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Cheap flights from Washington, D.C. Dulles Intl Airport to Belfast from $483

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. Dulles Intl Airport to Belfast departing on 7/2. 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. Dulles Intl Airport to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:30 pm - 1:35 pm
IAD
-
BHD
11h 05m
1 stop
British Airways Logo
10:05 am - 7:40 pm
BHD
-
IAD
14h 35m
1 stop
$955British Airways
Wed, Aug 19 - Wed, Aug 26
British Airways Logo
5:35 pm - 9:00 am
IAD
-
BHD
10h 25m
1 stop
British Airways Logo
1:45 pm - 8:20 pm
BHD
-
IAD
11h 35m
1 stop
$965British Airways
Tue, May 5 - Tue, May 12
British Airways Logo
9:30 pm - 3:40 pm
IAD
-
BHD
13h 10m
1 stop
British Airways Logo
11:35 am - 8:20 pm
BHD
-
IAD
13h 45m
1 stop
$977British Airways
Wed, Aug 19 - Wed, Aug 26
British Airways Logo
10:25 pm - 5:30 pm
IAD
-
BHD
14h 05m
1 stop
British Airways Logo
7:35 pm - 8:20 pm
BHD
-
IAD
29h 45m
1 stop
$983British Airways
Mon, May 4 - Mon, May 11
British Airways Logo
7:15 pm - 12:00 pm
IAD
-
BHD
11h 45m
1 stop
British Airways Logo
11:35 am - 8:20 pm
BHD
-
IAD
13h 45m
1 stop
$987British Airways
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
8:30 pm - 8:35 pm
IAD
-
BHD
19h 05m
2 stops
Multiple Airlines Logo
7:00 am - 7:20 pm
BHD
-
IAD
17h 20m
2 stops
$989Multiple Airlines
Sat, Apr 25 - Sun, May 3
Multiple Airlines Logo
1:20 pm - 8:50 pm
IAD
-
BHD
26h 30m
2 stops
Multiple Airlines Logo
7:00 am - 11:35 am
BHD
-
IAD
33h 35m
2 stops
$999Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
8:30 pm - 5:50 pm
IAD
-
BHD
16h 20m
2 stops
Multiple Airlines Logo
7:00 am - 7:20 pm
BHD
-
IAD
17h 20m
2 stops
$1,002Multiple Airlines
Tue, May 5 - Tue, May 12
American Airlines Logo
5:35 pm - 7:50 pm
IAD
-
BHD
21h 15m
1 stop
American Airlines Logo
11:35 am - 11:59 pm
BHD
-
IAD
17h 24m
2 stops
$1,007American Airlines
Wed, May 6 - Wed, May 13
KLM Logo
6:50 pm - 4:55 pm
IAD
-
BHD
17h 05m
2 stops
KLM Logo
5:30 pm - 3:35 pm
BHD
-
IAD
27h 05m
1 stop
$1,012KLM
Tue, May 5 - Tue, May 12

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

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Belfast City Airport flight tickets
Aer Lingus
Apr 30
IAD5:15 pmWashington, D.C. Dulles Intl
16h 45m
2 stops
BHD3:00 pmBelfast City
May 6
BHD6:20 pmBelfast City
26h 25m
2 stops
IAD3:45 pmWashington, D.C. Dulles Intl
$1,191
Aer Lingus
May 19
IAD9:05 pmWashington, D.C. Dulles Intl
14h 30m
2 stops
BHD4:35 pmBelfast City
May 25
BHD6:20 pmBelfast City
26h 25m
2 stops
IAD3:45 pmWashington, D.C. Dulles Intl
$1,210
Aer Lingus
May 9
IAD8:40 pmWashington, D.C. Dulles Intl
13h 15m
2 stops
BHD2:55 pmBelfast City
May 16
BHD6:50 amBelfast City
17h 20m
2 stops
IAD7:10 pmWashington, D.C. Dulles Intl
$1,216

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

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Belfast City Airport flight tickets
British Airways
Aug 19
IAD9:30 pmWashington, D.C. Dulles Intl
11h 05m
1 stop
BHD1:35 pmBelfast City
Aug 26
BHD10:05 amBelfast City
14h 35m
1 stop
IAD7:40 pmWashington, D.C. Dulles Intl
$955
British Airways
May 5
IAD5:35 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
BHD9:00 amBelfast City
May 12
BHD1:45 pmBelfast City
11h 35m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$965
British Airways
Aug 19
IAD9:30 pmWashington, D.C. Dulles Intl
13h 10m
1 stop
BHD3:40 pmBelfast City
Aug 26
BHD11:35 amBelfast City
13h 45m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$977

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 April 11, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Wed 8/19

9:30 pm-1:35 pm

1 stop11h 05m

Belfast City

Wed 8/26

10:05 am-7:40 pm

1 stop14h 35m

$955
Quickest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

5:35 pm-9:00 am

1 stop10h 25m

Belfast City

Tue 5/12

1:45 pm-8:20 pm

1 stop11h 35m

$965

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 8/19

9:30 pm-3:40 pm

1 stop13h 10m

Belfast City

Wed 8/26

11:35 am-8:20 pm

1 stop13h 45m

$977

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 5/4

10:25 pm-5:30 pm

1 stop14h 05m

Belfast City

Mon 5/11

7:35 pm-8:20 pm

1 stop29h 45m

$983

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 5/6

7:15 pm-12:00 pm

1 stop11h 45m

Belfast City

Wed 5/13

11:35 am-8:20 pm

1 stop13h 45m

$987

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 4/25

8:30 pm-8:35 pm

2 stops19h 05m

Belfast City

Sun 5/3

7:00 am-7:20 pm

2 stops17h 20m

$989

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 5/6

1:20 pm-8:50 pm

2 stops26h 30m

Belfast City

Wed 5/13

7:00 am-11:35 am

2 stops33h 35m

$999

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

8:30 pm-5:50 pm

2 stops16h 20m

Belfast City

Tue 5/12

7:00 am-7:20 pm

2 stops17h 20m

$1,002

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 5/6

5:35 pm-7:50 pm

1 stop21h 15m

Belfast City

Wed 5/13

11:35 am-11:59 pm

2 stops17h 24m

$1,007

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

6:50 pm-4:55 pm

2 stops17h 05m

Belfast City

Tue 5/12

5:30 pm-3:35 pm

1 stop27h 05m

$1,012

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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. Dulles Intl Airport 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. Dulles Intl Airport to Belfast City Airport flights?

You could potentially save up to 3% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Belfast City Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Belfast City Airport (IAD to BHD) flight deals and tips

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

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Belfast City Airport takes 10h 15m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Belfast City Airport.
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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Belfast City Airport

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

    Belfast City is 3389.6 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 10h 15m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport are refreshed on a daily basis.

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

It is quick and easy to find Washington, D.C. to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits 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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Belfast.

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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