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Cheap flights from District of Columbia to Belfast from $357

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Belfast departing on 8/4. 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

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Find the cheapest flights from District of Columbia to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:30 pm - 3:15 pm
IAD
-
BFS
13h 45m
2 stops
Multiple Airlines Logo
8:15 pm - 3:10 pm
BFS
-
IAD
47h 55m
3 stops
$860Multiple Airlines
Tue, Sep 1 - Mon, Sep 14
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
BFS
21h 50m
3 stops
Multiple Airlines Logo
8:15 pm - 3:10 pm
BFS
-
IAD
47h 55m
3 stops
$885Multiple Airlines
Tue, Sep 1 - Mon, Sep 14
Multiple Airlines Logo
5:05 pm - 3:15 pm
IAD
-
BFS
17h 10m
2 stops
Multiple Airlines Logo
7:00 am - 7:00 pm
BFS
-
IAD
41h 00m
3 stops
$910Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
BFS
21h 50m
3 stops
Multiple Airlines Logo
7:00 am - 7:00 pm
BFS
-
IAD
41h 00m
3 stops
$913Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
8:30 pm - 8:55 pm
IAD
-
BFS
19h 25m
2 stops
Multiple Airlines Logo
6:15 am - 7:20 pm
BFS
-
IAD
18h 05m
2 stops
$924Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
8:30 pm - 3:15 pm
IAD
-
BFS
13h 45m
2 stops
Multiple Airlines Logo
9:10 am - 8:35 pm
BFS
-
IAD
16h 25m
2 stops
$951Multiple Airlines
Tue, Sep 1 - Mon, Sep 14
Multiple Airlines Logo
8:18 am - 9:50 pm
IAD
-
BFS
32h 32m
3 stops
Multiple Airlines Logo
6:40 am - 8:29 pm
BFS
-
IAD
18h 49m
2 stops
$1,001Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
8:18 am - 4:30 pm
IAD
-
BFS
27h 12m
3 stops
Multiple Airlines Logo
9:05 pm - 8:29 pm
BFS
-
IAD
28h 24m
3 stops
$1,020Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
6:55 pm - 4:30 pm
DCA
-
BFS
16h 35m
2 stops
Multiple Airlines Logo
6:10 am - 8:53 am
BFS
-
DCA
31h 43m
3 stops
$1,030Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
8:18 am - 9:10 pm
IAD
-
BFS
31h 52m
3 stops
Multiple Airlines Logo
6:20 am - 7:00 pm
BFS
-
IAD
17h 40m
2 stops
$1,060Multiple Airlines
Wed, Jun 17 - Sun, Jun 21

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 8, 2026.
Use the filters below to find and compare flights from District of Columbia to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/1

8:30 pm-3:15 pm

2 stops13h 45m

Belfast Intl

Mon 9/14

8:15 pm-3:10 pm

3 stops47h 55m

$860

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/1

8:30 pm-11:20 pm

3 stops21h 50m

Belfast Intl

Mon 9/14

8:15 pm-3:10 pm

3 stops47h 55m

$885

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/29

5:05 pm-3:15 pm

2 stops17h 10m

Belfast Intl

Tue 10/6

7:00 am-7:00 pm

3 stops41h 00m

$910

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/29

8:30 pm-11:20 pm

3 stops21h 50m

Belfast Intl

Tue 10/6

7:00 am-7:00 pm

3 stops41h 00m

$913

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/29

8:30 pm-8:55 pm

2 stops19h 25m

Belfast Intl

Tue 10/6

6:15 am-7:20 pm

2 stops18h 05m

$924
Quickest round-trip

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/1

8:30 pm-3:15 pm

2 stops13h 45m

Belfast Intl

Mon 9/14

9:10 am-8:35 pm

2 stops16h 25m

$951

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Fri 6/5

8:18 am-9:50 pm

3 stops32h 32m

Belfast Intl

Thu 6/11

6:40 am-8:29 pm

2 stops18h 49m

$1,001

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Fri 6/5

8:18 am-4:30 pm

3 stops27h 12m

Belfast Intl

Thu 6/11

9:05 pm-8:29 pm

3 stops28h 24m

$1,020

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Fri 6/5

6:55 pm-4:30 pm

2 stops16h 35m

Belfast Intl

Thu 6/11

6:10 am-8:53 am

3 stops31h 43m

$1,030

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 6/17

8:18 am-9:10 pm

3 stops31h 52m

Belfast Intl

Sun 6/21

6:20 am-7:00 pm

2 stops17h 40m

$1,060

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Cheap District of Columbia to Belfast Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Belfast Intl Airport

Fastest flight time

10h 10m

Direct flights

None
The fastest flight from District of Columbia to Belfast Intl Airport takes 10h 10m
There are no direct flights from District of Columbia to Belfast Intl Airport. There are no popular flight routes from District of Columbia to Belfast Intl Airport.
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Frequently asked questions about flying from District of Columbia to Belfast Intl Airport

  • When did momondo last update prices for flights from District of Columbia to Belfast Intl Airport?

    Prices for flights from District of Columbia to Belfast Intl Airport are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Belfast Intl Airport?

  • How old do you have to be to fly from District of Columbia to Belfast Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from District of Columbia to Belfast Intl Airport.

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

    The travel and health documents you'll need for your trip to Belfast Intl 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 Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Belfast Intl Airport

Compare and see reviews for airlines that fly from District of Columbia to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $652Free CancellationRating
6.7
7,952 reviews
Search British Airways flights

Frequently asked questions about flying from District of Columbia to Belfast Intl Airport

  • How do I get Price Alerts for flights from District of Columbia to Belfast Intl Airport?

    Confirm your travel details to search for the latest offers for flights from District of Columbia to Belfast Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from District of Columbia to Belfast Intl Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • 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 District of Columbia to Belfast?

Finding the right flight to Belfast from District of Columbia 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 District of Columbia to Belfast with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Belfast from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to Belfast?

momondo helps you find the best flight between District of Columbia and Belfast 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 District of Columbia to Belfast right now. Can momondo alert me if prices change?

Yes. momondo can track prices for District of Columbia to Belfast 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.

An easier way to manage your Belfast Intl Airport trip

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