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Cheap flights from District of Columbia to Belfast from £188

This is the cheapest one-way 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 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from District of Columbia to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:30 - 20:15
IAD
-
BFS
21h 45m2 stops
Multiple Airlines Logo
06:00 - 14:35
BFS
-
IAD
37h 35m3 stops
£521Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
06:00 - 20:15
DCA
-
BFS
33h 15m3 stops
Multiple Airlines Logo
19:20 - 15:33
BFS
-
DCA
25h 13m3 stops
£528Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
19:40 - 18:55
IAD
-
BFS
18h 15m2 stops
Multiple Airlines Logo
07:10 - 18:30
BFS
-
IAD
16h 20m2 stops
£535Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
22:30 - 18:55
IAD
-
BFS
15h 25m2 stops
Multiple Airlines Logo
05:45 - 21:00
BFS
-
IAD
20h 15m3 stops
£549Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
09:45 - 18:55
IAD
-
BFS
28h 10m3 stops
Multiple Airlines Logo
05:45 - 21:00
BFS
-
IAD
20h 15m3 stops
£681Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
16:15 - 13:50
DCA
-
BFS
16h 35m2 stops
Multiple Airlines Logo
06:30 - 22:35
BFS
-
DCA
21h 05m3 stops
£701Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
17:30 - 20:15
IAD
-
BFS
21h 45m2 stops
Multiple Airlines Logo
08:15 - 18:30
BFS
-
IAD
15h 15m2 stops
£701Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
18:50 - 13:50
IAD
-
BFS
14h 00m1 stop
Multiple Airlines Logo
06:30 - 16:35
BFS
-
IAD
15h 05m1 stop
£722Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
11:05 - 13:50
DCA
-
BFS
21h 45m2 stops
Multiple Airlines Logo
06:30 - 21:58
BFS
-
DCA
20h 28m2 stops
£724Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
22:20 - 21:05
IAD
-
BFS
17h 45m1 stop
Multiple Airlines Logo
06:15 - 08:40
BFS
-
IAD
31h 25m2 stops
£725Multiple Airlines
Thu, 8 Jan - Thu, 22 Jan

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 12 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

Mon 26/1

17:30-20:15

2 stops21h 45m

Belfast Intl

Mon 2/2

06:00-14:35

3 stops37h 35m

£521

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Mon 26/1

06:00-20:15

3 stops33h 15m

Belfast Intl

Mon 2/2

19:20-15:33

3 stops25h 13m

£528

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 25/1

19:40-18:55

2 stops18h 15m

Belfast Intl

Sun 1/2

07:10-18:30

2 stops16h 20m

£535

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 25/1

22:30-18:55

2 stops15h 25m

Belfast Intl

Sun 1/2

05:45-21:00

3 stops20h 15m

£549

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 25/1

09:45-18:55

3 stops28h 10m

Belfast Intl

Sun 1/2

05:45-21:00

3 stops20h 15m

£681

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 25/1

16:15-13:50

2 stops16h 35m

Belfast Intl

Sun 1/2

06:30-22:35

3 stops21h 05m

£701

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 26/1

17:30-20:15

2 stops21h 45m

Belfast Intl

Mon 2/2

08:15-18:30

2 stops15h 15m

£701

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 25/1

18:50-13:50

1 stop14h 00m

Belfast Intl

Sun 1/2

06:30-16:35

1 stop15h 05m

£722

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 25/1

11:05-13:50

2 stops21h 45m

Belfast Intl

Sun 1/2

06:30-21:58

2 stops20h 28m

£724

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 8/1

22:20-21:05

1 stop17h 45m

Belfast Intl

Thu 22/1

06:15-08:40

2 stops31h 25m

£725

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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

11h 30m

Direct flights

None
The fastest flight from District of Columbia to Belfast Intl Airport takes 11h 30m
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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