$360 Cheap Flights from Dublin (DUB) to Washington (IAD)

View $360 flight on Wed, Nov 19, 2025Opens in a new window

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

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Cheap Flights from Dublin to Washington (DUB-IAD)

Prices were available within the past 7 days and start at $360 for one-way flights and $409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, Nov 12 - Mon, Nov 17
DUB
Dublin
IAD
Washington
$409 Roundtrip, found 4 days ago
$409
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Wed, Nov 12 from Dublin to Washington, returning Mon, Nov 17, priced at $409 found 4 days ago
TAP Portugal
Tue, Oct 14 - Wed, Oct 29
DUB
Dublin
IAD
Washington
$414 Roundtrip, found 5 days ago
$414
Roundtrip
found 5 days ago
Select TAP Portugal flight, departing Tue, Oct 14 from Dublin to Washington, returning Wed, Oct 29, priced at $414 found 5 days ago
Scandinavian Airlines
Wed, Nov 5 - Wed, Nov 12
DUB
Dublin
IAD
Washington
$424 Roundtrip, found 1 hour ago
$424
Roundtrip
found 1 hour ago
Select Scandinavian Airlines flight, departing Wed, Nov 5 from Dublin to Washington, returning Wed, Nov 12, priced at $424 found 1 hour ago
Scandinavian Airlines
Wed, Oct 29 - Mon, Nov 3
DUB
Dublin
IAD
Washington
$426 Roundtrip, found 6 days ago
$426
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Wed, Oct 29 from Dublin to Washington, returning Mon, Nov 3, priced at $426 found 6 days ago
Scandinavian Airlines
Fri, Nov 14 - Mon, Nov 17
DUB
Dublin
IAD
Washington
$427 Roundtrip, found 3 days ago
$427
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Fri, Nov 14 from Dublin to Washington, returning Mon, Nov 17, priced at $427 found 3 days ago
Scandinavian Airlines
Mon, Sep 29 - Mon, Oct 6
DUB
Dublin
IAD
Washington
$431 Roundtrip, found 2 days ago
$431
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Mon, Sep 29 from Dublin to Washington, returning Mon, Oct 6, priced at $431 found 2 days ago
Aer Lingus
Wed, Sep 3 - Wed, Sep 10
DUB
Dublin
IAD
Washington
$435 Roundtrip, found 16 hours ago
$435
Roundtrip
found 16 hours ago
Select Aer Lingus flight, departing Wed, Sep 3 from Dublin to Washington, returning Wed, Sep 10, priced at $435 found 16 hours ago
Aer Lingus
Sun, Sep 21 - Sun, Sep 28
DUB
Dublin
IAD
Washington
$437 Roundtrip, found 1 day ago
$437
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Sun, Sep 21 from Dublin to Washington, returning Sun, Sep 28, priced at $437 found 1 day ago
Icelandair
Thu, Oct 2 - Tue, Oct 7
DUB
Dublin
IAD
Washington
$460 Roundtrip, found 1 day ago
$460
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Oct 2 from Dublin to Washington, returning Tue, Oct 7, priced at $460 found 1 day ago
British Airways
Thu, Nov 20 - Sat, Nov 29
DUB
Dublin
IAD
Washington
$517 Roundtrip, just found
$517
Roundtrip
just found
Select British Airways flight, departing Thu, Nov 20 from Dublin to Washington, returning Sat, Nov 29, priced at $517 just found

Find the cheapest month to fly from Dublin (DUB) to Washington (IAD)

March is typically the cheapest month to fly

From $281 - $704 per traveler.

Graph displaying average flight prices per month

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 center is 8 minutes. Flights from $793
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $793
Flights from Dublin (DUB) to Washington (IAD)
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
Roundtrip price
$409
Distance
3395 mi
Average flight time
2 hours 58 mins

Dublin to Washington Flights

The cheapest times to fly from Dublin to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dublin to Washington are during the month of November. You can find some of the cheapest flights from Dublin to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dublin to Washington

Sunday is one of the best days to book for cheap flights from Dublin to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Dublin to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dublin to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $360 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dublin to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dublin to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD) cost?
Cheap round-trip flights from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD) start from $527. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aer Lingus flight leaving DUB on August 1 2025 and touching down at IAD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from DUB to IAD?
The cheapest flights from DUB to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
When departing from Dublin Airport (DUB), you can catch a nonstop flight to Washington Dulles Intl. Airport (IAD) with Aer Lingus.
What is the cheapest airline that flies from DUB to IAD?
At the moment, the cheapest carrier offering one-way flights from DUB to IAD is Aer Lingus. You can jet off on this route from $665. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DUB on October 18 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
On average, there's only 1 nonstop flight taking off from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD) per day. If this doesn't work with your itinerary, think about flights with a layover. Just filter your search results on Expedia to include one or two stops to find a better alternative.
What are the most popular departure times for flights from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
The 12 PM departures from DUB to IAD are typically the busiest. They can also be more expensive. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from DUB to IAD?
Fly on a Friday if you're after the best selection of flights from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
The first flight of the day out of Dublin Airport (DUB) is at around 12:30PM UTC+0. Hop on this flight and you'll reach Washington Dulles Intl. Airport (IAD) at approximately 3:40PM UTC-5. The total time in the air is 8h 10m.
How long does it take to fly from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
The average flight time from DUB to IAD is 8 hours and 10 minutes, covering a distance of 3,400 mi.
What airline has the least delays from DUB to IAD?
Lufthansa has the strongest track record for on-time direct flights from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD), with an on-time rating of 86%. Use the Expedia App to see your flight schedule before you leave and receive notifications about any trip changes.
What is the best time to fly from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) on schedule, select a flight that takes off from Dublin Airport (DUB) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Dublin Airport (DUB)?
Compare your flight options from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD). This is the only Washington airport you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until right before your break to book a ticket from DUB to IAD generally means paying more. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible to maximize your chances of landing a bargain.
Is it cheaper to book a DUB to IAD flight and hotel package?
Securing a DUB to IAD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our extensive range of accommodations and then add activities, flights 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 Airport (DUB) to Washington Dulles Intl. Airport (IAD)?
Typically, you're able to cancel or reschedule your DUB to IAD flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further details, go to our Customer Service portal.

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