Cheap flights from Dublin to Washington, D.C. Dulles Intl Airport from £179
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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
8 Sep — 15 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in November or February, booked 37 days in advance, depart on a Tuesday or Thursday and return on a Monday
Cheap flight deals from Dublin to Dulles Intl
Enter your travel dates to find the best prices.
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One-way
Cheapest flights from Dublin to Dulles Intl
Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 August 2026.
Wed 2/912:15 -
1 stop15h 00m
Tue 22/920:30 -
1 stop9h 35m
Deal found 8/8£408
Sat 5/914:15 -
1 stop10h 05m
Sat 19/920:30 -
1 stop9h 35m
Deal found 9/8£409
Tue 20/1014:15 -
1 stop10h 05m
Tue 10/1119:40 -
1 stop9h 35m
Deal found 7/8£422
Tue 20/1014:15 -
1 stop10h 05m
Tue 3/1119:40 -
1 stop9h 35m
Deal found 9/8£423
Thu 3/914:15 -
1 stop10h 05m
Mon 7/920:30 -
1 stop11h 45m
Deal found 6/8£439
Tue 22/1213:25 -
1 stop11h 30m
Mon 4/118:05 -
1 stop13h 30m
Deal found 7/8£439
Wed 21/1011:40 -
2 stops34h 20m
Wed 4/1120:30 -
2 stops32h 40m
Deal found 7/8£448
Tue 20/1009:50 -
1 stop14h 00m
Tue 10/1118:05 -
1 stop10h 30m
Deal found 5/8£449
Wed 28/1008:50 -
1 stop12h 05m
Sun 1/1121:30 -
1 stop12h 00m
Deal found 5/8£450
Best flights from Dublin to Dulles Intl
Discover carefully curated flight deals from Dublin to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 August 2026.
Wed 21/1011:40 -
2 stops34h 20m
Wed 4/1120:30 -
2 stops32h 40m
Deal found 7/8£448
Tue 20/1008:55 -
1 stop11h 40m
Tue 10/1112:35 -
2 stops15h 25m
Deal found 5/8£453
Wed 21/1008:35 -
1 stop16h 45m
Wed 4/1118:05 -
1 stop15h 00m
Deal found 5/8£456
Wed 21/1010:30 -
1 stop11h 55m
Wed 4/1118:05 -
1 stop10h 35m
Deal found 6/8£456
Tue 20/1005:55 -
1 stop14h 40m
Tue 3/1118:32 -
2 stops13h 08m
Deal found 5/8£456
Fri 23/1005:55 -
1 stop14h 40m
Fri 6/1108:03 -
1 stop18h 42m
Deal found 7/8£456
Direct flights from Dublin to Dulles Intl
Explore direct flight options from Dublin to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 August 2026.
Fri 28/816:25 -
Nonstop8h 00m
Wed 16/920:55 -
Nonstop7h 00m
Deal found 6/8£462
Sat 5/912:35 -
Nonstop8h 10m
Sat 19/917:15 -
Nonstop7h 00m
Deal found 9/8£466
Tue 22/916:35 -
Nonstop8h 00m
Tue 29/917:15 -
Nonstop7h 00m
Deal found 8/8£470
Sun 6/916:25 -
Nonstop8h 00m
Sun 13/917:15 -
Nonstop7h 00m
Deal found 8/8£478
Thu 4/212:15 -
Nonstop8h 20m
Thu 25/217:05 -
Nonstop6h 50m
Deal found 7/8£559
Wed 2/912:30 -
Nonstop8h 00m
Tue 22/922:35 -
Nonstop7h 05m
Deal found 8/8£588
Tue 20/1016:35 -
Nonstop8h 00m
Tue 3/1121:00 -
Nonstop6h 50m
Deal found 5/8£591
Thu 10/916:10 -
Nonstop8h 00m
Tue 15/921:05 -
Nonstop7h 00m
Deal found 9/8£591
Tue 25/812:35 -
Nonstop8h 10m
Tue 22/917:15 -
Nonstop7h 00m
Deal found 5/8£604
Last-minute flights from Dublin to Dulles Intl
Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated 9 August 2026 and is based on user searches.
Wed 2/912:15 -
1 stop15h 00m
Tue 22/920:30 -
1 stop9h 35m
Deal found 8/8£408
Thu 3/914:15 -
1 stop10h 05m
Mon 7/920:30 -
1 stop11h 45m
Deal found 6/8£439
Thu 3/908:55 -
1 stop11h 40m
Tue 8/921:45 -
1 stop15h 40m
Deal found 5/8£453
Thu 3/905:55 -
1 stop14h 40m
Tue 8/912:25 -
2 stops17h 00m
Deal found 7/8£457
Fri 4/908:55 -
1 stop11h 40m
Fri 11/911:10 -
1 stop17h 05m
Deal found 7/8£456
Sat 5/914:15 -
1 stop10h 05m
Sat 19/920:30 -
1 stop9h 35m
Deal found 9/8£409
Sat 5/908:55 -
2 stops15h 23m
Sat 19/921:45 -
1 stop12h 40m
Deal found 9/8£459
Sun 6/908:55 -
1 stop11h 40m
Mon 14/908:08 -
1 stop19h 37m
Deal found 6/8£456
Thu 10/908:55 -
1 stop11h 40m
Tue 15/921:45 -
1 stop15h 40m
Deal found 9/8£455
Sat 19/905:55 -
1 stop18h 40m
Sat 26/922:40 -
1 stop11h 45m
Deal found 5/8£458
Tue 22/905:55 -
1 stop14h 40m
Tue 29/918:15 -
1 stop19h 10m
Deal found 8/8£454
One-way flights from Dublin to Dulles Intl
Search for one-way flight options from Dublin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 9 August 2026.
Wed 26/809:40 -
2 stops34h 30m
Deal found 9/8£179
Fri 4/1211:10 -
1 stop14h 25m
Deal found 6/8£377
Fri 18/1211:10 -
1 stop14h 25m
Deal found 5/8£402
Sat 19/1216:55 -
1 stop32h 40m
Deal found 5/8£408
Sun 29/1113:40 -
1 stop31h 00m
Deal found 6/8£421
Wed 26/812:35 -
Nonstop8h 10m
Deal found 9/8£513
Thu 17/1218:30 -
2 stops26h 10m
Deal found 5/8£530
Tue 15/918:50 -
2 stops33h 09m
Deal found 5/8£548
Find flight deals from Dublin to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) 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 9 August 2026.
Customise your flight search to find flights from Dublin 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 9 August 2026.
Use the filters below to find and compare flights from Dublin to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 21/10
11:40-17:00
2 stops34h 20m
Washington, D.C. Dulles Intl
Wed 4/11
20:30-10:10
2 stops32h 40m
£448
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Tue 20/10
08:55-15:35
1 stop11h 40m
Washington, D.C. Dulles Intl
Tue 10/11
12:35-09:00
2 stops15h 25m
£453
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 21/10
08:35-20:20
1 stop16h 45m
Washington, D.C. Dulles Intl
Wed 4/11
18:05-14:05
1 stop15h 00m
£456
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Fri 23/10
05:55-15:35
1 stop14h 40m
Washington, D.C. Dulles Intl
Fri 6/11
08:03-07:45
1 stop18h 42m
£456
Fastest return journey
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 21/10
10:30-17:25
1 stop11h 55m
Washington, D.C. Dulles Intl
Wed 4/11
18:05-09:40
1 stop10h 35m
£456
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Tue 20/10
05:55-15:35
1 stop14h 40m
Washington, D.C. Dulles Intl
Tue 3/11
18:32-12:40
2 stops13h 08m
£456
Cheapest one-way
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 26/8
09:40-15:10
2 stops34h 30m
£179
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Sun 13/12
11:10-20:35
1 stop14h 25m
£377
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Sun 13/12
04:25-15:15
1 stop15h 50m
£377
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Fri 4/12
04:25-15:15
1 stop15h 50m
£377
Flights are sorted by cheapest return flights first.
Deals found on 9/8
Showing 1-10 of 16 resultsSorted by cheapest first
1
2
Best time to book a flight from Dublin to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Dublin with our price prediction graph.
DUB-IAD
Estimated return 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 Dublin to Washington, D.C. Dulles Intl Airport
Prices
Airlines
Delays
More
How far ahead should I book a flight from Dublin to Washington, D.C. Dulles Intl Airport?
To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C. Dulles Intl Airport, you should look to book at least 35 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £356). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £616). 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 DUB to IAD?
Find hourly flight availability from Dublin 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 9 August 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Washington, D.C. Dulles Intl Airport as you normally would.
How much does it cost for a return flight from Dublin to Washington, D.C. Dulles Intl Airport?
Airfare is below average for this route at the moment.
Dublin to Washington, D.C. Dulles Intl Airport flights typically cost between £540 and £697 in September.The cheapest return price found within the last 5 days was £408 on Icelandair (2 Sept–22 Sept).
Weekly flight availability from Dublin to Washington, D.C. Dulles Intl Airport
Explore weekly flight availability from Dublin to Dulles Intl. 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 9 August 2026.
The most flights from DUB to IAD are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).
How often are flights from Dublin to Washington, D.C. delayed?
About 14% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 152 minutes.
What is the most punctual flight time for Dublin to Washington, D.C. flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning 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 Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Dublin to Washington, D.C. flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.
What’s the top stopover airport for flights from Dublin to Washington, D.C. Dulles Intl Airport?
Share of one-stop return flights from Dublin to Washington, D.C. Dulles Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
London (LHR) – chosen by Cheapflights users on 40% of one-stop itineraries from Dublin to Washington, D.C. Dulles Intl Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Dublin to Washington, D.C. Dulles Intl Airport?
Average return fare for one-stop flights from Dublin to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
London (LHR) is the most affordable one-stop option, with an average return flight price of £323.
What’s the fastest stopover option from Dublin to Washington, D.C. Dulles Intl Airport?
Shortest average travel time for one-stop one-way flights from Dublin to Washington, D.C. Dulles Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 05m.
Which airport typically offers the quickest stopover for flights from Dublin to Washington, D.C. Dulles Intl Airport?
Average stopover duration for one-stop one-way flights from Dublin to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via London (LHR) offer the fastest connection on this route, with an average stopover time of 1h 50m.
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 9 August 2026.
Check out reviews from past customers who have flown with United Airlines,Aer Lingus, andLufthansa from Dublin to Washington, D.C. Dulles Intl Airport 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.
It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Related info for your journey
Find useful and relevant information for your journey from Dublin to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Dublin to Washington, D.C. Dulles Intl?
For a flight from Dublin to Washington, D.C. Dulles Intl, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 12 outbound flights to Washington, D.C. Dulles Intl per day. 2 airlines have flights to Washington, D.C. Dulles Intl from Dublin on a regular basis.
How long is the flight from Dublin to Washington, D.C. Dulles Intl Airport?
For as low as £453, Scandinavian Airlines can have you in Washington, D.C. Dulles Intl Airport from Dublin in 11h 40m. Airlines will cover a distance of 3393 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Dublin to Washington, D.C. Dulles Intl Airport round-trip?
Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £332. Another option worth looking into is Aer Lingus, starting at £339 return. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 31% less than the average price by searching for these airlines.
What are the most reliable airlines from Dublin to Washington, D.C. Dulles Intl Airport?
No one likes to see their flight delayed. When booking a flight from Dublin to Washington, D.C. Dulles Intl Airport consider choosing Qatar Airways (89%), American Airlines (83%) or Aer Lingus (83%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Dublin to Washington, D.C. Dulles Intl Airport?
The cheapest flight price from Dublin to Washington, D.C. Dulles Intl Airport is £424. On average you can expect to pay £608. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £493.
Can I find deals for business class flights from Dublin to Dulles Intl?
Yes. Cheapflights offers flight deals from Dublin to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £356). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £616). 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.
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 August 2026.
Discover the top 2 airlines that operate flights from Dublin 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 9 August 2026.
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 Dublin to Dulles Intl?
Deals for Dublin to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Dublin to Dulles Intl?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dublin to Dulles Intl for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Dublin to Dulles Intl with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Dulles Intl flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Dublin to Dulles Intl become cheaper?
Of course! You can now track prices for flights from Dublin to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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