HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Northern Ireland

$399+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BFS
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Northern Ireland with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Northern Ireland

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Northern Ireland (GBNIR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

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 November 21, 2024.

This American Airlines deal was found by Cheapflights users on 11/20. 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.
Fri 11/229:55 pmIAD - BHD
1 stop14h 20mAmerican Airlines
Mon 11/256:35 amBHD - IAD
1 stop14h 00mAmerican Airlines
Deal found 11/20$744
This Orbitz deal was found by Cheapflights users on 11/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:10 pmIAD - BHD
2 stops16h 25mAer Lingus
Wed 1/87:25 pmBHD - IAD
2 stops25h 15mAer Lingus
Deal found 11/20$839
This StudentUniverse deal was found by Cheapflights users on 11/20. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:00 pmIAD - BHD
1 stop11h 20mBritish Airways
Wed 1/87:25 pmBHD - IAD
2 stops25h 15mBritish Airways
Deal found 11/20$867
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/292:35 pmIAD - BFS
2 stops17h 15mMultiple Airlines
Wed 1/88:55 pmBFS - IAD
3 stops26h 30mMultiple Airlines
Deal found 11/20$954
This KLM deal was found by Cheapflights users on 11/20. 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.
Sun 12/295:35 pmIAD - BHD
1 stop22h 25mKLM
Wed 1/85:20 pmBHD - IAD
1 stop27h 25mKLM
Deal found 11/20$1,011
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/2910:35 amIAD - BHD
3 stops26h 50mMultiple Airlines
Wed 1/87:25 amBHD - IAD
2 stops16h 00mMultiple Airlines
Deal found 11/20$1,180

Find flights from Dulles Intl to Northern Ireland within your budget

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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

9:55 pm-2:00 pm

1 stop11h 05m

Belfast City

Mon 1/13

11:30 am-7:45 pm

1 stop13h 15m

$630

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 2/14

6:00 pm-10:30 am

1 stop11h 30m

Belfast City

Sat 2/22

9:10 am-3:35 pm

1 stop11h 25m

$632

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

5:35 pm-4:50 pm

1 stop18h 15m

Belfast City

Mon 1/13

6:30 am-11:16 pm

2 stops21h 46m

$676

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 3/15

6:10 pm-2:15 pm

2 stops16h 05m

Belfast City

Sat 3/22

3:05 pm-8:15 pm

2 stops33h 10m

$814

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 5/16

6:50 pm-8:45 pm

2 stops20h 55m

Belfast City

Fri 5/23

8:20 am-5:40 pm

2 stops14h 20m

$821

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 12/29

2:35 pm-12:50 pm

2 stops17h 15m

Belfast Intl

Wed 1/8

8:55 pm-6:25 pm

3 stops26h 30m

$954

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 5/16

5:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Fri 5/23

6:30 am-6:22 pm

2 stops16h 52m

$962

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 1/20

4:58 pm-4:50 pm

2 stops18h 52m

Belfast City

Sat 1/25

6:30 am-12:18 am

2 stops22h 48m

$1,013

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 12/11

9:55 pm-8:15 pm

1 stop17h 20m

$399

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 12/11

11:40 am-4:50 pm

2 stops24h 10m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 11 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.

Travel insights for flights from Dulles Intl to Northern Ireland

Get recent, data-driven insights about flights from Dulles Intl to Northern Ireland including ideal travel times, pricing trends, and more.

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 November 21, 2024.
Delta
8.0
Very good
8,758 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,758 reviews
Delta
8.0
Very good
8,758 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,758 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,758 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,758 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus
7.1
Good
1,089 reviews
Delta
8.0
Very good
8,758 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    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.

  • 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 $641). Flying from Washington, D.C. Dulles Intl Airport to Northern Ireland in June is currently the most expensive (average of $1,183). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Baltimore to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
Reagan-National to Gatwick flights
Baltimore to Stansted flights
Dulles Intl to Stansted flights
Dulles Intl to Luton flights
Baltimore to Luton flights
Reagan-National to London City flights
Dulles Intl to Edinburgh flights
Baltimore to Edinburgh flights
Dulles Intl to Manchester flights
Reagan-National to Edinburgh flights
Baltimore to Manchester flights
Reagan-National to Manchester flights
Baltimore to London City flights
Dulles Intl to Glasgow Intl flights
Baltimore to Glasgow Intl flights
Reagan-National to Glasgow Intl flights
Dulles Intl to Birmingham flights
Reagan-National to Birmingham flights
Baltimore to Birmingham flights
Dulles Intl to Southampton flights
Dulles Intl to Inverness flights
Baltimore to Inverness flights
Reagan-National to Inverness flights
Dulles Intl to Aberdeen flights
Dulles Intl to Belfast Intl flights
Baltimore to Aberdeen flights
Dulles Intl to Belfast City flights
Dulles Intl to Liverpool flights
Dulles Intl to Leeds flights
Baltimore to Southampton flights
Reagan-National to Belfast Intl flights
Dulles Intl to Bristol flights
Dulles Intl to Newcastle upon Tyne flights
Reagan-National to Belfast City flights
Reagan-National to Luton flights
Reagan-National to Leeds flights
Baltimore to Leeds flights
Baltimore to Liverpool flights
Baltimore to Belfast Intl flights
Reagan-National to Aberdeen flights
Baltimore to Bristol flights
Reagan-National to Bristol flights
Baltimore to Belfast City flights
Baltimore to Newcastle upon Tyne flights

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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$557Average$804FlexibilityNo cancel feeOn-time70%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines