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Cheap flights from Northern Ireland to Washington, D.C. from £590

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Washington, D.C. departing on 4/12. 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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Cheap return flights

American Airlines Logo
11:05 - 22:15BHD-DCA
16h 10m2 stops
American Airlines Logo
15:59 - 10:40DCA-BHD
13h 41m2 stops
£590American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
09:05 - 18:59BHD-DCA
14h 54m2 stops
American Airlines Logo
18:39 - 16:05DCA-BHD
16h 26m2 stops
£591American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
KLM Logo
06:30 - 17:10BHD-DCA
15h 40m2 stops
KLM Logo
19:55 - 16:55DCA-BHD
16h 00m2 stops
£3,674KLM
Find Deal
Tue, 14 Oct - Wed, 22 Oct
KLM Logo
06:30 - 17:10BHD-DCA
15h 40m2 stops
KLM Logo
19:55 - 16:55DCA-BHD
16h 00m2 stops
£3,823KLM
Find Deal
Thu, 16 Oct - Tue, 21 Oct
Delta Logo
17:25 - 10:05BHD-DCA
21h 40m2 stops
Delta Logo
17:00 - 21:15DCA-BHD
23h 15m2 stops
£3,875Delta
Find Deal
Fri, 26 Sep - Sat, 4 Oct

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

Our best American Airlines deals on Northern Ireland to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
4 Dec
BHD11:05Belfast City
16h 10m
2 stops
DCA22:15Washington, D.C. Reagan-National
8 Dec
DCA15:59Washington, D.C. Reagan-National
13h 41m
2 stops
BHD10:40Belfast City
£590
Find similar
American Airlines
4 Dec
BHD09:05Belfast City
14h 54m
2 stops
DCA18:59Washington, D.C. Reagan-National
8 Dec
DCA18:39Washington, D.C. Reagan-National
16h 26m
2 stops
BHD16:05Belfast City
£591
Find similar

KLM flights from Northern Ireland to Washington, D.C. Reagan-National Airport

Our best KLM deals on Northern Ireland to Washington, D.C. Reagan-National Airport flight tickets
KLM
14 Oct
BHD06:30Belfast City
15h 40m
2 stops
DCA17:10Washington, D.C. Reagan-National
22 Oct
DCA19:55Washington, D.C. Reagan-National
16h 00m
2 stops
BHD16:55Belfast City
£3,674
Find similar
KLM
16 Oct
BHD06:30Belfast City
15h 40m
2 stops
DCA17:10Washington, D.C. Reagan-National
22 Oct
DCA19:55Washington, D.C. Reagan-National
16h 00m
2 stops
BHD16:55Belfast City
£3,823
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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 279,928 searches. Data last updated 19 August 2025.
Use the filters below to find and compare flights from Northern Ireland 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 4/12

11:05-22:15

2 stops16h 10m

Washington, D.C. Reagan-National

Mon 8/12

15:59-10:40

2 stops13h 41m

£590

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 4/12

09:05-18:59

2 stops14h 54m

Washington, D.C. Reagan-National

Mon 8/12

18:39-16:05

2 stops16h 26m

£591

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 14/10

06:30-17:10

2 stops15h 40m

Washington, D.C. Reagan-National

Wed 22/10

19:55-16:55

2 stops16h 00m

£3,674

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 16/10

06:30-17:10

2 stops15h 40m

Washington, D.C. Reagan-National

Tue 21/10

19:55-16:55

2 stops16h 00m

£3,823

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 26/9

17:25-10:05

2 stops21h 40m

Washington, D.C. Reagan-National

Sat 4/10

17:00-21:15

2 stops23h 15m

£3,875

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 2/10

06:30-08:01

2 stops30h 31m

£1,267

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

Delta is the most popular carrier operating from Northern Ireland to Washington, D.C. Reagan-National

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

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

Best price found

£1,267

Fastest flight time

14h 54m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from Northern Ireland in the past 72 hours is £1,267. The best return flight deal from Northern Ireland to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is £590.
The fastest flight from Northern Ireland to Washington, D.C. Reagan-National Airport takes 14h 54m
There are no direct flights from Northern Ireland 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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  • When did momondo last update prices for flights from Northern Ireland to Washington, D.C. Reagan-National Airport?

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

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

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

    The required travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
Essex
Alexandria
Fairfax
Manassas
Bethesda
Oxon Hill
College Park
Linthicum Heights
Gettysburg
Hanover
Cambridge
Ellicott City
Westminster
Arlington
Woodbridge
Owings Mills
Silver Spring
National Harbor

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Northern Ireland to Washington, D.C. flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Northern Ireland and Washington, D.C. 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 Northern Ireland to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Northern Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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