$254+ Cheap flights from Dulles Intl (IAD) to 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Dulles Intl to 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 Ireland
Keep the following information in mind while searching for Dulles Intl to Ireland flight deals. Data was last updated January 15, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $433 (Delta) |
One-way from | $254 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $544 |
Good round-trip deal | $686 or less |
Good one-way deal | $418 or less |
Find flight deals from Dulles Intl to Ireland
Cheapest flights from Dulles Intl to IrelandExplore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.
Explore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.
This Delta deal was found by Cheapflights users on 1/13. 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 Air France 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 Air France 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 1/13. 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 Justfly.com deal was found by Cheapflights users on 1/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Iberia deal was found by Cheapflights users on 1/13. 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 Iberia 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 1/12. 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 Delta 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 1/13. 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 Delta deal was found by Cheapflights users on 1/13. 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 Iberia deal was found by Cheapflights users on 1/13. 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 Iberia 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 1/13. 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 Delta deal was found by Cheapflights users on 1/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air France deal was found by Cheapflights users on 1/13. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Cork
IAD - ORK
IADORK
Washington, D.C. Dulles Intl
Tue 4/14
6:15 pm-2:40 pm
1 stop15h 25m
Cork
Mon 4/27
10:50 am-3:35 pm
1 stop33h 45m
Washington, D.C.Cork
IAD - ORK
IADORK
Washington, D.C. Dulles Intl
Tue 4/14
6:15 pm-2:40 pm
1 stop15h 25m
Cork
Wed 4/29
6:00 am-3:35 pm
1 stop14h 35m
Washington, D.C.Cork
IAD - ORK
IADORK
Washington, D.C. Dulles Intl
Tue 4/14
6:15 pm-2:40 pm
1 stop15h 25m
Cork
Tue 4/28
6:00 am-3:35 pm
1 stop14h 35m
Washington, D.C.Cork
IAD - ORK
IADORK
Washington, D.C. Dulles Intl
Tue 4/14
9:45 pm-2:40 pm
1 stop11h 55m
Cork
Thu 4/30
6:00 am-3:35 pm
1 stop14h 35m
Washington, D.C.Cork
IAD - ORK
IADORK
Washington, D.C. Dulles Intl
Wed 3/4
6:50 pm-3:00 pm
1 stop15h 10m
Cork
Wed 3/11
5:15 pm-5:05 pm
1 stop27h 50m
Washington, D.C.Cork
IAD - ORK
IADORK
Washington, D.C. Dulles Intl
Wed 3/4
6:50 pm-3:00 pm
1 stop15h 10m
Cork
Wed 3/11
6:15 am-7:19 pm
2 stops17h 04m
Washington, D.C.Shannon
IAD - SNN
IADSNN
Washington, D.C. Dulles Intl
Mon 3/16
4:46 pm-11:30 am
2 stops14h 44m
Shannon
Mon 3/23
8:05 pm-4:35 pm
2 stops24h 30m
Washington, D.C.Dublin
IAD - DUB
IADDUB
Washington, D.C. Dulles Intl
Thu 4/30
12:12 pm-7:55 am
1 stop14h 43m
Dublin
Thu 5/7
11:00 am-9:16 pm
1 stop15h 16m
Washington, D.C.Dublin
IAD - DUB
IADDUB
Washington, D.C. Dulles Intl
Sun 4/5
10:06 am-8:45 am
1 stop17h 39m
Dublin
Sun 4/12
10:00 am-11:41 pm
1 stop18h 41m
Washington, D.C.Shannon
IAD - SNN
IADSNN
Washington, D.C. Dulles Intl
Tue 4/7
7:26 pm-4:10 pm
2 stops15h 44m
Shannon
Tue 4/14
9:15 pm-3:45 pm
2 stops23h 30m
Best time to book a flight from Dulles Intl to Ireland
Have a flexible travel schedule? Discover the best time to fly to 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 Ireland
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Ireland?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ireland (average of $371). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $540). 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.
What is the cheapest time of day to fly from IAD to IE?
Find hourly flight availability from Dulles Intl to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 15, 2026.
When flying from Washington, D.C. Dulles Intl Airport to Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to Ireland
Explore weekly flight availability from Dulles Intl to Ireland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 15, 2026.
The most flights from IAD to IE0 are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).
How often are flights from Washington, D.C. to Ireland delayed?
About 18% of weekly flights between Washington, D.C. and Ireland have experienced delays in the past year, with the average delay time being 171 minutes.
What is the most punctual flight time for Washington, D.C. to Ireland flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Washington, D.C. to Ireland flights?
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 15% of flights being delayed.
Reviews of airlines servicing Ireland
Get insights into the airlines that provide service to 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 Ireland. Reviews last updated January 15, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Ireland, such as United Airlines, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Dane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Ireland. 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 Dulles Intl to Ireland
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Dulles Intl to Ireland
Discover the top 10 airlines that operate flights from Dulles Intl to 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 January 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$795 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$367 | Average$572 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$371 | Average$547 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$427 | Average$595 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$435 | Average$848 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$456 | Average$488 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$468 | Average$681 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$484 | Average$786 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$524 | Average$754 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$587 | Average$952 | FlexibilityNo cancel fee | On-time77% |