$314 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 3/1. 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

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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Everything you should know

Cheapest round-trip
$421
Overall average: $473
Icelandair
Fri 1/23Fri 1/30
DUB - BWI • 1 stop
Cheapest non-stop
$473
Typical prices: $465-$567
Aer Lingus
Tue 1/20Sat 1/24
DUB - IAD • Non-stop
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
February
Cheapest • 14% 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
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.

Fri, Jan 23 - Fri, Jan 30
Icelandair Logo
11:30 am - 6:40 pm
DUB
-
BWI
12h 10m1 stop
Icelandair Logo
7:40 pm - 10:15 am
BWI
-
DUB
9h 35m1 stop
$421Icelandair
Fri, Jan 23 - Fri, Jan 30
Icelandair Logo
11:30 am - 6:30 pm
DUB
-
IAD
12h 00m1 stop
Icelandair Logo
7:40 pm - 10:15 am
IAD
-
DUB
9h 35m1 stop
$421Icelandair
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
11:30 am - 5:15 pm
DUB
-
IAD
34h 45m2 stops
Scandinavian Airlines Logo
8:30 pm - 6:20 pm
IAD
-
DUB
16h 50m1 stop
$426Scandinavian Airlines
Sat, Jan 24 - Sat, Jan 31
Scandinavian Airlines Logo
10:10 am - 6:50 pm
DUB
-
IAD
13h 40m1 stop
Scandinavian Airlines Logo
8:30 pm - 6:20 pm
IAD
-
DUB
16h 50m1 stop
$432Scandinavian Airlines
Fri, Jan 16 - Tue, Jan 20
American Airlines Logo
10:45 am - 11:21 pm
DUB
-
BWI
17h 36m2 stops
American Airlines Logo
2:46 pm - 12:10 pm
BWI
-
DUB
16h 24m2 stops
$489American Airlines
Tue, May 12 - Fri, May 22
British Airways Logo
6:55 pm - 7:40 pm
DUB
-
BWI
29h 45m1 stop
British Airways Logo
9:30 pm - 7:45 am
BWI
-
DUB
29h 15m1 stop
$491British Airways
Wed, Apr 29 - Sun, May 3
American Airlines Logo
9:30 am - 8:00 pm
DUB
-
DCA
15h 30m1 stop
American Airlines Logo
6:30 am - 6:30 am
DCA
-
DUB
19h 00m1 stop
$515American Airlines
Mon, Jan 12 - Mon, Jan 19
British Airways Logo
10:45 am - 10:15 pm
DUB
-
DCA
16h 30m2 stops
British Airways Logo
3:59 pm - 5:05 pm
DCA
-
DUB
20h 06m2 stops
$525British Airways
Fri, Jan 23 - Fri, Jan 30
Aer Lingus Logo
7:50 am - 6:45 pm
SNN
-
BWI
15h 55m1 stop
Aer Lingus Logo
8:35 pm - 3:45 pm
BWI
-
SNN
14h 10m1 stop
$645Aer Lingus
Sat, Jan 24 - Sat, Jan 31
Aer Lingus Logo
8:10 pm - 6:45 pm
ORK
-
BWI
27h 35m1 stop
Aer Lingus Logo
8:35 pm - 9:00 pm
BWI
-
ORK
19h 25m1 stop
$771Aer Lingus
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 February, where tickets cost $494 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 $781 and $697 respectively. For return trips, the best month to travel is February with an average price of $494.

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 $483 one-way - $684 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 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 36 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 $204.

Good to know

Low seasonFebruary
Cheapest flight$314
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 21% 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 $661. The cheapest price found on KAYAK in the last 2 weeks cost $443 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 Wednesday where tickets can be as cheap as $677. 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 $822.

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 $483 or less one-way and $684 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 9093 reviews
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

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

6.0 GoodClaudia, Dec 2025
GUA - IAD
Read more United Airlines reviews

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

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

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.

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.

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.

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
Oxon Hill
Owings Mills
Glen Burnie
Greenbelt
Ellicott City
Edgewood
Colonial Beach
Pikesville
Hunt Valley
Lutherville Timonium
Camp Springs
Stevensville
Hyattsville
Westminster
Capitol Heights

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.