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Cheap flights from District of Columbia to Belfast from $342

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 8/25. 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 round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:30 pm - 9:30 pm
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
10:10 pm - 3:10 pm
BFS
-
IAD
46h 00m
3 stops
$731Multiple Airlines
Sun, Apr 19 - Sun, Apr 26
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
BFS
21h 50m
3 stops
Multiple Airlines Logo
1:50 pm - 3:10 pm
BFS
-
IAD
30h 20m
3 stops
$790Multiple Airlines
Mon, Apr 6 - Thu, Apr 16
Multiple Airlines Logo
8:30 pm - 4:15 pm
IAD
-
BFS
14h 45m
2 stops
Multiple Airlines Logo
1:50 pm - 3:10 pm
BFS
-
IAD
30h 20m
3 stops
$820Multiple Airlines
Mon, Apr 6 - Thu, Apr 16
Multiple Airlines Logo
8:30 pm - 9:30 pm
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
6:10 am - 5:20 am
BFS
-
IAD
28h 10m
2 stops
$824Multiple Airlines
Sun, Apr 19 - Sun, Apr 26
Multiple Airlines Logo
8:30 pm - 9:05 pm
IAD
-
BHD
19h 35m
2 stops
Multiple Airlines Logo
8:20 pm - 3:10 pm
BHD
-
IAD
47h 50m
3 stops
$827Multiple Airlines
Sun, Apr 19 - Sun, Apr 26
British Airways Logo
7:15 pm - 10:30 am
IAD
-
BHD
10h 15m
1 stop
British Airways Logo
9:35 am - 3:50 pm
BHD
-
IAD
11h 15m
1 stop
$906British Airways
Sun, Aug 23 - Thu, Sep 10
British Airways Logo
5:40 pm - 12:55 pm
IAD
-
BHD
14h 15m
1 stop
British Airways Logo
7:35 pm - 8:20 pm
BHD
-
IAD
29h 45m
1 stop
$921British Airways
Mon, Aug 24 - Mon, Aug 31
American Airlines Logo
3:15 pm - 10:45 am
DCA
-
BHD
14h 30m
2 stops
American Airlines Logo
9:40 am - 10:29 pm
BHD
-
DCA
17h 49m
2 stops
$952American Airlines
Tue, Apr 21 - Tue, Apr 28
KLM Logo
1:45 pm - 9:20 am
DCA
-
BHD
14h 35m
2 stops
KLM Logo
9:50 am - 9:50 pm
BHD
-
DCA
17h 00m
2 stops
$989KLM
Wed, Aug 26 - Wed, Sep 2
KLM Logo
12:59 pm - 9:20 am
DCA
-
BHD
15h 21m
2 stops
KLM Logo
9:50 am - 8:33 pm
BHD
-
DCA
15h 43m
2 stops
$1,019KLM
Tue, Apr 28 - Wed, May 6

British Airways flights from District of Columbia to Belfast

Our best British Airways deals on District of Columbia to Belfast flight tickets
British Airways
Aug 23
IAD7:15 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
BHD10:30 amBelfast City
Sep 10
BHD9:35 amBelfast City
11h 15m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$906
British Airways
Aug 24
IAD5:40 pmWashington, D.C. Dulles Intl
14h 15m
1 stop
BHD12:55 pmBelfast City
Aug 31
BHD7:35 pmBelfast City
29h 45m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$921
British Airways
Aug 24
IAD7:15 pmWashington, D.C. Dulles Intl
12h 40m
1 stop
BHD12:55 pmBelfast City
Sep 11
BHD6:30 amBelfast City
15h 55m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$926

American Airlines flights from District of Columbia to Belfast

Our best American Airlines deals on District of Columbia to Belfast flight tickets
American Airlines
Apr 21
DCA3:15 pmWashington, D.C. Reagan-National
14h 30m
2 stops
BHD10:45 amBelfast City
Apr 28
BHD9:40 amBelfast City
17h 49m
2 stops
DCA10:29 pmWashington, D.C. Reagan-National
$952
American Airlines
Jun 12
DCA3:00 pmWashington, D.C. Reagan-National
19h 30m
2 stops
BHD3:30 pmBelfast City
Jun 20
BHD9:35 amBelfast City
18h 39m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
$1,417
American Airlines
Jun 20
DCA6:59 pmWashington, D.C. Reagan-National
19h 21m
2 stops
BHD7:20 pmBelfast City
Jun 25
BHD9:35 amBelfast City
15h 35m
2 stops
DCA8:10 pmWashington, D.C. Reagan-National
$1,527

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated March 25, 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 round-trip

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 4/19

8:30 pm-9:30 pm

2 stops20h 00m

Belfast Intl

Sun 4/26

10:10 pm-3:10 pm

3 stops46h 00m

$731

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 4/6

8:30 pm-11:20 pm

3 stops21h 50m

Belfast Intl

Thu 4/16

1:50 pm-3:10 pm

3 stops30h 20m

$790

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 4/6

8:30 pm-4:15 pm

2 stops14h 45m

Belfast Intl

Thu 4/16

1:50 pm-3:10 pm

3 stops30h 20m

$820

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 4/19

8:30 pm-9:30 pm

2 stops20h 00m

Belfast Intl

Sun 4/26

6:10 am-5:20 am

2 stops28h 10m

$824

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 4/19

8:30 pm-9:05 pm

2 stops19h 35m

Belfast City

Sun 4/26

8:20 pm-3:10 pm

3 stops47h 50m

$827
Quickest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 8/23

7:15 pm-10:30 am

1 stop10h 15m

Belfast City

Thu 9/10

9:35 am-3:50 pm

1 stop11h 15m

$906

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 8/24

5:40 pm-12:55 pm

1 stop14h 15m

Belfast City

Mon 8/31

7:35 pm-8:20 pm

1 stop29h 45m

$921

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 4/21

3:15 pm-10:45 am

2 stops14h 30m

Belfast City

Tue 4/28

9:40 am-10:29 pm

2 stops17h 49m

$952

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 8/26

1:45 pm-9:20 am

2 stops14h 35m

Belfast City

Wed 9/2

9:50 am-9:50 pm

2 stops17h 00m

$989

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 4/28

12:59 pm-9:20 am

2 stops15h 21m

Belfast City

Wed 5/6

9:50 am-8:33 pm

2 stops15h 43m

$1,019

Flights are sorted by cheapest round-trip 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 are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Belfast?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from District of Columbia to Belfast.

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

    The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Belfast

Compare and see reviews for airlines that fly from District of Columbia to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $652Free CancellationRating
6.7
7,819 reviews
Search British Airways flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Belfast. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Belfast from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Belfast from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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