Flights to Washington, D.C.

£268 Cheap flights to Washington, D.C.

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Washington, D.C. departing on 8/5. 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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0 bags

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Find the cheapest flights from the United Kingdom to Washington, D.C.

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:40 - 19:20
LGW
-
IAD
32h 40m
1 stop
Icelandair Logo
20:30 - 11:45
IAD
-
LGW
10h 15m
1 stop
£411Icelandair
Fri, 15 May - Mon, 25 May
JetBlue Logo
08:40 - 17:46
LHR
-
DCA
14h 06m
1 stop
JetBlue Logo
06:00 - 20:45
DCA
-
LHR
9h 45m
1 stop
£412JetBlue
Wed, 22 Apr - Sat, 25 Apr
British Airways Logo
17:05 - 20:20
LHR
-
IAD
8h 15mdirect
British Airways Logo
19:15 - 07:45
IAD
-
LHR
7h 30mdirect
£414British Airways
Fri, 5 Jun - Sat, 13 Jun
British Airways Logo
17:05 - 20:20
LHR
-
IAD
8h 15mdirect
British Airways Logo
19:15 - 07:45
IAD
-
LHR
7h 30mdirect
£415British Airways
Fri, 21 Aug - Mon, 31 Aug
American Airlines Logo
09:15 - 16:30
LHR
-
IAD
12h 15m
1 stop
American Airlines Logo
17:20 - 12:50
IAD
-
LHR
14h 30m
1 stop
£418American Airlines
Sat, 22 Aug - Wed, 2 Sep
American Airlines Logo
13:00 - 21:26
LHR
-
DCA
13h 26m
1 stop
American Airlines Logo
13:49 - 09:05
DCA
-
LHR
14h 16m
1 stop
£418American Airlines
Fri, 21 Aug - Mon, 31 Aug
United Airlines Logo
12:15 - 15:30
LHR
-
IAD
8h 15mdirect
United Airlines Logo
06:15 - 21:35
IAD
-
LHR
10h 20m
1 stop
£430United Airlines
Fri, 21 Aug - Mon, 31 Aug
United Airlines Logo
07:45 - 15:53
LHR
-
DCA
13h 08m
1 stop
United Airlines Logo
14:00 - 06:45
DCA
-
LHR
11h 45m
1 stop
£433United Airlines
Sat, 22 Aug - Tue, 1 Sep
Lufthansa Logo
09:15 - 16:05
LCY
-
IAD
11h 50m
1 stop
Lufthansa Logo
17:55 - 17:55
IAD
-
LCY
19h 00m
1 stop
£457Lufthansa
Wed, 22 Apr - Tue, 28 Apr
Lufthansa Logo
09:15 - 19:55
LCY
-
IAD
15h 40m
1 stop
Lufthansa Logo
17:55 - 17:55
IAD
-
LCY
19h 00m
1 stop
£466Lufthansa
Tue, 14 Apr - Tue, 21 Apr

momondo Fare Finder

 
Locate flights to Washington, D.C. that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 23 March 2026.
Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 15/5

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Mon 25/5

20:30-11:45

1 stop10h 15m

£411

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 22/4

08:40-17:46

1 stop14h 06m

Washington, D.C. Reagan-National

Sat 25/4

06:00-20:45

1 stop9h 45m

£412
Fastest return journey

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 5/6

17:05-20:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sat 13/6

19:15-07:45

Nonstop7h 30m

£414

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 21/8

17:05-20:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Mon 31/8

19:15-07:45

Nonstop7h 30m

£415

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 22/8

09:15-16:30

1 stop12h 15m

Washington, D.C. Dulles Intl

Wed 2/9

17:20-12:50

1 stop14h 30m

£418

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 21/8

13:00-21:26

1 stop13h 26m

Washington, D.C. Reagan-National

Mon 31/8

13:49-09:05

1 stop14h 16m

£418

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 21/8

12:15-15:30

Nonstop8h 15m

Washington, D.C. Dulles Intl

Mon 31/8

06:15-21:35

1 stop10h 20m

£430

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 22/8

07:45-15:53

1 stop13h 08m

Washington, D.C. Reagan-National

Tue 1/9

14:00-06:45

1 stop11h 45m

£433

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 22/4

09:15-16:05

1 stop11h 50m

Washington, D.C. Dulles Intl

Tue 28/4

17:55-17:55

1 stop19h 00m

£457

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 14/4

09:15-19:55

1 stop15h 40m

Washington, D.C. Dulles Intl

Tue 21/4

17:55-17:55

1 stop19h 00m

£466

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

Washington, D.C. flights insights and trends

Explore insights for your Washington, D.C. flight to craft the best travel plan

What is the cheapest month to fly to Washington, D.C.?

The cheapest month to fly to Washington, D.C. from United Kingdom is in February. Flight prices, which tend to average around £448, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in February, then you should wait until January to fly from United Kingdom, when ticket prices are also cheap, with an average price of £464.

What is the absolute cheapest flight to Washington, D.C.?

Users booking trips to Washington, D.C. from New York found flights 82% cheaper than the average price of flights to Washington, D.C.. To find the cheapest price to Washington, D.C. from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from United Kingdom is on a Thursday. momondo users have found tickets for Thursday departures for as low as £581. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £629.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At midday is the cheapest time of day to fly from United Kingdom to Washington, D.C. when you can find flight prices for as low as £585. Flying to Washington, D.C. at midday is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the morning, with an average ticket price of £598. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Washington, D.C. from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around £554 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from United Kingdom for as low as £518 on momondo.

Cheapest flights to Washington, D.C.

Find the cheapest flights to Washington, D.C. from your nearest city or airport
CHEAPEST MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJanuary15% cheaperFlying from London Heathrow Airport to Washington, D.C. costs on average just £460 in January
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJuly21% more expensiveIt costs about £657 for flights to Washington, D.C. from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJuly326% more users visitedMore momondo users searched in flights to Washington, D.C. from London Heathrow Airport in July than any other month

Cheap Washington, D.C. flight deals and tips

Summary info about Washington, D.C. flight prices, duration and airlines

Best One-Way Price

£268

Best Round-Trip Price

£411

Fastest flight time

17h 18m

Popular in

July
The best one-way flight price to Washington, D.C. from United Kingdom in the last 72 hours is £268 (London Gatwick to Baltimore/Washington).
The best round-trip flight price to Washington, D.C. from United Kingdom in the last 72 hours is £411 (London Gatwick to Washington, D.C. Dulles Intl).
The fastest flight to Washington, D.C. from United Kingdom takes 17h 18m (London Heathrow to Washington, D.C. Reagan-National).
July has the highest demand for flights to Washington, D.C., with a 15% price increase on average.

Frequently asked questions about flying to Washington, D.C.

When is it best to fly to Washington, D.C. to go sightseeing?

The best time to plan to fly to Washington, D.C. to go sightseeing would be when the temperature is not unbearable and the chance of rain is only moderate. Considering those guidelines, May seem like the best times of year to plan your visit.

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

The ideal time to book your flight to Washington, D.C. is 57 days in advance, when prices tend to average £532. Keep in mind that you might be able to find cheaper flights to Washington, D.C. at any time. In fact, our users found flights for as low as £411 in the past 72 hours.

Is there an alternative airport near Washington, D.C.?

Finding an alternative and possibly cheaper destination airport near Washington, D.C. is possible. If you are planning a flight to Washington, D.C., consider booking flights to Washington, D.C. Reagan-National Airport (4 mi from Washington, D.C. city centre) or Baltimore/Washington Airport (27 mi from Washington, D.C. city centre).

Is there a cheaper alternative to flying into Washington, D.C.?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport where the average price is £273. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

Are there flights to Capitol Hill?

Yes, you can get a flight to Washington, D.C. Reagan-National airport in Washington, D.C. (3.3 mi from Capitol Hill).

What’s the closest airport to White House?

The closest airport to White House is Washington, D.C. Reagan-National, 3.1 mi away.

When did momondo last update prices for flights to Washington, D.C.?

Prices for flights to Washington, D.C. are refreshed on a daily basis.

How many operators does momondo search for flights to Washington, D.C.?

How old do you have to be to fly to Washington, D.C.?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
College Park
Arlington
Fairfax
Linthicum Heights
Glen Burnie
Laurel
Lutherville Timonium
Ellicott City
Cambridge
Lexington Park
Westminster
Woodbridge
Bethesda
Alexandria
Silver Spring
Rockville
Owings Mills
Landover
National Harbor

Why use momondo?

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

Finding the right flight to Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. with this policy.

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

Once all potential Washington, D.C. flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

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

If you are not ready to book a flight to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to Washington, D.C. and let you know when they change.

An easier way to manage your Washington, D.C. trip

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1 adult
Wed 22/4
Wed 29/4

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