$356 Find Cheap Flights from Ireland 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 to Washington, D.C. departing on 11/19. 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 for flights 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 for flights to Washington, D.C., as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ireland to Washington, D.C.

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

Sat, Feb 21 - Tue, Mar 10
Icelandair Logo
11:30 am - 6:40 pmDUB-BWI
12h 10m1 stop
Icelandair Logo
8:40 pm - 10:15 amBWI-DUB
9h 35m1 stop
$400Icelandair
Find Deal
Wed, Feb 11 - Wed, Feb 18
British Airways Logo
10:20 am - 6:45 pmDUB-BWI
13h 25m1 stop
British Airways Logo
8:35 pm - 12:15 pmBWI-DUB
10h 40m1 stop
$429British Airways
Find Deal
Thu, Dec 11 - Thu, Jan 8
Multiple Airlines Logo
1:10 pm - 7:55 pmDUB-IAD
11h 45m1 stop
Multiple Airlines Logo
6:20 pm - 9:50 amIAD-DUB
10h 30m1 stop
$429Multiple Airlines
Find Deal
Wed, Nov 26 - Thu, Feb 26
Scandinavian Airlines Logo
12:30 pm - 5:15 pmDUB-IAD
33h 45m1 stop
Scandinavian Airlines Logo
8:30 pm - 9:25 amIAD-DUB
31h 55m1 stop
$430Scandinavian Airlines
Find Deal
Fri, Dec 19 - Wed, Jan 7
Aer Lingus Logo
4:20 pm - 7:30 pmDUB-IAD
8h 10mnonstop
Aer Lingus Logo
5:05 pm - 4:55 amIAD-DUB
6h 50mnonstop
$444Aer Lingus
Find Deal
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
11:30 am - 5:15 pmDUB-IAD
34h 45m2 stops
Scandinavian Airlines Logo
8:30 pm - 6:20 pmIAD-DUB
16h 50m1 stop
$445Scandinavian Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Aer Lingus Logo
12:15 pm - 3:35 pmDUB-IAD
8h 20mnonstop
Aer Lingus Logo
5:05 pm - 4:55 amIAD-DUB
6h 50mnonstop
$447Aer Lingus
Find Deal
Fri, Dec 5 - Mon, Dec 8
Multiple Airlines Logo
11:30 am - 8:58 pmDUB-DCA
14h 28m1 stop
Multiple Airlines Logo
1:41 pm - 8:40 amDCA-DUB
13h 59m1 stop
$453Multiple Airlines
Find Deal
Fri, Nov 28 - Sat, Nov 29
United Airlines Logo
1:35 pm - 9:34 pmDUB-DCA
12h 59m1 stop
United Airlines Logo
8:40 pm - 7:10 amDCA-DUB
29h 30m1 stop
$488United Airlines
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Sun, Jan 11 - Thu, Feb 5
United Airlines Logo
9:00 am - 5:31 pmDUB-DCA
13h 31m2 stops
United Airlines Logo
3:30 pm - 8:10 amDCA-DUB
11h 40m1 stop
$559United Airlines
Find Deal

Everything you should know

Top airlines
Aer Lingus
Most flights • 14 per week
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 15% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$400
Typical prices: $372-$552
Icelandair
Sat 2/21Tue 3/10
DUB - BWI • 1 stop
Cheapest non-stop
$444
Typical prices: $520-$646
Aer Lingus
Fri 12/19Wed 1/7
DUB - IAD • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to Washington, D.C. is January, where tickets cost $490 on average for one-way flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Ireland is $778 and $697 respectively. For return trips, the best month to travel is January with an average price of $490.

What is a good deal for flights to Washington, D.C.?

If you’re looking for cheap airfare to Washington, D.C., 25% of our users found tickets to Washington, D.C. for the following prices or less: From Dublin $526 one-way - $552 round-trip.

How far in advance should I book a flight 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 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 73 days before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport, with an average flight price of $202.

Good to know

Low seasonFebruary
Cheapest flight$356
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Dublin to Baltimore

FAQs - booking Washington, D.C. flights

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    Out of the 2 airports in Washington, D.C., Reagan Washington National Airport is the nearest to the city center (4 miles). You'll travel 22 miles to reach the center of Washington, D.C. if you land in Washington Dulles Airport

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $616. The cheapest price found on KAYAK in the last 2 weeks cost $454 and departed from Dublin Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Monday where tickets can be as cheap as $674. On the other hand, the most expensive day to fly is Tuesday, where prices are $905 on average.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington, D.C.?

    The cheapest time of day to fly to Washington, D.C. is generally in the afternoon, when flights cost $558 on average. The most expensive time of day to fly to Washington, D.C. is generally in the morning, which is peak travel time and where the average cost of a ticket is $816.

Top tips for finding cheap flights to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $526 or less one-way and $552 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top airlines flying from Ireland to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 8998 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

6.0 GoodMr, Oct 2025CPT - IAD
Read more United Airlines reviews

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

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

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

They out me in the baby row so I was surrounded by toddlers, they also did not send my luggage and was not able to book my connecting flight

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Owings Mills
Oxon Hill
Glen Burnie
Ellicott City
Greenbelt
Colonial Beach
Edgewood
Pikesville
Lutherville Timonium
Hunt Valley
Stevensville
Hyattsville
Capitol Heights
Camp Springs
Westminster

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

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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