DUB - WAS

$309 Find Cheap Flights from Dublin to Washington, D.C.

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 Washington, D.C. departing on 2/25. 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.

 
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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$398
Typical prices: $505-$672
Multiple Airlines
Mon 3/23Tue 4/7
DUB - IAD • 1 stop
Cheapest non-stop
$529
Typical prices: $528-$628
Aer Lingus
Sun 2/22Sun 3/1
DUB - IAD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Dublin's U.S. pre-clearance saves time on arrival.
United's Economy Plus offers extra legroom benefits.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Icelandair
Cheapest • from $426 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DUB
-
IAD
Cheapest
DUB
-
IAD
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 12% price drop
July
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 Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dublin to Washington, D.C. (DUB-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dublin to Washington, D.C. 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 Washington, D.C.

Mon, Mar 23 - Tue, Apr 7
Multiple Airlines Logo
8:40 pm - 4:35 pm
DUB
-
IAD
23h 55m
1 stop
Multiple Airlines Logo
5:40 pm - 6:50 pm
IAD
-
DUB
20h 10m
1 stop
$398Multiple Airlines
Wed, May 13 - Mon, May 25
Multiple Airlines Logo
8:35 am - 7:40 pm
DUB
-
BWI
16h 05m
1 stop
Multiple Airlines Logo
9:30 pm - 7:35 pm
BWI
-
DUB
17h 05m
1 stop
$407Multiple Airlines
Wed, Apr 22 - Sat, May 2
Multiple Airlines Logo
8:30 pm - 3:50 pm
DUB
-
IAD
24h 20m
1 stop
Multiple Airlines Logo
5:40 pm - 7:30 pm
IAD
-
DUB
20h 50m
1 stop
$407Multiple Airlines
Wed, May 13 - Mon, May 25
Multiple Airlines Logo
8:35 am - 7:40 pm
DUB
-
BWI
16h 05m
1 stop
Multiple Airlines Logo
9:30 pm - 6:40 pm
BWI
-
DUB
16h 10m
1 stop
$408Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Icelandair Logo
11:30 am - 6:30 pm
DUB
-
IAD
12h 00m
1 stop
Icelandair Logo
7:40 pm - 10:15 am
IAD
-
DUB
9h 35m
1 stop
$426Icelandair
Thu, Feb 26 - Wed, Mar 4
Icelandair Logo
11:30 am - 6:30 pm
DUB
-
IAD
12h 00m
1 stop
Icelandair Logo
7:40 pm - 10:15 am
IAD
-
DUB
9h 35m
1 stop
$428Icelandair
Wed, Feb 11 - Wed, Feb 18
TAP AIR PORTUGAL Logo
4:55 pm - 3:15 pm
DUB
-
IAD
27h 20m
1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 11:20 pm
IAD
-
DUB
19h 50m
1 stop
$440TAP AIR PORTUGAL
Mon, May 4 - Thu, May 14
JetBlue Logo
10:40 am - 3:42 pm
DUB
-
DCA
10h 02m
1 stop
JetBlue Logo
7:00 am - 8:20 am
DCA
-
DUB
20h 20m
1 stop
$486JetBlue
Wed, Feb 11 - Wed, Feb 18
Delta Logo
5:55 am - 5:53 pm
DUB
-
DCA
16h 58m
2 stops
Delta Logo
11:06 am - 8:00 am
DCA
-
DUB
15h 54m
2 stops
$507Delta
Wed, Feb 11 - Wed, Feb 18
Delta Logo
5:55 am - 4:29 pm
DUB
-
DCA
15h 34m
2 stops
Delta Logo
5:00 pm - 3:45 pm
DCA
-
DUB
17h 45m
2 stops
$508Delta
Booking Insights

KAYAK's insights & trends for Dublin to Washington, D.C. flights

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

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

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

What is the cheapest Dublin to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Dublin to Washington, D.C. costs $531 on the route between Dublin (DUB) and Washington, D.C. Dulles Intl Airport (IAD). It is also the most popular route.

What’s the cheapest day of the week to fly from Dublin to Washington, D.C.?

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

Your flight ticket price will generally be cheaper if you fly to Washington, D.C. on a Wednesday and more expensive on a Friday. On your return trip to Dublin, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

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

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., 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. is September, where tickets cost $511 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $786 and $677 respectively.

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

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 2 stops layover the cheapest option at $491 on average.

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

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., 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., you should book around 3 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from Dublin to Washington, D.C.

 
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$309
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Dublin to Washington Dulles Airport

When to book flights from Dublin to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Dublin to Washington, D.C. 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 flights from Dublin to Washington, D.C.

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

    In the last 3 days, the lowest price for a flight from Dublin to Washington, D.C. was $309 for a one-way ticket and $398 for a round-trip.

  • Do I need a passport to fly between Dublin and Washington, D.C.?

    A passport is required to fly from Dublin to Washington, D.C..

  • Which airports will I be using when flying from Dublin to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from Dublin. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Dublin to Washington, D.C.?

    Iberia, Aer Lingus, American Airlines, Delta, and Air Canada offer inflight Wi-Fi service on the Dublin to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Dublin to Washington, D.C.?

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

  • Which airline alliances offer flights from Dublin to Washington, D.C.?

    Star Alliance is the only airline alliance operating flights between Dublin and Washington, D.C..

  • On which days can I fly direct from Dublin to Washington, D.C.?

    There are nonstop flights from Dublin to Washington, D.C. 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 $869 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 $600 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Dublin to Washington, D.C.?

    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, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. 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, D.C.?

    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, D.C. with an airline and back to Dublin with another airline.

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

    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, D.C. 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.

  • Looking for a cheap flight? 25% of our users found flights on this route for $521 or less one-way and $631 or less round-trip.

Prefer to fly direct from Dublin to Washington, D.C.?

 
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..
Find which airlines fly direct from Dublin Airport to Washington, D.C., which days they fly and book direct flights.

Direct departures

Dublin to Washington, D.C.

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. 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 Washington, D.C.

 
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 Washington, D.C.? 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 9205 reviews
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

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

6.0 GoodMichael, Jan 2026
GVA - IAD
Read more United Airlines reviews

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.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

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

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Everything you need to know for your flight from Dublin to Washington, D.C.

Information on your arrival and departure airports