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Northern Ireland

$326+ Cheap flights from Dulles Intl (IAD) to Northern Ireland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BFS
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
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Find flight deals from Dulles Intl to Northern Ireland

Cheapest flights from Dulles Intl to Northern Ireland
Explore the most affordable flight options available from Dulles Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2025.

This Mytrip deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/307:40 pmIAD - BFS
2 stops18h 15mMultiple Airlines
Fri 12/57:05 amBFS - IAD
2 stops16h 25mMultiple Airlines
Deal found 10/7$635
This Virgin Atlantic deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:05 pmIAD - BHD
1 stop21h 55mVirgin Atlantic
Sun 11/166:30 amBHD - IAD
1 stop14h 35mVirgin Atlantic
Deal found 10/7$657
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:05 pmIAD - BHD
1 stop17h 45mDelta
Sat 1/105:20 pmBHD - IAD
2 stops30h 52mDelta
Deal found 10/9$669
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:11 pmIAD - BHD
2 stops27h 49mDelta
Sun 11/165:20 pmBHD - IAD
2 stops28h 03mDelta
Deal found 10/9$671
This British Airways deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 pmIAD - BHD
1 stop11h 00mBritish Airways
Fri 1/96:45 amBHD - IAD
1 stop13h 50mBritish Airways
Deal found 10/9$676
This Air France deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:05 pmIAD - BHD
1 stop17h 45mMultiple Airlines
Wed 1/75:20 pmBHD - IAD
1 stop27h 45mMultiple Airlines
Deal found 10/9$697
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:29 pmIAD - BHD
2 stops18h 21mDelta
Wed 1/75:20 pmBHD - IAD
1 stop27h 45mDelta
Deal found 10/9$701
This Air France deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:05 pmIAD - BHD
1 stop17h 45mMultiple Airlines
Tue 1/65:20 pmBHD - IAD
2 stops28h 10mMultiple Airlines
Deal found 10/9$707
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:05 pmIAD - BHD
1 stop21h 55mDelta
Sat 1/105:20 pmBHD - IAD
2 stops30h 52mDelta
Deal found 10/9$709
This Mytrip deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/279:45 amIAD - BFS
3 stops30h 30mMultiple Airlines
Sat 11/110:25 pmBFS - IAD
2 stops23h 15mMultiple Airlines
Deal found 10/7$762
This Mytrip deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:30 pmIAD - BFS
3 stops25h 15mMultiple Airlines
Thu 11/2712:10 pmBFS - IAD
2 stops32h 25mMultiple Airlines
Deal found 10/7$876
This Mytrip deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:30 pmIAD - BFS
2 stops27h 55mMultiple Airlines
Sun 11/307:55 amBFS - IAD
2 stops32h 50mMultiple Airlines
Deal found 10/9$891

Cheap flight deals from Dulles Intl to Northern Ireland

Keep the following information in mind while searching for Dulles Intl to Northern Ireland flight deals. Data was last updated October 10, 2025.

Round-trip from

$635
(Mytrip)

One-way from

$326
(Kiwi.com)

Popular in

June

Cheapest in

February
From Washington, D.C. Dulles Intl to Northern Ireland
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Northern Ireland
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated October 10, 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

Dulles Intl

Fly to

Northern Ireland

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

Wed 3/11

6:35 am-4:35 pm

1 stop14h 00m

$641

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 3/6

6:20 pm-10:30 am

1 stop11h 10m

Belfast City

Thu 3/12

10:40 am-8:55 pm

1 stop14h 15m

$641

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-8:55 pm

1 stop18h 20m

$641

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

6:05 pm-9:00 pm

1 stop21h 55m

Belfast City

Sun 11/16

6:30 am-4:05 pm

1 stop14h 35m

$657

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 4/3

5:50 pm-8:50 am

1 stop10h 00m

Belfast City

Wed 4/8

6:15 pm-5:35 pm

1 stop28h 20m

$661

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

6:05 pm-9:00 pm

1 stop21h 55m

Belfast City

Thu 3/12

6:30 am-5:05 pm

1 stop14h 35m

$667

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 10/27

9:45 am-8:15 pm

3 stops30h 30m

Belfast Intl

Sat 11/1

10:25 pm-5:40 pm

2 stops23h 15m

$762

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 3/5

5:30 pm-8:40 pm

3 stops22h 10m

Belfast Intl

Thu 3/12

4:50 pm-10:00 pm

3 stops33h 10m

$799

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 11/20

5:30 pm-11:45 pm

3 stops25h 15m

Belfast Intl

Thu 11/27

8:05 pm-5:00 am

3 stops37h 55m

$878

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 11/23

10:30 pm-6:55 pm

2 stops15h 25m

Belfast Intl

Sun 11/30

7:30 am-3:35 pm

3 stops37h 05m

$1,073

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

Showing 1-10 of 13 results
1
2

Best time to book a flight from Dulles Intl to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Northern Ireland
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated October 10, 2025.
Read reviews from past customers who have flown British Airways from Washington, D.C. Dulles Intl Airport to Northern Ireland. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,446 reviews

Overall

6.7

Comfort

6.7

Entertainment

6.4

Food

6.3

Boarding

6.9

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,446 reviews
British Airways
6.7
Okay
7,446 reviews

Overall

6.7

Comfort

6.7

Entertainment

6.4

Food

6.3

Boarding

6.9

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Northern Ireland?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Northern Ireland in 11h. Fly via British Airways or Virgin Atlantic to get the fastest option. Airlines will cover a distance of 3390 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Northern Ireland?

    Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Dulles Intl - Belfast City or Washington, D.C. Dulles Intl - Campbeltown Machrihanish when deciding on the best route from Washington, D.C. Dulles Intl Airport to Northern Ireland.

  • Can I find deals for flights from Dulles Intl to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Northern Ireland.

  • Can I find deals for business class flights from Dulles Intl to Northern Ireland?

    Yes. Cheapflights offers flight deals from Dulles Intl to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Dulles Intl to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dulles Intl to Northern Ireland

Discover the top airline that operate flights from Dulles Intl to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$854FlexibilityNo cancel feeOn-time70%

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