$688+ Cheap flights from Northern Ireland to Dulles Intl (IAD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Northern Ireland to Dulles Intl 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 Northern Ireland to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Northern Ireland (GBNIR) to Dulles Intl (IAD). 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 January 16, 2025.
Round-trip from | $688 (TravelUp) |
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Find flight deals from Northern Ireland to Dulles Intl
Cheapest flights from Northern Ireland to Dulles IntlExplore the most affordable flight options available from Northern Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.
Explore the most affordable flight options available from Northern Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.
This TravelUp deal was found by Cheapflights users on 1/15. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Virgin Atlantic deal was found by Cheapflights users on 1/14. 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.
This Delta deal was found by Cheapflights users on 1/16. 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.
This Trip.com deal was found by Cheapflights users on 1/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/15. 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.
This Finnair deal was found by Cheapflights users on 1/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This British Airways deal was found by Cheapflights users on 1/16. 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.
This American Airlines deal was found by Cheapflights users on 1/16. 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.
Find flights from Northern Ireland to Dulles Intl within your budget
Customize your flight search to find flights from Northern Ireland to Dulles Intl 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 January 16, 2025.
Fly from
Fly to
Route
Depart
Return
Price
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Mon 2/3
6:30 am-3:45 pm
1 stop14h 15m
Washington, D.C. Dulles Intl
Mon 2/10
5:35 pm-4:50 pm
1 stop18h 15m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Mon 2/3
6:30 am-3:45 pm
1 stop14h 15m
Washington, D.C. Dulles Intl
Mon 2/10
12:29 pm-4:50 pm
2 stops23h 21m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Mon 2/3
6:30 am-6:56 pm
2 stops17h 26m
Washington, D.C. Dulles Intl
Mon 2/10
12:05 pm-4:50 pm
2 stops23h 45m
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Mon 2/3
8:15 am-6:25 pm
2 stops15h 10m
Washington, D.C. Dulles Intl
Mon 2/10
7:40 pm-5:00 pm
2 stops16h 20m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Mon 2/3
5:20 pm-6:25 pm
3 stops30h 05m
Washington, D.C. Dulles Intl
Mon 2/10
7:40 pm-9:00 pm
3 stops20h 20m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Sat 5/10
7:05 am-8:15 pm
1 stop18h 10m
Washington, D.C. Dulles Intl
Sat 5/17
10:45 pm-3:05 pm
1 stop11h 20m
Best time to book a flight from Northern Ireland to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Northern Ireland with our price prediction graph.
Travel insights for flights from Northern Ireland to Dulles Intl
Get recent, data-driven insights about flights from Northern Ireland to Dulles Intl including ideal travel times, pricing trends, and more.
Rainfall in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.
Temperature in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated January 16, 2025.
Get a feel of what it's like to fly with British Airways and KLM from Northern Ireland to Washington, D.C. by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception