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Cheap flights from District of Columbia to Belfast from $357

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 8/4. 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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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
4:05 pm - 4:30 pm
IAD
-
BFS
19h 25m
2 stops
Multiple Airlines Logo
8:30 am - 8:35 pm
BFS
-
IAD
41h 05m
3 stops
$921Multiple Airlines
Fri, Jun 5 - Wed, Jun 10
Multiple Airlines Logo
12:45 pm - 2:55 pm
DCA
-
BHD
21h 10m
3 stops
Multiple Airlines Logo
7:00 am - 6:13 pm
BHD
-
DCA
40h 13m
3 stops
$933Multiple Airlines
Sun, Jun 7 - Thu, Jun 11
Multiple Airlines Logo
9:45 am - 8:05 pm
IAD
-
BFS
30h 20m
3 stops
Multiple Airlines Logo
8:00 pm - 6:45 pm
BFS
-
IAD
27h 45m
3 stops
$942Multiple Airlines
Sun, Oct 25 - Sun, Nov 1
Multiple Airlines Logo
8:30 pm - 9:30 pm
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
6:20 am - 3:45 pm
BFS
-
IAD
38h 25m
3 stops
$943Multiple Airlines
Sun, Jul 19 - Thu, Jul 23
Multiple Airlines Logo
8:18 am - 4:30 pm
IAD
-
BFS
27h 12m
3 stops
Multiple Airlines Logo
8:30 am - 8:35 pm
BFS
-
IAD
41h 05m
3 stops
$944Multiple Airlines
Fri, Jun 5 - Wed, Jun 10
Multiple Airlines Logo
12:45 pm - 2:55 pm
DCA
-
BHD
21h 10m
3 stops
Multiple Airlines Logo
7:00 am - 10:28 pm
BHD
-
DCA
44h 28m
3 stops
$967Multiple Airlines
Sun, Jun 7 - Sun, Jun 14
British Airways Logo
10:25 pm - 3:30 pm
IAD
-
BHD
12h 05m
1 stop
British Airways Logo
9:35 am - 5:25 pm
BHD
-
IAD
12h 50m
1 stop
$979British Airways
Mon, Sep 7 - Fri, Sep 11
British Airways Logo
7:15 pm - 12:55 pm
IAD
-
BHD
12h 40m
1 stop
British Airways Logo
9:35 am - 5:25 pm
BHD
-
IAD
12h 50m
1 stop
$980British Airways
Mon, Sep 7 - Fri, Sep 11
American Airlines Logo
2:55 pm - 10:20 am
DCA
-
BHD
15h 25m
2 stops
American Airlines Logo
6:30 am - 4:51 pm
BHD
-
DCA
15h 21m
2 stops
$1,043American Airlines
Sun, Oct 25 - Sun, Nov 1
Delta Logo
11:45 am - 9:20 am
DCA
-
BHD
16h 35m
2 stops
Delta Logo
9:50 am - 11:21 pm
BHD
-
DCA
18h 31m
2 stops
$1,280Delta
Sun, Jun 7 - Sun, Jun 14

British Airways flights from District of Columbia to Belfast

Our best British Airways deals on District of Columbia to Belfast flight tickets
British Airways
Sep 7
IAD10:25 pmWashington, D.C. Dulles Intl
12h 05m
1 stop
BHD3:30 pmBelfast City
Sep 11
BHD9:35 amBelfast City
12h 50m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$979
British Airways
Sep 7
IAD7:15 pmWashington, D.C. Dulles Intl
12h 40m
1 stop
BHD12:55 pmBelfast City
Sep 11
BHD9:35 amBelfast City
12h 50m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$980
British Airways
Oct 25
IAD10:45 pmWashington, D.C. Dulles Intl
14h 05m
1 stop
BHD4:50 pmBelfast City
Nov 1
BHD9:10 amBelfast City
11h 25m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,025

KLM flights from District of Columbia to Belfast

Our best KLM deals on District of Columbia to Belfast flight tickets
KLM
May 11
IAD12:40 pmWashington, D.C. Dulles Intl
15h 40m
2 stops
BHD9:20 amBelfast City
May 25
BHD5:30 pmBelfast City
27h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,135
KLM
May 18
IAD6:10 pmWashington, D.C. Dulles Intl
17h 45m
1 stop
BHD4:55 pmBelfast City
May 25
BHD5:30 pmBelfast City
27h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,138
KLM
May 13
IAD1:32 pmWashington, D.C. Dulles Intl
14h 48m
2 stops
BHD9:20 amBelfast City
May 17
BHD9:50 amBelfast City
10h 45m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,178

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 May 11, 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

Fri 6/5

4:05 pm-4:30 pm

2 stops19h 25m

Belfast Intl

Wed 6/10

8:30 am-8:35 pm

3 stops41h 05m

$921

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 6/7

12:45 pm-2:55 pm

3 stops21h 10m

Belfast City

Thu 6/11

7:00 am-6:13 pm

3 stops40h 13m

$933

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 10/25

9:45 am-8:05 pm

3 stops30h 20m

Belfast Intl

Sun 11/1

8:00 pm-6:45 pm

3 stops27h 45m

$942

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 7/19

8:30 pm-9:30 pm

2 stops20h 00m

Belfast Intl

Thu 7/23

6:20 am-3:45 pm

3 stops38h 25m

$943

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Fri 6/5

8:18 am-4:30 pm

3 stops27h 12m

Belfast Intl

Wed 6/10

8:30 am-8:35 pm

3 stops41h 05m

$944

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 6/7

12:45 pm-2:55 pm

3 stops21h 10m

Belfast City

Sun 6/14

7:00 am-10:28 pm

3 stops44h 28m

$967
Quickest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 9/7

10:25 pm-3:30 pm

1 stop12h 05m

Belfast City

Fri 9/11

9:35 am-5:25 pm

1 stop12h 50m

$979

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 9/7

7:15 pm-12:55 pm

1 stop12h 40m

Belfast City

Fri 9/11

9:35 am-5:25 pm

1 stop12h 50m

$980

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 10/25

2:55 pm-10:20 am

2 stops15h 25m

Belfast City

Sun 11/1

6:30 am-4:51 pm

2 stops15h 21m

$1,043

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 6/7

11:45 am-9:20 am

2 stops16h 35m

Belfast City

Sun 6/14

9:50 am-11:21 pm

2 stops18h 31m

$1,280

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

KLM, British Airways, and American Airlines are the most popular carriers 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

14h 05m

Direct flights

None
The fastest flight from District of Columbia to Belfast takes 14h 05m
There are no direct flights from District of Columbia to Belfast. There are no popular flight routes from District of Columbia to Belfast.
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Frequently asked questions about flying from District of Columbia to Belfast

  • 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
7,964 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