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Cheap flights from District of Columbia to Belfast from £441

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Belfast departing on 14/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:40 - 16:10IAD-BFS
15h 30m2 stops
Multiple Airlines Logo
07:55 - 18:30BFS-IAD
15h 35m2 stops
£441Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
19:40 - 20:25IAD-BFS
19h 45m2 stops
Multiple Airlines Logo
07:05 - 18:30BFS-IAD
16h 25m2 stops
£525Multiple Airlines
Find Deal
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
22:30 - 20:20IAD-BFS
16h 50m2 stops
Multiple Airlines Logo
07:55 - 15:15BFS-IAD
36h 20m3 stops
£529Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
17:30 - 13:25IAD-BFS
14h 55m2 stops
Multiple Airlines Logo
07:55 - 16:15BFS-IAD
36h 20m3 stops
£559Multiple Airlines
Find Deal
Tue, 3 Mar - Wed, 18 Mar
Multiple Airlines Logo
17:30 - 20:25IAD-BFS
21h 55m2 stops
Multiple Airlines Logo
06:15 - 21:00BFS-IAD
43h 45m3 stops
£577Multiple Airlines
Find Deal
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
12:55 - 14:05DCA-BFS
20h 10m3 stops
Multiple Airlines Logo
17:30 - 15:33BFS-DCA
27h 03m3 stops
£590Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
17:30 - 20:45IAD-BFS
22h 15m3 stops
Multiple Airlines Logo
06:15 - 21:00BFS-IAD
43h 45m3 stops
£597Multiple Airlines
Find Deal
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
09:45 - 16:10IAD-BFS
25h 25m3 stops
Multiple Airlines Logo
07:55 - 15:15BFS-IAD
36h 20m3 stops
£610Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
17:45 - 22:05IAD-BFS
24h 20m2 stops
Multiple Airlines Logo
20:05 - 14:40BFS-IAD
23h 35m2 stops
£622Multiple Airlines
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Thu, 19 Mar - Thu, 2 Apr
Multiple Airlines Logo
18:30 - 20:25IAD-BFS
21h 55m3 stops
Multiple Airlines Logo
06:35 - 15:05BFS-IAD
37h 30m3 stops
£645Multiple Airlines
Find Deal
Thu, 19 Mar - Thu, 2 Apr

momondo Fare Finder

 
Customise your flight search to find flights from District of Columbia to Belfast Intl Airport 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, momondo users made 279,928 searches. Data last updated 2 December 2025.
Use the filters below to find and compare flights from District of Columbia to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 14/1

19:40-16:10

2 stops15h 30m

Belfast Intl

Wed 21/1

07:55-18:30

2 stops15h 35m

£441

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 15/1

19:40-20:25

2 stops19h 45m

Belfast Intl

Thu 22/1

07:05-18:30

2 stops16h 25m

£525

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 14/1

22:30-20:20

2 stops16h 50m

Belfast Intl

Wed 21/1

07:55-15:15

3 stops36h 20m

£529

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 3/3

17:30-13:25

2 stops14h 55m

Belfast Intl

Wed 18/3

07:55-16:15

3 stops36h 20m

£559

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 15/1

17:30-20:25

2 stops21h 55m

Belfast Intl

Thu 22/1

06:15-21:00

3 stops43h 45m

£577

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Wed 14/1

12:55-14:05

3 stops20h 10m

Belfast Intl

Wed 21/1

17:30-15:33

3 stops27h 03m

£590

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 15/1

17:30-20:45

3 stops22h 15m

Belfast Intl

Thu 22/1

06:15-21:00

3 stops43h 45m

£597

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 14/1

09:45-16:10

3 stops25h 25m

Belfast Intl

Wed 21/1

07:55-15:15

3 stops36h 20m

£610

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 19/3

17:45-22:05

2 stops24h 20m

Belfast Intl

Thu 2/4

20:05-14:40

2 stops23h 35m

£622

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 19/3

18:30-20:25

3 stops21h 55m

Belfast Intl

Thu 2/4

06:35-15:05

3 stops37h 30m

£645

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap District of Columbia to Belfast Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Belfast Intl Airport

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from District of Columbia to Belfast Intl Airport takes 10h 25m
There are no direct flights from District of Columbia to Belfast Intl Airport. There are no popular flight routes from District of Columbia to Belfast Intl Airport.
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  • When did momondo last update prices for flights from District of Columbia to Belfast Intl Airport?

    Prices for flights from District of Columbia to Belfast Intl Airport were last updated today.

  • How old do you have to be to fly from District of Columbia to Belfast Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The necessary travel and health documents for your Belfast Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from District of Columbia to Belfast Intl Airport?

    Confirm your travel details to search for the latest offers for flights from District of Columbia to Belfast Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from District of Columbia to Belfast Intl Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Ballymena
Newry
Armagh
Cookstown
Dungannon
Portadown

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Belfast?

It is quick and easy to find District of Columbia to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

Can I find flights from District of Columbia to Belfast with flexible booking policies on momondo?

All flight searches from District of Columbia to Belfast on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Belfast?

Once all potential District of Columbia to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from District of Columbia to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from District of Columbia to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

An easier way to manage your Belfast Intl Airport trip

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