€125 Find Cheap Flights from Washington, D.C. to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Ireland departing on 18/2. 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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Flight Deals

Best Ireland Flight Deals from Washington, D.C.

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€392
Cork
Cork1 stop€506
Shannon
Shannon1 stop€498
Knock
Knock2 stops€675
Milltown (Kerry)
Milltown (Kerry)2 stops€644
Donegal
Donegal2 stops€976
Dublin
Dublin1 stop€392
Cork
Cork1 stop€506
Shannon
Shannon1 stop€498
Knock
Knock2 stops€675
Milltown (Kerry)
Milltown (Kerry)2 stops€644
Donegal
Donegal2 stops€976

Cheap Flights from Washington, D.C. to Ireland

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

Thu, 23 Apr - Sun, 26 Apr
Scandinavian Airlines Logo
20:20 - 18:20
IAD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
10:15 - 16:50
DUB
-
IAD
11h 35m
1 stop
€392Scandinavian Airlines
Sat, 18 Apr - Sat, 25 Apr
Scandinavian Airlines Logo
20:20 - 10:25
IAD
-
DUB
33h 05m
2 stops
Scandinavian Airlines Logo
10:15 - 16:50
DUB
-
IAD
11h 35m
1 stop
€394Scandinavian Airlines
Sun, 26 Apr - Wed, 6 May
TAP AIR PORTUGAL Logo
22:35 - 18:05
IAD
-
DUB
14h 30m
1 stop
TAP AIR PORTUGAL Logo
10:45 - 20:35
DUB
-
IAD
14h 50m
1 stop
€396TAP AIR PORTUGAL
Fri, 17 Apr - Wed, 22 Apr
TAP AIR PORTUGAL Logo
17:05 - 10:00
IAD
-
DUB
11h 55m
1 stop
TAP AIR PORTUGAL Logo
10:45 - 15:05
DUB
-
IAD
33h 20m
1 stop
€402TAP AIR PORTUGAL
Wed, 22 Apr - Wed, 6 May
JetBlue Logo
18:40 - 08:20
DCA
-
DUB
8h 40m
1 stop
JetBlue Logo
11:40 - 22:59
DUB
-
DCA
16h 19m
1 stop
€414JetBlue
Wed, 22 Apr - Wed, 6 May
JetBlue Logo
12:00 - 08:20
DCA
-
DUB
15h 20m
1 stop
JetBlue Logo
10:40 - 15:42
DUB
-
DCA
10h 02m
1 stop
€415JetBlue
Mon, 2 Mar - Thu, 12 Mar
Icelandair Logo
19:40 - 10:15
BWI
-
DUB
9h 35m
1 stop
Icelandair Logo
11:30 - 19:40
DUB
-
BWI
12h 10m
1 stop
€443Icelandair
Sun, 26 Apr - Thu, 30 Apr
Icelandair Logo
20:30 - 13:15
BWI
-
DUB
11h 45m
1 stop
Icelandair Logo
14:15 - 19:25
DUB
-
BWI
10h 10m
1 stop
€445Icelandair
Mon, 6 Apr - Wed, 15 Apr
Aer Lingus Logo
20:40 - 16:10
IAD
-
SNN
14h 30m
2 stops
Aer Lingus Logo
21:15 - 19:10
SNN
-
IAD
26h 55m
2 stops
€635Aer Lingus
Thu, 19 Mar - Sun, 22 Mar
Aer Lingus Logo
18:05 - 12:25
IAD
-
NOC
14h 20m
2 stops
Aer Lingus Logo
13:00 - 16:35
NOC
-
IAD
31h 35m
2 stops
€708Aer Lingus
Booking Insights

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

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

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

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

The cheapest ticket to Ireland from Washington, D.C. found in the last 72 hours was to Dublin, at €568 return. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €568.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of €583, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Ireland, 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. to Ireland is January, when tickets cost €439 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is €749 and €712 respectively.

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

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

For Washington, D.C. to Ireland, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Ireland back to Washington, D.C., the best deals are generally found on Thursday, with Sunday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Ireland, 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 a flight from Washington, D.C. to Ireland, you should book around 3 weeks before departure, which saves you about 25% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€125
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Washington Dulles Airport to Dublin

FAQs - booking Ireland flights

  • Do you need to get a visa to fly from Washington, D.C., to Ireland?

    For entry into Ireland, U.S. citizens require only a valid passport, with no visa necessary for tourism or business stays lasting up to 90 days. The Irish Immigration Department may request evidence of ample funds upon arrival. Additionally, it's crucial to have at least one empty passport page for entry stamps.

  • What are some of the things to be aware of regarding child car seat laws in Ireland before I start driving after I arrive at the airport in Ireland?

    Children under 15 months old traveling in a vehicle in Ireland need to travel in a rear-facing car seat and then one facing forward until they are four years old. Children between the ages of four and six must travel in a booster seat, and then up to 12 years of age, they must travel on a booster cushion unless they've reached a weight of 79 lb. or a height of 59 in.

  • What would make a good choice for a sustainable airline for this flight?

    Aer Lingus is committed to sustainability, focusing on reducing its environmental impact. The airline invests in fuel-efficient aircraft, implements eco-friendly practices, and works to minimize carbon emissions. Aer Lingus actively engages in recycling efforts and collaborates with sustainable suppliers. The airline aims to contribute to a more environmentally conscious aviation industry through these initiatives, aligning with global efforts to address climate change and promote responsible business practices.

  • What are some reasons to upgrade to first class on United Airlines?

    Upgrading to First Class on United Airlines for flights from Washington, D.C., to Ireland offers an elevated travel experience. Passengers enjoy spacious seating, enhanced comfort, premium dining options, and personalized service. Priority boarding and access to exclusive airport lounges add convenience. The upgraded amenities provide a luxurious journey, making the long-haul flight more comfortable and enjoyable for travelers seeking a superior level of service.

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

    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 Washington, D.C. to Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington, D.C. to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Washington, D.C. to Ireland 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 from Washington, D.C. to Ireland?

    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 from Washington, D.C. to Ireland 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 Ireland?

    The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €607 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally at night, which is peak travel time and where the average cost of a ticket is €617.

Top tips for finding cheap flights to Ireland

  • When you want to travel from Washington, D.C. to Ireland, one of the quickest trips is aboard the direct flights offered by Aer Lingus and United Airlines that travel between Washington Dulles International Airport (IAD) and Dublin Airport (DUB).
  • Passengers looking to travel to the Shannon Airport (SNN) from Ronald Reagan Washington National Airport (DCA) can do so on a one-stop flight offered by United Airlines that has a layover at Newark International Airport (EWR).
  • If you are going to be flying aboard United Airlines from Washington Dulles International Airport, you have the option of waiting for your flight at one of the five United Club locations you will find at this airport.
  • Passengers who want to make their way to the Cork Airport (ORK) from Baltimore Washington International Airport (BWI) will find that Aer Lingus offers a one-stop flight that has a layover at Heathrow Airport (LHR).
  • Passengers planning to depart early in the morning on a flight to Ireland from Washington Dulles International Airport should consider staying the night before their flight at the Washington Dulles Airport Marriott, which sits right on the airport grounds.

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

 
Need help choosing which airline to fly with from Washington, D.C. to Ireland? 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.
7.2
Aer LingusOverall score based on 1447 reviews
6.9Entertainment
7.1Comfort
8.0Crew
7.4Boarding
6.6Food
Airline reviews

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

10.0 ExcellentAnonymous, Feb 2026
IAD - DUB
Read more Aer Lingus reviews

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

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

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

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

Cabin class types available on flights to Ireland

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