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Cheap flights from Washington, D.C. Reagan-National Airport to Belfast from $368

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Belfast departing on 8/10. 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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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 3:55 pm
DCA
-
BFS
28h 55m
3 stops
Multiple Airlines Logo
6:15 am - 9:55 pm
BFS
-
DCA
20h 40m
2 stops
$835Multiple Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
6:00 am - 5:35 pm
DCA
-
BFS
30h 35m
3 stops
Multiple Airlines Logo
6:55 am - 9:55 pm
BFS
-
DCA
20h 00m
3 stops
$919Multiple Airlines
Sun, May 31 - Sat, Jun 6
Multiple Airlines Logo
6:00 am - 5:35 pm
DCA
-
BFS
30h 35m
3 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$926Multiple Airlines
Sun, May 31 - Sat, Jun 6
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
6:55 am - 8:53 am
BFS
-
DCA
30h 58m
3 stops
$944Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
6:55 am - 8:53 am
BFS
-
DCA
30h 58m
3 stops
$948Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$960Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
British Airways Logo
3:36 pm - 10:45 am
DCA
-
BHD
14h 09m
2 stops
British Airways Logo
9:40 am - 8:59 pm
BHD
-
DCA
16h 19m
2 stops
$994British Airways
Tue, Sep 29 - Tue, Oct 6
British Airways Logo
10:00 pm - 8:40 am
DCA
-
BHD
29h 40m
2 stops
British Airways Logo
6:30 am - 11:02 pm
BHD
-
DCA
21h 32m
2 stops
$1,024British Airways
Sat, Sep 12 - Wed, Sep 16
British Airways Logo
6:23 pm - 12:55 pm
DCA
-
BHD
13h 32m
2 stops
British Airways Logo
4:15 pm - 10:34 am
BHD
-
DCA
23h 19m
2 stops
$1,053British Airways
Mon, Aug 17 - Sat, Aug 22
American Airlines Logo
5:00 pm - 12:00 pm
DCA
-
BHD
14h 00m
2 stops
American Airlines Logo
6:30 am - 5:24 pm
BHD
-
DCA
15h 54m
2 stops
$1,198American Airlines
Wed, May 27 - Wed, Jun 3

British Airways flights from Washington, D.C. Reagan-National Airport to Belfast

Our best British Airways deals on Washington, D.C. Reagan-National Airport to Belfast flight tickets
British Airways
Sep 29
DCA3:36 pmWashington, D.C. Reagan-National
14h 09m
2 stops
BHD10:45 amBelfast City
Oct 6
BHD9:40 amBelfast City
16h 19m
2 stops
DCA8:59 pmWashington, D.C. Reagan-National
$994
British Airways
Sep 12
DCA10:00 pmWashington, D.C. Reagan-National
29h 40m
2 stops
BHD8:40 amBelfast City
Sep 16
BHD6:30 amBelfast City
21h 32m
2 stops
DCA11:02 pmWashington, D.C. Reagan-National
$1,024
British Airways
Aug 17
DCA6:23 pmWashington, D.C. Reagan-National
13h 32m
2 stops
BHD12:55 pmBelfast City
Aug 22
BHD4:15 pmBelfast City
23h 19m
2 stops
DCA10:34 amWashington, D.C. Reagan-National
$1,053

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 4, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Wed 5/27

6:00 am-3:55 pm

3 stops28h 55m

Belfast Intl

Wed 6/3

6:15 am-9:55 pm

2 stops20h 40m

$835

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 5/31

6:00 am-5:35 pm

3 stops30h 35m

Belfast Intl

Sat 6/6

6:55 am-9:55 pm

3 stops20h 00m

$919

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 5/31

6:00 am-5:35 pm

3 stops30h 35m

Belfast Intl

Sat 6/6

6:55 am-10:28 pm

2 stops20h 33m

$926

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

6:55 am-8:53 am

3 stops30h 58m

$944

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

6:55 am-8:53 am

3 stops30h 58m

$948

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

6:55 am-10:28 pm

2 stops20h 33m

$960

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 9/29

3:36 pm-10:45 am

2 stops14h 09m

Belfast City

Tue 10/6

9:40 am-8:59 pm

2 stops16h 19m

$994

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sat 9/12

10:00 pm-8:40 am

2 stops29h 40m

Belfast City

Wed 9/16

6:30 am-11:02 pm

2 stops21h 32m

$1,024

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 8/17

6:23 pm-12:55 pm

2 stops13h 32m

Belfast City

Sat 8/22

4:15 pm-10:34 am

2 stops23h 19m

$1,053
Quickest round-trip

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 5/27

5:00 pm-12:00 pm

2 stops14h 00m

Belfast City

Wed 6/3

6:30 am-5:24 pm

2 stops15h 54m

$1,198

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National to Belfast?

British Airways is the most popular carrier operating from Washington, D.C. Reagan-National to Belfast

Cheap Washington, D.C. Reagan-National Airport to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Belfast

Fastest flight time

13h 32m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Belfast takes 13h 32m
There are no direct flights from Washington, D.C. Reagan-National Airport to Belfast. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Belfast.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Belfast

  • How far is Washington, D.C. Reagan-National to Belfast by plane?

    There are 3376.1 mi between Washington, D.C. Reagan-National and Belfast. Typically, this will take 13h 32m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Belfast?

    Prices for flights from Washington, D.C. Reagan-National Airport to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Belfast?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport 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 Washington, D.C. to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Belfast. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Belfast with flexible booking policies on momondo?

momondo does allow users to show only those flights to Belfast from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Belfast?

momondo helps you find the best flight between Washington, D.C. and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Belfast right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Washington, D.C. and alert you when they change.

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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