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Cheap flights from Belfast to Washington, D.C. from £316

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
28 Apr — 5 May1
1 adult

Cheap flight deals from Belfast to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 April 2025.

Round-trip from

£476

One-way from

£316
6/9-20/9
  • 6/9-20/9
  • 4 total stops
  • 40h 15m total
  • Belfast to Washington, D.C.
Search Deals
4/5
  • 4/5
  • 2 total stops
  • 47h 15m total
  • Belfast to Washington, D.C.
Search Deals

Find flight deals from Belfast to Washington, D.C.

Cheapest flights from Belfast to Washington, D.C.
Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 April 2025.

Sat 6/906:00BFS - BWI
2 stops16h 40mMultiple Airlines
Sat 20/918:50BWI - BFS
2 stops23h 35mMultiple Airlines
Deal found 22/4£476
Sat 6/907:05BHD - BWI
1 stop17h 30mBritish Airways
Sat 20/921:20BWI - BHD
1 stop12h 45mBritish Airways
Deal found 22/4£611
Sat 6/907:05BHD - IAD
1 stop13h 50mBritish Airways
Sat 20/917:50IAD - BHD
1 stop13h 25mBritish Airways
Deal found 22/4£611
Sat 6/906:30BHD - BWI
2 stops15h 52mKLM
Sat 20/919:40BWI - BHD
2 stops16h 15mKLM
Deal found 22/4£632
Sat 6/917:25BHD - IAD
1 stop27h 10mKLM
Sat 20/919:50IAD - BHD
2 stops16h 05mKLM
Deal found 22/4£633
Sat 6/906:30BHD - DCA
2 stops15h 54mKLM
Sat 20/919:30DCA - BHD
2 stops16h 25mKLM
Deal found 22/4£641
Sat 6/906:30BHD - IAD
2 stops21h 14mDelta
Sat 20/915:00IAD - BHD
2 stops20h 55mDelta
Deal found 22/4£647
Sat 6/907:00BHD - BWI
2 stops21h 27mMultiple Airlines
Sat 20/905:45BWI - BHD
3 stops27h 00mMultiple Airlines
Deal found 22/4£660
Sat 6/908:20BFS - IAD
2 stops18h 05mMultiple Airlines
Sat 20/923:15IAD - BFS
2 stops18h 50mMultiple Airlines
Deal found 22/4£746
Sat 6/905:45BFS - DCA
2 stops17h 19mMultiple Airlines
Sat 20/918:50DCA - BFS
2 stops15h 40mMultiple Airlines
Deal found 22/4£788
Sat 6/909:50BHD - IAD
2 stops14h 05mMultiple Airlines
Sat 20/912:41IAD - BHD
3 stops20h 04mMultiple Airlines
Deal found 22/4£1,116

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 April 2025.
Use the filters below to find and compare flights from Belfast to Washington, D.C. that are best for you.

Fly from

Belfast

Fly to

Washington, D.C.

Route

Depart

Return

Price

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sat 6/9

06:00-17:40

2 stops16h 40m

Baltimore/Washington

Sat 20/9

18:50-23:25

2 stops23h 35m

£476

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Sat 6/9

07:05-19:35

1 stop17h 30m

Baltimore/Washington

Sat 20/9

21:20-15:05

1 stop12h 45m

£611

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 6/9

07:05-15:55

1 stop13h 50m

Washington, D.C. Dulles Intl

Sat 20/9

17:50-12:15

1 stop13h 25m

£611

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Sat 6/9

06:30-17:22

2 stops15h 52m

Baltimore/Washington

Sat 20/9

19:40-16:55

2 stops16h 15m

£632

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 6/9

17:25-15:35

1 stop27h 10m

Washington, D.C. Dulles Intl

Sat 20/9

19:50-16:55

2 stops16h 05m

£633

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Sat 6/9

06:30-17:24

2 stops15h 54m

Washington, D.C. Reagan-National

Sat 20/9

19:30-16:55

2 stops16h 25m

£641

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 6/9

06:30-22:44

2 stops21h 14m

Washington, D.C. Dulles Intl

Sat 20/9

15:00-16:55

2 stops20h 55m

£647

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Sat 6/9

07:00-23:27

2 stops21h 27m

Baltimore/Washington

Sat 20/9

05:45-13:45

3 stops27h 00m

£660

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 6/9

08:20-21:25

2 stops18h 05m

Washington, D.C. Dulles Intl

Sat 20/9

23:15-23:05

2 stops18h 50m

£746

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Sat 6/9

05:45-18:04

2 stops17h 19m

Washington, D.C. Reagan-National

Sat 20/9

18:50-15:30

2 stops15h 40m

£788

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 27 results
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Best time to book a flight from Belfast to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Belfast 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 from Belfast to Washington, D.C.

What is the cheapest time of day to fly from BFS to WAS?

Find hourly flight availability from Belfast to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 April 2025.

When flying from Belfast to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 18% versus a flight in the morning.

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).

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 23 April 2025.
Delta
8.0
Very Good
7,920 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,920 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Aer Lingus
7.0
Good
1,068 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Belfast to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Belfast to Washington, D.C. one-way?

    One-way options have recently been found by users for as low as £560 on Aer Lingus. Other airlines that offer cheap prices include Iberia from £718 and British Airways from £726 one-way.

  • What are the most popular routes from Belfast to Washington, D.C.?

    When deciding which route to take from Belfast to Washington, D.C. consider Belfast Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Dulles Intl or Belfast Intl - Washington, D.C. Reagan-National as they are the most popular.

  • Can I find deals for flights from Belfast to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Belfast to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Washington, D.C..

  • Can I find deals for business class flights from Belfast to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Belfast to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Belfast to Washington, D.C. (average of £599). Flying from Belfast to Washington, D.C. in July is currently the most expensive (average of £947). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
College Park
Laurel
Tysons

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Alternative routes for Belfast to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Dulles Intl flights
Belfast City to Reagan-National flights
Belfast City to Dulles Intl flights

Top airline flying from Belfast to Washington, D.C.

Discover the top airline that operate flights from Belfast to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£682Average£690FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Belfast to Washington, D.C. flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Belfast.

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

Yes, we can. To see specific flights from Belfast to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Belfast to Washington, D.C. on Cheapflights with our Price Alert feature and get notified when better prices are available.

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