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£113+ Cheap flights from Washington, D.C.

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
WAS — LHR
18 May — 25 May1
1 adult

What to know about flights from Washington, D.C.

Discover essential information about flights departing from Washington, D.C., including flight schedules, destinations, airlines operating at the Washington, D.C. airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 13 May 2025.

Cheapest airline

Air Canada

Good round-trip deal

£58 or less

Good one-way deal

£45 or less
On average, Air Canada currently has the cheapest one-way flight from Washington, D.C. (avg. price of £465).
Price to beat on a round-trip flight from Washington, D.C..
Price to beat on a one-way flight from Washington, D.C..

Find flights from Washington, D.C.

Cheapest flights from Washington, D.C.
Explore the most affordable flight options available from Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 13 May 2025.

Mon 16/621:57IAD - LGW
1 stop28h 03mMultiple Airlines
Fri 20/610:00LGW - IAD
1 stop16h 12mMultiple Airlines
Deal found 12/5£478
Mon 13/1016:30IAD - LCY
1 stop12h 35mITA Airways
Wed 3/1216:45LCY - IAD
1 stop26h 55mITA Airways
Deal found 12/5£478
Wed 3/920:40DCA - LHR
1 stop10h 10mMultiple Airlines
Mon 8/919:30LHR - DCA
2 stops25h 21mMultiple Airlines
Deal found 12/5£479
Mon 18/822:20IAD - LHR
Nonstop7h 20mSWISS
Mon 25/820:05LHR - IAD
1 stop25h 10mSWISS
Deal found 12/5£479
Mon 1/906:00DCA - LHR
1 stop22h 35mAir Canada
Wed 10/914:05LHR - DCA
1 stop12h 46mAir Canada
Deal found 12/5£480
Mon 1/917:50IAD - LHR
Nonstop7h 30mDelta
Wed 10/912:35LHR - IAD
Nonstop8h 25mDelta
Deal found 12/5£480
Wed 13/817:50IAD - LGW
1 stop15h 10mTAP AIR PORTUGAL
Mon 29/912:05LGW - IAD
2 stops32h 15mTAP AIR PORTUGAL
Deal found 12/5£481
Fri 12/922:05IAD - LHR
2 stops30h 30mScandinavian Airlines
Wed 17/907:05LHR - IAD
2 stops41h 54mScandinavian Airlines
Deal found 12/5£481
Wed 20/812:41IAD - LHR
2 stops12h 49mAir Canada
Tue 26/806:50LHR - IAD
2 stops14h 20mAir Canada
Deal found 12/5£481
Tue 14/1018:50BWI - STN
1 stop10h 50mPLAY
Wed 22/1011:40STN - BWI
1 stop11h 00mPLAY
Deal found 12/5£481
Thu 29/520:30BWI - STN
2 stops21h 20mMultiple Airlines
Wed 11/606:30STN - BWI
2 stops17h 55mMultiple Airlines
Deal found 12/5£482
Wed 13/820:30IAD - LGW
1 stop10h 15mIcelandair
Sun 17/815:40LGW - IAD
1 stop32h 40mIcelandair
Deal found 12/5£483

Find flights from Washington, D.C. within your budget

Find flights departing from Washington, D.C. that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 13 May 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 16/6

21:57-07:00

1 stop28h 03m

London Gatwick

Fri 20/6

10:00-21:12

1 stop16h 12m

£478

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 13/10

16:30-10:05

1 stop12h 35m

London City

Wed 3/12

16:45-14:40

1 stop26h 55m

£478

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 18/8

22:20-10:40

Nonstop7h 20m

London Heathrow

Mon 25/8

20:05-16:15

1 stop25h 10m

£479

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 3/9

20:40-11:50

1 stop10h 10m

London Heathrow

Mon 8/9

19:30-15:51

2 stops25h 21m

£479

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 1/9

06:00-09:35

1 stop22h 35m

London Heathrow

Wed 10/9

14:05-21:51

1 stop12h 46m

£480

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 1/9

17:50-06:20

Nonstop7h 30m

London Heathrow

Thu 11/9

12:35-16:00

Nonstop8h 25m

£480

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 13/8

17:50-14:00

1 stop15h 10m

London Gatwick

Mon 29/9

12:05-15:20

2 stops32h 15m

£481

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 12/9

22:05-09:35

2 stops30h 30m

London Heathrow

Wed 17/9

07:05-19:59

2 stops41h 54m

£481

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Tue 14/10

18:50-10:40

1 stop10h 50m

London Stansted

Wed 22/10

11:40-17:40

1 stop11h 00m

£481

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 20/8

12:41-06:30

2 stops12h 49m

London Heathrow

Tue 26/8

06:50-16:10

2 stops14h 20m

£481

Flights are sorted by cheapest return flights first.

Deals found on 12/5

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from Washington, D.C.

Get recent, data-driven insights about flights from Washington, D.C. including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to Heathrow. Price data was last updated on 9 May 2025.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. (average of £359). Flying from Washington, D.C. in June will prove the most costly (average of £545). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Airline reviews for flights from Washington, D.C.

Get insights into the airlines that provide service from 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 airline for your flight from Washington, D.C.. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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Related info for your journey

Access useful and relevant information related to your journey from Washington, D.C.. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 13 May 2025.
  • What are the most popular destinations to fly to from Washington, D.C.?

    This month, the top selected destinations from Washington, D.C. are Boston, Atlanta, Athens. Throughout the year, Boston, Atlanta, Athens are some of the top choices made by users flying from Washington, D.C..

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

    Baltimore/Washington airport offers the cheapest routes to Edinburgh, from £269; whereas Washington, D.C. Dulles Intl airport is typically cheaper if you're flying to Edinburgh, from £328. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What are the cheapest airlines flying from Washington, D.C. to anywhere?

    Over the past few days, we've found that Frontier, Porter Airlines, and Spirit Airlines have the cheapest prices from Washington, D.C.. Frontier flights from Washington, D.C. to Chicago (£44), Porter Airlines flights from Washington, D.C. to Toronto (£67), and Spirit Airlines flights from Washington, D.C. to Las Vegas Harry Reid Intl (£85).

  • What is the cheapest month to fly from Washington, D.C.?

    At the present moment the cheapest month to fly from Washington, D.C. is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Washington, D.C.?

    Check out the cheapest flights from Washington, D.C. to embark to:
    Travel from Baltimore to London from £269 round trip
    Travel from Baltimore to Edinburgh from £344 round trip
    Travel from Washington, D.C. to Glasgow from £365 round trip
    Travel from Washington, D.C. to Manchester from £371 round trip

  • How does Cheapflights help users find flights from Washington, D.C.?

    Deals for flights from Washington, D.C. are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

  • Why should you use Cheapflights to find cheap flight tickets from Washington, D.C.?

    Millions of users choose and trust Cheapflights to book the best flight deals from Washington, D.C. for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

  • Can Cheapflights find flights from Washington, D.C. with no change fees?

    Need flexible booking options for your flight from Washington, D.C. ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Washington, D.C. become cheaper?

    Yes, Cheapflights offers price alerts on flights from Washington, D.C. so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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How does Cheapflights help users find flights from Washington, D.C.?

Deals for flights from Washington, D.C. are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C.?

Millions of users choose and trust Cheapflights to book the best flight deals from Washington, D.C. for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Washington, D.C. with no change fees?

Need flexible booking options for your flight from Washington, D.C. ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on flights from Washington, D.C. so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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