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Cheap flights from Belfast to Washington, D.C. from $576

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Washington, D.C. departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Belfast to Washington, D.C.

Cheap round-trip flights

American Airlines Logo
6:35 am - 4:49 pmBHD-DCA
15h 14m2 stops
American Airlines Logo
3:59 pm - 10:40 amDCA-BHD
13h 41m2 stops
$787American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
6:35 am - 5:59 pmBHD-DCA
16h 24m2 stops
American Airlines Logo
2:54 pm - 10:40 amDCA-BHD
14h 46m2 stops
$788American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
10:40 am - 10:38 pmBHD-DCA
16h 58m2 stops
American Airlines Logo
2:54 pm - 10:40 amDCA-BHD
14h 46m2 stops
$792American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8

American Airlines flights from Belfast to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Belfast to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Dec 4
BHD6:35 amBelfast City
15h 14m
2 stops
DCA4:49 pmWashington, D.C. Reagan-National
Dec 8
DCA3:59 pmWashington, D.C. Reagan-National
13h 41m
2 stops
BHD10:40 amBelfast City
$787
Find similar
American Airlines
Dec 4
BHD6:35 amBelfast City
16h 24m
2 stops
DCA5:59 pmWashington, D.C. Reagan-National
Dec 8
DCA2:54 pmWashington, D.C. Reagan-National
14h 46m
2 stops
BHD10:40 amBelfast City
$788
Find similar
American Airlines
Dec 4
BHD10:40 amBelfast City
16h 58m
2 stops
DCA10:38 pmWashington, D.C. Reagan-National
Dec 8
DCA2:54 pmWashington, D.C. Reagan-National
14h 46m
2 stops
BHD10:40 amBelfast City
$792
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Belfast to Washington, D.C. Reagan-National 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 July 31, 2025.
Use the filters below to find and compare flights from Belfast to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 12/4

6:35 am-4:49 pm

2 stops15h 14m

Washington, D.C. Reagan-National

Mon 12/8

3:59 pm-10:40 am

2 stops13h 41m

$787

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 12/4

6:35 am-5:59 pm

2 stops16h 24m

Washington, D.C. Reagan-National

Mon 12/8

2:54 pm-10:40 am

2 stops14h 46m

$788

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 12/4

10:40 am-10:38 pm

2 stops16h 58m

Washington, D.C. Reagan-National

Mon 12/8

2:54 pm-10:40 am

2 stops14h 46m

$792

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 9/8

7:05 am-8:59 am

3 stops30h 54m

$576

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 9/8

7:05 am-10:34 pm

2 stops20h 29m

$577

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 9/9

7:05 am-10:59 pm

3 stops20h 54m

$636

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 9/8

12:15 pm-11:07 pm

2 stops15h 52m

$1,010

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Sun 9/7

5:25 pm-6:10 pm

2 stops29h 45m

$1,641

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Sat 9/6

6:30 am-6:14 pm

2 stops16h 44m

$1,697

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Washington, D.C. from

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

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

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

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

Best Price Found

$576

Fastest flight time

15h 14m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from Belfast in the past 72 hours is $576. The best round-trip flight deal from Belfast to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $787.
The fastest flight from Belfast to Washington, D.C. Reagan-National Airport takes 15h 14m
There are no direct flights from Belfast to Washington, D.C. Reagan-National Airport. Popular non-direct route for this connection is Belfast City Airport - Washington, D.C. Reagan-National Airport.
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  • How far is Belfast to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 3376.1 mi away from Belfast. A reasonable flight in good conditions will take 15h 14m.

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

    Prices for flights from Belfast to Washington, D.C. Reagan-National Airport were last updated today.

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

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

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Woodbridge
Laurel
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Towson
Rockville
Colonial Beach
Gaithersburg
Fairfax
Reston
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Washington, D.C.?

It is quick and easy to find Belfast to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Flights from Belfast to Washington, D.C. 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 Belfast to Washington, D.C.?

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

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

Yes. momondo can track prices for Belfast to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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