Cheap flights from Dublin to Washington, D.C. Dulles Intl Airport from £311
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
7 Dec — 14 Dec1
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 January or November, booked 37 days in advance, depart on a Tuesday or Thursday and return on a Sunday
Cheap 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 7 November 2025.
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 7 November 2025.
Wed 3/1211:30DUB - IAD
1 stop12h 00mIcelandair
Wed 10/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£311
Fri 5/1211:30DUB - IAD
1 stop12h 00mIcelandair
Sun 14/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 6/11£315
Fri 5/1211:30DUB - IAD
1 stop12h 00mIcelandair
Mon 8/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£337
Thu 11/1211:30DUB - IAD
1 stop12h 00mIcelandair
Thu 8/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 6/11£353
Wed 26/1108:50DUB - IAD
1 stop12h 15mDelta
Mon 8/1212:19IAD - DUB
2 stops14h 41mDelta
Deal found 6/11£355
Wed 26/1108:50DUB - IAD
1 stop12h 15mDelta
Tue 2/1218:50IAD - DUB
1 stop15h 55mDelta
Deal found 5/11£356
Fri 14/1105:55DUB - IAD
1 stop15h 10mDelta
Sun 23/1112:11IAD - DUB
1 stop15h 34mDelta
Deal found 6/11£357
Wed 12/1105:55DUB - IAD
1 stop15h 10mDelta
Sun 16/1110:05IAD - DUB
1 stop16h 40mDelta
Deal found 5/11£358
Thu 13/1108:50DUB - IAD
1 stop12h 15mDelta
Wed 19/1118:05IAD - DUB
1 stop17h 15mDelta
Deal found 5/11£360
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 7 November 2025.
Fri 5/1211:30DUB - IAD
1 stop12h 00mIcelandair
Mon 8/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£337
Tue 24/316:55DUB - IAD
1 stop33h 05mTAP AIR PORTUGAL
Thu 16/417:45IAD - DUB
1 stop25h 20mTAP AIR PORTUGAL
Deal found 6/11£347
Tue 24/311:30DUB - IAD
2 stops34h 45mScandinavian Airlines
Thu 16/420:20IAD - DUB
2 stops33h 00mScandinavian Airlines
Deal found 5/11£354
Wed 26/1108:50DUB - IAD
1 stop12h 15mDelta
Mon 8/1212:19IAD - DUB
2 stops14h 41mDelta
Deal found 6/11£355
Mon 12/110:45DUB - IAD
2 stops17h 27mBritish Airways
Sun 18/118:20IAD - DUB
1 stop12h 55mBritish Airways
Deal found 5/11£355
Fri 9/117:15DUB - IAD
1 stop27h 50mMultiple Airlines
Sun 18/118:50IAD - DUB
1 stop15h 55mMultiple Airlines
Deal found 5/11£356
Thu 8/111:30DUB - IAD
1 stop12h 00mIcelandair
Mon 19/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£346
Wed 26/1108:50DUB - IAD
1 stop12h 15mDelta
Tue 2/1212:19IAD - DUB
2 stops14h 41mDelta
Deal found 5/11£356
Tue 13/111:30DUB - IAD
1 stop12h 00mIcelandair
Mon 19/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£346
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 7 November 2025.
Wed 3/1216:20DUB - IAD
Nonstop8h 10mAer Lingus
Wed 10/1221:00IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 5/11£360
Fri 5/1212:15DUB - IAD
Nonstop8h 20mAer Lingus
Sun 14/1221:00IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 6/11£362
Thu 27/1112:15DUB - IAD
Nonstop8h 20mAer Lingus
Sat 6/1217:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 4/11£363
Tue 24/312:05DUB - IAD
Nonstop8h 15mUnited Airlines
Thu 16/422:05IAD - DUB
Nonstop7h 15mUnited Airlines
Deal found 6/11£438
Mon 23/312:05DUB - IAD
Nonstop8h 15mLufthansa
Thu 16/422:05IAD - DUB
Nonstop7h 15mLufthansa
Deal found 6/11£461
Wed 26/1112:05DUB - IAD
Nonstop8h 15mLufthansa
Tue 2/1222:20IAD - DUB
Nonstop7h 00mLufthansa
Deal found 5/11£461
Thu 27/1112:15DUB - IAD
Nonstop8h 20mAer Lingus
Wed 3/1221:00IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 5/11£464
Wed 19/1112:15DUB - IAD
Nonstop8h 20mAer Lingus
Sat 22/1121:00IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 6/11£465
Wed 3/1212:15DUB - IAD
Nonstop8h 20mIberia
Wed 10/1217:05IAD - DUB
Nonstop6h 50mIberia
Deal found 5/11£467
Thu 27/1112:05DUB - IAD
Nonstop8h 15mUnited Airlines
Sat 6/1222:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 5/11£468
Wed 26/1112:05DUB - IAD
Nonstop8h 15mUnited Airlines
Mon 8/1222:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 6/11£469
Last-minute flights from Dublin to Dulles Intl
Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated 7 November 2025 and is based on user searches.
Wed 12/1105:55DUB - IAD
1 stop15h 10mDelta
Sun 16/1110:05IAD - DUB
1 stop16h 40mDelta
Deal found 5/11£358
Thu 13/1108:50DUB - IAD
1 stop12h 15mDelta
Wed 19/1112:11IAD - DUB
2 stops23h 09mDelta
Deal found 5/11£360
Fri 14/1105:55DUB - IAD
1 stop15h 10mDelta
Sun 23/1112:11IAD - DUB
1 stop15h 34mDelta
Deal found 6/11£357
Wed 26/1105:55DUB - IAD
1 stop15h 10mDelta
Mon 8/1218:50IAD - DUB
1 stop15h 55mDelta
Deal found 6/11£355
Wed 26/1108:50DUB - IAD
1 stop12h 15mDelta
Tue 2/1218:50IAD - DUB
1 stop15h 55mDelta
Deal found 5/11£356
Wed 3/1211:30DUB - IAD
1 stop12h 00mIcelandair
Wed 10/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£311
Fri 5/1211:30DUB - IAD
1 stop12h 00mIcelandair
Sun 14/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 6/11£315
Fri 5/1211:30DUB - IAD
1 stop12h 00mIcelandair
Mon 8/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 5/11£337
Thu 11/1211:30DUB - IAD
1 stop12h 00mIcelandair
Thu 8/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 6/11£353
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 7 November 2025.
Wed 11/208:50DUB - IAD
1 stop11h 45mMultiple Airlines
Deal found 6/11£340
Wed 11/212:15DUB - IAD
Nonstop8h 20mIberia
Deal found 5/11£427
Wed 17/1220:40DUB - IAD
1 stop23h 55mMultiple Airlines
Deal found 6/11£457
Fri 19/1207:00DUB - IAD
1 stop17h 55mMultiple Airlines
Deal found 5/11£478
Mon 29/1205:55DUB - IAD
1 stop15h 10mKLM
Deal found 4/11£508
Sat 29/1105:55DUB - IAD
1 stop15h 10mDelta
Deal found 5/11£627
Sat 29/1111:30DUB - IAD
2 stops13h 07mMultiple Airlines
Deal found 6/11£697
Fri 2/109:30DUB - IAD
1 stop12h 00mUnited Airlines
Deal found 7/11£865
Cheapflights Fare Finder
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 7 November 2025.
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
Dublin
Fly to
Dulles Intl
Route
Depart
Return
Price
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Fri 5/12
11:30-18:30
1 stop12h 00m
Washington, D.C. Dulles Intl
Mon 8/12
19:40-10:15
1 stop9h 35m
£337
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Thu 8/1
11:30-18:30
1 stop12h 00m
Washington, D.C. Dulles Intl
Mon 19/1
19:40-10:15
1 stop9h 35m
£346
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Tue 13/1
11:30-18:30
1 stop12h 00m
Washington, D.C. Dulles Intl
Mon 19/1
19:40-10:15
1 stop9h 35m
£346
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Tue 24/3
16:55-22:00
1 stop33h 05m
Washington, D.C. Dulles Intl
Thu 16/4
17:45-00:05
1 stop25h 20m
£347
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Tue 24/3
11:30-18:15
2 stops34h 45m
Washington, D.C. Dulles Intl
Thu 16/4
20:20-10:20
2 stops33h 00m
£354
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 26/11
08:50-16:05
1 stop12h 15m
Washington, D.C. Dulles Intl
Mon 8/12
12:19-08:00
2 stops14h 41m
£355
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Mon 12/1
10:45-23:12
2 stops17h 27m
Washington, D.C. Dulles Intl
Sun 18/1
18:20-12:15
1 stop12h 55m
£355
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Fri 9/1
17:15-16:05
1 stop27h 50m
Washington, D.C. Dulles Intl
Sun 18/1
18:50-15:45
1 stop15h 55m
£356
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 26/11
08:50-16:05
1 stop12h 15m
Washington, D.C. Dulles Intl
Tue 2/12
12:19-08:00
2 stops14h 41m
£356
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 11/2
08:50-15:35
1 stop11h 45m
£340
Flights are sorted by cheapest return flights first.
Deals found on 5/11
Showing 1-10 of 16 results
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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.
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?
Use this chart to determine the optimal time to book a return flight from Dublin to Dulles Intl. Price data was last updated on 31 October 2025.
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 37 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, December is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £280). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £457). 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 7 November 2025.
Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Dublin to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the evening.
How much does it cost for a return flight from Dublin to Washington, D.C. Dulles Intl Airport?
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 7 November 2025.
The most flights from DUB to IAD are scheduled on a Monday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).
How often are flights from Dublin to Washington, D.C. delayed?
About 16% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 142 minutes.
What is the most punctual flight time for Dublin to Washington, D.C. flights?
Historically, flights departing in the early afternoon 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?
Monday 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, Lufthansa 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.
Reykjavik (KEF) – chosen by Cheapflights users on 74% of one-stop itineraries from Dublin to Washington, D.C. Dulles Intl Airport on Cheapflights.
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: 11h 04m.
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: 11h 04m.
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 Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 25m.
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 7 November 2025.
Check out reviews from past customers who have flown with United Airlines, Aer Lingus, andIcelandair 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.
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
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. 5 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 £337, Icelandair can have you in Washington, D.C. Dulles Intl Airport from Dublin in 12h. Airlines will cover a distance of 3393 mi.
What are the cheapest airlines flying from Dublin to Washington, D.C. Dulles Intl Airport round-trip?
Flying on Lufthansa is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £303. Additional return tickets that might be worth considering are offered by Icelandair and British Airways, with the lowest prices starting at £317 and £318, respectively. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 33% 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 Air Canada (85%), United Airlines (85%) or Lufthansa (82%) 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 £373. On average you can expect to pay £1,100. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £339.
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, December is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £280). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £457). 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 7 November 2025.
Discover the top 5 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 7 November 2025.
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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