Cheap flights from Washington, D.C. Dulles Intl Airport to Northern Ireland from £387
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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
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 29 March 2025.
Round-trip from | £511 |
---|---|
One-way from | £387 |
Popular in | June |
Cheapest in | January |
Average price | £755 |
Find flight deals from Dulles Intl to Northern Ireland
Cheapest flights from Dulles Intl to Northern IrelandExplore 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 29 March 2025.
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 29 March 2025.
Cheapflights Fare Finder
Customise 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 858,174 searches. Data last updated 29 March 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
Mon 22/9
22:40-17:30
1 stop13h 50m
Belfast City
Mon 6/10
13:50-20:15
1 stop11h 25m
Washington, D.C.Belfast
IAD - BFS
IADBFS
Washington, D.C. Dulles Intl
Mon 12/5
20:30-22:40
2 stops21h 10m
Belfast Intl
Mon 19/5
12:35-20:50
3 stops37h 15m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Sun 13/4
20:21-21:15
2 stops19h 54m
Belfast City
Sun 27/4
06:30-23:07
2 stops21h 37m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Wed 30/7
17:39-11:55
2 stops13h 16m
Belfast City
Sat 16/8
07:05-17:35
1 stop15h 30m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Mon 22/9
17:20-12:50
2 stops14h 30m
Belfast City
Mon 6/10
06:50-18:55
2 stops17h 05m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Sun 13/4
17:25-16:55
1 stop18h 30m
Belfast City
Sat 19/4
17:25-15:35
1 stop27h 10m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Fri 29/8
11:35-20:10
2 stops27h 35m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Sat 30/8
19:25-12:15
1 stop11h 50m
Washington, D.C.Belfast
IAD - BFS
IADBFS
Washington, D.C. Dulles Intl
Sat 30/8
19:25-22:25
1 stop22h 00m
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.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Northern Ireland
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 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.
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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).
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 29 March 2025.
Boarding
Crew
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Crew
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Crew
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Crew
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Crew
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Crew
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
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.
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.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Dulles Intl to Northern Ireland?
Cheapflights makes it easy to find Dulles Intl to Northern Ireland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Northern Ireland?
Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Dulles Intl to Northern Ireland with no change fees?
Yes! Cheapflights helps users easily find flights from Dulles Intl to Northern Ireland with no change fees.
Can Cheapflights notify me if prices for flights from Dulles Intl to Northern Ireland become cheaper?
Not ready to book yet? You can track prices for flights from Dulles Intl to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.