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Cheap flights from Washington, D.C. Reagan-National Airport to London from $409

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 12/8. 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

Logo
3:20 pm - 12:50 pmDCA-LCY
17h 30m2 stops
Logo
7:10 pm - 5:25 pmLCY-DCA
27h 15m2 stops
$654
Find Deal
Mon, Oct 27 - Tue, Nov 4
Logo
11:05 am - 8:35 amDCA-LCY
16h 30m2 stops
Logo
6:15 pm - 3:31 pmLCY-DCA
26h 16m2 stops
$659
Find Deal
Wed, Nov 5 - Mon, Nov 10
Logo
3:30 pm - 12:50 pmDCA-LCY
17h 20m2 stops
Logo
7:10 pm - 5:25 pmLCY-DCA
27h 15m2 stops
$670
Find Deal
Tue, Oct 28 - Tue, Nov 4
Logo
3:30 pm - 12:50 pmDCA-LCY
17h 20m2 stops
Logo
7:10 pm - 5:25 pmLCY-DCA
27h 15m2 stops
$671
Find Deal
Wed, Oct 29 - Wed, Nov 5
Logo
3:30 pm - 12:50 pmDCA-LCY
16h 20m2 stops
Logo
7:10 pm - 6:23 pmLCY-DCA
28h 13m2 stops
$679
Find Deal
Wed, Nov 5 - Wed, Nov 12
Logo
3:00 pm - 12:30 pmDCA-LCY
16h 30m2 stops
Logo
8:45 am - 10:43 pmLCY-DCA
18h 58m2 stops
$685
Find Deal
Tue, Oct 14 - Tue, Oct 21
Logo
4:00 pm - 12:50 pmDCA-LCY
15h 50m2 stops
Logo
7:10 pm - 5:25 pmLCY-DCA
27h 15m2 stops
$695
Find Deal
Thu, Nov 6 - Tue, Nov 11
Logo
4:00 pm - 12:50 pmDCA-LCY
15h 50m2 stops
Logo
9:15 am - 10:16 pmLCY-DCA
18h 01m2 stops
$701
Find Deal
Mon, Nov 17 - Wed, Apr 8
British Airways Logo
4:38 pm - 1:40 pmDCA-LCY
16h 02m2 stops
British Airways Logo
3:30 pm - 5:39 pmLCY-DCA
31h 09m2 stops
$780British Airways
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Wed, Oct 8 - Mon, Oct 13
Delta Logo
12:15 pm - 7:15 amDCA-LCY
14h 00m2 stops
Delta Logo
10:00 am - 11:04 pmLCY-DCA
18h 04m2 stops
$915Delta
Find Deal
Wed, Oct 8 - Mon, Oct 13

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 September 15, 2025.
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

Mon 10/27

3:20 pm-12:50 pm

2 stops17h 30m

London City

Tue 11/4

7:10 pm-5:25 pm

2 stops27h 15m

$654

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 11/5

11:05 am-8:35 am

2 stops16h 30m

London City

Mon 11/10

6:15 pm-3:31 pm

2 stops26h 16m

$659

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 10/28

3:30 pm-12:50 pm

2 stops17h 20m

London City

Tue 11/4

7:10 pm-5:25 pm

2 stops27h 15m

$670

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 10/29

3:30 pm-12:50 pm

2 stops17h 20m

London City

Wed 11/5

7:10 pm-5:25 pm

2 stops27h 15m

$671

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 11/5

3:30 pm-12:50 pm

2 stops16h 20m

London City

Wed 11/12

7:10 pm-6:23 pm

2 stops28h 13m

$679

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 10/14

3:00 pm-12:30 pm

2 stops16h 30m

London City

Tue 10/21

8:45 am-10:43 pm

2 stops18h 58m

$685

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Thu 11/6

4:00 pm-12:50 pm

2 stops15h 50m

London City

Tue 11/11

7:10 pm-5:25 pm

2 stops27h 15m

$695

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Mon 11/17

4:00 pm-12:50 pm

2 stops15h 50m

London City

Wed 4/8

9:15 am-10:16 pm

2 stops18h 01m

$701

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 10/8

4:38 pm-1:40 pm

2 stops16h 02m

London City

Mon 10/13

3:30 pm-5:39 pm

2 stops31h 09m

$780

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Wed 10/8

12:15 pm-7:15 am

2 stops14h 00m

London City

Mon 10/13

10:00 am-11:04 pm

2 stops18h 04m

$915

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 day to depart on your flight to London City Airport?

The cheapest day to depart from Washington, D.C. Reagan-National 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. Reagan-National 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. 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

Direct flights

None
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.
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  • 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 14h 00m.

  • 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
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Wembley
Richmond
Croydon

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.

An easier way to manage your London City Airport trip

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