DUB - IAD

$343 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 5/8. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$510
Overall average: $549
Icelandair
Wed 4/15Mon 4/20
DUB - IAD • 1 stop
Cheapest non-stop
$571
Typical prices: $573-$726
Aer Lingus
Sun 4/26Sun 5/3
DUB - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
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
Cheapest • from $510 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Aer Lingus and United Airlines. Average duration is 8h 06m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 87% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $551 (round-trip)
Shortest trip • 11h 40m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Expert advice
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

Wed, Apr 15 - Mon, Apr 20
Icelandair Logo
12:15 pm - 7:20 pm
DUB
-
IAD
12h 05m
1 stop
Icelandair Logo
8:30 pm - 1:15 pm
IAD
-
DUB
11h 45m
1 stop
$510Icelandair
Thu, Apr 9 - Sat, Apr 25
Icelandair Logo
2:15 pm - 7:20 pm
DUB
-
IAD
10h 05m
1 stop
Icelandair Logo
8:30 pm - 11:05 am
IAD
-
DUB
9h 35m
1 stop
$512Icelandair
Wed, Apr 8 - Tue, Apr 14
Icelandair Logo
12:15 pm - 7:20 pm
DUB
-
IAD
12h 05m
1 stop
Icelandair Logo
8:30 pm - 11:05 am
IAD
-
DUB
9h 35m
1 stop
$513Icelandair
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
9:45 am - 7:20 pm
DUB
-
IAD
14h 35m
2 stops
Multiple Airlines Logo
8:30 pm - 11:25 pm
IAD
-
DUB
21h 55m
2 stops
$514Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
7:40 am - 7:20 pm
DUB
-
IAD
16h 40m
2 stops
Multiple Airlines Logo
8:30 pm - 11:25 pm
IAD
-
DUB
21h 55m
2 stops
$515Multiple Airlines
Tue, Apr 28 - Tue, May 5
Icelandair Logo
2:15 pm - 7:20 pm
DUB
-
IAD
10h 05m
1 stop
Icelandair Logo
8:30 pm - 11:05 am
IAD
-
DUB
9h 35m
1 stop
$518Icelandair
Thu, May 21 - Thu, May 28
Icelandair Logo
2:15 pm - 7:20 pm
DUB
-
IAD
10h 05m
1 stop
Icelandair Logo
8:30 pm - 11:05 am
IAD
-
DUB
9h 35m
1 stop
$520Icelandair
Thu, May 21 - Mon, Jun 1
Icelandair Logo
2:15 pm - 7:20 pm
DUB
-
IAD
10h 05m
1 stop
Icelandair Logo
8:30 pm - 1:15 pm
IAD
-
DUB
11h 45m
1 stop
$522Icelandair
Mon, Jun 1 - Fri, Jun 5
Icelandair Logo
2:15 pm - 7:20 pm
DUB
-
IAD
10h 05m
1 stop
Icelandair Logo
11:20 pm - 11:05 am
IAD
-
DUB
30h 45m
1 stop
$526Icelandair
Wed, Apr 8 - Mon, Apr 13
Scandinavian Airlines Logo
7:05 pm - 5:00 pm
DUB
-
IAD
26h 55m
1 stop
Scandinavian Airlines Logo
8:20 pm - 6:20 pm
IAD
-
DUB
17h 00m
1 stop
$527Scandinavian Airlines
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 Wednesday and avoid Fridays 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 November, where tickets cost $524 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $806 and $804 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 $643 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 5 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from Dublin to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

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.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

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.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

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.

Good to know

Low seasonFebruary
Cheapest flight$343
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 29% 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 $343 for a one-way ticket and $510 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?

    Aer Lingus, Iberia, Delta, KLM, and Air France 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?

    Star Alliance is the only airline alliance operating flights between Dublin and Washington Dulles Airport.

  • 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 $874 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 $666 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 $502 or less one-way and $643 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 airlines flying 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 9431 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

6.0 GoodOlga, Mar 2026
FRA - IAD
Read more United Airlines reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experiences I've have had in along time. Would fly with them again.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

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

Information on your arrival and departure airports