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Flights to Washington, D.C. Dulles Intl

£233 Cheap flights to Washington, D.C. Dulles Intl Airport

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. Dulles Intl Airport departing on 5/11. 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 the United Kingdom to Washington, D.C. Dulles Intl Airport

Cheap return flights

Multiple Airlines Logo
07:25 - 20:30BHX-IAD
17h 05m1 stop
Multiple Airlines Logo
21:00 - 18:05IAD-BHX
16h 05m1 stop
£385Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
13:50 - 20:30BHX-IAD
10h 40m1 stop
Multiple Airlines Logo
21:00 - 12:45IAD-BHX
10h 45m1 stop
£385Multiple Airlines
Find Deal
Fri, 31 Oct - Fri, 7 Nov
Aer Lingus Logo
07:40 - 15:50LHR-IAD
13h 10m1 stop
Aer Lingus Logo
17:20 - 08:00IAD-LHR
9h 40m1 stop
£399Aer Lingus
Find Deal
Fri, 3 Oct - Mon, 6 Oct
British Airways Logo
12:10 - 15:35LHR-IAD
8h 25mdirect
British Airways Logo
18:20 - 06:30IAD-LHR
7h 10mdirect
£399British Airways
Find Deal
Thu, 6 Nov - Wed, 12 Nov
Virgin Atlantic Logo
12:35 - 16:00LHR-IAD
8h 25mdirect
Virgin Atlantic Logo
17:50 - 06:20IAD-LHR
7h 30mdirect
£404Virgin Atlantic
Find Deal
Wed, 1 Oct - Mon, 6 Oct
Virgin Atlantic Logo
16:50 - 20:30LHR-IAD
8h 40mdirect
Virgin Atlantic Logo
17:57 - 07:50IAD-LHR
32h 53m1 stop
£407Virgin Atlantic
Find Deal
Wed, 19 Nov - Sat, 22 Nov
British Airways Logo
16:25 - 19:55LHR-IAD
8h 30mdirect
British Airways Logo
18:20 - 06:30IAD-LHR
7h 10mdirect
£414British Airways
Find Deal
Sat, 22 Nov - Sun, 30 Nov
Lufthansa Logo
08:45 - 15:50LCY-IAD
12h 05m1 stop
Lufthansa Logo
22:15 - 18:35IAD-LCY
15h 20m1 stop
£421Lufthansa
Find Deal
Thu, 2 Oct - Mon, 13 Oct
Lufthansa Logo
12:15 - 15:30LHR-IAD
8h 15mdirect
Lufthansa Logo
22:25 - 10:40IAD-LHR
7h 15mdirect
£426Lufthansa
Find Deal
Fri, 3 Oct - Mon, 6 Oct
Aer Lingus Logo
08:05 - 15:35MAN-IAD
12h 30m1 stop
Aer Lingus Logo
17:05 - 09:30IAD-MAN
11h 25m1 stop
£442Aer Lingus
Find Deal
Fri, 9 Jan - Wed, 14 Jan

momondo Fare Finder

 
Locate flights to Washington, D.C. Dulles Intl 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 18 September 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

BirminghamWashington, D.C.

BHX - IAD

BHXIAD

Birmingham

Thu 30/10

07:25-20:30

1 stop17h 05m

Washington, D.C. Dulles Intl

Thu 6/11

21:00-18:05

1 stop16h 05m

£385

BirminghamWashington, D.C.

BHX - IAD

BHXIAD

Birmingham

Fri 31/10

13:50-20:30

1 stop10h 40m

Washington, D.C. Dulles Intl

Fri 7/11

21:00-12:45

1 stop10h 45m

£385

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 3/10

07:40-15:50

1 stop13h 10m

Washington, D.C. Dulles Intl

Mon 6/10

17:20-08:00

1 stop9h 40m

£399

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 6/11

12:10-15:35

Nonstop8h 25m

Washington, D.C. Dulles Intl

Wed 12/11

18:20-06:30

Nonstop7h 10m

£399

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 1/10

12:35-16:00

Nonstop8h 25m

Washington, D.C. Dulles Intl

Mon 6/10

17:50-06:20

Nonstop7h 30m

£404

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 19/11

16:50-20:30

Nonstop8h 40m

Washington, D.C. Dulles Intl

Sat 22/11

17:57-07:50

1 stop32h 53m

£407

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 22/11

16:25-19:55

Nonstop8h 30m

Washington, D.C. Dulles Intl

Sun 30/11

18:20-06:30

Nonstop7h 10m

£414

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 2/10

08:45-15:50

1 stop12h 05m

Washington, D.C. Dulles Intl

Mon 13/10

22:15-18:35

1 stop15h 20m

£421

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 3/10

12:15-15:30

Nonstop8h 15m

Washington, D.C. Dulles Intl

Mon 6/10

22:25-10:40

Nonstop7h 15m

£426

ManchesterWashington, D.C.

MAN - IAD

MANIAD

Manchester

Fri 9/1

08:05-15:35

1 stop12h 30m

Washington, D.C. Dulles Intl

Wed 14/1

17:05-09:30

1 stop11h 25m

£442

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Flights to Washington, D.C. Dulles Intl Airport – Travel Insights & Trends

Get data-powered insights and trends for flights to Washington, D.C. Dulles Intl Airport to help you craft the best travel plan.

What cabin class options are available on United Kingdom to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on United Kingdom to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

According to our data, Wednesday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from United Kingdom. The lowest ticket price found for a Wednesday departure recently was £589. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. 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 £663.

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

The month of September is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from United Kingdom, with most prices found around £490. If you aren’t able to travel during the month of September, then book flights to Washington, D.C. Dulles Intl Airport from United Kingdom during March instead. Flights to Washington, D.C. Dulles Intl Airport in March, while not as cheap as those in September, still average around £496.

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

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the evening when flights can be purchased for as low as £519. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the afternoon when prices are around £623.

What is the cheapest United Kingdom to Washington, D.C. Dulles Intl flight route?

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best United Kingdom - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around £573 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. Dulles Intl Airport from United Kingdom for as low as £536 on momondo.

Cheapest flights to Washington, D.C. Dulles Intl

Find the cheapest flights to Washington, D.C. Dulles Intl from your nearest city or airport
Find flights from London Heathrow Airport to Washington, D.C. Dulles Intl Airport
CHEAPEST MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM LONDON HEATHROW AIRPORTSeptember16% cheaperFlying from London Heathrow Airport to Washington, D.C. Dulles Intl Airport costs on average just £486 in September
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly20% more expensiveIt costs about £692 for flights to Washington, D.C. Dulles Intl Airport from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly275% more users visitedMore momondo users searched in flights to Washington, D.C. Dulles Intl Airport from London Heathrow Airport in July than any other month

Cheap Washington, D.C. Dulles Intl Airport flight deals and tips

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

Best One-Way Price

£233

Best Round-Trip Price

£385

Fastest flight time

18h 25m

Popular in

July
The best one-way flight price to Washington, D.C. from United Kingdom in the last 72 hours is £233 (Glasgow Intl to Washington, D.C. Dulles Intl).
Search Deals
The best round-trip flight price to Washington, D.C. from United Kingdom in the last 72 hours is £385 (Birmingham to Washington, D.C. Dulles Intl).
Search Deals
The fastest flight to Washington, D.C. from United Kingdom takes 18h 25m (Edinburgh Turnhouse to Washington, D.C. Dulles Intl).
Search Deals
July has the highest demand for flights to Washington, D.C., with a 13% price increase on average.
Search Deals

Frequently asked questions about flying to Washington, D.C. Dulles Intl Airport

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

In general, when booking your flight to Washington, D.C. Dulles Intl Airport, September is the cheapest month on average.

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

On average, from most locations, when planning your trip to Washington, D.C. Dulles Intl Airport, try to book your flight in the region of 64 days in advance for the cheapest prices.

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

In general, booking your departure to Washington, D.C. Dulles Intl Airport for a Wednesday represents the best deal on airfare. Try to avoid a Sunday departure to stay away from the highest prices.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

On average you can find the best deals on plane tickets to Washington, D.C. Dulles Intl Airport when looking for flights with Evening departure times.

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

Finding an alternative and possibly cheaper destination airport near Washington, D.C. Dulles Intl Airport is possible. If you are planning a flight to Washington, D.C. Dulles Intl Airport, 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 £220. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

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

The best deal found on momondo in the last two weeks was a flight to Washington, D.C. from Boston for £51. This is 78% cheaper than most flight deals to Washington, D.C.. To find the cheapest price to Washington, D.C. from your area, use momondo’s Airport-to-Airport Pricing Tool.

Which airlines fly to Washington, D.C. Dulles Intl Airport?

Of the 16 airlines that fly to Washington, D.C. Dulles Intl Airport, British Airways, Virgin Atlantic and Aer Lingus happen to be the most favoured based on our user data. British Airways is the most popular among the three airlines, with 32% of users choosing them for their travels to Washington, D.C. Dulles Intl Airport.

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

Prices for flights to Washington, D.C. Dulles Intl Airport are updated daily.

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

There are 23 operators available for flights to Washington, D.C. Dulles Intl Airport as of September 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Washington, D.C. Dulles Intl Airport.

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

The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Winchester
Laurel
College Park
Essex
Alexandria
Fairfax
Bethesda
Oxon Hill
Gettysburg
Front Royal
Cambridge
Ellicott City
Westminster
Arlington
Ashburn
Woodbridge
Owings Mills
Sterling
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. All flights to Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Washington, D.C..

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

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

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