Latest deals
Insights
When to book
FAQs
Price Alerts
Flights to Washington, D.C. Dulles Intl

£247 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 11/12. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise 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. Dulles Intl Airport

Cheap return flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
18:30 - 15:15LHR-IAD
25h 45m1 stop
TAP AIR PORTUGAL Logo
22:30 - 17:30IAD-LHR
14h 00m1 stop
£395TAP AIR PORTUGAL
Find Deal
Sun, 23 Nov - Sun, 30 Nov
Multiple Airlines Logo
08:15 - 18:30BHX-IAD
15h 15m2 stops
Multiple Airlines Logo
19:40 - 21:35IAD-BHX
20h 55m2 stops
£395Multiple Airlines
Find Deal
Thu, 11 Dec - Sun, 14 Dec
Aer Lingus Logo
08:15 - 15:35BHX-IAD
12h 20m1 stop
Aer Lingus Logo
17:05 - 08:40IAD-BHX
10h 35m1 stop
£485Aer Lingus
Find Deal
Wed, 19 Nov - Sun, 30 Nov
Aer Lingus Logo
13:55 - 19:30MAN-IAD
10h 35m1 stop
Aer Lingus Logo
17:05 - 09:30IAD-MAN
11h 25m1 stop
£501Aer Lingus
Find Deal
Wed, 26 Nov - Sun, 30 Nov
Virgin Atlantic Logo
10:00 - 17:05LCY-IAD
11h 05m1 stop
Virgin Atlantic Logo
18:05 - 08:50IAD-LCY
9h 45m1 stop
£512Virgin Atlantic
Find Deal
Mon, 27 Oct - Wed, 3 Dec
Virgin Atlantic Logo
10:00 - 16:05LCY-IAD
11h 05m1 stop
Virgin Atlantic Logo
18:05 - 08:50IAD-LCY
9h 45m1 stop
£514Virgin Atlantic
Find Deal
Wed, 12 Nov - Tue, 25 Nov
Lufthansa Logo
12:30 - 15:50EDI-IAD
8h 20mdirect
Lufthansa Logo
22:20 - 10:30IAD-EDI
7h 10mdirect
£651Lufthansa
Find Deal
Mon, 17 Nov - Tue, 2 Dec
Lufthansa Logo
12:30 - 15:50EDI-IAD
8h 20mdirect
Lufthansa Logo
18:00 - 12:00IAD-EDI
13h 00m1 stop
£656Lufthansa
Find Deal
Wed, 26 Nov - Wed, 3 Dec
British Airways Logo
05:55 - 18:54GLA-IAD
16h 59m2 stops
British Airways Logo
14:16 - 12:50IAD-GLA
17h 34m2 stops
£717British Airways
Find Deal
Wed, 29 Oct - Wed, 12 Nov
British Airways Logo
09:35 - 19:30GLA-IAD
14h 55m2 stops
British Airways Logo
17:05 - 07:50IAD-GLA
9h 45m1 stop
£855British Airways
Find Deal
Sat, 8 Nov - Wed, 26 Nov

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 17 October 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

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 23/11

18:30-15:15

1 stop25h 45m

Washington, D.C. Dulles Intl

Sun 30/11

22:30-17:30

1 stop14h 00m

£395

BirminghamWashington, D.C.

BHX - IAD

BHXIAD

Birmingham

Thu 11/12

08:15-18:30

2 stops15h 15m

Washington, D.C. Dulles Intl

Sun 14/12

19:40-21:35

2 stops20h 55m

£395

BirminghamWashington, D.C.

BHX - IAD

BHXIAD

Birmingham

Wed 19/11

08:15-15:35

1 stop12h 20m

Washington, D.C. Dulles Intl

Sun 30/11

17:05-08:40

1 stop10h 35m

£485

ManchesterWashington, D.C.

MAN - IAD

MANIAD

Manchester

Wed 26/11

13:55-19:30

1 stop10h 35m

Washington, D.C. Dulles Intl

Sun 30/11

17:05-09:30

1 stop11h 25m

£501

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 27/10

10:00-17:05

1 stop11h 05m

Washington, D.C. Dulles Intl

Wed 3/12

18:05-08:50

1 stop9h 45m

£512

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 12/11

10:00-16:05

1 stop11h 05m

Washington, D.C. Dulles Intl

Tue 25/11

18:05-08:50

1 stop9h 45m

£514

EdinburghWashington, D.C.

EDI - IAD

EDIIAD

Edinburgh Turnhouse

Mon 17/11

12:30-15:50

Nonstop8h 20m

Washington, D.C. Dulles Intl

Tue 2/12

22:20-10:30

Nonstop7h 10m

£651

EdinburghWashington, D.C.

EDI - IAD

EDIIAD

Edinburgh Turnhouse

Wed 26/11

12:30-15:50

Nonstop8h 20m

Washington, D.C. Dulles Intl

Wed 3/12

18:00-12:00

1 stop13h 00m

£656

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 29/10

05:55-18:54

2 stops16h 59m

Washington, D.C. Dulles Intl

Wed 12/11

14:16-12:50

2 stops17h 34m

£717

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sat 8/11

09:35-19:30

2 stops14h 55m

Washington, D.C. Dulles Intl

Wed 26/11

17:05-07:50

1 stop9h 45m

£855

Flights are sorted by cheapest return flights first.

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

See travel insights to Washington, D.C. Dulles Intl Airport from

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 £603. 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 £679.

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 £486. 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 £505.

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 £527. 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 £640.

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 £581 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 £549 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 AIRPORTSeptember18% cheaperFlying from London Heathrow Airport to Washington, D.C. Dulles Intl Airport costs on average just £482 in September
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly20% more expensiveIt costs about £701 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 AIRPORTJuly281% 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

£247

Best Round-Trip Price

£395

Fastest flight time

14h 15m

Popular in

July
The best one-way flight price to Washington, D.C. from United Kingdom in the last 72 hours is £247 (Manchester 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 £395 (London Heathrow to Washington, D.C. Dulles Intl).
Search Deals
The fastest flight to Washington, D.C. from United Kingdom takes 14h 15m (London Heathrow 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 £242. 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 Chicago for £27. This is 89% 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, Virgin Atlantic, British Airways and Aer Lingus happen to be the most favoured based on our user data. Virgin Atlantic 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 October 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
Laurel
College Park
Alexandria
Fairfax
Linthicum Heights
Bethesda
Gettysburg
Front Royal
Cambridge
Winchester
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.

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

We make it super easy to schedule, organise 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
Sun 16/11
Sun 23/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C. Dulles Intl Airport IAD

Popular Flights to Washington, D.C. Dulles Intl Airport

Popular routes according to searches in the past day on momondo
Flights from London Heathrow to IADfrom £521
Flights from Edinburgh Turnhouse to IADfrom £745
Flights from Dublin to IADfrom £450