IAD - DUB

£230 Find Cheap Flights from Washington, D.C. to Dublin

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 Dublin departing on 31/12. 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 Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Dublin, 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 Washington, D.C. to Dublin, as well as popular online travel agencies
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£369
Overall average: £454
TAP AIR PORTUGAL
Fri 23/1Sun 25/1
IAD - DUB • 1 stop
Cheapest direct flights
£431
Typical prices: £404-£604
Aer Lingus
Wed 28/1Wed 4/2
IAD - DUB • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Dulles' AeroTrain eases terminal transfers for flights.
Use Dublin's 24-hour buses for easy city access.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 17% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

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

Fri, 23 Jan - Sun, 25 Jan
TAP AIR PORTUGAL Logo
22:30 - 16:10
IAD
-
DUB
12h 40m1 stop
TAP AIR PORTUGAL Logo
04:25 - 15:15
DUB
-
IAD
15h 50m1 stop
£369TAP AIR PORTUGAL
Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
22:30 - 23:50
IAD
-
DUB
20h 20m2 stops
Multiple Airlines Logo
06:00 - 21:00
DUB
-
IAD
20h 00m2 stops
£375Multiple Airlines
Mon, 26 Jan - Fri, 30 Jan
Scandinavian Airlines Logo
16:50 - 18:20
IAD
-
DUB
20h 30m1 stop
Scandinavian Airlines Logo
19:05 - 18:50
DUB
-
IAD
28h 45m1 stop
£377Scandinavian Airlines
Mon, 26 Jan - Fri, 30 Jan
Scandinavian Airlines Logo
16:50 - 11:45
IAD
-
DUB
13h 55m1 stop
Scandinavian Airlines Logo
20:20 - 18:50
DUB
-
IAD
27h 30m2 stops
£383Scandinavian Airlines
Mon, 16 Mar - Tue, 24 Mar
Scandinavian Airlines Logo
21:30 - 10:45
IAD
-
DUB
33h 15m2 stops
Scandinavian Airlines Logo
11:30 - 18:15
DUB
-
IAD
34h 45m2 stops
£387Scandinavian Airlines
Mon, 16 Feb - Wed, 25 Feb
Icelandair Logo
19:40 - 10:15
IAD
-
DUB
9h 35m1 stop
Icelandair Logo
11:30 - 18:30
DUB
-
IAD
12h 00m1 stop
£390Icelandair
Tue, 10 Feb - Mon, 23 Feb
Icelandair Logo
19:40 - 10:15
IAD
-
DUB
9h 35m1 stop
Icelandair Logo
11:30 - 18:30
DUB
-
IAD
12h 00m1 stop
£404Icelandair
Fri, 23 Jan - Mon, 26 Jan
Multiple Airlines Logo
19:40 - 22:55
IAD
-
DUB
22h 15m3 stops
Multiple Airlines Logo
21:15 - 18:30
DUB
-
IAD
26h 15m2 stops
£407Multiple Airlines
Fri, 23 Jan - Mon, 26 Jan
Multiple Airlines Logo
19:40 - 18:50
IAD
-
DUB
18h 10m2 stops
Multiple Airlines Logo
06:20 - 18:30
DUB
-
IAD
17h 10m2 stops
£408Multiple Airlines
Sat, 2 May - Sat, 9 May
Scandinavian Airlines Logo
20:20 - 18:20
IAD
-
DUB
17h 00m1 stop
Scandinavian Airlines Logo
10:15 - 16:50
DUB
-
IAD
11h 35m1 stop
£410Scandinavian Airlines
Booking Insights

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

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

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

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

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

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

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 Dublin, 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 Dublin is February, where tickets cost £446 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £738 and £711 respectively.

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

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 Dublin, 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 Dublin, you should book around 3 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

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

 
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.
Airlines
Aer Lingus

Aer Lingus offers 22-inch wide Business Class seats with a 6'5" lay-flat bed for comfort.


Aer Lingus provides free Wi-Fi for Business Class passengers on long-haul flights.

United Airlines

United Polaris offers lie-flat seats with aisle access in a 1-2-1 layout for privacy.


United Polaris Lounge provides a luxurious experience with restaurants and less crowded spaces.

Airports
IAD

Dulles offers the AeroTrain for quick access between terminals, ideal for evening departures to Dublin. Plan your route using the airport map.

DUB

For a smooth arrival in Dublin, use the 24-hour buses to reach the city centre. Double-decker buses offer great views from the top deck.

Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa Garcia

Marisa Garcia

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, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

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 out at sea, likely en route to Antarctica or the Arctic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on DUB

Ramsey Qubein

Ramsey Qubein

An avid traveller 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.

Read more

Good to know - Cheap tickets from Washington, D.C. to Dublin

Low seasonFebruary
Cheapest flight£230
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Washington, D.C. to Dublin

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 Washington, D.C. to Dublin flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Dublin was £230 for a one-way ticket and £369 for a return.

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

    American Airlines, and Lufthansa offer inflight Wi-Fi service on the Washington, D.C. to Dublin flight route.

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

    The Airbus A321neo is the aircraft model that flies most regularly on the Washington, D.C. to Dublin flight route.

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

    There are direct flights from Washington, D.C. to Dublin on a daily basis.

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

    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 Dublin.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Dublin with an airline and back to Washington, D.C. 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 Dublin?

    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 Dublin from Washington, D.C. 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 Washington, D.C. Dulles Intl Airport to Dublin

  • Looking for a cheap flight from Dublin to Washington, D.C.? 25% of our users found flights on this route for £584 or less one-way and £474 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Dublin.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl 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

Direct returns

Dublin to Washington, D.C. Dulles Intl

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

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

Information on your arrival and departure airports