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Cheap flights from Washington, D.C. Reagan-National Airport to Belfast from $448

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 9/21. 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

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
11:00 am - 11:55 am-
19h 55m
Multiple Airlines Logo
8:45 am - 12:00 pm-
32h 15m
$1,004Multiple Airlines
Sun, Sep 27 - Mon, Oct 12
Multiple Airlines Logo
6:00 am - 11:55 am-
24h 55m
Multiple Airlines Logo
8:45 am - 12:00 pm-
32h 15m
$1,012Multiple Airlines
Sun, Sep 27 - Mon, Oct 12
Delta Logo
12:55 pm - 9:20 am-
15h 25m
Delta Logo
5:30 pm - 4:37 pm-
28h 07m
$1,016Delta
Sun, Sep 27 - Mon, Oct 12
KLM Logo
6:10 am - 9:20 am-
22h 10m
KLM Logo
5:30 pm - 4:37 pm-
28h 07m
$1,029KLM
Mon, Sep 21 - Mon, Oct 5
British Airways Logo
3:06 pm - 12:00 pm-
15h 54m
British Airways Logo
9:40 am - 9:30 pm-
16h 50m
$1,044British Airways
Wed, Sep 30 - Tue, Oct 6
British Airways Logo
3:06 pm - 12:00 pm-
15h 54m
British Airways Logo
9:40 am - 9:59 pm-
17h 19m
$1,045British Airways
Wed, Sep 30 - Tue, Oct 6
British Airways Logo
3:06 pm - 12:55 pm-
16h 49m
British Airways Logo
10:05 am - 7:05 pm-
14h 00m
$1,052British Airways
Mon, Sep 28 - Wed, Oct 7
British Airways Logo
3:58 pm - 12:55 pm-
15h 57m
British Airways Logo
9:40 am - 7:05 pm-
14h 25m
$1,057British Airways
Mon, Sep 21 - Tue, Oct 6
British Airways Logo
5:55 pm - 1:35 pm-
14h 40m
British Airways Logo
9:40 am - 8:59 pm-
16h 19m
$1,069British Airways
Wed, Oct 7 - Mon, Oct 12
British Airways Logo
6:23 pm - 1:35 pm-
14h 12m
British Airways Logo
1:45 pm - 11:33 pm-
14h 48m
$1,101British Airways
Wed, Aug 19 - Tue, Aug 25

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KLM flights from Washington, D.C. Reagan-National Airport to Belfast City Airport

Our best KLM deals on Washington, D.C. Reagan-National Airport to Belfast City Airport flight tickets
KLM
Sep 21
DCA6:10 amWashington, D.C. Reagan-National
22h 10m
2 stops
BHD9:20 amBelfast City
Oct 5
BHD5:30 pmBelfast City
28h 07m
2 stops
DCA4:37 pmWashington, D.C. Reagan-National
$1,029
KLM
Aug 19
DCA12:55 pmWashington, D.C. Reagan-National
15h 25m
2 stops
BHD9:20 amBelfast City
Aug 24
BHD9:50 amBelfast City
17h 10m
2 stops
DCA10:00 pmWashington, D.C. Reagan-National
$1,184
KLM
Aug 21
DCA12:55 pmWashington, D.C. Reagan-National
15h 25m
2 stops
BHD9:20 amBelfast City
Aug 24
BHD9:50 amBelfast City
15h 43m
2 stops
DCA8:33 pmWashington, D.C. Reagan-National
$1,234

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

Our best British Airways deals on Washington, D.C. Reagan-National Airport to Belfast City Airport flight tickets
British Airways
Sep 30
DCA3:06 pmWashington, D.C. Reagan-National
15h 54m
2 stops
BHD12:00 pmBelfast City
Oct 6
BHD9:40 amBelfast City
16h 50m
2 stops
DCA9:30 pmWashington, D.C. Reagan-National
$1,044
British Airways
Sep 30
DCA3:06 pmWashington, D.C. Reagan-National
15h 54m
2 stops
BHD12:00 pmBelfast City
Oct 6
BHD9:40 amBelfast City
17h 19m
2 stops
DCA9:59 pmWashington, D.C. Reagan-National
$1,045
British Airways
Sep 28
DCA3:06 pmWashington, D.C. Reagan-National
16h 49m
2 stops
BHD12:55 pmBelfast City
Oct 7
BHD10:05 amBelfast City
14h 00m
2 stops
DCA7:05 pmWashington, D.C. Reagan-National
$1,052

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Belfast City 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 832,500 searches. Data last updated August 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 9/27

11:00 am-11:55 am

2 stops19h 55m

Belfast City

Mon 10/12

8:45 am-12:00 pm

3 stops32h 15m

$1,004

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 9/27

6:00 am-11:55 am

3 stops24h 55m

Belfast City

Mon 10/12

8:45 am-12:00 pm

3 stops32h 15m

$1,012

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 9/27

12:55 pm-9:20 am

2 stops15h 25m

Belfast City

Mon 10/12

5:30 pm-4:37 pm

2 stops28h 07m

$1,016

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 9/21

6:10 am-9:20 am

2 stops22h 10m

Belfast City

Mon 10/5

5:30 pm-4:37 pm

2 stops28h 07m

$1,029

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 9/30

3:06 pm-12:00 pm

2 stops15h 54m

Belfast City

Tue 10/6

9:40 am-9:30 pm

2 stops16h 50m

$1,044

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 9/30

3:06 pm-12:00 pm

2 stops15h 54m

Belfast City

Tue 10/6

9:40 am-9:59 pm

2 stops17h 19m

$1,045

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 9/28

3:06 pm-12:55 pm

2 stops16h 49m

Belfast City

Wed 10/7

10:05 am-7:05 pm

2 stops14h 00m

$1,052

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 9/21

3:58 pm-12:55 pm

2 stops15h 57m

Belfast City

Tue 10/6

9:40 am-7:05 pm

2 stops14h 25m

$1,057

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 10/7

5:55 pm-1:35 pm

2 stops14h 40m

Belfast City

Mon 10/12

9:40 am-8:59 pm

2 stops16h 19m

$1,069
Quickest round-trip

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 8/19

6:23 pm-1:35 pm

2 stops14h 12m

Belfast City

Tue 8/25

1:45 pm-11:33 pm

2 stops14h 48m

$1,101

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 Washington, D.C. Reagan-National Airport to Belfast City Airport

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 City?

KLM, Delta, and British Airways are the most popular carriers operating from Washington, D.C. Reagan-National to Belfast City

When to book flights from Washington, D.C. Reagan-National Airport to Belfast City Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Belfast City Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Belfast City Airport (DCA to BHD) 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 City Airport

Fastest flight time

13h 32m

Direct flights

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

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

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

    Belfast City is 3378.1 mi away from Washington, D.C. Reagan-National. 13h 32m is a normal flight duration for this route.

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

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

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

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

    The necessary travel and health documents for your Belfast City 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.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newcastle
Bangor

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?

Yes. All flights to Belfast from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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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