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Cheap flights from District of Columbia to Belfast from £333

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BHD
5 Apr — 12 Apr1
1 adult

Cheap flight deals from District of Columbia to Belfast

Keep the following information in mind while searching for District of Columbia to Belfast flight deals. Data was last updated 31 March 2025.

Round-trip from

£510

One-way from

£333

Popular in

June

Cheapest in

January

Average price

£755
American Airlines
  • American Airlines
  • 6/5-14/5
  • 2 total stops
  • 21h 35m total
  • District of Columbia to Belfast
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6/6
  • 6/6
  • 3 total stops
  • 47h 20m total
  • District of Columbia to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from District of Columbia to Belfast

Cheapest flights from District of Columbia to Belfast
Explore the most affordable flight options available from District of Columbia to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Tue 6/517:40IAD - BHD
1 stop10h 20mAmerican Airlines
Wed 14/513:50BHD - IAD
1 stop11h 15mAmerican Airlines
Deal found 31/3£510
Fri 4/406:35DCA - BHD
2 stops21h 15mBritish Airways
Sun 6/420:05BHD - DCA
2 stops28h 54mBritish Airways
Deal found 30/3£522
Fri 4/417:25IAD - BHD
1 stop18h 30mKLM
Sun 6/417:25BHD - IAD
1 stop27h 10mKLM
Deal found 30/3£537
Mon 12/520:30IAD - BFS
2 stops21h 10mMultiple Airlines
Mon 19/512:35BFS - IAD
3 stops37h 15mMultiple Airlines
Deal found 30/3£572
Wed 30/719:25IAD - BHD
1 stop11h 30mBritish Airways
Sat 16/809:35BHD - IAD
1 stop15h 40mBritish Airways
Deal found 30/3£588
Tue 6/517:32IAD - BHD
2 stops22h 33mDelta
Wed 14/506:30BHD - IAD
2 stops20h 04mDelta
Deal found 31/3£591
Fri 6/619:00DCA - BHD
2 stops15h 30mAmerican Airlines
Fri 20/606:35BHD - DCA
2 stops15h 24mAmerican Airlines
Deal found 31/3£671
Thu 22/506:59DCA - BFS
3 stops28h 16mMultiple Airlines
Fri 30/518:40BFS - DCA
3 stops32h 48mMultiple Airlines
Deal found 31/3£718
Fri 6/611:35IAD - BHD
3 stops21h 05mMultiple Airlines
Fri 20/615:20BHD - IAD
3 stops34h 44mMultiple Airlines
Deal found 31/3£800
Fri 6/606:59DCA - BHD
2 stops32h 11mMultiple Airlines
Fri 20/607:00BHD - DCA
3 stops20h 27mMultiple Airlines
Deal found 31/3£837

Cheapflights Fare Finder

Customise your flight search to find flights from District of Columbia to Belfast 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 31 March 2025.
Use the filters below to find and compare flights from District of Columbia to Belfast that are best for you.

Fly from

District of Columbia

Fly to

Belfast

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 6/5

17:40-09:00

1 stop10h 20m

Belfast City

Wed 14/5

13:50-20:05

1 stop11h 15m

£510

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 6/5

14:54-10:35

2 stops14h 41m

Belfast City

Wed 14/5

10:00-22:15

2 stops17h 15m

£522

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 6/5

13:59-10:35

2 stops15h 36m

Belfast City

Wed 14/5

10:00-15:45

1 stop10h 45m

£537

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 12/5

20:30-22:40

2 stops21h 10m

Belfast Intl

Mon 19/5

12:35-20:50

3 stops37h 15m

£572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 6/5

17:32-21:05

2 stops22h 33m

Belfast City

Wed 14/5

06:30-21:34

2 stops20h 04m

£591

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 6/6

19:00-15:30

2 stops15h 30m

Belfast City

Fri 20/6

06:35-16:59

2 stops15h 24m

£671

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Thu 22/5

06:59-16:15

3 stops28h 16m

Belfast Intl

Fri 30/5

18:40-22:28

3 stops32h 48m

£718

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 6/6

11:35-13:40

3 stops21h 05m

Belfast City

Fri 20/6

15:20-21:04

3 stops34h 44m

£800

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 6/6

06:59-20:10

2 stops32h 11m

Belfast City

Fri 20/6

07:00-22:27

3 stops20h 27m

£837

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 13/4

17:25-16:55

1 stop18h 30m

Belfast City

Sat 19/4

17:25-15:35

1 stop27h 10m

£919

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 17 results
1
2

Best time to book a flight from District of Columbia to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from District of Columbia 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 District of Columbia to Belfast

Rainfall in Belfast by month

Plan your trip to Belfast by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

Temperature in Belfast by month

Plan your trip to Belfast by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 31 March 2025.
To help decide which airline to fly from District of Columbia to Belfast, see what other customers have to say about Delta, KLM and American Airlines. 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
7,899 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,899 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,061 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,713 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Belfast. 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 District of Columbia to Belfast one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £371. American Airlines flights start at £511 while deals on Aer Lingus start at £518 one-way.

  • What are the most popular routes from District of Columbia to Belfast?

    Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Reagan-National - Belfast Intl or Washington, D.C. Dulles Intl - Belfast City when deciding on the best route from District of Columbia to Belfast.

  • Can I find deals for flights from District of Columbia to Belfast that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Belfast?

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

  • Can I find deals for business class flights from District of Columbia to Belfast?

    Yes. Cheapflights offers flight deals from District of Columbia to Belfast 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 District of Columbia to Belfast?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Belfast (average of £67). Flying from District of Columbia to Belfast in July is currently the most expensive (average of £90). 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

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