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Cheap flights from District of Columbia to Belfast from £255

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 25/8. 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
1 adult, Economy, 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
20:30 - 21:30
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
22:10 - 15:10
BFS
-
IAD
46h 00m
3 stops
£546Multiple Airlines
Sun, 19 Apr - Sun, 26 Apr
Multiple Airlines Logo
20:30 - 23:20
IAD
-
BFS
21h 50m
3 stops
Multiple Airlines Logo
13:50 - 15:10
BFS
-
IAD
30h 20m
3 stops
£590Multiple Airlines
Mon, 6 Apr - Thu, 16 Apr
Multiple Airlines Logo
20:30 - 16:15
IAD
-
BFS
14h 45m
2 stops
Multiple Airlines Logo
13:50 - 15:10
BFS
-
IAD
30h 20m
3 stops
£612Multiple Airlines
Mon, 6 Apr - Thu, 16 Apr
Multiple Airlines Logo
20:30 - 21:30
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
06:10 - 05:20
BFS
-
IAD
28h 10m
2 stops
£615Multiple Airlines
Sun, 19 Apr - Sun, 26 Apr
Multiple Airlines Logo
20:30 - 21:05
IAD
-
BHD
19h 35m
2 stops
Multiple Airlines Logo
20:20 - 15:10
BHD
-
IAD
47h 50m
3 stops
£617Multiple Airlines
Sun, 19 Apr - Sun, 26 Apr
British Airways Logo
19:15 - 10:30
IAD
-
BHD
10h 15m
1 stop
British Airways Logo
09:35 - 15:50
BHD
-
IAD
11h 15m
1 stop
£676British Airways
Sun, 23 Aug - Thu, 10 Sep
British Airways Logo
17:40 - 12:55
IAD
-
BHD
14h 15m
1 stop
British Airways Logo
19:35 - 20:20
BHD
-
IAD
29h 45m
1 stop
£687British Airways
Mon, 24 Aug - Mon, 31 Aug
American Airlines Logo
15:15 - 10:45
DCA
-
BHD
14h 30m
2 stops
American Airlines Logo
09:40 - 22:29
BHD
-
DCA
17h 49m
2 stops
£711American Airlines
Tue, 21 Apr - Tue, 28 Apr
KLM Logo
13:45 - 09:20
DCA
-
BHD
14h 35m
2 stops
KLM Logo
09:50 - 21:50
BHD
-
DCA
17h 00m
2 stops
£738KLM
Wed, 26 Aug - Wed, 2 Sep
KLM Logo
13:40 - 09:20
DCA
-
BHD
14h 40m
2 stops
KLM Logo
09:50 - 22:22
BHD
-
DCA
17h 32m
2 stops
£761KLM
Tue, 28 Apr - Tue, 5 May

British Airways flights from District of Columbia to Belfast

Our best British Airways deals on District of Columbia to Belfast flight tickets
British Airways
23 Aug
IAD19:15Washington, D.C. Dulles Intl
10h 15m
1 stop
BHD10:30Belfast City
10 Sept
BHD09:35Belfast City
11h 15m
1 stop
IAD15:50Washington, D.C. Dulles Intl
£676
British Airways
24 Aug
IAD17:40Washington, D.C. Dulles Intl
14h 15m
1 stop
BHD12:55Belfast City
31 Aug
BHD19:35Belfast City
29h 45m
1 stop
IAD20:20Washington, D.C. Dulles Intl
£687
British Airways
24 Aug
IAD17:40Washington, D.C. Dulles Intl
14h 15m
1 stop
BHD12:55Belfast City
8 Sept
BHD09:40Belfast City
15h 40m
1 stop
IAD20:20Washington, D.C. Dulles Intl
£691

American Airlines flights from District of Columbia to Belfast

Our best American Airlines deals on District of Columbia to Belfast flight tickets
American Airlines
21 Apr
DCA15:15Washington, D.C. Reagan-National
14h 30m
2 stops
BHD10:45Belfast City
28 Apr
BHD09:40Belfast City
17h 49m
2 stops
DCA22:29Washington, D.C. Reagan-National
£710
American Airlines
12 Jun
DCA15:00Washington, D.C. Reagan-National
19h 30m
2 stops
BHD15:30Belfast City
20 Jun
BHD09:35Belfast City
18h 39m
2 stops
DCA23:14Washington, D.C. Reagan-National
£1,058
American Airlines
20 Jun
DCA18:59Washington, D.C. Reagan-National
19h 21m
2 stops
BHD19:20Belfast City
25 Jun
BHD09:35Belfast City
15h 35m
2 stops
DCA20:10Washington, D.C. Reagan-National
£1,140

momondo 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, momondo users made 279,928 searches. Data last updated 25 March 2026.
Use the filters below to find and compare flights from District of Columbia to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 19/4

20:30-21:30

2 stops20h 00m

Belfast Intl

Sun 26/4

22:10-15:10

3 stops46h 00m

£546

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 6/4

20:30-23:20

3 stops21h 50m

Belfast Intl

Thu 16/4

13:50-15:10

3 stops30h 20m

£590

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 6/4

20:30-16:15

2 stops14h 45m

Belfast Intl

Thu 16/4

13:50-15:10

3 stops30h 20m

£612

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 19/4

20:30-21:30

2 stops20h 00m

Belfast Intl

Sun 26/4

06:10-05:20

2 stops28h 10m

£615

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 19/4

20:30-21:05

2 stops19h 35m

Belfast City

Sun 26/4

20:20-15:10

3 stops47h 50m

£617
Fastest return journey

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 23/8

19:15-10:30

1 stop10h 15m

Belfast City

Thu 10/9

09:35-15:50

1 stop11h 15m

£676

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 24/8

17:40-12:55

1 stop14h 15m

Belfast City

Mon 31/8

19:35-20:20

1 stop29h 45m

£687

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 21/4

15:15-10:45

2 stops14h 30m

Belfast City

Tue 28/4

09:40-22:29

2 stops17h 49m

£710

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 26/8

13:45-09:20

2 stops14h 35m

Belfast City

Wed 2/9

09:50-21:50

2 stops17h 00m

£738

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 28/4

13:40-09:20

2 stops14h 40m

Belfast City

Tue 5/5

09:50-22:22

2 stops17h 32m

£761

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from District of Columbia to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from District of Columbia to Belfast?

British Airways is the most popular carrier operating from District of Columbia to Belfast

Cheap District of Columbia to Belfast flight deals and tips

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

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from District of Columbia to Belfast takes 10h 15m
There are no direct flights from District of Columbia to Belfast. There are no popular flight routes from District of Columbia to Belfast.
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Belfast?

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Belfast.

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

    The necessary travel and health documents for your Belfast 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.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from District of Columbia.

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

Flights from District of Columbia to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for District of Columbia to Belfast flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of District of Columbia to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport