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Cheap flights from Washington, D.C. to Belfast from $346

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. to Belfast departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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
8:30 pm - 6:40 pm
IAD
-
BHD
17h 10m
2 stops
Multiple Airlines Logo
7:00 am - 10:15 pm
BHD
-
IAD
20h 15m
2 stops
$871Multiple Airlines
Thu, Oct 1 - Wed, Oct 7
Multiple Airlines Logo
11:20 pm - 8:30 pm
BWI
-
BHD
16h 10m
2 stops
Multiple Airlines Logo
8:35 pm - 7:35 pm
BHD
-
BWI
28h 00m
1 stop
$948Multiple Airlines
Thu, Oct 1 - Wed, Oct 7
British Airways Logo
8:35 pm - 11:30 am
BWI
-
BHD
9h 55m
1 stop
British Airways Logo
9:10 am - 6:45 pm
BHD
-
BWI
14h 35m
1 stop
$957British Airways
Tue, Nov 24 - Sun, Nov 29
Multiple Airlines Logo
8:30 pm - 7:40 pm
IAD
-
BHD
18h 10m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
BHD
-
IAD
17h 25m
2 stops
$968Multiple Airlines
Sat, Sep 19 - Mon, Oct 19
British Airways Logo
10:25 pm - 3:30 pm
IAD
-
BHD
12h 05m
1 stop
British Airways Logo
11:35 am - 5:25 pm
BHD
-
IAD
10h 50m
1 stop
$969British Airways
Thu, Oct 1 - Wed, Oct 7
British Airways Logo
9:45 pm - 2:15 pm
IAD
-
BHD
11h 30m
1 stop
British Airways Logo
6:35 am - 7:55 pm
BHD
-
IAD
18h 20m
1 stop
$974British Airways
Mon, Nov 16 - Thu, Nov 19
British Airways Logo
8:35 pm - 1:55 pm
BWI
-
BHD
12h 20m
1 stop
British Airways Logo
11:05 am - 6:45 pm
BHD
-
BWI
12h 40m
1 stop
$974British Airways
Sun, Nov 15 - Thu, Nov 19
Delta Logo
6:10 pm - 9:20 am
IAD
-
BHD
10h 10m
1 stop
Delta Logo
9:50 am - 3:35 pm
BHD
-
IAD
10h 45m
1 stop
$1,010Delta
Mon, Aug 10 - Thu, Aug 20
Delta Logo
5:47 pm - 4:55 pm
IAD
-
BHD
18h 08m
2 stops
Delta Logo
9:50 am - 3:35 pm
BHD
-
IAD
10h 45m
1 stop
$1,015Delta
Mon, Aug 10 - Thu, Aug 20
American Airlines Logo
5:20 pm - 3:30 pm
BWI
-
BHD
17h 10m
2 stops
American Airlines Logo
6:30 am - 9:40 pm
BHD
-
BWI
20h 10m
2 stops
$1,040American Airlines
Thu, Oct 1 - Wed, Oct 7

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

Our best British Airways deals on Washington, D.C. to Belfast City Airport flight tickets
British Airways
Nov 24
BWI8:35 pmBaltimore/Washington
9h 55m
1 stop
BHD11:30 amBelfast City
Nov 29
BHD9:10 amBelfast City
14h 35m
1 stop
BWI6:45 pmBaltimore/Washington
$957
British Airways
Oct 1
IAD10:25 pmWashington, D.C. Dulles Intl
12h 05m
1 stop
BHD3:30 pmBelfast City
Oct 7
BHD11:35 amBelfast City
10h 50m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$969
British Airways
Nov 16
IAD9:45 pmWashington, D.C. Dulles Intl
11h 30m
1 stop
BHD2:15 pmBelfast City
Nov 19
BHD6:35 amBelfast City
18h 20m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
$974

American Airlines flights from Washington, D.C. to Belfast City Airport

Our best American Airlines deals on Washington, D.C. to Belfast City Airport flight tickets
American Airlines
Oct 1
IAD7:10 pmWashington, D.C. Dulles Intl
15h 20m
2 stops
BHD3:30 pmBelfast City
Oct 7
BHD10:05 amBelfast City
15h 15m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$1,030
American Airlines
Oct 1
BWI5:20 pmBaltimore/Washington
17h 10m
2 stops
BHD3:30 pmBelfast City
Oct 7
BHD6:30 amBelfast City
20h 10m
2 stops
BWI9:40 pmBaltimore/Washington
$1,040

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Belfast City 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 June 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 10/1

8:30 pm-6:40 pm

2 stops17h 10m

Belfast City

Wed 10/7

7:00 am-10:15 pm

2 stops20h 15m

$871

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 10/1

11:20 pm-8:30 pm

2 stops16h 10m

Belfast City

Wed 10/7

8:35 pm-7:35 pm

1 stop28h 00m

$948

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Tue 11/24

8:35 pm-11:30 am

1 stop9h 55m

Belfast City

Sun 11/29

9:10 am-6:45 pm

1 stop14h 35m

$957

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/19

8:30 pm-7:40 pm

2 stops18h 10m

Belfast City

Mon 10/19

7:00 am-7:25 pm

2 stops17h 25m

$968

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 10/1

10:25 pm-3:30 pm

1 stop12h 05m

Belfast City

Wed 10/7

11:35 am-5:25 pm

1 stop10h 50m

$969

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 11/16

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Thu 11/19

6:35 am-7:55 pm

1 stop18h 20m

$974

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 11/15

8:35 pm-1:55 pm

1 stop12h 20m

Belfast City

Thu 11/19

11:05 am-6:45 pm

1 stop12h 40m

$974
Quickest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 8/10

6:10 pm-9:20 am

1 stop10h 10m

Belfast City

Thu 8/20

9:50 am-3:35 pm

1 stop10h 45m

$1,010

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 8/10

5:47 pm-4:55 pm

2 stops18h 08m

Belfast City

Thu 8/20

9:50 am-3:35 pm

1 stop10h 45m

$1,015

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 10/1

5:20 pm-3:30 pm

2 stops17h 10m

Belfast City

Wed 10/7

6:30 am-9:40 pm

2 stops20h 10m

$1,040

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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. to Belfast City Airport

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. to Belfast City?

Air France, Aer Lingus, and Delta are the most popular carriers operating from Washington, D.C. to Belfast City

When to book flights from Washington, D.C. to Belfast City Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Belfast City Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Belfast City Airport (WAS to BHD) flight deals and tips

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

Fastest flight time

9h 55m

Direct flights

None
The fastest flight from Washington, D.C. to Belfast City Airport takes 9h 55m
There are no direct flights from Washington, D.C. to Belfast City Airport. There are no popular flight routes from Washington, D.C. to Belfast City Airport.
Search flight deals

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

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

    The distance between Washington, D.C. and Belfast City is about 3375.4 mi. Flights usually cover this in 9h 55m, depending on flying conditions and air traffic around both airports.

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

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

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

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

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

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newcastle
Bangor

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. momondo allows you to filter the results for Washington, D.C. to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Belfast?

momondo provides multiple filters to help you find the best flight to Belfast from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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