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Cheap flights from Washington, D.C. Dulles Intl Airport to Belfast from $309

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 7/18. 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
7:20 pm - 10:30 am
IAD
-
BHD
11h 10m
1 stop
British Airways Logo
8:25 pm - 5:25 pm
BHD
-
IAD
26h 00m
1 stop
$647British Airways
Tue, Mar 24 - Tue, Mar 31
British Airways Logo
5:40 pm - 9:00 am
IAD
-
BHD
10h 20m
1 stop
British Airways Logo
8:35 pm - 3:50 pm
BHD
-
IAD
24h 15m
1 stop
$658British Airways
Tue, Apr 7 - Wed, Apr 15
British Airways Logo
10:45 pm - 4:40 pm
IAD
-
BHD
13h 55m
1 stop
British Airways Logo
10:40 am - 8:55 pm
BHD
-
IAD
14h 15m
1 stop
$667British Airways
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
7:05 pm - 4:40 pm
IAD
-
BHD
17h 35m
1 stop
Multiple Airlines Logo
5:20 pm - 5:05 pm
BHD
-
IAD
27h 45m
1 stop
$669Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Delta Logo
12:24 pm - 4:50 pm
IAD
-
BHD
23h 26m
2 stops
Delta Logo
6:30 am - 5:05 pm
BHD
-
IAD
14h 35m
1 stop
$673Delta
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 - 5:05 pm
BHD
-
IAD
14h 35m
1 stop
$675Delta
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 - 10:59 pm
BHD
-
IAD
20h 29m
2 stops
$683Delta
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 - 12:27 am
BHD
-
IAD
21h 57m
2 stops
$685Delta
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
8:30 pm - 4:00 pm
IAD
-
BHD
14h 30m
2 stops
Multiple Airlines Logo
7:00 am - 7:20 pm
BHD
-
IAD
17h 20m
2 stops
$695Multiple Airlines
Tue, Apr 7 - Wed, Apr 15
Scandinavian Airlines Logo
7:05 pm - 4:40 pm
IAD
-
BHD
17h 35m
1 stop
Scandinavian Airlines Logo
5:20 pm - 7:19 pm
BHD
-
IAD
29h 59m
2 stops
$732Scandinavian Airlines
Thu, Mar 19 - Thu, Mar 26

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Belfast City Airport flight tickets
Delta
Mar 5
IAD12:24 pmWashington, D.C. Dulles Intl
23h 26m
2 stops
BHD4:50 pmBelfast City
Mar 12
BHD6:30 amBelfast City
14h 35m
1 stop
IAD5:05 pmWashington, D.C. Dulles Intl
$673
Delta
Mar 5
IAD12:24 pmWashington, D.C. Dulles Intl
23h 26m
2 stops
BHD4:50 pmBelfast City
Mar 12
BHD6:30 amBelfast City
14h 35m
1 stop
IAD5:05 pmWashington, D.C. Dulles Intl
$675
Delta
Mar 5
IAD12:24 pmWashington, D.C. Dulles Intl
23h 26m
2 stops
BHD4:50 pmBelfast City
Mar 12
BHD6:30 amBelfast City
21h 57m
2 stops
IAD12:27 amWashington, D.C. Dulles Intl
$683

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
Mar 24
IAD7:20 pmWashington, D.C. Dulles Intl
11h 10m
1 stop
BHD10:30 amBelfast City
Mar 31
BHD8:25 pmBelfast City
26h 00m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$647
British Airways
Apr 7
IAD5:40 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
BHD9:00 amBelfast City
Apr 15
BHD8:35 pmBelfast City
24h 15m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$658
British Airways
Mar 19
IAD10:45 pmWashington, D.C. Dulles Intl
13h 55m
1 stop
BHD4:40 pmBelfast City
Mar 26
BHD10:40 amBelfast City
14h 15m
1 stop
IAD8:55 pmWashington, D.C. Dulles Intl
$667

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 February 23, 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

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 3/24

7:20 pm-10:30 am

1 stop11h 10m

Belfast City

Tue 3/31

8:25 pm-5:25 pm

1 stop26h 00m

$647

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 4/7

5:40 pm-9:00 am

1 stop10h 20m

Belfast City

Wed 4/15

8:35 pm-3:50 pm

1 stop24h 15m

$658

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/19

10:45 pm-4:40 pm

1 stop13h 55m

Belfast City

Thu 3/26

10:40 am-8:55 pm

1 stop14h 15m

$667

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/19

7:05 pm-4:40 pm

1 stop17h 35m

Belfast City

Thu 3/26

5:20 pm-5:05 pm

1 stop27h 45m

$669

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-5:05 pm

1 stop14h 35m

$673

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-5:05 pm

1 stop14h 35m

$675

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-10:59 pm

2 stops20h 29m

$683

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-12:27 am

2 stops21h 57m

$685

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 4/7

8:30 pm-4:00 pm

2 stops14h 30m

Belfast City

Wed 4/15

7:00 am-7:20 pm

2 stops17h 20m

$695

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/19

7:05 pm-4:40 pm

1 stop17h 35m

Belfast City

Thu 3/26

5:20 pm-7:19 pm

2 stops29h 59m

$732

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. 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 20m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Belfast City Airport takes 10h 20m
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.
Search flight deals

  • 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 20m.

  • 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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