Northern Ireland

$461+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BFS
jun. 17 — jun. 241
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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 junio 12, 2025.

Round-trip from

$630
(American Airlines)

One-way from

$461
(Cheapflightsfares)

Popular in

June

Cheapest in

August

Average price

$1,232
From Washington, D.C. Dulles Intl to Northern Ireland
One-way flight from Washington, D.C. Dulles Intl to Northern Ireland
Highest demand for flights based on searches. 22% potential increase in price ($219 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($43 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/65:50 pmIAD - BHD
1 stop11h 20mAmerican Airlines
sáb. 12/206:30 amBHD - IAD
1 stop14h 05mAmerican Airlines
Deal found 6/12$630
This Ovago deal was found by Cheapflights users on 6/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/55:50 pmIAD - BHD
1 stop10h 00mBritish Airways
lun. 9/87:30 pmBHD - IAD
2 stops24h 30mBritish Airways
Deal found 6/10$643
This Bravofly deal was found by Cheapflights users on 6/12. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/48:31 pmIAD - BHD
2 stops15h 24mMultiple Airlines
mié. 8/205:25 pmBHD - IAD
2 stops23h 37mMultiple Airlines
Deal found 6/12$707
This Delta deal was found by Cheapflights users on 6/10. 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.
vie. 9/58:23 pmIAD - BHD
2 stops15h 32mDelta
lun. 9/86:30 amBHD - IAD
2 stops18h 13mDelta
Deal found 6/10$721
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/18:31 pmIAD - BHD
2 stops15h 24mKLM
jue. 8/76:30 amBHD - IAD
1 stop14h 05mKLM
Deal found 6/10$754
This Mytrip deal was found by Cheapflights users on 6/9. 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.
vie. 10/36:10 pmIAD - BFS
2 stops22h 00mMultiple Airlines
dom. 10/128:40 amBFS - IAD
2 stops33h 50mMultiple Airlines
Deal found 6/9$795
This SmartFares deal was found by Cheapflights users on 6/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2810:00 pmIAD - BHD
2 stops14h 25mAer Lingus
sáb. 11/16:00 pmBHD - IAD
2 stops26h 35mAer Lingus
Deal found 6/12$970
This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/95:20 pmIAD - CAL
2 stops34h 25mMultiple Airlines
mié. 7/165:35 pmCAL - IAD
2 stops30h 20mMultiple Airlines
Deal found 6/11$1,310

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 junio 12, 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

sáb. 9/6

5:50 pm-10:10 am

1 stop11h 20m

Belfast City

sáb. 12/20

6:30 am-3:35 pm

1 stop14h 05m

$630

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 9/5

5:50 pm-8:50 am

1 stop10h 00m

Belfast City

lun. 9/8

7:30 pm-3:00 pm

2 stops24h 30m

$643

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 8/4

8:31 pm-4:55 pm

2 stops15h 24m

Belfast City

mié. 8/20

5:25 pm-12:02 pm

2 stops23h 37m

$707

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 9/5

8:23 pm-4:55 pm

2 stops15h 32m

Belfast City

lun. 9/8

6:30 am-7:43 pm

2 stops18h 13m

$721

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 8/1

8:31 pm-4:55 pm

2 stops15h 24m

Belfast City

jue. 8/7

6:30 am-3:35 pm

1 stop14h 05m

$754

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

vie. 10/3

6:10 pm-9:10 pm

2 stops22h 00m

Belfast Intl

dom. 10/12

8:40 am-1:30 pm

2 stops33h 50m

$795

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 10/28

10:00 pm-4:25 pm

2 stops14h 25m

Belfast City

sáb. 11/1

6:00 pm-4:35 pm

2 stops26h 35m

$970

Washington, D.C.Campbeltown

IAD - CAL

IADCAL

Washington, D.C. Dulles Intl

mié. 7/9

5:20 pm-8:45 am

2 stops34h 25m

Campbeltown Machrihanish

mié. 7/16

5:35 pm-6:55 pm

2 stops30h 20m

$1,310

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 7/7

5:50 pm-8:50 am

1 stop10h 00m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland (average of $657). Flying from Washington, D.C. Dulles Intl Airport to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 junio 12, 2025.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.
  • What are the most popular routes 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.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland (average of $657). Flying from Washington, D.C. Dulles Intl Airport to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$575Average$844FlexibilityNo cancel feeOn-time70%

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