Cheap flights from Northern Ireland to Washington, D.C. Dulles Intl Airport from £682
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
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 21 February 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 21 February 2025.
Find flights from Northern Ireland to Dulles Intl within your budget
Customise 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 858,174 searches. Data last updated 21 February 2025.
Fly from
Fly to
Route
Depart
Return
Price
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Sun 6/4
21:00-19:05
3 stops27h 05m
Washington, D.C. Dulles Intl
Sun 13/4
20:45-22:25
3 stops20h 40m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Fri 11/4
06:35-15:50
1 stop14h 15m
Washington, D.C. Dulles Intl
Sun 20/4
22:40-18:45
1 stop15h 05m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Fri 11/4
16:55-15:50
2 stops27h 55m
Washington, D.C. Dulles Intl
Sun 20/4
17:20-14:30
2 stops16h 10m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Fri 11/4
06:30-15:35
1 stop14h 05m
Washington, D.C. Dulles Intl
Sun 20/4
20:33-21:15
2 stops19h 42m
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.
What is the cheapest time of day to fly from NIR to IAD?
Find hourly flight availability from Northern Ireland to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.
When flying from Northern Ireland to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.
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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).
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 21 February 2025.
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Northern Ireland to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Northern Ireland to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Northern Ireland to Dulles Intl
Discover the top airline that operate flights from Northern Ireland to Dulles Intl. 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 858,174 searches. Data last updated 21 February 2025.
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How does Cheapflights help users find flights from Northern Ireland to Dulles Intl?
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Can Cheapflights find flights from Northern Ireland to Dulles Intl with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Dulles Intl flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Northern Ireland to Dulles Intl become cheaper?
Yes, Cheapflights offers price alerts on Northern Ireland to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.