Flights to Washington, D.C.

£202 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 22/1. 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

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Scandinavian Airlines Logo
07:05 - 17:15LHR-IAD
15h 10m2 stops
Scandinavian Airlines Logo
20:30 - 16:25IAD-LHR
14h 55m2 stops
£464Scandinavian Airlines
Find Deal
Thu, 5 Feb - Wed, 11 Feb
American Airlines Logo
14:45 - 13:27LHR-IAD
27h 42m1 stop
American Airlines Logo
13:08 - 09:15IAD-LHR
15h 07m1 stop
£465American Airlines
Find Deal
Thu, 25 Dec - Thu, 15 Jan
British Airways Logo
06:50 - 15:35LCY-IAD
13h 45m1 stop
British Airways Logo
17:05 - 12:40IAD-LCY
14h 35m1 stop
£465British Airways
Find Deal
Tue, 20 Jan - Mon, 26 Jan
Aer Lingus Logo
07:50 - 15:35LHR-IAD
12h 45m1 stop
Aer Lingus Logo
21:00 - 13:25IAD-LHR
11h 25m1 stop
£466Aer Lingus
Find Deal
Fri, 12 Dec - Tue, 16 Dec
Aer Lingus Logo
08:50 - 15:35LHR-IAD
11h 45m1 stop
Aer Lingus Logo
17:05 - 09:05IAD-LHR
11h 00m1 stop
£467Aer Lingus
Find Deal
Wed, 10 Dec - Sun, 28 Dec
British Airways Logo
07:50 - 15:35LHR-IAD
12h 45m1 stop
British Airways Logo
18:20 - 06:30IAD-LHR
7h 10mdirect
£468British Airways
Find Deal
Fri, 16 Jan - Sun, 18 Jan
Icelandair Logo
11:55 - 18:40LGW-BWI
11h 45m1 stop
Icelandair Logo
19:40 - 10:55BWI-LGW
10h 15m1 stop
£470Icelandair
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Fri, 9 Jan - Fri, 16 Jan
Icelandair Logo
12:15 - 18:40LHR-BWI
11h 25m1 stop
Icelandair Logo
19:40 - 19:30BWI-LHR
18h 50m1 stop
£470Icelandair
Find Deal
Thu, 11 Dec - Tue, 16 Dec
Virgin Atlantic Logo
10:55 - 00:46LHR-BWI
18h 51m1 stop
Virgin Atlantic Logo
14:10 - 13:30BWI-LHR
18h 20m1 stop
£474Virgin Atlantic
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Sat, 4 Apr - Wed, 15 Apr
Virgin Atlantic Logo
10:00 - 16:05LCY-IAD
11h 05m1 stop
Virgin Atlantic Logo
18:05 - 09:30IAD-LCY
10h 25m1 stop
£497Virgin Atlantic
Find Deal
Thu, 19 Feb - Tue, 24 Feb

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 27 November 2025.
Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Fly from

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 5/2

07:05-17:15

2 stops15h 10m

Washington, D.C. Dulles Intl

Wed 11/2

20:30-16:25

2 stops14h 55m

£464

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 25/12

14:45-13:27

1 stop27h 42m

Washington, D.C. Dulles Intl

Thu 15/1

13:08-09:15

1 stop15h 07m

£465

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 20/1

06:50-15:35

1 stop13h 45m

Washington, D.C. Dulles Intl

Mon 26/1

17:05-12:40

1 stop14h 35m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 12/12

07:50-15:35

1 stop12h 45m

Washington, D.C. Dulles Intl

Tue 16/12

21:00-13:25

1 stop11h 25m

£466

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 10/12

08:50-15:35

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 28/12

17:05-09:05

1 stop11h 00m

£467

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 16/1

07:50-15:35

1 stop12h 45m

Washington, D.C. Dulles Intl

Sun 18/1

18:20-06:30

Nonstop7h 10m

£468

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Fri 9/1

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Fri 16/1

19:40-10:55

1 stop10h 15m

£470

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Thu 11/12

12:15-18:40

1 stop11h 25m

Baltimore/Washington

Tue 16/12

19:40-19:30

1 stop18h 50m

£470

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Sat 4/4

10:55-00:46

1 stop18h 51m

Baltimore/Washington

Wed 15/4

14:10-13:30

1 stop18h 20m

£474

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 19/2

10:00-16:05

1 stop11h 05m

Washington, D.C. Dulles Intl

Tue 24/2

18:05-09:30

1 stop10h 25m

£497

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 £472, 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 September to fly from United Kingdom, when ticket prices are also cheap, with an average price of £486.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £605. 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 £677.

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

In the evening 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 £520. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £630. Departure times in the afternoon 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 £586 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 £525 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 AIRPORTSeptember15% cheaperFlying from London Heathrow Airport to Washington, D.C. costs on average just £491 in September
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJuly24% more expensiveIt costs about £713 for flights to Washington, D.C. from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO WASHINGTON, D.C. FROM LONDON HEATHROW AIRPORTJuly211% 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

£202

Best Round-Trip Price

£464

Fastest flight time

12h 32m

Popular in

July
The best one-way flight price to Washington, D.C. from United Kingdom in the last 72 hours is £202 (London Gatwick to Baltimore/Washington).
The best round-trip flight price to Washington, D.C. from United Kingdom in the last 72 hours is £464 (London Heathrow to Washington, D.C. Dulles Intl).
The fastest flight to Washington, D.C. from United Kingdom takes 12h 32m (London Gatwick to Washington, D.C. Reagan-National).
July has the highest demand for flights to Washington, D.C., with a 16% 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 84 days in advance, when prices tend to average £548. 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 £415 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 £256. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

Are there flights to Dupont Circle?

Yes, you can get a flight to Washington, D.C. Reagan-National airport in Washington, D.C. (4.0 mi from Dupont Circle).

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
Laurel
College Park
Alexandria
Fairfax
Linthicum Heights
Bethesda
Cambridge
Ellicott City
Arlington
Westminster
Woodbridge
Owings Mills
Silver Spring
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.

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1 adult
Sat 27/12
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