$902

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Fri 2/6

1:35 pm-8:50 am

2 stops14h 15m

London City

Wed 2/11

7:50 am-6:56 pm

2 stops16h 06m

$903

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Fri 2/6

1:35 pm-8:50 am

2 stops14h 15m

London City

Wed 2/11

7:50 am-6:56 pm

2 stops16h 06m

$904

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. Reagan-National 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. Reagan-National to London City?

British Airways, Iberia, and United Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to London City

When to book flights from Washington, D.C. Reagan-National Airport to London City Airport

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

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

Fastest flight time

13h 51m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to London City Airport takes 13h 51m
There are no direct flights from Washington, D.C. Reagan-National Airport to London City Airport. There are no popular flight routes from Washington, D.C. Reagan-National Airport to London City Airport.
Search flight deals

  • How far is Washington, D.C. Reagan-National to London City by plane?

    Washington, D.C. Reagan-National and London City are 3671.8 mi apart from one another. In terms of flight time, this usually takes a little over 13h 51m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to London City Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. Reagan-National 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. Reagan-National Airport 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
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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to London. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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