€218 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to Ireland departing on 27/9. 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

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Flights Deals

Best Ireland Flight Deals from Dulles Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€308
Cork
Cork1 stop€487
Shannon
Shannon1 stop€447
Knock
Knock1 stop€1,174
Donegal
Donegal1 stop€580
Dublin
Dublindirect€308
Cork
Cork1 stop€487
Shannon
Shannon1 stop€447
Knock
Knock1 stop€1,174
Donegal
Donegal1 stop€580

Cheap Flights from Dulles Intl to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dulles Intl 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 Dulles Intl to Ireland

Mon, 11 Aug - Wed, 20 Aug
Aer Lingus Logo
20:25 - 08:15IAD-DUB
6h 50mdirect
Aer Lingus Logo
12:50 - 15:50DUB-IAD
8h 00mdirect
€308Aer Lingus
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Wed, 3 Dec - Wed, 10 Dec
Aer Lingus Logo
17:05 - 04:55IAD-DUB
6h 50mdirect
Aer Lingus Logo
12:15 - 15:35DUB-IAD
8h 20mdirect
€309Aer Lingus
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Wed, 29 Oct - Tue, 4 Nov
Aer Lingus Logo
22:00 - 08:50IAD-DUB
6h 50mdirect
Aer Lingus Logo
16:20 - 19:30DUB-IAD
8h 10mdirect
€312Aer Lingus
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Mon, 1 Dec - Thu, 11 Dec
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
Icelandair Logo
11:30 - 18:20DUB-IAD
11h 50m1 stop
€317Icelandair
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Mon, 25 Aug - Mon, 1 Sep
TAP AIR PORTUGAL Logo
22:20 - 18:05IAD-DUB
14h 45m1 stop
TAP AIR PORTUGAL Logo
18:50 - 15:20DUB-IAD
25h 30m1 stop
€359TAP AIR PORTUGAL
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Wed, 22 Oct - Wed, 5 Nov
TAP AIR PORTUGAL Logo
22:20 - 18:05IAD-DUB
14h 45m1 stop
TAP AIR PORTUGAL Logo
16:55 - 15:15DUB-IAD
27h 20m1 stop
€362TAP AIR PORTUGAL
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Mon, 11 Aug - Wed, 20 Aug
United Airlines Logo
17:25 - 11:10IAD-DUB
12h 45m1 stop
United Airlines Logo
13:35 - 22:59DUB-IAD
14h 24m1 stop
€384United Airlines
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Wed, 22 Oct - Wed, 5 Nov
United Airlines Logo
17:15 - 09:45IAD-DUB
11h 30m1 stop
United Airlines Logo
09:00 - 11:52DUB-IAD
31h 52m2 stops
€388United Airlines
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Wed, 6 Aug - Tue, 26 Aug
 Logo
09:35 - 07:45IAD-DUB
17h 10m1 stop
 Logo
05:55 - 15:50DUB-IAD
14h 55m1 stop
€392
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Wed, 6 Aug - Tue, 26 Aug
 Logo
14:25 - 07:45IAD-DUB
12h 20m2 stops
 Logo
09:00 - 15:50DUB-IAD
11h 50m1 stop
€393
Find Deal
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KAYAK's insights & trends for Dulles Intl to Ireland flights

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

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Ireland.

The cheapest ticket to Ireland from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Dublin, at €563 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 €563.

Can I save money by flying with a stopover from Washington, D.C. Dulles Intl Airport 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.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at €1,074 on average.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Ireland is January, when tickets cost €496 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is €802 and €752 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Ireland?

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

For Washington Dulles Airport to Ireland, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Ireland back to Washington Dulles Airport, the best deals are generally found on Monday, with Sunday being the most expensive.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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 the flight from Washington, D.C. Dulles Intl Airport to Ireland, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.


Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight€218
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Washington Dulles Airport to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 at night, when retur flights cost €729 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 in the evening, which is peak travel time and where the average cost of a ticket is €806.

Everything you need to know for your flight from Dulles Intl to Ireland

Information on your arrival and departure airports

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