IAD - DUB

£435 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 5/8. 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
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Everything you should know

Cheapest return fare
£479
Typical prices: £528-£400
Scandinavian Airlines
Mon 9/11Fri 13/11
IAD - DUB • 2 stops
Cheapest direct flights
£603
Typical prices: £540-£400
United Airlines
Wed 4/11Tue 10/11
IAD - DUB • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
From Washington, D.C., Aer Lingus and United highlight premium long-haul comfort.
Dulles AeroTrain speeds terminal access; Dublin 24-hour buses reach the centre.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
You can fly direct with Aer Lingus and United Airlines. Average duration is 7h 01m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
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Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
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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
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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

Mon, 9 Nov - Fri, 13 Nov
Scandinavian Airlines Logo
20:30 - 10:45
IAD
-
DUB
33h 15m
2 stops
Scandinavian Airlines Logo
18:55 - 18:50
DUB
-
IAD
28h 55m
2 stops
£479Scandinavian Airlines
Wed, 4 Nov - Tue, 10 Nov
Scandinavian Airlines Logo
20:30 - 10:10
IAD
-
DUB
32h 40m
2 stops
Scandinavian Airlines Logo
11:30 - 17:15
DUB
-
IAD
34h 45m
2 stops
£500Scandinavian Airlines
Wed, 18 Nov - Wed, 25 Nov
Scandinavian Airlines Logo
20:30 - 10:10
IAD
-
DUB
32h 40m
2 stops
Scandinavian Airlines Logo
11:30 - 17:15
DUB
-
IAD
34h 45m
2 stops
£501Scandinavian Airlines
Thu, 1 Oct - Sat, 10 Oct
Scandinavian Airlines Logo
20:20 - 19:05
IAD
-
DUB
17h 45m
2 stops
Scandinavian Airlines Logo
21:00 - 17:00
DUB
-
IAD
25h 00m
2 stops
£507Scandinavian Airlines
Wed, 4 Nov - Wed, 11 Nov
Scandinavian Airlines Logo
20:30 - 10:10
IAD
-
DUB
32h 40m
2 stops
Scandinavian Airlines Logo
12:35 - 17:15
DUB
-
IAD
33h 40m
2 stops
£509Scandinavian Airlines
Thu, 5 Nov - Wed, 11 Nov
Scandinavian Airlines Logo
20:30 - 09:20
IAD
-
DUB
31h 50m
2 stops
Scandinavian Airlines Logo
12:35 - 17:15
DUB
-
IAD
33h 40m
2 stops
£511Scandinavian Airlines
Thu, 5 Nov - Tue, 10 Nov
Scandinavian Airlines Logo
20:30 - 18:10
IAD
-
DUB
16h 40m
2 stops
Scandinavian Airlines Logo
11:30 - 17:15
DUB
-
IAD
34h 45m
2 stops
£514Scandinavian Airlines
Wed, 7 Oct - Sat, 17 Oct
Scandinavian Airlines Logo
20:20 - 18:20
IAD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
20:00 - 17:00
DUB
-
IAD
26h 00m
2 stops
£523Scandinavian Airlines
Sun, 4 Oct - Sun, 18 Oct
Scandinavian Airlines Logo
20:20 - 10:10
IAD
-
DUB
32h 50m
2 stops
Scandinavian Airlines Logo
19:15 - 17:00
DUB
-
IAD
26h 45m
2 stops
£526Scandinavian Airlines
Sun, 15 Nov - Tue, 24 Nov
TAP AIR PORTUGAL Logo
22:30 - 16:10
IAD
-
DUB
12h 40m
1 stop
TAP AIR PORTUGAL Logo
16:55 - 20:35
DUB
-
IAD
32h 40m
1 stop
£527TAP AIR PORTUGAL
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.

How much is a return flight from Washington, D.C. Dulles Intl Airport to Dublin?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Dublin departing in November.

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, Friday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Dublin back to Washington, D.C., the best deals are generally found on Tuesday, with Wednesday 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 January, where tickets cost £452 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is £820 and £777 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 24% 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.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

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.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

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.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

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.

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

Low seasonJanuary
Cheapest flight£435
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 9% 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 £435 for a one-way ticket and £479 for a return.

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

    All the following airlines offer inflight Wi-Fi service on the Washington, D.C. to Dublin flight route: SWISS, United Airlines, KLM, American Airlines, Delta, and Lufthansa.

  • 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 £401 or less one-way and £763 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