Latest deals
Insights
FAQs
Price Alerts

Cheap flights from the United Kingdom to Washington, D.C. from $315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Washington, D.C. departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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 the United Kingdom to Washington, D.C.

Recent round-trip flight deals from the United Kingdom to Washington, D.C.

Enter your travel dates to find the best prices.
JetBlue Logo
9:20 am - 5:49 pm
LHR
-
DCA
13h 29m
1 stop
JetBlue Logo
2:05 pm - 6:55 am
DCA
-
LHR
11h 50m
1 stop
$564JetBlue
Tue, Feb 24 - Tue, Mar 3
JetBlue Logo
8:05 am - 10:59 pm
LHR
-
DCA
19h 54m
1 stop
JetBlue Logo
8:55 pm - 6:55 am
DCA
-
LHR
29h 00m
1 stop
$568JetBlue
Fri, Feb 13 - Mon, Feb 23
Air Canada Logo
9:00 am - 9:56 pm
LHR
-
DCA
16h 56m
2 stops
Air Canada Logo
4:10 pm - 7:10 am
DCA
-
LHR
11h 00m
1 stop
$593Air Canada
Wed, Mar 18 - Wed, Mar 25
Air Canada Logo
9:00 am - 9:56 pm
LHR
-
DCA
16h 56m
2 stops
Air Canada Logo
12:55 pm - 7:10 am
DCA
-
LHR
14h 15m
2 stops
$594Air Canada
Wed, Mar 11 - Mon, Mar 23
Multiple Airlines Logo
9:00 am - 9:56 pm
LHR
-
DCA
17h 56m
2 stops
Multiple Airlines Logo
6:00 am - 7:10 am
DCA
-
LHR
20h 10m
1 stop
$595Multiple Airlines
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
1:00 pm - 10:59 pm
LGW
-
DCA
13h 59m
1 stop
Multiple Airlines Logo
6:00 am - 6:00 am
DCA
-
LGW
20h 00m
1 stop
$609Multiple Airlines
Wed, Mar 11 - Mon, Mar 23
American Airlines Logo
12:30 pm - 1:59 pm
LGW
-
DCA
29h 29m
1 stop
American Airlines Logo
1:41 pm - 9:00 am
DCA
-
LGW
15h 19m
2 stops
$638American Airlines
Wed, Mar 18 - Wed, Mar 25
American Airlines Logo
12:30 pm - 3:54 pm
LGW
-
DCA
31h 24m
1 stop
American Airlines Logo
2:33 pm - 7:30 am
DCA
-
LGW
12h 57m
1 stop
$639American Airlines
Wed, Mar 18 - Wed, Mar 25
Icelandair Logo
12:35 pm - 10:59 pm
GLA
-
DCA
15h 24m
2 stops
Icelandair Logo
6:00 am - 9:55 am
DCA
-
GLA
22h 55m
2 stops
$725Icelandair
Thu, Feb 26 - Tue, Mar 3
Icelandair Logo
12:35 pm - 10:59 pm
GLA
-
DCA
15h 24m
2 stops
Icelandair Logo
6:00 am - 9:55 am
DCA
-
GLA
22h 55m
2 stops
$766Icelandair
Thu, Feb 26 - Tue, Mar 3

Air Canada flights from United Kingdom to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on United Kingdom to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
Mar 18
LHR9:00 amLondon Heathrow
16h 56m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
Mar 25
DCA4:10 pmWashington, D.C. Reagan-National
11h 00m
1 stop
LHR7:10 amLondon Heathrow
$593
Air Canada
Mar 11
LHR9:00 amLondon Heathrow
16h 56m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
Mar 23
DCA4:10 pmWashington, D.C. Reagan-National
11h 00m
1 stop
LHR7:10 amLondon Heathrow
$594
Air Canada
Feb 8
LHR1:25 pmLondon Heathrow
13h 31m
1 stop
DCA9:56 pmWashington, D.C. Reagan-National
Feb 14
DCA11:00 amWashington, D.C. Reagan-National
15h 10m
1 stop
LHR7:10 amLondon Heathrow
$595

Delta flights from United Kingdom to Washington, D.C. Reagan-National Airport

Our best Delta deals on United Kingdom to Washington, D.C. Reagan-National Airport flight tickets
Delta
Feb 18
LHR9:40 amLondon Heathrow
13h 10m
1 stop
DCA5:50 pmWashington, D.C. Reagan-National
Nov 18
DCA3:30 pmWashington, D.C. Reagan-National
11h 20m
1 stop
LHR7:50 amLondon Heathrow
$631
Delta
Feb 10
LHR1:05 pmLondon Heathrow
11h 47m
1 stop
DCA7:52 pmWashington, D.C. Reagan-National
Nov 23
DCA1:45 pmWashington, D.C. Reagan-National
11h 40m
1 stop
LHR6:25 amLondon Heathrow
$646
Delta
Apr 15
LHR1:25 pmLondon Heathrow
13h 09m
1 stop
DCA9:34 pmWashington, D.C. Reagan-National
May 6
DCA6:00 amWashington, D.C. Reagan-National
9h 10m
1 stop
LHR8:10 pmLondon Heathrow
$647

momondo Fare Finder

 
Customize your flight search to find flights from United Kingdom to Washington, D.C. Reagan-National 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 February 3, 2026.
Use the filters below to find and compare flights from the United Kingdom to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 2/24

9:20 am-5:49 pm

1 stop13h 29m

Washington, D.C. Reagan-National

Tue 3/3

2:05 pm-6:55 am

1 stop11h 50m

$564

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 2/13

8:05 am-10:59 pm

1 stop19h 54m

Washington, D.C. Reagan-National

Mon 2/23

8:55 pm-6:55 am

1 stop29h 00m

$568

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 3/18

9:00 am-9:56 pm

2 stops16h 56m

Washington, D.C. Reagan-National

Wed 3/25

4:10 pm-7:10 am

1 stop11h 00m

$593

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 3/11

9:00 am-9:56 pm

2 stops16h 56m

Washington, D.C. Reagan-National

Mon 3/23

12:55 pm-7:10 am

2 stops14h 15m

$594

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 2/19

9:00 am-9:56 pm

2 stops17h 56m

Washington, D.C. Reagan-National

Sun 2/22

6:00 am-7:10 am

1 stop20h 10m

$595

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 3/11

1:00 pm-10:59 pm

1 stop13h 59m

Washington, D.C. Reagan-National

Mon 3/23

6:00 am-6:00 am

1 stop20h 00m

$609

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 3/18

12:30 pm-1:59 pm

1 stop29h 29m

Washington, D.C. Reagan-National

Wed 3/25

1:41 pm-9:00 am

2 stops15h 19m

$638

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 3/18

12:30 pm-3:54 pm

1 stop31h 24m

Washington, D.C. Reagan-National

Wed 3/25

2:33 pm-7:30 am

1 stop12h 57m

$639

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Thu 2/26

12:35 pm-10:59 pm

2 stops15h 24m

Washington, D.C. Reagan-National

Tue 3/3

6:00 am-9:55 am

2 stops22h 55m

$725

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Thu 2/26

12:35 pm-10:59 pm

2 stops15h 24m

Washington, D.C. Reagan-National

Tue 3/3

6:00 am-9:55 am

2 stops22h 55m

$766

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from United Kingdom to Washington, D.C. Reagan-National 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 month to fly to Washington, D.C. Reagan-National Airport?

The month of February is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from United Kingdom, with most prices found around $560. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $624.

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $766 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from United Kingdom for as low as $634 on momondo.

Can stopping save me money on United Kingdom to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 35% on your flight if you consider stops on a United Kingdom to Washington, D.C. Reagan-National Airport flight.

Cheap United Kingdom to Washington, D.C. Reagan-National Airport flight deals and tips

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

Fastest flight time

11h 09m

Direct flights

None
The fastest flight from United Kingdom to Washington, D.C. Reagan-National Airport takes 11h 09m
There are no direct flights from United Kingdom to Washington, D.C. Reagan-National Airport. There are no popular flight routes from United Kingdom to Washington, D.C. Reagan-National Airport.
Search flight deals

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

    Prices for flights from United Kingdom to Washington, D.C. Reagan-National Airport are updated daily.

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

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from United Kingdom.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from United Kingdom.

I’m not ready to book a flight from United Kingdom to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for United Kingdom to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Washington, D.C. Reagan-National 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
Thu 3/5
Thu 3/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.