DUB - IAD

$330 Find Cheap Flights from Dublin to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Dulles Intl departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Washington, D.C., as well as popular online travel agencies
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Flight Deals

Cheap Flights from Dublin to Dulles Intl (DUB-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dublin to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dublin to Dulles Intl

Sat, Nov 22 - Sat, Dec 6
British Airways Logo
10:55 am - 7:55 pmDUB-IAD
14h 00m1 stop
British Airways Logo
9:45 pm - 3:00 pmIAD-DUB
12h 15m1 stop
$416British Airways
Find Deal
Sun, Oct 26 - Mon, Nov 3
British Airways Logo
3:55 pm - 4:35 pmDUB-IAD
28h 40m1 stop
British Airways Logo
9:45 pm - 7:40 pmIAD-DUB
16h 55m1 stop
$418British Airways
Find Deal
Sun, Oct 26 - Sun, Nov 2
British Airways Logo
3:55 pm - 4:35 pmDUB-IAD
28h 40m1 stop
British Airways Logo
6:20 pm - 9:50 amIAD-DUB
10h 30m1 stop
$420British Airways
Find Deal
Sat, Nov 1 - Sat, Nov 8
Lufthansa Logo
5:10 am - 3:35 pmDUB-IAD
14h 25m1 stop
Lufthansa Logo
10:20 pm - 10:20 amIAD-DUB
7h 00mnonstop
$424Lufthansa
Find Deal
Wed, Oct 15 - Wed, Oct 22
Scandinavian Airlines Logo
7:05 pm - 7:59 pmDUB-IAD
29h 54m1 stop
Scandinavian Airlines Logo
10:05 pm - 11:50 amIAD-DUB
32h 45m1 stop
$425Scandinavian Airlines
Find Deal
Mon, Oct 13 - Sun, Oct 19
Lufthansa Logo
9:00 am - 3:50 pmDUB-IAD
11h 50m1 stop
Lufthansa Logo
10:20 pm - 4:55 pmIAD-DUB
13h 35m1 stop
$431Lufthansa
Find Deal
Thu, Sep 25 - Mon, Sep 29
United Airlines Logo
9:50 am - 9:38 amDUB-IAD
28h 48m1 stop
United Airlines Logo
10:15 pm - 10:20 amIAD-DUB
7h 05mnonstop
$450United Airlines
Find Deal
Wed, Nov 26 - Tue, Feb 24
United Airlines Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
United Airlines Logo
10:20 pm - 10:20 amIAD-DUB
7h 00mnonstop
$451United Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 15
Aer Lingus Logo
4:35 pm - 7:30 pmDUB-IAD
7h 55mnonstop
Aer Lingus Logo
9:00 pm - 8:50 amIAD-DUB
6h 50mnonstop
$458Aer Lingus
Find Deal
Fri, Dec 5 - Mon, Dec 8
Icelandair Logo
11:30 am - 6:30 pmDUB-IAD
12h 00m1 stop
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
$472Icelandair
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
United's Priority Boarding helps with carry-on space.
Allow three hours for U.S. pre-clearance at Dublin.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
British Airways
Cheapest • from $416 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 19% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$416
Overall average: $507
British Airways
Sat 11/22Sat 12/6
DUB - IAD • 1 stop
Cheapest non-stop
$428
Typical prices: $469-544
Aer Lingus
Wed 11/26Tue 2/24
DUB - IAD • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Expert advice

Expert advice for your flight from Dublin to Dulles Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aer Lingus

Aer Lingus business class offers 22” wide seats with a 6’5” lay-flat bed for comfort.


Aer Lingus provides free Wi-Fi for business class passengers on long-haul flights.

United Airlines

United Polaris offers lie-flat seats with aisle access, ideal for long-haul comfort.


United's Priority Boarding ensures overhead bin space, useful for carry-on bags.

Airports
DUB

Allow three hours for U.S. pre-clearance at DUB to avoid missing your flight due to lengthy queues, especially during busy months.

Read more about DUBby Ramsey Qubein
IAD

Use the Silver Line Metro from IAD for a convenient 50-minute ride to downtown D.C., avoiding expensive car travel.

Read more about IADby Stefanie Waldek
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on DUB

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Booking Insights

KAYAK's insights & trends for Dublin to Dulles Intl flights

Get data-powered insights and trends into flights from Dublin to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Dublin to Washington Dulles Airport?

The average price of all round-trip flights from Dublin to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Dublin to Washington Dulles Airport, you should consider leaving on a Friday and avoid Thursdays if you are looking for the best rates. For your return to Dublin, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Dublin to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dublin to Washington, D.C. Dulles Intl Airport is February, where tickets cost $492 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $802 and $759 respectively.

Can I save money by flying with a layover from Dublin to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $724 on average.

How far in advance should I book a flight from Dublin to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dublin to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$330
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Dublin to Washington Dulles Airport

When to book flights from Dublin to Dulles Intl

Are your dates flexible? Find out the best times to travel from Dublin to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Dublin to Washington Dulles Airport flights

  • How can I get from Washington Dulles Airport to Washington DC?

    There are several options. You can take the train; it'll get you there in 1h (with one train transfer) for around $11 (under €10). You take a 15min Silver Line Express Bus, which runs to the metro stop Wiehle-Reston East; from there, you can take a train directly into the city in 45min. There are also buses that run directly between the airport and the city; you can get the Metrobus 5A for around $7.50 (under €6.50), which will get you there in under 1h. If you use a taxi, you'll get there in 45min for around $60-70 (around €50-60), or using a ride-sharing app you'll pay around $45 (less than €40).

  • I'm being picked up by someone I know at Washington Dulles. What's a convenient way to meet them?

    Before you arrive, you should get in touch with the person that's picking you up and agree on an Arrival Door (marked 1-7) on the Arrivals Level. The driver should follow signs for Arrivals, then wait in the Cell Phone Lot where they can wait for confirmation that you're ready for them at the Arrival Door — it's not permitted to wait at the Arrival Door, it's only for immediate pick-ups and drop-offs.

  • What is the cheapest flight from Dublin to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Dublin to Washington, D.C. Dulles Intl Airport was $330 for a one-way ticket and $416 for a round-trip.

  • Do I need a passport to fly between Dublin and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Dublin and on arrival in Washington Dulles Airport.

  • Which airlines offer Wi-Fi service onboard planes from Dublin to Washington Dulles Airport?

    Delta, and Air Canada offer inflight Wi-Fi service on the Dublin to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Dublin to Washington Dulles Airport?

    The Boeing 757-200 is the aircraft model that flies most regularly on the Dublin to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Dublin to Washington Dulles Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Dublin and Washington Dulles Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Dublin to Washington Dulles Airport?

    There are nonstop flights from Dublin to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Dublin to Washington, D.C., United Airlines or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Dublin to Washington, D.C. are United Airlines and Aer Lingus. With an average price for the route of $802 and an overall rating of 7.4, United Airlines is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of $657 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Dublin to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dublin to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Dublin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Dublin with another airline. Booking your flights between Dublin and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $520 or less one-way and $724 or less round-trip.
  • Most hotel shuttles that pick up from Washington Dulles (IAD) are by request. You call them using the free telephones near the restrooms when you land, then cross the street outside Arrivals to find the pick-up spot marked "Hotel Shuttles".
  • Washington Dulles Airport is assisted by Travellers Aid volunteers who serve the multiple information desks around the airport. They're located in every concourse, and in the main Arrivals and Departures areas. They can help you easily navigate the airport if you need assistance.
  • You can get Fast-Track tickets on Dublin Airport's (DUB) website for between €6-8; it'll help you cut the queues when you're going through airport security, and you'll get live flight updates to your phone.

Prefer to fly direct from Dublin to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Dublin to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Dublin Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Dublin to Washington, D.C. Dulles Intl

Monday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Tuesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Wednesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Thursday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Friday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Saturday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Sunday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Dublin

Monday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Tuesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Wednesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Thursday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Friday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Saturday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Sunday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Dublin to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8926 reviews
7.1Entertainment
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
Airline reviews

IAD with the archaic people movers is just a place to be avoided.

10.0 ExcellentThomas, Aug 2025CMH - IAD
Read more United Airlines reviews

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Better food than other airlines and the flight staff was very attentive and nice.

Very good except for the boarding process which was more hectic than it should have been

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

Horrible. I had to wait in Dublin for 4 hours for the next connecting flight which took my to London and than i had to wait 3 hours for the flight to Dusseldorf

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

We had a long delay leaving IOM. No food or drunk service as it is a short flight. Shuttled by bus from terminal to plane with packed in conditions on bus.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Everything you need to know for your flight from Dublin to Dulles Intl

Information on your arrival and departure airports

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