Cheap flights from Dublin to Washington, D.C. Dulles Intl Airport from £312
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
9 Jan — 16 Jan1
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 Thursday or Tuesday and return on a Sunday
Cheap flight deals from Dublin to Dulles Intl
Enter your travel dates to find the best prices.
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 10 December 2025.
Thu 11/1212:15DUB - IAD
Nonstop8h 20mAer Lingus
Sun 14/1217:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 9/12£366
Wed 24/1218:35DUB - IAD
1 stop27h 05mMultiple Airlines
Sat 3/122:20IAD - DUB
Nonstop7h 00mMultiple Airlines
Deal found 8/12£511
Wed 24/1212:05DUB - IAD
Nonstop8h 15mLufthansa
Sat 3/122:20IAD - DUB
Nonstop7h 00mLufthansa
Deal found 8/12£518
Tue 23/1212:05DUB - IAD
Nonstop8h 15mUnited Airlines
Thu 1/122:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 7/12£528
Fri 12/1205:55DUB - IAD
1 stop15h 10mKLM
Sun 14/1215:38IAD - DUB
1 stop11h 07mKLM
Deal found 9/12£535
Thu 11/1211:30DUB - IAD
1 stop12h 00mIcelandair
Thu 8/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 9/12£538
Thu 11/1220:40DUB - IAD
1 stop23h 55mBritish Airways
Thu 8/121:45IAD - DUB
1 stop12h 05mBritish Airways
Deal found 8/12£542
Fri 12/1212:05DUB - IAD
Nonstop8h 15mUnited Airlines
Sun 14/1222:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 9/12£543
Thu 11/1205:55DUB - IAD
2 stops18h 24mDelta
Thu 8/112:23IAD - DUB
2 stops14h 37mDelta
Deal found 8/12£557
Tue 23/1212:05DUB - IAD
Nonstop8h 15mUnited Airlines
Fri 2/122:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 9/12£558
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 10 December 2025.
Thu 15/111:30DUB - IAD
1 stop12h 00mIcelandair
Mon 19/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 6/12£312
Wed 11/219:05DUB - IAD
1 stop27h 10mScandinavian Airlines
Thu 19/220:30IAD - DUB
1 stop31h 55mScandinavian Airlines
Deal found 9/12£340
Fri 13/219:05DUB - IAD
1 stop28h 45mScandinavian Airlines
Wed 18/220:30IAD - DUB
1 stop34h 15mScandinavian Airlines
Deal found 9/12£340
Wed 11/219:05DUB - IAD
1 stop27h 10mScandinavian Airlines
Mon 16/220:30IAD - DUB
1 stop16h 50mScandinavian Airlines
Deal found 9/12£340
Tue 10/211:30DUB - IAD
2 stops58h 45mScandinavian Airlines
Thu 19/220:30IAD - DUB
1 stop16h 50mScandinavian Airlines
Deal found 9/12£346
Tue 10/211:30DUB - IAD
2 stops58h 45mScandinavian Airlines
Mon 16/220:30IAD - DUB
2 stops33h 15mScandinavian Airlines
Deal found 9/12£351
Wed 4/311:30DUB - IAD
2 stops34h 45mScandinavian Airlines
Wed 11/321:30IAD - DUB
2 stops32h 30mScandinavian Airlines
Deal found 7/12£353
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 10 December 2025.
Tue 20/112:15DUB - IAD
Nonstop8h 20mAer Lingus
Sat 24/117:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 9/12£355
Wed 21/112:15DUB - IAD
Nonstop8h 20mAer Lingus
Wed 28/117:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 7/12£366
Thu 12/212:15DUB - IAD
Nonstop8h 20mAer Lingus
Thu 19/217:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 9/12£380
Mon 12/112:15DUB - IAD
Nonstop8h 20mIberia
Tue 20/117:05IAD - DUB
Nonstop6h 50mIberia
Deal found 8/12£486
Wed 4/312:15DUB - IAD
Nonstop8h 20mAmerican Airlines
Wed 11/322:00IAD - DUB
Nonstop6h 50mAmerican Airlines
Deal found 9/12£498
Wed 22/416:35DUB - IAD
Nonstop7h 55mAmerican Airlines
Sat 2/520:25IAD - DUB
Nonstop6h 50mAmerican Airlines
Deal found 9/12£501
Wed 24/1212:05DUB - IAD
Nonstop8h 15mLufthansa
Sat 3/122:20IAD - DUB
Nonstop7h 00mLufthansa
Deal found 8/12£518
Tue 23/1212:05DUB - IAD
Nonstop8h 15mUnited Airlines
Thu 1/122:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 7/12£528
Tue 23/1212:05DUB - IAD
Nonstop8h 15mUnited Airlines
Fri 2/122:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 9/12£558
Sat 20/1212:05DUB - IAD
Nonstop8h 15mUnited Airlines
Fri 2/122:20IAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 9/12£587
Last-minute flights from Dublin to Dulles Intl
Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated 10 December 2025 and is based on user searches.
Sun 11/117:15DUB - IAD
1 stop27h 50mMultiple Airlines
Mon 19/118:50IAD - DUB
1 stop15h 55mMultiple Airlines
Deal found 9/12£384
Mon 12/108:50DUB - IAD
1 stop12h 15mKLM
Tue 20/118:05IAD - DUB
1 stop17h 15mKLM
Deal found 8/12£381
Mon 12/111:30DUB - IAD
2 stops16h 42mBritish Airways
Tue 20/113:08IAD - DUB
2 stops14h 32mBritish Airways
Deal found 8/12£385
Mon 12/105:55DUB - IAD
2 stops18h 14mDelta
Mon 19/119:49IAD - DUB
2 stops14h 56mDelta
Deal found 9/12£388
Thu 15/111:30DUB - IAD
1 stop12h 00mIcelandair
Mon 19/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 6/12£312
Thu 15/113:10DUB - IAD
1 stop11h 45mBritish Airways
Mon 19/117:46IAD - DUB
2 stops18h 19mBritish Airways
Deal found 8/12£366
Tue 20/112:30DUB - IAD
1 stop33h 45mScandinavian Airlines
Sat 24/120:30IAD - DUB
1 stop34h 15mScandinavian Airlines
Deal found 9/12£345
Tue 20/112:15DUB - IAD
Nonstop8h 20mAer Lingus
Sat 24/117:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 9/12£355
Wed 21/110:20DUB - IAD
1 stop14h 35mAmerican Airlines
Wed 28/121:45IAD - DUB
1 stop11h 20mAmerican Airlines
Deal found 7/12£363
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 10 December 2025.
Wed 11/216:55DUB - IAD
1 stop27h 20mTAP AIR PORTUGAL
Deal found 9/12£343
Wed 11/210:20DUB - IAD
1 stop14h 35mMultiple Airlines
Deal found 8/12£348
Sun 22/311:10DUB - IAD
1 stop33h 05mTAP AIR PORTUGAL
Deal found 8/12£349
Sat 21/310:55DUB - IAD
1 stop14h 00mBritish Airways
Deal found 8/12£382
Sun 31/512:45DUB - IAD
1 stop12h 35mBritish Airways
Deal found 9/12£386
Sun 29/309:30DUB - IAD
2 stops16h 00mMultiple Airlines
Deal found 8/12£390
Sun 1/313:40DUB - IAD
1 stop11h 15mMultiple Airlines
Deal found 8/12£408
Wed 11/212:15DUB - IAD
Nonstop8h 20mAmerican Airlines
Deal found 9/12£435
Tue 6/118:05DUB - IAD
3 stops45h 14mMultiple Airlines
Deal found 9/12£459
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 10 December 2025.
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 10 December 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
Thu 15/1
11:30-18:30
1 stop12h 00m
Washington, D.C. Dulles Intl
Mon 19/1
19:40-10:15
1 stop9h 35m
£312
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 11/2
19:05-17:15
1 stop27h 10m
Washington, D.C. Dulles Intl
Thu 19/2
20:30-09:25
1 stop31h 55m
£340
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Fri 13/2
19:05-18:50
1 stop28h 45m
Washington, D.C. Dulles Intl
Wed 18/2
20:30-11:45
1 stop34h 15m
£340
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 11/2
19:05-17:15
1 stop27h 10m
Washington, D.C. Dulles Intl
Mon 16/2
20:30-18:20
1 stop16h 50m
£340
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Tue 10/2
11:30-17:15
2 stops58h 45m
Washington, D.C. Dulles Intl
Thu 19/2
20:30-18:20
1 stop16h 50m
£346
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Tue 10/2
11:30-17:15
2 stops58h 45m
Washington, D.C. Dulles Intl
Mon 16/2
20:30-10:45
2 stops33h 15m
£351
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 4/3
11:30-17:15
2 stops34h 45m
Washington, D.C. Dulles Intl
Wed 11/3
21:30-10:00
2 stops32h 30m
£353
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 11/2
16:55-15:15
1 stop27h 20m
£343
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 11/2
10:20-19:55
1 stop14h 35m
£348
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Sun 22/3
11:10-16:15
1 stop33h 05m
£349
Flights are sorted by cheapest return flights first.
Deals found on 9/12
Showing 1-10 of 15 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 5 December 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 36 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 £275). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £449). 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 10 December 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.
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 10 December 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 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 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?
Sunday 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 14% 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 65% 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.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £357.
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 12m.
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 10 December 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.
It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
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 £312, Icelandair can have you in Washington, D.C. Dulles Intl Airport from Dublin in 12h. 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 Icelandair is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £282. Additional return tickets that might be worth considering are offered by Lufthansa and British Airways, with the lowest prices starting at £298 and £312, respectively. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 37% 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 SWISS (100%), Air Canada (89%) or United Airlines (89%) 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 £189. On average you can expect to pay £502. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £369.
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 £275). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £449). 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 10 December 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 10 December 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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