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Cheap flights from District of Columbia to Belfast from £209

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
13 Jul — 20 Jul1
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 8 July 2025.

Round-trip from

£450

One-way from

£209

Popular in

June

Cheapest in

August

Average price

£751
5/10-12/10
  • 5/10-12/10
  • 4 total stops
  • 38h 20m total
  • District of Columbia to Belfast
4/9
  • 4/9
  • 2 total stops
  • 18h 55m total
  • District of Columbia to Belfast
Highest demand for flights based on searches. 22% potential increase in price (£118 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 8 July 2025.

Sun 5/1023:15IAD - BFS
2 stops18h 10mMultiple Airlines
Sun 12/1007:00BFS - IAD
2 stops20h 10mMultiple Airlines
Deal found 7/7£450
Mon 13/1022:45IAD - BHD
1 stop11h 55mAmerican Airlines
Thu 23/1006:35BHD - IAD
1 stop18h 40mAmerican Airlines
Deal found 6/7£464
Sun 5/1017:50IAD - BHD
1 stop12h 40mBritish Airways
Sun 12/1011:00BHD - IAD
1 stop14h 20mBritish Airways
Deal found 7/7£465
Fri 22/814:54DCA - BHD
2 stops13h 31mBritish Airways
Sat 6/909:35BHD - DCA
2 stops18h 32mBritish Airways
Deal found 7/7£471
Wed 20/817:25IAD - BHD
1 stop22h 50mDelta
Fri 5/906:30BHD - IAD
1 stop14h 05mDelta
Deal found 7/7£521
Wed 20/819:48DCA - BHD
2 stops16h 07mDelta
Sat 6/906:30BHD - DCA
2 stops16h 44mDelta
Deal found 7/7£532
Tue 19/806:00DCA - BFS
3 stops24h 20mMultiple Airlines
Tue 26/805:55BFS - DCA
2 stops20h 53mMultiple Airlines
Deal found 6/7£597
Thu 21/819:55DCA - BHD
2 stops16h 00mKLM
Sat 6/906:30BHD - DCA
2 stops15h 50mKLM
Deal found 7/7£605
Thu 11/920:30IAD - BHD
2 stops18h 55mMultiple Airlines
Tue 16/907:05BHD - IAD
3 stops43h 00mMultiple Airlines
Deal found 7/7£649
Thu 7/817:25IAD - BHD
1 stop22h 40mKLM
Thu 14/817:25BHD - IAD
1 stop27h 10mKLM
Deal found 8/7£657
Thu 21/806:00DCA - BHD
3 stops30h 20mMultiple Airlines
Thu 28/818:00BHD - DCA
3 stops26h 48mMultiple Airlines
Deal found 7/7£717
Sat 2/817:25IAD - BHD
1 stop22h 50mVirgin Atlantic
Sat 9/806:30BHD - IAD
1 stop14h 05mVirgin Atlantic
Deal found 6/7£760

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 8 July 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 - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 5/10

23:15-22:25

2 stops18h 10m

Belfast Intl

Sun 12/10

07:00-22:10

2 stops20h 10m

£450

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 13/10

22:45-15:40

1 stop11h 55m

Belfast City

Thu 23/10

06:35-20:15

1 stop18h 40m

£464

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 5/10

17:50-11:30

1 stop12h 40m

Belfast City

Sun 12/10

11:00-20:20

1 stop14h 20m

£465

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 22/8

06:30-09:25

2 stops21h 55m

Belfast City

Fri 5/9

09:30-22:00

2 stops17h 30m

£471

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 20/8

17:25-16:55

1 stop18h 30m

Belfast City

Sat 6/9

06:30-15:35

1 stop14h 05m

£521

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 20/8

19:48-16:55

2 stops16h 07m

Belfast City

Sat 6/9

06:30-18:14

2 stops16h 44m

£532

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 19/8

06:00-11:20

3 stops24h 20m

Belfast Intl

Tue 26/8

05:55-21:48

2 stops20h 53m

£597

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 21/8

19:55-16:55

2 stops16h 00m

Belfast City

Sat 6/9

06:30-17:20

2 stops15h 50m

£605

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 11/9

20:30-20:25

2 stops18h 55m

Belfast City

Tue 16/9

07:05-21:05

3 stops43h 00m

£649

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 7/8

17:25-21:05

1 stop22h 40m

Belfast City

Thu 14/8

17:25-15:35

1 stop27h 10m

£657

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 20 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

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.

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 8 July 2025.
See what other customers who have flown with Delta, KLM, andVirgin Atlantic from District of Columbia to Belfast have to say. 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.

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

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

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

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!

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

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!

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

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!

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

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!

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

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 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 American Airlines, which is currently one of the cheapest options available, starting at £283. British Airways flights start at £290 while deals on Virgin Atlantic start at £316 one-way.

  • What are the most popular routes 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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Cheapflights does show flights with no change fees to all users. To see these options for flights from District of Columbia to Belfast, users can toggle the no change fees filter when performing a flight search.

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