$436+ Cheap flights from Dulles Intl (IAD) to Dublin (DUB)
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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Dublin 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or November, booked 84 days in advance, depart on a Sunday or Wednesday and return on a Monday
Cheap flight deals from Dulles Intl to Dublin
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to DublinExplore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:15 pm -
Nonstop7h 00m
Wed 10/712:35 pm -
Nonstop8h 10m
Deal found 9/11![Aer Lingus logo]()
$558
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 pm -
1 stop16h 30m
Mon 10/196:35 pm -
1 stop27h 10m
Deal found 9/14![SWISS logo]()
$588
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:15 pm -
Nonstop7h 00m
Thu 11/53:50 pm -
Nonstop8h 30m
Deal found 9/13![Aer Lingus logo]()
$591
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:47 pm -
1 stop12h 58m
Thu 11/59:00 am -
1 stop11h 45m
Deal found 9/13![United Airlines logo]()
$592
This Air Canada deal was found by Cheapflights users on 9/13. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:45 am -
2 stops17h 30m
Thu 11/59:00 am -
1 stop16h 10m
Deal found 9/13![Air Canada logo]()
$599
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:55 pm -
Nonstop7h 00m
Mon 10/194:25 pm -
Nonstop8h 00m
Deal found 9/14![Aer Lingus logo]()
$620
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:45 pm -
1 stop11h 00m
Mon 9/2812:25 pm -
1 stop32h 40m
Deal found 9/11![Multiple Airlines logo]()
$671
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:55 am -
2 stops16h 15m
Tue 11/249:10 am -
2 stops17h 16m
Deal found 9/15![Multiple Airlines logo]()
$672
This United deal was found by Cheapflights users on 9/14. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:20 pm -
Nonstop7h 00m
Sun 11/296:35 pm -
1 stop27h 25m
Deal found 9/14![Multiple Airlines logo]()
$673
This eDestinos deal was found by Cheapflights users on 9/13. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/268:50 pm -
Nonstop6h 55m
Thu 12/313:50 pm -
Nonstop8h 30m
Deal found 9/13![Aer Lingus logo]()
$674
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:13 am -
2 stops19h 07m
Sun 10/255:45 am -
1 stop15h 00m
Deal found 9/14![Delta logo]()
$675
Best flights from Dulles Intl to DublinDiscover carefully curated flight deals from Dulles Intl to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Dulles Intl to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/176:00 am -
1 stop20h 30m
Thu 1/219:00 am -
2 stops36h 01m
Deal found 9/13![United Airlines logo]()
$681
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/279:45 pm -
1 stop31h 10m
Mon 1/48:40 pm -
1 stop24h 00m
Deal found 9/15![British Airways logo]()
$776
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1711:30 am -
2 stops17h 15m
Thu 12/2410:45 am -
1 stop11h 46m
Deal found 9/14![Delta logo]()
$801
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:05 pm -
Nonstop7h 15m
Mon 10/128:50 am -
Nonstop8h 00m
Deal found 9/15![United Airlines logo]()
$686
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:38 pm -
1 stop13h 52m
Sun 10/48:50 am -
Nonstop8h 00m
Deal found 9/12![United Airlines logo]()
$690
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:38 pm -
1 stop13h 52m
Sat 10/178:50 am -
Nonstop8h 00m
Deal found 9/12![United Airlines logo]()
$690
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:50 pm -
1 stop11h 05m
Sun 11/159:00 am -
1 stop11h 45m
Deal found 9/13![United Airlines logo]()
$692
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:45 am -
1 stop19h 45m
Sat 10/248:50 am -
Nonstop8h 00m
Deal found 9/12![United Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2710:15 pm -
Nonstop7h 05m
Fri 1/19:00 am -
1 stop16h 10m
Deal found 9/15![United Airlines logo]()
$784
Last-minute flights from Dulles Intl to DublinDiscover last-minute flight deals from Dulles Intl to Dublin. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Dublin. Data last updated September 16, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 9/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:35 pm -
Nonstop7h 05m
Sun 10/255:10 am -
1 stop15h 45m
Deal found 9/12![Lufthansa logo]()
$672
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:45 pm -
1 stop11h 00m
Mon 9/2812:25 pm -
1 stop32h 40m
Deal found 9/11![Multiple Airlines logo]()
$671
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:15 pm -
Nonstop7h 00m
Wed 10/712:35 pm -
Nonstop8h 10m
Deal found 9/11![Aer Lingus logo]()
$558
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 pm -
1 stop16h 30m
Mon 10/196:35 pm -
1 stop27h 10m
Deal found 9/14![SWISS logo]()
$588
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:55 pm -
Nonstop7h 00m
Mon 10/194:25 pm -
Nonstop8h 00m
Deal found 9/14![Aer Lingus logo]()
$620
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:40 pm -
Nonstop7h 00m
Sat 10/2412:35 pm -
Nonstop8h 10m
Deal found 9/15![Aer Lingus logo]()
$673
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:13 am -
2 stops19h 07m
Sun 10/255:45 am -
1 stop15h 00m
Deal found 9/14![Delta logo]()
$675
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:15 pm -
Nonstop7h 00m
Thu 11/53:50 pm -
Nonstop8h 30m
Deal found 9/13![Aer Lingus logo]()
$591
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:47 pm -
1 stop12h 58m
Thu 11/59:00 am -
1 stop11h 45m
Deal found 9/13![United Airlines logo]()
$592
This Air Canada deal was found by Cheapflights users on 9/13. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:45 am -
2 stops17h 30m
Thu 11/59:00 am -
1 stop16h 10m
Deal found 9/13![Air Canada logo]()
$599
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:45 am -
2 stops17h 30m
Mon 11/29:00 am -
1 stop11h 45m
Deal found 9/11![Multiple Airlines logo]()
$674
One-way flights from Dulles Intl to DublinSearch for one-way flight options from Dulles Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Dulles Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:25 am -
3 stops22h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$436
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:55 pm -
Nonstop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Aer Lingus logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 pm -
1 stop33h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$438
This Thrive Travel deal was found by Cheapflights users on 9/15. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:10 pm -
1 stop16h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![SWISS logo]()
$440
This Jettzy deal was found by Cheapflights users on 9/14. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:05 pm -
Nonstop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Aer Lingus logo]()
$441
This Thrive Travel deal was found by Cheapflights users on 9/12. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:20 pm -
1 stop13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$442
This Thrive Travel deal was found by Cheapflights users on 9/11. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:20 pm -
1 stop16h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![SWISS logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:04 pm -
3 stops40h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:12 am -
2 stops31h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:50 pm -
Nonstop6h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Aer Lingus logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:20 pm -
3 stops27h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:12 am -
1 stop17h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$452
Find flight deals from Dulles Intl to Dublin
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Dublin (DUB). 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 September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $486 (oojo) |
One-way from | $436 (Booking.com) |
Popular in | June |
Cheapest in | January |
Average price | $809 |
Good round-trip deal | $878 or less |
Good one-way deal | $493 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Dublin 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 7,457,451 searches. Data last updated September 16, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Wed 10/21
5:00 pm-7:30 am
1 stop33h 30m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$438
Quickest round-trip
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Fri 11/13
5:15 pm-5:05 am
Nonstop6h 50m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$459
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Sat 10/31
6:15 pm-5:05 am
Nonstop6h 50m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$459
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Fri 11/6
5:15 pm-5:05 am
Nonstop6h 50m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$468
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Wed 10/28
9:50 pm-8:45 am
Nonstop6h 55m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$473
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Sun 9/20
5:12 pm-8:45 am
1 stop10h 33m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$509
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Sat 10/31
10:35 pm-7:30 am
1 stop28h 55m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$550
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Fri 10/9
8:20 pm-7:55 am
1 stop30h 35m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$563
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Thu 9/24
5:15 pm-4:40 pm
2 stops18h 25m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$568
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Fri 10/9
5:45 pm-9:40 am
1 stop10h 55m
Dublin
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$576
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to Dublin
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Dublin in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Dublin flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Dublin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dulles Intl to Dublin
Have a flexible travel schedule? Discover the best time to fly to Dublin from Dulles Intl with our price prediction graph.
IAD-DUB
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.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Dublin
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How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Dublin?
The best time to book flights from Washington, D.C. Dulles Intl Airport to Dublin is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $619). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $1,076). 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 DUB?
Find hourly flight availability from Dulles Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2026.
When flying from Washington, D.C. Dulles Intl Airport to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Washington, D.C. to Dublin delayed?
About 14% of weekly flights between Washington, D.C. and Dublin have experienced delays in the past year, with the average delay time being 191 minutes.
What is the most punctual flight time for Washington, D.C. to Dublin 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 Dublin flights?
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.
What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Dublin?
Share of 1-stop round-trip flights from Washington, D.C. Dulles Intl Airport to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.
Frankfurt am Main (FRA) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Dublin on Cheapflights.
What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Dublin?
Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $606.
What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Dublin?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 9h 35m.
Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Dublin?
Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 20m.
The best insider tips for Washington, D.C. Dulles Intl Airport to Dublin flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Dublin trip
Our travel experts
Reviews of airlines servicing Dublin
Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated September 16, 2026.
Peruse reviews from past customers who have flown with United Airlines,Aer Lingus, andAmerican Airlines from Washington, D.C. Dulles Intl Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
IAD - TYS
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
IAD - TYS
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
IAD - TYS
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
IAD - TYS
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
IAD - TYS
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
IAD - TYS
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsCastleknock
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Dulles Intl and Dublin flights
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Top 8 airlines flying from Dulles Intl to Dublin
Discover the top 8 airlines that operate flights from Dulles Intl to Dublin. 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 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$620 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$391 | Average$871 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$429 | Average$784 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$445 | Average$782 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$511 | Average$806 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$576 | Average$879 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$577 | Average$606 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$590 | Average$867 | FlexibilityNo cancel fee | On-time76% |