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£378 Cheap Flights from Dublin (DUB) to Washington (IAD)

View £378 flight on Wed, 13 Jan 2027Opens in a new window

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

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

Prices were available within the past 7 days and start at £378 for one-way flights and £413 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 13 Jan - Wed, 20 Jan
DUB
Dublin
IAD
Washington
£413 Return, found 11 hours ago
£413
Return
found 11 hours ago
Select Icelandair flight, departing Wed, 13 Jan from Dublin to Washington, returning Wed, 20 Jan, priced at £413 found 11 hours ago
Icelandair
Fri, 30 Oct - Fri, 13 Nov
DUB
Dublin
IAD
Washington
£420 Return, found 1 day ago
£420
Return
found 1 day ago
Select Icelandair flight, departing Fri, 30 Oct from Dublin to Washington, returning Fri, 13 Nov, priced at £420 found 1 day ago
Icelandair
Thu, 22 Oct - Fri, 13 Nov
DUB
Dublin
IAD
Washington
£423 Return, found 1 day ago
£423
Return
found 1 day ago
Select Icelandair flight, departing Thu, 22 Oct from Dublin to Washington, returning Fri, 13 Nov, priced at £423 found 1 day ago
Icelandair
Thu, 12 Nov - Mon, 16 Nov
DUB
Dublin
IAD
Washington
£428 Return, found 1 hour ago
£428
Return
found 1 hour ago
Select Icelandair flight, departing Thu, 12 Nov from Dublin to Washington, returning Mon, 16 Nov, priced at £428 found 1 hour ago
Icelandair
Mon, 1 Feb - Mon, 22 Feb
DUB
Dublin
IAD
Washington
£428 Return, found 22 hours ago
£428
Return
found 22 hours ago
Select Icelandair flight, departing Mon, 1 Feb from Dublin to Washington, returning Mon, 22 Feb, priced at £428 found 22 hours ago
British Airways
Mon, 21 Dec - Thu, 31 Dec
DUB
Dublin
IAD
Washington
£441 Return, found 4 days ago
£441
Return
found 4 days ago
Select British Airways flight, departing Mon, 21 Dec from Dublin to Washington, returning Thu, 31 Dec, priced at £441 found 4 days ago
Aer Lingus
Mon, 1 Feb - Mon, 22 Feb
DUB
Dublin
IAD
Washington
£446 Return, found 22 hours ago
£446
Return
found 22 hours ago
Select Aer Lingus flight, departing Mon, 1 Feb from Dublin to Washington, returning Mon, 22 Feb, priced at £446 found 22 hours ago
Scandinavian Airlines
Wed, 13 Jan - Wed, 20 Jan
DUB
Dublin
IAD
Washington
£452 Return, found 11 hours ago
£452
Return
found 11 hours ago
Select Scandinavian Airlines flight, departing Wed, 13 Jan from Dublin to Washington, returning Wed, 20 Jan, priced at £452 found 11 hours ago
KLM
Thu, 12 Nov - Mon, 16 Nov
DUB
Dublin
IAD
Washington
£453 Return, found 1 hour ago
£453
Return
found 1 hour ago
Select KLM flight, departing Thu, 12 Nov from Dublin to Washington, returning Mon, 16 Nov, priced at £453 found 1 hour ago
Air France
Thu, 12 Nov - Mon, 16 Nov
DUB
Dublin
IAD
Washington
£456 Return, found 1 hour ago
£456
Return
found 1 hour ago
Select Air France flight, departing Thu, 12 Nov from Dublin to Washington, returning Mon, 16 Nov, priced at £456 found 1 hour ago

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city centre is 8 minutes. Flights from £637
DCA
Ronald Reagan Washington National
Closest
Average driving time to city centre8 min
Flights from £637

Frequently asked questions

How much does a flight from Dublin (DUB) to Washington, DC (IAD) cost?
You can find one-way and return flights from Dublin (DUB) to Washington, DC (IAD) 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 DUB to IAD ticket fares go up or down.
What is the cheapest month to fly from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest months to fly from DUB to IAD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
There are 2 airlines offering direct flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.):
  • Aer Lingus operates 14 direct flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) every week.
  • United operates 14 direct flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) every week.
How do I find cheap flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.), 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 airline to fly with from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. Aer Lingus offers the most daily flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll find around 4 nonstop flights per day from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.). For even more choices, look at flights that include layovers, as there are approximately 78 connecting flights per day. Some common connection points include Heathrow (LHR), Pearson Intl. (YYZ), and Frankfurt Intl. (FRA).
What is the earliest flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) typically departs around 4:15 AM. This service is operated by Portugalia and TAP Portugal. This is a seasonal service, active in January, February, March, and October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll typically find the most flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) on a Thursday, with around 67 flights available. This gives you a good selection of options for your journey. Major airlines on this route include Aer Lingus, British Airways, and United. Flight options are notably more plentiful on Thursdays compared to other days of the week, offering you greater flexibility.
What are the most popular departure times for flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) are between 12pm and 3pm. Many major carriers, including Aer Lingus, United and British Airways, offer flights during this window. Many travellers prefer this time as it allows for a morning in Dublin and an afternoon arrival in Washington, DC.
How long does it take to fly from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
A non-stop flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) typically takes around 8 hours. This route covers 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 48 minutes. Flights with two or more stops will extend your travel time even further, typically to about 15 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 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
You can fly business class from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.).Airlines that offer business class service on this route include:
  • Icelandair
  • BA Cityflyer
  • Aer Lingus
  • Turkish Airlines
  • Lufthansa
  • Air France
  • KLM
  • Swiss International Air Lines
  • Air Baltic
  • British Airways
  • SAS
  • Air Canada
  • Med View Airlines
  • United
  • Iberia Express
  • Portugalia
  • Hop!
  • Delta
  • American Airlines
  • Edelweiss Air
  • Helvetic Airways

How do I earn miles on a Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) 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.
What airports do you fly into for Washington, DC (IAD) from Dublin (DUB)?
If you're planning to travel to Washington from DUB, you can fly directly into Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Heathrow (LHR), Philadelphia Intl. (PHL), or Frankfurt Intl. (FRA) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) 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 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) 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 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) 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
Dublin
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Return price
£413
Distance
5432 km
Average flight time
3 hours 2 mins

Book with confidence

Compare flights from Dublin to Washington easily and book with confidence

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

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 Dublin (DUB) to Washington Dulles Intl. (IAD)

The easiest way to view the best deals on flights from Dublin to Washington 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 Dublin to Washington Dulles Intl. start at just £413 and range up to £552.  

To find an even better deal, try  

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

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

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Dublin to Washington Dulles Intl. 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 Dublin to Washington easily and book with confidence

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