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Cheap flights from Washington, D.C. Reagan-National Airport to Belfast from £394

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 11/9. 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
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:40 - 19:50
DCA
-
BFS
29h 10m
3 stops
Multiple Airlines Logo
06:40 - 22:31
BFS
-
DCA
20h 51m
2 stops
£695Multiple Airlines
Tue, 14 Jul - Thu, 16 Jul
Multiple Airlines Logo
09:40 - 19:50
DCA
-
BFS
29h 10m
3 stops
Multiple Airlines Logo
06:40 - 21:48
BFS
-
DCA
20h 08m
3 stops
£708Multiple Airlines
Tue, 14 Jul - Thu, 16 Jul
Multiple Airlines Logo
18:55 - 17:50
DCA
-
BFS
17h 55m
2 stops
Multiple Airlines Logo
06:40 - 22:31
BFS
-
DCA
20h 51m
2 stops
£722Multiple Airlines
Tue, 14 Jul - Thu, 16 Jul
British Airways Logo
16:59 - 15:30
DCA
-
BHD
17h 31m
2 stops
British Airways Logo
12:40 - 23:35
BHD
-
DCA
15h 55m
2 stops
£769British Airways
Fri, 2 Oct - Tue, 13 Oct
Delta Logo
11:00 - 09:20
DCA
-
BHD
17h 20m
2 stops
Delta Logo
09:50 - 21:45
BHD
-
DCA
16h 55m
2 stops
£774Delta
Mon, 10 Aug - Thu, 20 Aug
American Airlines Logo
17:30 - 10:20
DCA
-
BHD
12h 50m
2 stops
American Airlines Logo
09:10 - 18:51
BHD
-
DCA
14h 41m
2 stops
£784American Airlines
Sun, 25 Oct - Sun, 15 Nov
Delta Logo
17:05 - 16:55
DCA
-
BHD
18h 50m
2 stops
Delta Logo
09:50 - 22:03
BHD
-
DCA
17h 13m
2 stops
£812Delta
Fri, 11 Sep - Wed, 16 Sep
Delta Logo
17:05 - 16:55
DCA
-
BHD
18h 50m
2 stops
Delta Logo
09:50 - 22:03
BHD
-
DCA
17h 13m
2 stops
£812Delta
Fri, 11 Sep - Wed, 16 Sep
British Airways Logo
11:56 - 08:50
DCA
-
BHD
15h 54m
2 stops
British Airways Logo
10:05 - 21:00
BHD
-
DCA
15h 55m
2 stops
£833British Airways
Fri, 11 Sep - Wed, 16 Sep
KLM Logo
13:50 - 09:20
DCA
-
BHD
14h 30m
2 stops
KLM Logo
09:50 - 20:33
BHD
-
DCA
15h 43m
2 stops
£834KLM
Sat, 22 Aug - Sun, 30 Aug

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Belfast flight tickets
Delta
10 Aug
DCA11:00Washington, D.C. Reagan-National
17h 20m
2 stops
BHD09:20Belfast City
20 Aug
BHD09:50Belfast City
16h 55m
2 stops
DCA21:45Washington, D.C. Reagan-National
£774
Delta
11 Sept
DCA17:05Washington, D.C. Reagan-National
18h 50m
2 stops
BHD16:55Belfast City
16 Sept
BHD09:50Belfast City
17h 13m
2 stops
DCA22:03Washington, D.C. Reagan-National
£812
Delta
11 Sept
DCA17:05Washington, D.C. Reagan-National
18h 50m
2 stops
BHD16:55Belfast City
16 Sept
BHD09:50Belfast City
17h 13m
2 stops
DCA22:03Washington, D.C. Reagan-National
£812

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

Our best KLM deals on Washington, D.C. Reagan-National Airport to Belfast flight tickets
KLM
22 Aug
DCA13:50Washington, D.C. Reagan-National
14h 30m
2 stops
BHD09:20Belfast City
30 Aug
BHD09:50Belfast City
15h 43m
2 stops
DCA20:33Washington, D.C. Reagan-National
£834
KLM
9 Jul
DCA13:42Washington, D.C. Reagan-National
14h 38m
2 stops
BHD09:20Belfast City
16 Jul
BHD09:50Belfast City
17h 13m
2 stops
DCA22:03Washington, D.C. Reagan-National
£1,018
KLM
6 Jul
DCA12:55Washington, D.C. Reagan-National
15h 25m
2 stops
BHD09:20Belfast City
18 Jul
BHD09:50Belfast City
17h 13m
2 stops
DCA22:03Washington, D.C. Reagan-National
£1,025

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 23 June 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 return flight

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 14/7

09:40-19:50

3 stops29h 10m

Belfast Intl

Thu 16/7

06:40-22:31

2 stops20h 51m

£695

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 14/7

09:40-19:50

3 stops29h 10m

Belfast Intl

Thu 16/7

06:40-21:48

3 stops20h 08m

£708

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 14/7

18:55-17:50

2 stops17h 55m

Belfast Intl

Thu 16/7

06:40-22:31

2 stops20h 51m

£722

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 2/10

16:59-15:30

2 stops17h 31m

Belfast City

Tue 13/10

12:40-23:35

2 stops15h 55m

£769

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 10/8

11:00-09:20

2 stops17h 20m

Belfast City

Thu 20/8

09:50-21:45

2 stops16h 55m

£774
Fastest return journey

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 25/10

17:30-10:20

2 stops12h 50m

Belfast City

Sun 15/11

09:10-18:51

2 stops14h 41m

£784

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 11/9

17:05-16:55

2 stops18h 50m

Belfast City

Wed 16/9

09:50-22:03

2 stops17h 13m

£812

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 11/9

17:05-16:55

2 stops18h 50m

Belfast City

Wed 16/9

09:50-22:03

2 stops17h 13m

£812

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 11/9

11:56-08:50

2 stops15h 54m

Belfast City

Wed 16/9

10:05-21:00

2 stops15h 55m

£833

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sat 22/8

13:50-09:20

2 stops14h 30m

Belfast City

Sun 30/8

09:50-20:33

2 stops15h 43m

£834

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 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?

Delta 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

14h 30m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Belfast takes 14h 30m
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?

    The straight-line distance from Washington, D.C. Reagan-National to Belfast is 3376.1 mi. In terms of flight time, this usually takes a little over 14h 30m.

  • 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 updated daily.

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

    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.

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

    The travel and health documents you'll need for your trip to Belfast 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 Belfast. It is always advisable to seek 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?

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 Belfast from Washington, D.C..

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

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

Once you have performed a search for Washington, D.C. to Belfast flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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