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£230 Cheap Flights from Washington (IAD) to Dublin (DUB)

View £230 flight on Tue, 6 Oct 2026Opens in a new window

Flight 1

Popular airlines from Washington Dulles International Airport (IAD) to Dublin Airport (DUB)

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Cheap Flights from Washington (IAD) to Dublin (DUB)

Prices were available within the past 7 days and start at £230 for one-way flights and £467 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Sun, 7 Mar - Sun, 14 Mar
IAD
Washington
DUB
Dublin
£467 Return, found 6 days ago
£467
Return
found 6 days ago
Select TAP Portugal flight, departing Sun, 7 Mar from Washington to Dublin, returning Sun, 14 Mar, priced at £467 found 6 days ago
Icelandair
Tue, 10 Nov - Tue, 17 Nov
IAD
Washington
DUB
Dublin
£490 Return, found 3 days ago
£490
Return
found 3 days ago
Select Icelandair flight, departing Tue, 10 Nov from Washington to Dublin, returning Tue, 17 Nov, priced at £490 found 3 days ago
TAP Portugal
Sat, 24 Oct - Sat, 31 Oct
IAD
Washington
DUB
Dublin
£499 Return, found 1 hour ago
£499
Return
found 1 hour ago
Select TAP Portugal flight, departing Sat, 24 Oct from Washington to Dublin, returning Sat, 31 Oct, priced at £499 found 1 hour ago
TAP Portugal
Thu, 5 Nov - Sun, 8 Nov
IAD
Washington
DUB
Dublin
£501 Return, found 4 days ago
£501
Return
found 4 days ago
Select TAP Portugal flight, departing Thu, 5 Nov from Washington to Dublin, returning Sun, 8 Nov, priced at £501 found 4 days ago
TAP Portugal
Thu, 15 Oct - Sun, 18 Oct
IAD
Washington
DUB
Dublin
£502 Return, found 6 hours ago
£502
Return
found 6 hours ago
Select TAP Portugal flight, departing Thu, 15 Oct from Washington to Dublin, returning Sun, 18 Oct, priced at £502 found 6 hours ago
TAP Portugal
Wed, 28 Oct - Wed, 4 Nov
IAD
Washington
DUB
Dublin
£504 Return, found 1 hour ago
£504
Return
found 1 hour ago
Select TAP Portugal flight, departing Wed, 28 Oct from Washington to Dublin, returning Wed, 4 Nov, priced at £504 found 1 hour ago
Aer Lingus
Tue, 27 Oct - Tue, 3 Nov
IAD
Washington
DUB
Dublin
£513 Return, found 1 hour ago
£513
Return
found 1 hour ago
Select Aer Lingus flight, departing Tue, 27 Oct from Washington to Dublin, returning Tue, 3 Nov, priced at £513 found 1 hour ago
KLM
Mon, 26 Oct - Mon, 2 Nov
IAD
Washington
DUB
Dublin
£514 Return, found 1 hour ago
£514
Return
found 1 hour ago
Select KLM flight, departing Mon, 26 Oct from Washington to Dublin, returning Mon, 2 Nov, priced at £514 found 1 hour ago
British Airways
Tue, 9 Feb - Tue, 23 Feb
IAD
Washington
DUB
Dublin
£516 Return, found 8 hours ago
£516
Return
found 8 hours ago
Select British Airways flight, departing Tue, 9 Feb from Washington to Dublin, returning Tue, 23 Feb, priced at £516 found 8 hours ago
American Airlines
Tue, 10 Nov - Tue, 17 Nov
IAD
Washington
DUB
Dublin
£517 Return, found 3 days ago
£517
Return
found 3 days ago
Select American Airlines flight, departing Tue, 10 Nov from Washington to Dublin, returning Tue, 17 Nov, priced at £517 found 3 days ago

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest and Closest option available. Average driving time to city centre is 14 minutes. Flights from £652
DUB
Dublin Airport
CheapestClosest
Average driving time to city centre14 min
Flights from £652

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) cost?
You can find one-way and return flights from IAD to DUB with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when IAD to DUB ticket fares go up or down.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
If you're looking for the cheapest time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB), October is typically your best bet! You can expect average return fares around £497 during this month. October often sees lower prices as the peak summer travel season has ended, and the holiday rush hasn't quite begun, leading to less demand. Other budget-friendly months for this route include January and February.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
There are 2 airlines offering direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB). Here are the carriers:
  • Aer Lingus operates 14 direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) every week.
  • United operates 14 direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) every week.
How do I find cheap flights from Washington, DC (IAD) to Dublin (DUB)?
To find a cheap flight from Washington, DC (IAD) to Dublin (DUB), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
The cheapest months to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) are typically October and January, with average return flights around £497. These months often offer a good balance of more affordable fares and potentially fewer crowds, allowing you to enjoy your trip to Dublin without breaking the bank.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from IAD to DUB. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
A nonstop flight from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) typically takes around 7 hours, covering a distance of approximately 5,465 kilometers. If you opt for a flight with one stop, your journey will usually take longer, around 11 hours. Flights with two or more stops generally take about 14 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.
Can you fly business or first class from Washington, DC (IAD) to Dublin (DUB)?
Select the "Business class" and "First class" filters when looking for Washington, DC (IAD) to Dublin (DUB) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD) to Dublin (DUB)?
If you booked your Washington, DC (IAD) to Dublin (DUB) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, Austrian Airlines, British Airways, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Return price
£467
Distance
5432 km
Average flight time
12 hours 2 mins

Book with confidence

Compare flights from Washington to Dublin easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Dublin. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Dublin in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Dublin.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Washington Dulles Intl. (IAD) to Dublin (DUB)

The easiest way to view the best deals on flights from Washington to Dublin today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to Dublin start at just £467 and range up to £517.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Washington and Dublin
  • booking your flight during March, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Washington to Dublin flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Dublin for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Washington to Dublin easily and book with confidence

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