Cheap flights from Washington, D.C. Dulles Intl Airport to Northern Ireland from $250

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 Northern Ireland departing on 2/24. 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 Northern Ireland

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
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
7:40 pm - 8:10 pm
IAD
-
BFS
19h 30m2 stops
Multiple Airlines Logo
6:30 am - 6:30 pm
BFS
-
IAD
17h 00m2 stops
$621Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
7:40 pm - 4:00 pm
IAD
-
BFS
15h 20m2 stops
Multiple Airlines Logo
6:30 am - 6:30 pm
BFS
-
IAD
17h 00m2 stops
$635Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
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
Fri, Apr 24 - Mon, Apr 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
Wed, Mar 4 - Sun, Mar 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
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
7:40 pm - 8:50 pm
IAD
-
BFS
20h 10m2 stops
Multiple Airlines Logo
6:25 pm - 9:00 pm
BFS
-
IAD
31h 35m3 stops
$674Multiple Airlines
Wed, Jan 28 - Tue, Feb 3
Multiple Airlines Logo
7:40 pm - 7:55 pm
IAD
-
BFS
19h 15m2 stops
Multiple Airlines Logo
6:25 pm - 9:00 pm
BFS
-
IAD
31h 35m3 stops
$675Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
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
Thu, Mar 5 - Thu, Mar 12
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
Fri, Apr 24 - Mon, Apr 27

British Airways flights from Washington, D.C. Dulles Intl Airport to Northern Ireland

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Northern Ireland 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
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
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

Delta flights from Washington, D.C. Dulles Intl Airport to Northern Ireland

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Northern Ireland 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
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
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

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Northern Ireland 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 December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Northern Ireland 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

Thu 3/5

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

Thu 3/12

6:35 am-4:35 pm

1 stop14h 00m

$619

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 2/2

7:40 pm-8:10 pm

2 stops19h 30m

Belfast Intl

Mon 2/9

6:30 am-6:30 pm

2 stops17h 00m

$621

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 2/3

7:40 pm-4:00 pm

2 stops15h 20m

Belfast Intl

Tue 2/10

6:30 am-6:30 pm

2 stops17h 00m

$635

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 4/24

10:25 pm-6:15 pm

1 stop14h 50m

Belfast City

Mon 4/27

6:40 am-3:50 pm

1 stop14h 10m

$636

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Sun 3/8

8:25 pm-8:55 pm

1 stop28h 30m

$644

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

$671

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 1/28

7:40 pm-8:50 pm

2 stops20h 10m

Belfast Intl

Tue 2/3

6:25 pm-9:00 pm

3 stops31h 35m

$674

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 1/27

7:40 pm-7:55 pm

2 stops19h 15m

Belfast Intl

Tue 2/3

6:25 pm-9:00 pm

3 stops31h 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-11:41 pm

2 stops21h 11m

$681

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 4/24

5:40 pm-4:55 pm

1 stop18h 15m

Belfast City

Mon 4/27

9:50 am-8:46 pm

2 stops15h 56m

$805

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Northern Ireland

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 Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Tuesday when prices can be found for as low as $758. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Northern Ireland for around $845.

What is the cheapest time of day to depart on your flight to Northern Ireland?

In the afternoon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Northern Ireland when you can find flight prices for as low as $767. Flying to Northern Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $800.

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

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Northern Ireland flight.

Cheap Washington, D.C. Dulles Intl Airport to Northern Ireland flight deals and tips

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

Fastest flight time

9h 50m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Northern Ireland takes 9h 50m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Northern Ireland. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Northern Ireland.
  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Northern Ireland?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Northern Ireland are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Northern Ireland?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

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

Best airlines flying from Washington, D.C. Dulles Intl Airport to Northern Ireland

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

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Northern Ireland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Northern Ireland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Northern Ireland with flexible booking policies on momondo?

Flights from Washington, D.C. to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Northern Ireland 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 Northern Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Northern Ireland 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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1 adult
Thu 1/22
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