Flights to Washington, D.C.

£236 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 1/9. 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

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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.
American Airlines Logo
17:05 - 20:20
LHR
-
IAD
8h 15mdirect
American Airlines Logo
22:25 - 10:50
IAD
-
LHR
7h 25mdirect
£485American Airlines
Mon, 24 Aug - Sun, 20 Sep
SWISS Logo
09:15 - 16:45
LCY
-
IAD
12h 30m
1 stop
SWISS Logo
20:20 - 12:35
IAD
-
LCY
11h 15m
1 stop
£485SWISS
Thu, 2 Jul - Sun, 5 Jul
Lufthansa Logo
07:30 - 16:05
LHR
-
IAD
13h 35m
1 stop
Lufthansa Logo
18:30 - 06:55
IAD
-
LHR
7h 25mdirect
£486Lufthansa
Thu, 30 Jul - Mon, 3 Aug
Air Canada Logo
08:30 - 21:19
LHR
-
IAD
17h 49m
2 stops
Air Canada Logo
15:45 - 11:50
IAD
-
LHR
15h 05m
2 stops
£487Air Canada
Tue, 7 Jul - Thu, 30 Jul
British Airways Logo
17:25 - 23:33
LHR
-
DCA
11h 08m
1 stop
British Airways Logo
16:59 - 08:00
DCA
-
LHR
10h 01m
1 stop
£488British Airways
Wed, 2 Sep - Fri, 11 Sep
British Airways Logo
15:00 - 23:53
LHR
-
DCA
13h 53m
1 stop
British Airways Logo
20:00 - 08:00
DCA
-
LHR
31h 00m
1 stop
£488British Airways
Mon, 6 Jul - Sat, 11 Jul
Virgin Atlantic Logo
10:25 - 19:35
LGW
-
IAD
14h 10m
1 stop
Virgin Atlantic Logo
12:30 - 09:25
IAD
-
LGW
15h 55m
2 stops
£494Virgin Atlantic
Thu, 8 Oct - Tue, 13 Oct
Virgin Atlantic Logo
10:25 - 23:04
LGW
-
DCA
17h 39m
2 stops
Virgin Atlantic Logo
17:00 - 16:00
DCA
-
LGW
18h 00m
2 stops
£497Virgin Atlantic
Wed, 7 Oct - Mon, 12 Oct
Icelandair Logo
21:25 - 19:25
LHR
-
BWI
27h 00m
1 stop
Icelandair Logo
20:30 - 20:20
BWI
-
LHR
18h 50m
1 stop
£523Icelandair
Tue, 7 Jul - Tue, 11 Aug
Icelandair Logo
13:05 - 19:25
LHR
-
BWI
11h 20m
1 stop
Icelandair Logo
20:30 - 11:55
BWI
-
LHR
10h 25m
1 stop
£526Icelandair
Mon, 27 Jul - Mon, 14 Sep

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 14 June 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
Fastest return journey

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 24/8

17:05-20:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sun 20/9

22:25-10:50

Nonstop7h 25m

£485

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 2/7

09:15-16:45

1 stop12h 30m

Washington, D.C. Dulles Intl

Sun 5/7

20:20-12:35

1 stop11h 15m

£485

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 30/7

07:30-16:05

1 stop13h 35m

Washington, D.C. Dulles Intl

Mon 3/8

18:30-06:55

Nonstop7h 25m

£486

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 7/7

08:30-21:19

2 stops17h 49m

Washington, D.C. Dulles Intl

Thu 30/7

15:45-11:50

2 stops15h 05m

£487

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 2/9

17:25-23:33

1 stop11h 08m

Washington, D.C. Reagan-National

Fri 11/9

16:59-08:00

1 stop10h 01m

£488

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 6/7

15:00-23:53

1 stop13h 53m

Washington, D.C. Reagan-National

Sat 11/7

20:00-08:00

1 stop31h 00m

£488

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 8/10

10:25-19:35

1 stop14h 10m

Washington, D.C. Dulles Intl

Tue 13/10

12:30-09:25

2 stops15h 55m

£494

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 7/10

10:25-23:04

2 stops17h 39m

Washington, D.C. Reagan-National

Mon 12/10

17:00-16:00

2 stops18h 00m

£497

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 7/7

21:25-19:25

1 stop27h 00m

Baltimore/Washington

Tue 11/8

20:30-20:20

1 stop18h 50m

£523

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Mon 27/7

13:05-19:25

1 stop11h 20m

Baltimore/Washington

Mon 14/9

20:30-11:55

1 stop10h 25m

£526

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 £445, 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 £462.

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

Users booking trips to Washington, D.C. from Boston found flights 57% 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 £574. 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 £618.

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 £575. 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 £591. 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 £545 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 £488 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 AIRPORTJanuary14% cheaperFlying from London Heathrow Airport to Washington, D.C. costs on average just £458 in January
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJuly16% more expensiveIt costs about £621 for flights to Washington, D.C. from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJuly480% 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

£236

Best Round-Trip Price

£485

Fastest flight time

8h 15m

Popular in

July
The best one-way flight price to Washington, D.C. from United Kingdom in the last 5 days is £236 (London Gatwick to Baltimore/Washington).
The best round-trip flight price to Washington, D.C. from United Kingdom in the last 5 days is £485 (London Heathrow to Washington, D.C. Dulles Intl).
The fastest flight to Washington, D.C. from United Kingdom takes 8h 15m (London Heathrow to Baltimore/Washington).
July has the highest demand for flights to Washington, D.C., with a 13% 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 £525. 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 £409 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 Washington, D.C. Reagan-National Airport where the average price is £254. 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 Union Station?

The closest airport to Union Station is Washington, D.C. Reagan-National, 3.6 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
Alexandria
College Park
Springfield
Fairfax
Arlington
Gettysburg
Linthicum Heights
Glen Burnie
Ellicott City
Cambridge
Laurel
Lutherville Timonium
Westminster
Lexington Park
Owings Mills
Woodbridge
Bethesda
Silver Spring
Rockville
Landover

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.

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Tue 14/7
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