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Cheap flights from Washington, D.C. Reagan-National Airport to Belfast from $571

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 6/30. 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
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
6:00 am - 3:55 pm
DCA
-
BFS
28h 55m
3 stops
Multiple Airlines Logo
6:15 am - 9:55 pm
BFS
-
DCA
20h 40m
2 stops
$835Multiple Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
6:00 am - 5:35 pm
DCA
-
BFS
30h 35m
3 stops
Multiple Airlines Logo
6:55 am - 9:55 pm
BFS
-
DCA
20h 00m
3 stops
$919Multiple Airlines
Sun, May 31 - Sat, Jun 6
Multiple Airlines Logo
6:00 am - 5:35 pm
DCA
-
BFS
30h 35m
3 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$926Multiple Airlines
Sun, May 31 - Sat, Jun 6
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
6:55 am - 8:53 am
BFS
-
DCA
30h 58m
3 stops
$944Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
6:55 am - 8:53 am
BFS
-
DCA
30h 58m
3 stops
$948Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$960Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 6:55 pm
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
7:20 am - 10:28 pm
BFS
-
DCA
20h 08m
2 stops
$969Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:00 am - 6:55 pm
DCA
-
BFS
31h 55m
3 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$976Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 8:55 am
DCA
-
BFS
20h 56m
2 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$1,060Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
6:59 am - 8:55 am
DCA
-
BFS
20h 56m
2 stops
Multiple Airlines Logo
6:55 am - 10:28 pm
BFS
-
DCA
20h 33m
2 stops
$1,066Multiple Airlines
Sat, Jun 6 - Sat, Jun 13

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momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Belfast Intl 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 May 4, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Wed 5/27

6:00 am-3:55 pm

3 stops28h 55m

Belfast Intl

Wed 6/3

6:15 am-9:55 pm

2 stops20h 40m

$835

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 5/31

6:00 am-5:35 pm

3 stops30h 35m

Belfast Intl

Sat 6/6

6:55 am-9:55 pm

3 stops20h 00m

$919

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 5/31

6:00 am-5:35 pm

3 stops30h 35m

Belfast Intl

Sat 6/6

6:55 am-10:28 pm

2 stops20h 33m

$926

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

6:55 am-8:53 am

3 stops30h 58m

$944

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

6:55 am-8:53 am

3 stops30h 58m

$948

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

6:55 am-10:28 pm

2 stops20h 33m

$960

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-6:55 pm

3 stops30h 56m

Belfast Intl

Sat 6/13

7:20 am-10:28 pm

2 stops20h 08m

$969

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:00 am-6:55 pm

3 stops31h 55m

Belfast Intl

Sat 6/13

6:55 am-10:28 pm

2 stops20h 33m

$976
Quickest round-trip

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-8:55 am

2 stops20h 56m

Belfast Intl

Sat 6/13

6:55 am-10:28 pm

2 stops20h 33m

$1,060

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

6:59 am-8:55 am

2 stops20h 56m

Belfast Intl

Sat 6/13

6:55 am-10:28 pm

2 stops20h 33m

$1,066

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

When to book flights from Washington, D.C. Reagan-National Airport to Belfast Intl 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 Intl 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 Intl Airport (DCA to BFS) 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 Intl Airport

Fastest flight time

14h 09m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Belfast Intl Airport takes 14h 09m
There are no direct flights from Washington, D.C. Reagan-National Airport to Belfast Intl Airport. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Belfast Intl Airport.
Search flight deals

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

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

    Washington, D.C. Reagan-National and Belfast Intl are 3364.1 mi apart from one another. By plane, this route typically takes 14h 09m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Belfast Intl 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 Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 Intl Airport.

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

    The necessary travel and health documents for your Belfast Intl 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.

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

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

    Price Alerts will notify you by email when the price for flights to Belfast Intl Airport from Washington, D.C. Reagan-National Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

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

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Cookstown
Ballymena
Newry
Dungannon

Why use momondo?

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

Finding the right flight to Belfast from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

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 in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Washington, D.C..

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

Price alerts on flights to Belfast from Washington, D.C. 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.

An easier way to manage your Belfast Intl Airport trip

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