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Cheap flights from Washington, D.C. to Belfast from $784

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:40 pm - 7:45 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
19h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
3:25 pm - 8:35 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
34h 10m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado
$784Multiple Airlines
Wed, Dec 9 - Sat, Dec 12
Multiple Airlines Logo
8:30 pm - 8:25 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
18h 55m2 stops Reykjavik Keflavik Intl London Gatwick
Multiple Airlines Logo
8:30 pm - 7:00 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
27h 30m3 stops Malaga Madrid Barajas Casablanca Mohamed V
$841Multiple Airlines
Wed, Apr 7 - Sun, Apr 11
Multiple Airlines Logo
7:40 pm - 8:30 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
19h 50m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Edinburgh Turnhouse
Multiple Airlines Logo
5:30 pm - 1:10 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
24h 40m3 stops London Stansted Madrid Barajas Bogotá El Dorado
$842Multiple Airlines
Thu, Jan 28 - Mon, Feb 1
Multiple Airlines Logo
7:40 pm - 7:50 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
19h 10m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
5:30 pm - 1:10 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
24h 40m3 stops London Stansted Madrid Barajas Bogotá El Dorado
$853Multiple Airlines
Thu, Jan 28 - Mon, Feb 1
Multiple Airlines Logo
5:25 pm - 7:35 pmIAD  Washington, D.C. Dulles Intl-BHD Belfast City
21h 10m2 stops Lisbon Humberto Delgado London Gatwick
Multiple Airlines Logo
10:10 am - 2:40 pmBHD  Belfast City-IAD Washington, D.C. Dulles Intl
33h 30m3 stops London Gatwick Porto Lisbon Humberto Delgado
$855Multiple Airlines
Thu, Jan 28 - Mon, Feb 1
Multiple Airlines Logo
8:30 pm - 6:00 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
16h 30m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Manchester
Multiple Airlines Logo
8:30 pm - 7:00 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
27h 30m3 stops Malaga Madrid Barajas Casablanca Mohamed V
$860Multiple Airlines
Wed, Apr 7 - Sun, Apr 11
Multiple Airlines Logo
8:30 pm - 8:25 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
18h 55m2 stops Reykjavik Keflavik Intl London Gatwick
Multiple Airlines Logo
6:10 am - 8:35 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
19h 25m2 stops Barcelona-El Prat Lisbon Humberto Delgado
$917Multiple Airlines
Wed, Apr 7 - Sun, Apr 11
Multiple Airlines Logo
5:15 pm - 8:55 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
22h 40m2 stops Dublin Manchester
Multiple Airlines Logo
7:20 pm - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
28h 10m3 stops London Stansted Stockholm Arlanda Reykjavik Keflavik Intl
$929Multiple Airlines
Tue, Feb 9 - Fri, Feb 19
Multiple Airlines Logo
5:15 pm - 8:55 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
22h 40m3 stops Dublin Madrid Barajas Manchester
Multiple Airlines Logo
7:20 pm - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
28h 10m3 stops London Stansted Helsinki-Vantaa Reykjavik Keflavik Intl
$936Multiple Airlines
Tue, Feb 9 - Fri, Feb 19
Multiple Airlines Logo
11:20 pm - 10:10 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
18h 50m2 stops Reykjavik Keflavik Intl London Gatwick
Multiple Airlines Logo
6:20 am - 7:00 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
17h 40m2 stops Alicante Casablanca Mohamed V
$939Multiple Airlines
Fri, Mar 26 - Sun, Apr 4

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British Airways flights from Washington, D.C. to Belfast

Our best British Airways deals on Washington, D.C. to Belfast flight tickets
British Airways
Apr 21
IAD5:40 pmWashington, D.C. Dulles Intl
13h 20m
1 stop
BHD12:00 pmBelfast City
Apr 28
BHD10:05 amBelfast City
10h 45m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$980
British Airways
Apr 13
IAD5:40 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
BHD9:00 amBelfast City
Apr 20
BHD9:40 amBelfast City
11h 10m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$985
British Airways
Apr 13
IAD5:40 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
BHD9:00 amBelfast City
Apr 20
BHD9:40 amBelfast City
11h 10m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$986

KLM flights from Washington, D.C. to Belfast

Our best KLM deals on Washington, D.C. to Belfast flight tickets
KLM
Apr 13
IAD6:30 pmWashington, D.C. Dulles Intl
17h 25m
2 stops
BHD4:55 pmBelfast City
Apr 20
BHD9:50 amBelfast City
19h 30m
2 stops
IAD12:20 amWashington, D.C. Dulles Intl
$1,029
KLM
Apr 13
IAD6:30 pmWashington, D.C. Dulles Intl
17h 25m
2 stops
BHD4:55 pmBelfast City
Apr 20
BHD9:50 amBelfast City
19h 30m
2 stops
IAD12:20 amWashington, D.C. Dulles Intl
$1,032
KLM
Apr 13
IAD6:30 pmWashington, D.C. Dulles Intl
17h 25m
2 stops
BHD4:55 pmBelfast City
Apr 20
BHD9:50 amBelfast City
19h 30m
2 stops
IAD12:20 amWashington, D.C. Dulles Intl
$1,033

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Wed 12/9

7:40 pm-7:45 pm

2 stops19h 05m

Belfast Intl

Sat 12/12

3:25 pm-8:35 pm

3 stops34h 10m

$784

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Wed 4/7

8:30 pm-8:25 pm

2 stops18h 55m

Belfast Intl

Sun 4/11

8:30 pm-7:00 pm

3 stops27h 30m

$841

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Thu 1/28

7:40 pm-8:30 pm

3 stops19h 50m

Belfast Intl

Mon 2/1

5:30 pm-1:10 pm

3 stops24h 40m

$842

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Thu 1/28

7:40 pm-7:50 pm

2 stops19h 10m

Belfast Intl

Mon 2/1

5:30 pm-1:10 pm

3 stops24h 40m

$853

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BHD Belfast City

IADBHD

Washington, D.C. Dulles Intl

Thu 1/28

5:25 pm-7:35 pm

2 stops21h 10m

Belfast City

Mon 2/1

10:10 am-2:40 pm

3 stops33h 30m

$855

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Wed 4/7

8:30 pm-6:00 pm

3 stops16h 30m

Belfast Intl

Sun 4/11

8:30 pm-7:00 pm

3 stops27h 30m

$860

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Wed 4/7

8:30 pm-8:25 pm

2 stops18h 55m

Belfast Intl

Sun 4/11

6:10 am-8:35 pm

2 stops19h 25m

$917

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Tue 2/9

5:15 pm-8:55 pm

2 stops22h 40m

Belfast Intl

Fri 2/19

7:20 pm-6:30 pm

3 stops28h 10m

$929

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Tue 2/9

5:15 pm-8:55 pm

3 stops22h 40m

Belfast Intl

Fri 2/19

7:20 pm-6:30 pm

3 stops28h 10m

$936
Quickest round-trip

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Fri 3/26

11:20 pm-10:10 pm

2 stops18h 50m

Belfast Intl

Sun 4/4

6:20 am-7:00 pm

2 stops17h 40m

$939

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Belfast from

How to get the cheapest flight ticket from Washington, D.C. 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

How long does it take to fly to Belfast?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Belfast you fly into. For example, flying from Baltimore to Belfast Intl Airport takes 11h 15m on average. On the other hand, flying from Washington, D.C. to Belfast Intl Airport takes 11h 16m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Cheap Washington, D.C. to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Belfast

Best Price Found

$784

Fastest flight time

10h 20m

Direct flights

None
The best flight deal from Washington, D.C. to Belfast found on momondo in the last 72 hours is $784
The fastest flight from Washington, D.C. to Belfast takes 10h 20m
There are no direct flights from Washington, D.C. to Belfast. There are no popular flight routes from Washington, D.C. to Belfast.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Belfast

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

    Washington, D.C. and Belfast are 3373.5 mi apart from one another. In terms of flight time, this usually takes a little over 10h 20m.

  • When did momondo last update prices for flights from Washington, D.C. to Belfast?

    Prices for flights from Washington, D.C. to Belfast refresh daily.

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

    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 Washington, D.C. to Belfast.

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

    The necessary travel and health documents for your Belfast 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.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Belfast for you.

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

Yes. All flights to Belfast from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Of course. momondo tracks the price of Washington, D.C. to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Belfast Intl Airport
Belfast City Airport