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Cheap flights from Washington, D.C. Reagan-National Airport to London from $345

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 11/3. 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. Reagan-National Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:20 pm - 12:45 pm
DCA
-
LCY
15h 25m
2 stops
Multiple Airlines Logo
6:45 am - 3:38 pm
LCY
-
DCA
13h 53m
2 stops
$800Multiple Airlines
Wed, Aug 26 - Tue, Sep 1
Delta Logo
3:05 pm - 9:30 am
DCA
-
LCY
13h 25m
2 stops
Delta Logo
8:25 am - 5:48 pm
LCY
-
DCA
14h 23m
2 stops
$940Delta
Wed, Sep 30 - Mon, Oct 5
Delta Logo
3:05 pm - 9:30 am
DCA
-
LCY
13h 25m
2 stops
Delta Logo
8:25 am - 5:48 pm
LCY
-
DCA
14h 23m
2 stops
$941Delta
Wed, Sep 30 - Mon, Oct 5
Delta Logo
12:00 pm - 8:50 am
DCA
-
LCY
15h 50m
2 stops
Delta Logo
7:45 am - 10:05 pm
LCY
-
DCA
19h 20m
2 stops
$1,060Delta
Tue, Jul 28 - Tue, Aug 4
Multiple Airlines Logo
6:55 pm - 5:55 pm
DCA
-
LCY
18h 00m
2 stops
Multiple Airlines Logo
9:15 am - 7:57 pm
LCY
-
DCA
15h 42m
2 stops
$1,078Multiple Airlines
Sun, Aug 2 - Fri, Aug 14
British Airways Logo
1:59 pm - 3:15 pm
DCA
-
LCY
20h 16m
2 stops
British Airways Logo
7:00 pm - 4:48 pm
LCY
-
DCA
26h 48m
2 stops
$1,138British Airways
Thu, Aug 13 - Sun, Aug 16
Multiple Airlines Logo
9:40 am - 5:25 pm
DCA
-
LCY
26h 45m
2 stops
Multiple Airlines Logo
9:15 am - 9:59 pm
LCY
-
DCA
17h 44m
2 stops
$1,150Multiple Airlines
Sat, Dec 26 - Tue, Jan 5
Delta Logo
12:05 pm - 8:10 am
DCA
-
LCY
15h 05m
2 stops
Delta Logo
8:40 am - 9:29 pm
LCY
-
DCA
17h 49m
2 stops
$1,164Delta
Fri, Dec 25 - Fri, Jan 1
British Airways Logo
4:59 pm - 6:20 pm
DCA
-
LCY
20h 21m
2 stops
British Airways Logo
7:15 pm - 5:08 pm
LCY
-
DCA
26h 53m
2 stops
$1,176British Airways
Sun, Dec 27 - Wed, Jan 6
Delta Logo
7:00 am - 4:35 pm
DCA
-
LCY
28h 35m
2 stops
Delta Logo
9:20 am - 5:30 pm
LCY
-
DCA
37h 10m
2 stops
$1,180Delta
Sun, Dec 27 - Fri, Jan 1

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to London City Airport flight tickets
Delta
Sep 30
DCA3:05 pmWashington, D.C. Reagan-National
13h 25m
2 stops
LCY9:30 amLondon City
Oct 5
LCY8:25 amLondon City
14h 23m
2 stops
DCA5:48 pmWashington, D.C. Reagan-National
$940
Delta
Sep 30
DCA3:05 pmWashington, D.C. Reagan-National
13h 25m
2 stops
LCY9:30 amLondon City
Oct 5
LCY8:25 amLondon City
14h 23m
2 stops
DCA5:48 pmWashington, D.C. Reagan-National
$941
Delta
Aug 11
DCA12:23 pmWashington, D.C. Reagan-National
13h 52m
2 stops
LCY7:15 amLondon City
Aug 18
LCY10:00 amLondon City
17h 59m
2 stops
DCA10:59 pmWashington, D.C. Reagan-National
$994

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

Our best British Airways deals on Washington, D.C. Reagan-National Airport to London City Airport flight tickets
British Airways
Aug 13
DCA1:59 pmWashington, D.C. Reagan-National
20h 16m
2 stops
LCY3:15 pmLondon City
Aug 16
LCY7:00 pmLondon City
26h 48m
2 stops
DCA4:48 pmWashington, D.C. Reagan-National
$1,138
British Airways
Dec 27
DCA4:59 pmWashington, D.C. Reagan-National
20h 21m
2 stops
LCY6:20 pmLondon City
Jan 6
LCY7:15 pmLondon City
26h 53m
2 stops
DCA5:08 pmWashington, D.C. Reagan-National
$1,176
British Airways
Dec 26
DCA1:44 pmWashington, D.C. Reagan-National
20h 46m
2 stops
LCY3:30 pmLondon City
Jan 6
LCY7:15 pmLondon City
26h 53m
2 stops
DCA5:08 pmWashington, D.C. Reagan-National
$1,236

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 July 2, 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

Cheapest round-trip

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 8/26

4:20 pm-12:45 pm

2 stops15h 25m

London City

Tue 9/1

6:45 am-3:38 pm

2 stops13h 53m

$800
Quickest round-trip

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 9/30

3:05 pm-9:30 am

2 stops13h 25m

London City

Mon 10/5

8:25 am-5:48 pm

2 stops14h 23m

$940

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 9/30

3:05 pm-9:30 am

2 stops13h 25m

London City

Mon 10/5

8:25 am-5:48 pm

2 stops14h 23m

$941

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 7/28

12:00 pm-8:50 am

2 stops15h 50m

London City

Tue 8/4

7:45 am-10:05 pm

2 stops19h 20m

$1,060

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Sun 8/2

6:55 pm-5:55 pm

2 stops18h 00m

London City

Fri 8/14

9:15 am-7:57 pm

2 stops15h 42m

$1,078

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Thu 8/13

1:59 pm-3:15 pm

2 stops20h 16m

London City

Sun 8/16

7:00 pm-4:48 pm

2 stops26h 48m

$1,138

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Sat 12/26

9:40 am-5:25 pm

2 stops26h 45m

London City

Tue 1/5

9:15 am-9:59 pm

2 stops17h 44m

$1,150

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Fri 12/25

12:05 pm-8:10 am

2 stops15h 05m

London City

Fri 1/1

8:40 am-9:29 pm

2 stops17h 49m

$1,164

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Sun 12/27

4:59 pm-6:20 pm

2 stops20h 21m

London City

Wed 1/6

7:15 pm-5:08 pm

2 stops26h 53m

$1,176

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Sun 12/27

7:00 am-4:35 pm

2 stops28h 35m

London City

Fri 1/1

9:20 am-5:30 pm

2 stops37h 10m

$1,180

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?

Delta and Iberia 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 25m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to London City Airport takes 13h 25m
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

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to London City Airport

  • 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 25m.

  • 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
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Dover
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Watford
Ilford
Cobham
Brentwood
Folkestone
Guildford
Romford
Uxbridge

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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