£332+ Cheap flights to Washington, D.C.

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
28 Jul — 4 Aug1
1 adult
1 adult, Economy, 0 bags

Flights to Washington, D.C. in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Washington, D.C.
Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 28 June 2026.

Tue 14/721:25
LHR
-
IAD
1 stop29h 50m
Icelandair
Mon 27/720:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 26/6£442
Tue 7/716:40
LHR
-
IAD
Nonstop8h 20m
Lufthansa
Thu 16/718:30
IAD
-
LHR
Nonstop7h 25m
Lufthansa
Deal found 25/6£443
Tue 18/813:00
LGW
-
IAD
1 stop14h 15m
Icelandair
Tue 1/920:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 26/6£443
Sat 4/706:55
LHR
-
IAD
1 stop13h 10m
United Airlines
Sat 11/722:15
IAD
-
LHR
Nonstop7h 25m
United Airlines
Deal found 25/6£444
Mon 3/815:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Thu 20/820:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 26/6£444
Tue 14/721:25
LHR
-
IAD
1 stop29h 50m
Icelandair
Wed 11/1119:40
IAD
-
LHR
1 stop18h 50m
Icelandair
Deal found 25/6£445
Thu 27/815:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Mon 31/820:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 27/6£445
Tue 14/721:25
LHR
-
IAD
1 stop29h 50m
Icelandair
Wed 22/723:20
IAD
-
LHR
1 stop31h 35m
Icelandair
Deal found 26/6£445
Sat 19/1211:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Tue 5/119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 25/6£445
Fri 3/718:05
LHR
-
DCA
1 stop10h 56m
British Airways
Mon 6/706:30
DCA
-
LHR
1 stop10h 10m
British Airways
Deal found 25/6£445
Thu 2/720:05
LHR
-
IAD
1 stop25h 40m
Multiple Airlines
Sat 11/717:35
IAD
-
LHR
1 stop11h 40m
Multiple Airlines
Deal found 25/6£446
Fri 3/718:05
LHR
-
DCA
1 stop10h 56m
British Airways
Thu 16/706:30
DCA
-
LHR
1 stop10h 10m
British Airways
Deal found 25/6£446

Find flight deals to Washington, D.C.

Find the latest flights to Washington, D.C. in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 28 June 2026.

Return from

£442

One-way from

£332

Popular in

June

Cheapest in

February

Average price

£596

Good round-trip deal

£511 or less

Good one-way deal

£493 or less
Icelandair
  • Icelandair
  • 14/7-27/7
  • 2 total stops
  • 40h 15m total
  • London to Washington, D.C.
Icelandair
  • Icelandair
  • 26/11
  • 1 total stop
  • 11h 15m total
  • London to Washington, D.C.
Highest demand for flights based on searches. 9% potential increase in price (£55 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Average for return flights in June 2026
Price to beat on a round-trip flight from London to Washington, D.C..
Price to beat on a one-way flight from London to Washington, D.C..

Cheapflights Fare Finder

 
Locate flights to Washington, D.C. that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 28 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 14/9

16:40-20:15

Nonstop8h 35m

Washington, D.C. Dulles Intl

Tue 22/9

18:35-06:55

Nonstop7h 20m

£468

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 9/7

09:15-16:13

1 stop11h 58m

Washington, D.C. Reagan-National

Sun 19/7

15:23-06:55

1 stop10h 32m

£472

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 29/10

08:00-15:18

1 stop11h 18m

Washington, D.C. Reagan-National

Thu 5/11

06:00-20:35

1 stop9h 35m

£472

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 11/9

17:25-23:10

1 stop10h 45m

Washington, D.C. Reagan-National

Sat 19/9

15:17-06:55

1 stop10h 38m

£474

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 10/7

09:15-16:13

1 stop11h 58m

Washington, D.C. Reagan-National

Wed 22/7

17:00-08:00

1 stop10h 00m

£475

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 13/8

08:50-15:45

1 stop11h 55m

Washington, D.C. Dulles Intl

Mon 24/8

17:15-08:05

1 stop9h 50m

£476

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 28/7

07:30-15:15

1 stop12h 45m

Washington, D.C. Dulles Intl

Mon 10/8

18:30-06:55

Nonstop7h 25m

£497

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 28/7

08:30-15:15

1 stop11h 45m

Washington, D.C. Dulles Intl

Thu 13/8

15:25-07:40

1 stop11h 15m

£499

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 27/8

06:30-16:59

2 stops15h 29m

Washington, D.C. Reagan-National

Mon 31/8

12:27-06:25

1 stop12h 58m

£499

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 21/7

09:30-16:32

1 stop12h 02m

Washington, D.C. Dulles Intl

Tue 28/7

08:29-06:30

2 stops17h 01m

£502

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C.

How long is the flight to Washington, D.C.?

On average, a flight from London to Washington, D.C. takes 12 hours 31 minutes. Flights to Washington, D.C. from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Washington, D.C.

The most flights from London to Washington, D.C. are scheduled on a Friday (28 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (21 on average).

What are the cheapest airlines that fly to Washington, D.C.?

The cheapest airlines flying from London to Washington, D.C. are Icelandair, United Airlines and TAP AIR PORTUGAL.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

When is the best time to book a flight to Washington, D.C.?

The best time to book flights to Washington, D.C. is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 28 June 2026.
See what other customers who have flown with Virgin Atlantic,United Airlines, andIcelandair to the United States have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Crew

8.1

Overall

7.5

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Boarding

7.7

Crew

8.1

Overall

7.5

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Boarding

7.7

Crew

8.1

Overall

7.5

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Boarding

7.7

Crew

8.1

Overall

7.5

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Boarding

7.7

Crew

8.1

Overall

7.5

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Boarding

7.7

Crew

8.1

Overall

7.5

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

FAQs about flying to Washington, D.C.

  • Can I find cheaper flights to Washington, D.C. if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Washington, D.C. on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Washington, D.C.?

    Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Washington, D.C..

  • What is the cheapest airport to fly to in Washington, D.C.?

    Baltimore/Washington is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Baltimore/Washington typically cost £28, while return flights cost around £72.

  • How much is a return flight to Washington, D.C.?

    A return flight to Washington, D.C. will typically cost around £275, however they can be found for as little as £90.

  • Where does the fastest flight to Washington, D.C. depart from?

    For those looking to save time traveling to Washington, D.C., London offers the quickest one-way flight (8 hours 0 minutes).

  • Does Washington, D.C. Dulles Intl have car hire?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 mi away from Washington, D.C. Dulles Intl).

See more FAQs

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Oxon Hill
Gaithersburg
Hanover
Woodbridge
Alexandria

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