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Cheap flights from Belfast to Washington, D.C. from £493

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£619

One-way from

£493
3/7-9/7
  • 3/7-9/7
  • 6 total stops
  • 66h 38m total
  • Belfast to Washington, D.C.
Search Deals
24/7
  • 24/7
  • 3 total stops
  • 21h 21m 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 13 June 2025.

Thu 3/706:00BFS - DCA
3 stops35h 03mMultiple Airlines
Wed 9/706:00DCA - BFS
3 stops31h 35mMultiple Airlines
Deal found 11/6£619
Thu 3/706:00BFS - IAD
2 stops32h 37mMultiple Airlines
Wed 9/714:25IAD - BFS
2 stops23h 10mMultiple Airlines
Deal found 11/6£622
Sun 27/723:30BFS - BWI
2 stops23h 10mMultiple Airlines
Sun 3/818:50BWI - BFS
2 stops21h 40mMultiple Airlines
Deal found 12/6£714
Mon 3/1114:40BHD - BWI
1 stop33h 05mAmerican Airlines
Tue 30/1220:30BWI - BHD
1 stop12h 05mAmerican Airlines
Deal found 12/6£1,807
Tue 4/1106:30BHD - BWI
2 stops21h 26mDelta
Sun 28/1217:35BWI - BHD
2 stops18h 15mDelta
Deal found 12/6£1,810
Mon 3/1119:30BHD - BWI
1 stop28h 15mBritish Airways
Wed 24/1220:30BWI - BHD
1 stop30h 00mBritish Airways
Deal found 12/6£1,851
Mon 3/1117:20BHD - IAD
1 stop27h 25mDelta
Wed 24/1217:35IAD - BHD
1 stop22h 25mDelta
Deal found 12/6£1,875
Tue 4/1108:40BHD - IAD
2 stops15h 50mAmerican Airlines
Tue 30/1221:55IAD - BHD
1 stop13h 50mAmerican Airlines
Deal found 12/6£1,896
Tue 4/1106:30BHD - DCA
2 stops20h 49mDelta
Sun 28/1217:25DCA - BHD
2 stops18h 25mDelta
Deal found 12/6£1,909
Mon 3/1119:30BHD - IAD
2 stops25h 05mBritish Airways
Sat 27/1218:15IAD - BHD
1 stop11h 55mBritish Airways
Deal found 12/6£1,927
Tue 4/1106:30BHD - IAD
2 stops15h 05mMultiple Airlines
Sat 27/1217:35IAD - BHD
1 stop18h 15mMultiple Airlines
Deal found 12/6£1,932
Tue 4/1106:55BHD - IAD
2 stops13h 40mAer Lingus
Fri 26/1217:05IAD - BHD
2 stops14h 45mAer Lingus
Deal found 12/6£1,935

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 13 June 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

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Thu 3/7

06:00-12:03

3 stops35h 03m

Washington, D.C. Reagan-National

Wed 9/7

06:00-18:35

3 stops31h 35m

£619

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 3/7

06:00-09:37

2 stops32h 37m

Washington, D.C. Dulles Intl

Wed 9/7

14:25-18:35

2 stops23h 10m

£622

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sun 27/7

23:30-17:40

2 stops23h 10m

Baltimore/Washington

Sun 3/8

18:50-21:30

2 stops21h 40m

£714

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 3/11

14:40-18:45

1 stop33h 05m

Baltimore/Washington

Tue 30/12

20:30-13:35

1 stop12h 05m

£1,807

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 4/11

06:30-22:56

2 stops21h 26m

Baltimore/Washington

Sun 28/12

17:35-16:50

2 stops18h 15m

£1,810

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 3/11

19:30-18:45

1 stop28h 15m

Baltimore/Washington

Wed 24/12

20:30-07:30

1 stop30h 00m

£1,851

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 3/11

17:20-15:45

1 stop27h 25m

Washington, D.C. Dulles Intl

Wed 24/12

17:35-21:00

1 stop22h 25m

£1,875

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 4/11

08:40-19:30

2 stops15h 50m

Washington, D.C. Dulles Intl

Tue 30/12

21:55-16:45

1 stop13h 50m

£1,896

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 4/11

06:30-22:19

2 stops20h 49m

Washington, D.C. Reagan-National

Sun 28/12

17:25-16:50

2 stops18h 25m

£1,909

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 3/11

19:30-15:35

2 stops25h 05m

Washington, D.C. Dulles Intl

Sat 27/12

18:15-11:10

1 stop11h 55m

£1,927

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 25 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 13 June 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 13 June 2025.
To help decide which airline to fly from Belfast to Washington, D.C., see what other customers have to say about Delta, KLM and Virgin Atlantic. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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!
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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!
Aer Lingus
7.1
Good
1,118 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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!

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 £595 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £1,057 and Virgin Atlantic from £1,276 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 City - Baltimore/Washington, Belfast City - Washington, D.C. Dulles Intl or Belfast Intl - Baltimore/Washington 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, February is the cheapest month in which you can book a flight from Belfast to Washington, D.C. (average of £565). Flying from Belfast to Washington, D.C. in July is currently the most expensive (average of £946). 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
Hanover
Oxon Hill
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 Dulles Intl flights
Belfast City to Reagan-National flights

Fly with Cheapflights

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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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