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Cheap flights from Washington, D.C. to Belfast from $647

This is the cheapest round-trip 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 2/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:04 pm - 1:55 pm
BWI
-
BHD
14h 51m
2 stops
American Airlines Logo
2:40 pm - 7:45 pm
BHD
-
BWI
33h 05m
1 stop
$647American Airlines
Sun, Feb 22 - Mon, Mar 9
British Airways Logo
6:20 pm - 9:10 am
IAD
-
BHD
9h 50m
1 stop
British Airways Logo
6:30 am - 3:35 pm
BHD
-
IAD
14h 05m
1 stop
$650British Airways
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
6:20 pm - 9:10 am
IAD
-
BHD
9h 50m
1 stop
British Airways Logo
6:30 am - 3:35 pm
BHD
-
IAD
14h 05m
1 stop
$651British Airways
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
6:20 pm - 10:15 am
IAD
-
BHD
10h 55m
1 stop
British Airways Logo
8:25 pm - 8:55 pm
BHD
-
IAD
28h 30m
1 stop
$652British Airways
Wed, Mar 4 - Sun, Mar 8
KLM Logo
6:05 pm - 4:50 pm
IAD
-
BHD
17h 45m
1 stop
KLM Logo
6:30 am - 5:05 pm
BHD
-
IAD
14h 35m
1 stop
$654KLM
Sun, Feb 22 - Mon, Mar 9
British Airways Logo
9:45 pm - 8:25 am
IAD
-
BHD
29h 40m
1 stop
British Airways Logo
6:35 am - 8:55 pm
BHD
-
IAD
18h 20m
1 stop
$657British Airways
Thu, Mar 5 - Thu, Mar 12
Delta Logo
6:00 am - 9:00 pm
BWI
-
BHD
34h 00m
2 stops
Delta Logo
5:20 pm - 11:01 pm
BHD
-
BWI
33h 41m
2 stops
$676Delta
Sun, Feb 22 - Mon, Mar 9
Multiple Airlines Logo
6:05 pm - 4:50 pm
IAD
-
BHD
17h 45m
1 stop
Multiple Airlines Logo
6:30 am - 8:46 pm
BHD
-
IAD
18h 16m
2 stops
$681Multiple Airlines
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
6:05 pm - 4:50 pm
IAD
-
BHD
17h 45m
1 stop
Multiple Airlines Logo
6:30 am - 10:59 pm
BHD
-
IAD
20h 29m
2 stops
$682Multiple Airlines
Thu, Mar 5 - Thu, Mar 12
Delta Logo
12:24 pm - 4:50 pm
IAD
-
BHD
23h 26m
2 stops
Delta Logo
6:30 am - 7:19 pm
BHD
-
IAD
16h 49m
2 stops
$751Delta
Thu, Mar 5 - Thu, Mar 12

Aer Lingus flights from Washington, D.C. to Belfast City Airport

Our best Aer Lingus deals on Washington, D.C. to Belfast City Airport flight tickets
Aer Lingus
Apr 2
IAD5:15 pmWashington, D.C. Dulles Intl
16h 40m
2 stops
BHD2:55 pmBelfast City
Apr 7
BHD10:55 amBelfast City
33h 50m
2 stops
IAD3:45 pmWashington, D.C. Dulles Intl
$868
Aer Lingus
Apr 2
IAD5:15 pmWashington, D.C. Dulles Intl
16h 40m
2 stops
BHD2:55 pmBelfast City
Apr 7
BHD10:55 amBelfast City
33h 50m
2 stops
IAD3:45 pmWashington, D.C. Dulles Intl
$880
Aer Lingus
May 5
IAD5:15 pmWashington, D.C. Dulles Intl
13h 40m
2 stops
BHD11:55 amBelfast City
May 8
BHD9:50 amBelfast City
14h 20m
2 stops
IAD7:10 pmWashington, D.C. Dulles Intl
$989

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
Mar 4
IAD6:20 pmWashington, D.C. Dulles Intl
9h 50m
1 stop
BHD9:10 amBelfast City
Mar 8
BHD10:40 amBelfast City
14h 15m
1 stop
IAD8:55 pmWashington, D.C. Dulles Intl
$650
British Airways
Mar 4
IAD6:20 pmWashington, D.C. Dulles Intl
9h 50m
1 stop
BHD9:10 amBelfast City
Mar 8
BHD6:30 amBelfast City
14h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$651
British Airways
Mar 4
IAD6:20 pmWashington, D.C. Dulles Intl
10h 55m
1 stop
BHD10:15 amBelfast City
Mar 8
BHD8:25 pmBelfast City
28h 30m
1 stop
IAD8:55 pmWashington, D.C. Dulles Intl
$652

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 February 6, 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

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 2/22

6:04 pm-1:55 pm

2 stops14h 51m

Belfast City

Mon 3/9

2:40 pm-7:45 pm

1 stop33h 05m

$647

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

6:20 pm-9:10 am

1 stop9h 50m

Belfast City

Sun 3/8

6:30 am-3:35 pm

1 stop14h 05m

$650

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

6:20 pm-9:10 am

1 stop9h 50m

Belfast City

Sun 3/8

6:30 am-3:35 pm

1 stop14h 05m

$651

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

6:20 pm-10:15 am

1 stop10h 55m

Belfast City

Sun 3/8

8:25 pm-8:55 pm

1 stop28h 30m

$652

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 2/22

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Mon 3/9

6:30 am-5:05 pm

1 stop14h 35m

$654

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

9:45 pm-8:25 am

1 stop29h 40m

Belfast City

Thu 3/12

6:35 am-8:55 pm

1 stop18h 20m

$657

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 2/22

6:00 am-9:00 pm

2 stops34h 00m

Belfast City

Mon 3/9

5:20 pm-11:01 pm

2 stops33h 41m

$676

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Thu 3/12

6:30 am-8:46 pm

2 stops18h 16m

$681

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Thu 3/12

6:30 am-10:59 pm

2 stops20h 29m

$682

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

12:24 pm-4:50 pm

2 stops23h 26m

Belfast City

Thu 3/12

6:30 am-7:19 pm

2 stops16h 49m

$751

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

Can stopping save me money on Washington, D.C. to Belfast City Airport flights?

You could potentially save up to 35% on your flight if you consider stops on a Washington, D.C. to Belfast City Airport flight.

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 50m

Direct flights

None
The fastest flight from Washington, D.C. to Belfast City Airport takes 9h 50m
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

  • 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 50m, 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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