Cheap flights from Belfast to Washington, D.C. from £589

This is the cheapest return 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 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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0 bags
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Cheap return flights

American Airlines Logo
09:05 - 19:55BHD-DCA
15h 50m2 stops
American Airlines Logo
14:54 - 10:40DCA-BHD
14h 46m2 stops
£589American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
British Airways Logo
06:35 - 16:11BHD-DCA
14h 36m2 stops
British Airways Logo
16:51 - 11:10DCA-BHD
13h 19m2 stops
£591British Airways
Find Deal
Mon, 3 Nov - Sat, 8 Nov
British Airways Logo
08:45 - 20:00BHD-DCA
16h 15m2 stops
British Airways Logo
19:55 - 10:40DCA-BHD
33h 45m2 stops
£596British Airways
Find Deal
Fri, 21 Nov - Sun, 23 Nov
Delta Logo
06:30 - 18:05BHD-DCA
16h 35m2 stops
Delta Logo
17:05 - 21:00DCA-BHD
22h 55m2 stops
£914Delta
Find Deal
Sat, 13 Dec - Fri, 2 Jan
Delta Logo
06:30 - 22:12BHD-DCA
20h 42m2 stops
Delta Logo
17:00 - 16:55DCA-BHD
18h 55m2 stops
£1,239Delta
Find Deal
Mon, 18 Aug - Fri, 22 Aug

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

Our best British Airways deals on Belfast to Washington, D.C. Reagan-National Airport flight tickets
British Airways
3 Nov
BHD06:35Belfast City
14h 36m
2 stops
DCA16:11Washington, D.C. Reagan-National
8 Nov
DCA16:51Washington, D.C. Reagan-National
13h 19m
2 stops
BHD11:10Belfast City
British Airways
21 Nov
BHD08:45Belfast City
16h 15m
2 stops
DCA20:00Washington, D.C. Reagan-National
23 Nov
DCA19:55Washington, D.C. Reagan-National
33h 45m
2 stops
BHD10:40Belfast City

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

Our best Delta deals on Belfast to Washington, D.C. Reagan-National Airport flight tickets
Delta
13 Dec
BHD06:30Belfast City
16h 35m
2 stops
DCA18:05Washington, D.C. Reagan-National
2 Jan
DCA17:05Washington, D.C. Reagan-National
22h 55m
2 stops
BHD21:00Belfast City
Delta
18 Aug
BHD06:30Belfast City
20h 42m
2 stops
DCA22:12Washington, D.C. Reagan-National
22 Aug
DCA17:00Washington, D.C. Reagan-National
18h 55m
2 stops
BHD16:55Belfast City

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 3 August 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 4/12

09:05-19:55

2 stops15h 50m

Washington, D.C. Reagan-National

Mon 8/12

14:54-10:40

2 stops14h 46m

£589

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 3/11

06:35-16:11

2 stops14h 36m

Washington, D.C. Reagan-National

Sat 8/11

16:51-11:10

2 stops13h 19m

£591

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 21/11

08:45-20:00

2 stops16h 15m

Washington, D.C. Reagan-National

Sun 23/11

19:55-10:40

2 stops33h 45m

£596

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Sat 13/12

06:30-18:05

2 stops16h 35m

Washington, D.C. Reagan-National

Fri 2/1

17:05-21:00

2 stops22h 55m

£914

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 18/8

06:30-22:12

2 stops20h 42m

Washington, D.C. Reagan-National

Fri 22/8

17:00-16:55

2 stops18h 55m

£1,239

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 18/11

08:45-21:29

2 stops17h 44m

£706

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

£706

Fastest flight time

14h 36m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from Belfast in the past 72 hours is £706. The best return flight deal from Belfast to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is £589.
The fastest flight from Belfast to Washington, D.C. Reagan-National Airport takes 14h 36m
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.

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

    The straight-line distance from Belfast to Washington, D.C. Reagan-National is 3376.1 mi. Flights usually cover this in 14h 36m, depending on flying conditions and air traffic around both airports.

  • 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 travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


  • How do I get Price Alerts for flights from Belfast to Washington, D.C. Reagan-National Airport?

    Search flight deals from Belfast to Washington, D.C. Reagan-National Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Belfast to Washington, D.C. Reagan-National Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.


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 Belfast to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Belfast.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Belfast with this policy.

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?

Price alerts on flights to Washington, D.C. from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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1 adult
Fri 8/8
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