DCA - DUB

$236 Find Cheap Flights from Reagan Washington National Airport to Dublin - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Dublin departing on 12/1. 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

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Everything you should know

Cheapest round-trip
$635
Typical prices: $662-$790
United Airlines
Fri 9/4Sat 9/12
DCA - DUB • 1 stop
Cheapest one-way
$236
Aer Lingus
Tue 12/1
DCA - DUB • 1 stop
Top airlines
Cheapest • from $635 (round-trip)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Reagan-National and Dublin. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $567 (round-trip)
Shortest trip • 9h 35m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Dublin (DCA-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Dublin 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 Reagan-National to Dublin

Fri, Sep 4 - Sat, Sep 12
United Airlines Logo
8:20 pm - 7:30 am
DCA
-
DUB
30h 10m
1 stop
United Airlines Logo
9:20 am - 12:00 pm
DUB
-
DCA
31h 40m
2 stops
$635United Airlines
Wed, Sep 2 - Thu, Sep 10
United Airlines Logo
6:00 am - 7:45 am
DCA
-
DUB
20h 45m
1 stop
United Airlines Logo
9:20 am - 9:50 pm
DUB
-
DCA
17h 30m
1 stop
$640United Airlines
Mon, Aug 17 - Mon, Aug 24
Air Canada Logo
9:40 am - 7:45 am
DCA
-
DUB
17h 05m
1 stop
Air Canada Logo
9:50 am - 10:18 am
DUB
-
DCA
29h 28m
1 stop
$641Air Canada
Thu, Aug 13 - Tue, Aug 25
United Airlines Logo
2:00 pm - 9:45 am
DCA
-
DUB
14h 45m
1 stop
United Airlines Logo
9:50 am - 3:38 pm
DUB
-
DCA
10h 48m
1 stop
$642United Airlines
Mon, Aug 10 - Wed, Aug 19
United Airlines Logo
5:55 pm - 11:10 am
DCA
-
DUB
12h 15m
1 stop
United Airlines Logo
9:20 am - 6:12 pm
DUB
-
DCA
13h 52m
1 stop
$643United Airlines
Mon, Aug 10 - Wed, Aug 19
Air Canada Logo
12:40 pm - 7:45 am
DCA
-
DUB
14h 05m
2 stops
Air Canada Logo
9:20 am - 7:57 pm
DUB
-
DCA
15h 37m
1 stop
$644Air Canada
Thu, Aug 13 - Thu, Aug 20
Air Canada Logo
12:40 pm - 8:15 am
DCA
-
DUB
14h 35m
2 stops
Air Canada Logo
9:50 am - 10:18 am
DUB
-
DCA
29h 28m
1 stop
$645Air Canada
Mon, Aug 10 - Wed, Aug 19
Air Canada Logo
12:40 pm - 7:45 am
DCA
-
DUB
14h 05m
2 stops
Air Canada Logo
9:20 am - 7:57 pm
DUB
-
DCA
15h 37m
1 stop
$646Air Canada
Wed, Aug 19 - Thu, Aug 27
Air Canada Logo
12:40 pm - 7:45 am
DCA
-
DUB
14h 05m
2 stops
Air Canada Logo
9:50 am - 6:12 pm
DUB
-
DCA
13h 22m
2 stops
$647Air Canada
Mon, Aug 10 - Wed, Aug 19
Air Canada Logo
12:40 pm - 7:45 am
DCA
-
DUB
14h 05m
2 stops
Air Canada Logo
9:20 am - 9:48 pm
DUB
-
DCA
17h 28m
2 stops
$648Air Canada
Booking Insights

KAYAK's insights & trends for Reagan-National to Dublin flights

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

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to Dublin?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to Dublin departing in September.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Dublin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Dublin, 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 Washington, D.C. Reagan-National Airport to Dublin is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,221 and $1,105 respectively.

Good to know

Low season

October

Cheapest flight

$236
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Reagan Washington National Airport to Dublin

When to book flights from Reagan-National to Dublin

Are your dates flexible? Find out the best times to travel from Reagan-National to Dublin 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 Reagan Washington National Airport to Dublin flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Dublin?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Dublin was $236 for a one-way ticket and $635 for a round-trip.

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

    Yes

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

    We unfortunately don’t have that data for this specific route.

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

    oneworld is the only airline alliance operating flights between Reagan Washington National Airport and Dublin.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Dublin are Aer Lingus and JetBlue. With an average price for the route of $590 and an overall rating of 7.3, Aer Lingus is the most popular choice. JetBlue is also a great choice for the route, with an average price of $742 and an overall rating of 7.1.

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

    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 Reagan Washington National Airport to Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Reagan Washington National Airport 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 Reagan Washington National Airport to Dublin?

    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 Dublin with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and DUB 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 Reagan Washington National Airport to Dublin?

    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 Dublin from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Reagan-National to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Dublin. 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 Reagan-National to Dublin? 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.
7.3
Aer LingusOverall score based on 1671 reviews
6.6Food
7.2Comfort
7.0Entertainment
7.4Boarding
8.1Crew
Airline reviews

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

8.0 ExcellentAnonymous, Jul 2026
LAX - DUB
Read more Aer Lingus reviews

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

The check in and boarding process was smooth, and the flight was fine.

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

The economy seats are very cramped and the food was bizarre. However, I did like the greek yogurt option for breakfast.

horrible our connectig flight was late and we had to rush thru DFW to the next gate with 15 minutes time. Get to gate and its changed. no one knows whats going on . finally get a new gate and the plane has been sent back to the hanger . Boarded 4 hours after our original flight time and then sat at the gate for over an hour as the captian said the cargo doors were open and no one was in the airprot or on the ground to find out what was happening. this caused us to miss the first day of the tour as we missed our transfer and hotel meetup no apologies or accomodations offered to assist

Flight is delayed by more than an hour without any reason, the jet blue gates kept changing every 20 mins and there is no proper communication. No ear phones provided in flight, there is a screen with entertainment but what is the use, I have earphones but the console has outdated audio connections, no usb C or bluetooth, they are living 15 years behind

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight was on time and smooth. Customer service was decent

They forced me to check my hand luggage at the gate.

Still hasn’t left. Why are you asking how it was?

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

One hour delayed departure resulted in problems with planned ground transportation at my destination.

Everything you need to know for your flight from Reagan-National to Dublin

Information on your arrival and departure airports