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Cheap flights from Washington, D.C. Dulles Intl Airport to Belfast from $619

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. Dulles Intl Airport to Belfast departing on 3/5. 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
6:20 pm - 10:20 am
IAD
-
BHD
11h 00m1 stop
British Airways Logo
6:35 am - 4:35 pm
BHD
-
IAD
14h 00m1 stop
$619British Airways
jeu., mars 5 - jeu., mars 12
British Airways Logo
10:25 pm - 6:15 pm
IAD
-
BHD
14h 50m1 stop
British Airways Logo
6:40 am - 3:50 pm
BHD
-
IAD
14h 10m1 stop
$636British Airways
ven., avr. 24 - lun., avr. 27
British Airways Logo
9:45 pm - 2:15 pm
IAD
-
BHD
11h 30m1 stop
British Airways Logo
8:25 pm - 8:55 pm
BHD
-
IAD
28h 30m1 stop
$644British Airways
mer., mars 4 - dim., mars 8
Delta Logo
12:24 pm - 4:50 pm
IAD
-
BHD
23h 26m2 stops
Delta Logo
6:30 am - 5:05 pm
BHD
-
IAD
14h 35m1 stop
$671Delta
jeu., mars 5 - jeu., mars 12
Delta Logo
12:24 pm - 4:50 pm
IAD
-
BHD
23h 26m2 stops
Delta Logo
6:30 am - 11:41 pm
BHD
-
IAD
21h 11m2 stops
$681Delta
jeu., mars 5 - jeu., mars 12
Delta Logo
1:19 pm - 4:50 pm
IAD
-
BHD
23h 31m2 stops
Delta Logo
6:30 am - 10:59 pm
BHD
-
IAD
20h 29m2 stops
$746Delta
lun., mars 9 - dim., mars 15
KLM Logo
5:40 pm - 4:55 pm
IAD
-
BHD
18h 15m1 stop
KLM Logo
9:50 am - 8:46 pm
BHD
-
IAD
15h 56m2 stops
$805KLM
ven., avr. 24 - lun., avr. 27
British Airways Logo
4:46 pm - 11:10 am
IAD
-
BHD
14h 24m2 stops
British Airways Logo
9:15 am - 4:35 pm
BHD
-
IAD
11h 20m1 stop
$829British Airways
sam., mars 14 - sam., mars 21
Delta Logo
1:19 pm - 4:50 pm
IAD
-
BHD
23h 31m2 stops
Delta Logo
6:30 am - 10:59 pm
BHD
-
IAD
20h 29m2 stops
$848Delta
mar., mars 10 - lun., mars 23
British Airways Logo
6:20 pm - 10:15 am
IAD
-
BHD
10h 55m1 stop
British Airways Logo
8:20 am - 8:55 pm
BHD
-
IAD
16h 35m2 stops
$870British Airways
mer., mars 4 - dim., mars 8

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 5
IAD6:20 pmWashington, D.C. Dulles Intl
11h 00m
1 stop
BHD10:20 amBelfast City
Mar 12
BHD11:05 amBelfast City
13h 50m
1 stop
IAD8:55 pmWashington, D.C. Dulles Intl
$619
Find similar
British Airways
Apr 24
IAD10:25 pmWashington, D.C. Dulles Intl
14h 50m
1 stop
BHD6:15 pmBelfast City
Apr 27
BHD6:40 amBelfast City
14h 10m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$636
Find similar
British Airways
Mar 4
IAD9:45 pmWashington, D.C. Dulles Intl
11h 30m
1 stop
BHD2:15 pmBelfast City
Mar 8
BHD8:25 pmBelfast City
28h 30m
1 stop
IAD8:55 pmWashington, D.C. Dulles Intl
$644
Find similar

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
$671
Find similar
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 11m
2 stops
IAD11:41 pmWashington, D.C. Dulles Intl
$681
Find similar
Delta
Mar 9
IAD1:19 pmWashington, D.C. Dulles Intl
23h 31m
2 stops
BHD4:50 pmBelfast City
Mar 15
BHD6:30 amBelfast City
20h 29m
2 stops
IAD10:59 pmWashington, D.C. Dulles Intl
$746
Find similar

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 décembre 23, 2025.
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

jeu. 3/5

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

jeu. 3/12

6:35 am-4:35 pm

1 stop14h 00m

$619

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

ven. 4/24

10:25 pm-6:15 pm

1 stop14h 50m

Belfast City

lun. 4/27

6:40 am-3:50 pm

1 stop14h 10m

$636

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mer. 3/4

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

dim. 3/8

8:25 pm-8:55 pm

1 stop28h 30m

$644

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jeu. 3/5

12:24 pm-4:50 pm

2 stops23h 26m

Belfast City

jeu. 3/12

6:30 am-5:05 pm

1 stop14h 35m

$671

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jeu. 3/5

12:24 pm-4:50 pm

2 stops23h 26m

Belfast City

jeu. 3/12

6:30 am-11:41 pm

2 stops21h 11m

$681

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 3/9

1:19 pm-4:50 pm

2 stops23h 31m

Belfast City

dim. 3/15

6:30 am-10:59 pm

2 stops20h 29m

$746

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

ven. 4/24

5:40 pm-4:55 pm

1 stop18h 15m

Belfast City

lun. 4/27

9:50 am-8:46 pm

2 stops15h 56m

$805

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

sam. 3/14

4:46 pm-11:10 am

2 stops14h 24m

Belfast City

sam. 3/21

9:15 am-4:35 pm

1 stop11h 20m

$829

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 3/10

1:19 pm-4:50 pm

2 stops23h 31m

Belfast City

lun. 3/23

6:30 am-10:59 pm

2 stops20h 29m

$848

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mer. 3/4

6:20 pm-10:15 am

1 stop10h 55m

Belfast City

dim. 3/8

8:20 am-8:55 pm

2 stops16h 35m

$870

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. 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

What is the cheapest day to depart on your flight to Belfast City Airport?

On average, the least expensive day to fly to Belfast City Airport from Washington, D.C. Dulles Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $626. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $873.

What is the cheapest time of day to depart on your flight to Belfast City Airport?

According to our data, the cheapest time of day to fly to Belfast City Airport is in the afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Belfast City Airport in the afternoon for as low as $708. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $779.

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

You could potentially save up to 14% 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

9h 50m

Direct flights

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

  • 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 many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport?

  • 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.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Belfast City Airport?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Belfast City Airport

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Belfast City Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $620Free CancellationRating
6.7
7,605 reviews
Search British Airways flights

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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