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$308 Cheap Flights from Washington (IAD) to Dublin (DUB)

View $308 flight on Sat, Oct 17, 2026Opens in a new window

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

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Cheap Flights from Washington to Dublin (IAD-DUB)

Prices were available within the past 7 days and start at $308 for one-way flights and $642 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Tue, Oct 6 - Wed, Oct 14
IAD
Washington
DUB
Dublin
$642 Roundtrip, found 17 hours ago
$642
Roundtrip
found 17 hours ago
Select Icelandair flight, departing Tue, Oct 6 from Washington to Dublin, returning Wed, Oct 14, priced at $642 found 17 hours ago
Icelandair
Thu, Oct 29 - Tue, Nov 3
IAD
Washington
DUB
Dublin
$645 Roundtrip, just found
$645
Roundtrip
just found
Select Icelandair flight, departing Thu, Oct 29 from Washington to Dublin, returning Tue, Nov 3, priced at $645 just found
Icelandair
Tue, Sep 29 - Wed, Oct 7
IAD
Washington
DUB
Dublin
$649 Roundtrip, found 9 hours ago
$649
Roundtrip
found 9 hours ago
Select Icelandair flight, departing Tue, Sep 29 from Washington to Dublin, returning Wed, Oct 7, priced at $649 found 9 hours ago
Icelandair
Wed, Oct 21 - Wed, Nov 11
IAD
Washington
DUB
Dublin
$651 Roundtrip, found 5 days ago
$651
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, Oct 21 from Washington to Dublin, returning Wed, Nov 11, priced at $651 found 5 days ago
Icelandair
Tue, Oct 20 - Thu, Oct 29
IAD
Washington
DUB
Dublin
$656 Roundtrip, found 4 days ago
$656
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue, Oct 20 from Washington to Dublin, returning Thu, Oct 29, priced at $656 found 4 days ago
TAP Portugal
Tue, Nov 10 - Sun, Nov 22
IAD
Washington
DUB
Dublin
$668 Roundtrip, just found
$668
Roundtrip
just found
Select TAP Portugal flight, departing Tue, Nov 10 from Washington to Dublin, returning Sun, Nov 22, priced at $668 just found
United
Mon, Nov 30 - Fri, Dec 11
IAD
Washington
DUB
Dublin
$688 Roundtrip, found 5 hours ago
$688
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Nov 30 from Washington to Dublin, returning Fri, Dec 11, priced at $688 found 5 hours ago
American Airlines
Wed, Feb 10 - Fri, Feb 19
IAD
Washington
DUB
Dublin
$689 Roundtrip, just found
$689
Roundtrip
just found
Select American Airlines flight, departing Wed, Feb 10 from Washington to Dublin, returning Fri, Feb 19, priced at $689 just found
Aer Lingus
Sun, Jan 24 - Tue, Feb 2
IAD
Washington
DUB
Dublin
$691 Roundtrip, found 2 days ago
$691
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Sun, Jan 24 from Washington to Dublin, returning Tue, Feb 2, priced at $691 found 2 days ago
British Airways
Wed, Jan 13 - Wed, Jan 20
IAD
Washington
DUB
Dublin
$691 Roundtrip, just found
$691
Roundtrip
just found
Select British Airways flight, departing Wed, Jan 13 from Washington to Dublin, returning Wed, Jan 20, priced at $691 just found

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 center is 14 minutes. Flights from $1,176
DUB
Dublin Airport
CheapestClosest
Average driving time to city center14 min
Flights from $1,176

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

April is typically the cheapest month to fly

From $385 - $785 per traveler.

What you need to know for your flight from Washington Dulles Intl. to Dublin

Washington (IAD) to Dublin (DUB) at a glance

Explore a variety of options for flights from Washington Dulles International Airport (IAD) to Dublin Airport (DUB) as you plan your international journey. Compare flight times and flight prices from different airlines to find the itinerary that suits your budget and schedule. Discover Dublin’s iconic attractions and neighborhoods while selecting the best flights from Washington to embark on your adventure.

  • Fastest flight duration: around 6h 45m non-stop
  • Route distance: roughly 3,400 miles (5,470 km)
  • Flights per week: around 15+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $215–$780, depending on seasonality and how far ahead you book

Flights from Washington Dulles International Airport (IAD) to Dublin Airport (DUB)

Based on the latest traveler bookings, here are the top airlines favored for flights from Washington to Dublin, featuring both non-stop and one-stop options. Common layover points include Keflavik International Airport (KEF) with about a 1-hour layover, Heathrow Airport (LHR) with roughly a 2-hour layover, and Humberto Delgado Airport (LIS) with an estimated 1 hour and 45 minutes layover. These choices allow you to balance price, travel time, and cabin class to create your ideal itinerary.

  • Aer Lingus: This full-service airline provides non-stop flights, with one-way ticket prices generally ranging from $220 to $750. It operates around 41% of departures on this route, and the total travel duration is approximately 6 hours and 45 minutes.
  • United: As a full-service airline, United offers both non-stop and one-stop flights, with one-way fares typically falling between $255 and $940. It represents about 36% of departures on this route, with non-stop travel time averaging 6 hours and 45 minutes.
  • American Airlines: Another full-service option, American Airlines provides non-stop and one-stop services, with one-way fares usually ranging from $330 to $940. This carrier makes up roughly 6% of departures, featuring a standard non-stop flight duration of 6 hours and 45 minutes.
  • Icelandair: Known for its one-stop service, Icelandair has one-way fares that typically vary from $215 to $1870. It accounts for about 6% of the departures on this route, with an in-flight duration of 8 hours and 30 minutes, leading to a total journey time of approximately 10 hours and 30 minutes, including layover.
  • British Airways: This full-service airline offers a one-stop service, with one-way fares generally priced between $250 and $545. It constitutes around 3% of the departures, with an in-flight time of 8 hours and 30 minutes and a total journey time of about 10 hours and 30 minutes, factoring in the layover.

Travelers flying from Washington to Dublin have the option to upgrade their flight. Leading airlines for business class include Aer Lingus, United, and Icelandair.

Best time to fly from Washington (IAD) to Dublin (DUB)

The most popular months for travelers flying from Washington to Dublin are March, June, and July, when peak temperatures in Dublin reach up to 59.2°F in July. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 46.8°F. For better deals, February usually offers the lowest average one-way fare around $330. Flight availability peaks in June, with approximately 23 flights per week, making it easier to find convenient departure times. January and February have the fewest flights, with approximately 9 flights per week.

  • Cheapest time to fly: February usually offers good deals with average one-way fare around $330, roughly 29% cheaper than the yearly average.
  • Another budget-friendly time to fly: March typically offers an average one-way fare of around $378.
  • Most flight options: June has the highest number of flights from Washington to Dublin, with approximately 23 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January41.9°F (5.5°C)Low9$387
February42.6°F (5.9°C)Average9$330
March43.9°F (6.6°C)High17$378
April46.8°F (8.2°C)Average16$492
May51.4°F (10.8°C)Average22$471
June56.3°F (13.5°C)High23$725
July59.2°F (15.1°C)High20$496
August58.6°F (14.8°C)Average18$508
September55.9°F (13.3°C)Average20$512
October52.3°F (11.3°C)Average14$380
November46.8°F (8.2°C)Low11$381
December43.5°F (6.4°C)Low12$547

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Washington (IAD) to Dublin (DUB)

  • Washington to Dublin (DCA-DUB): Ronald Reagan Washington National Airport (DCA) is located roughly 23 miles from Washington Dulles International Airport (IAD). On this route, one-way economy ticket prices generally range from $255 to $655, influenced by the season and how far in advance you book. Typically, travelers will find one-stop options, with common layover points including Logan International Airport (BOS) and John F. Kennedy International Airport (JFK). Major airlines serving this route are JetBlue Airways, known for its budget-friendly fares, and American Airlines.

How to find the best prices for flights from Washington (IAD) to Dublin (DUB)

Getting some of the best deals on flights from Washington to Dublin is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, coinciding with when most travelers make their reservations. Afternoon departures (12 PM to 6 PM) typically offer lower prices, although evening flights (6 PM to 12 AM) are the most popular. Additionally, flying on Wednesday generally results in cheaper fares, while Friday is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Dublin Airport from Washington Dulles International Airport

Dublin welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Washington Dulles International Airport is roughly a 40-minute drive (covering about 29 miles) from central Washington. Dublin city center is approximately a 15-minute drive (covering about 8 miles) from Dublin Airport, depending on traffic. Here's how to reach Dublin efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Dublin, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Dublin Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Dublin Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Dublin Airport, several transport options are conveniently located nearby. Dublin Howth Junction Station, a train station, is about 4.9 miles from the airport by car, while Phibsborough Tram Stop, a metro station, is around 6.2 miles away by car. Additionally, 3Arena Seaport, a seaport, is located approximately 6.7 miles from the airport, all easily accessible by car.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) cost?
You can find cheap one-way flights from $308 and cheap return flights from $642 Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) with Expedia. One-way flights generally range between $421 and $4114, and roundtrip flights usually range from $686 to $5240. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
October is the cheapest month to fly from Washington, DC (IAD) to Dublin (DUB), with average round-trip fares around $665. This is about 14% lower than the average price throughout the year, as demand typically decreases after the summer. Other budget-friendly months include January and February.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
Choose from 2 airlines operating direct flights from IAD to DUB:

  • Aer Lingus operates around 13 direct flights from IAD to DUB every week
  • United operates around 13 direct flights from IAD to DUB every week

What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
Iberia is one of the cheapest airlines offering nonstop flights from Washington D.C. (IAD) to Dublin (DUB), with round-trip tickets starting from around $395. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) 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 airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
The best airline to fly with from Washington, DC (IAD) to Dublin (DUB) will differ from traveler to traveler. If you like to fly early, Aer Lingus offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United offers the most daily flights from IAD to DUB, 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 Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
For flights from Washington, DC (IAD) to Dublin (DUB), October and January are the best months to travel, with average return flight prices around $665. These months typically offer lower fares and a chance to experience Dublin with fewer tourists.*Prices based on flights available on Expedia in the last year.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
On average, there are around 3 nonstop flights per day from Washington Dulles Intl. (IAD) to (DUB). For more options, look at flights that include layovers.
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.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
The most popular departure times for flights from Washington, DC (IAD) to Dublin (DUB) are in the late evening, from 9pm to midnight. About 34% of passengers prefer this time window. Many major carriers, including British Airways and United Airlines, offer flights during this window. This timing works well because it allows you to enjoy a full day in Washington before heading to the airport.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
Flying nonstop from IAD to DUB takes around 7 hours, with the route covering approximately 3,396 miles. Flights with a layover typically take 4 hours 30 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
Business class seats are offered on the IAD to DUB route. Airlines that offer business class service on this route include:

  • Lufthansa
  • British Airways
  • Aer Lingus
  • Air Canada
  • United Airlines
  • SAS
  • Swiss International Air Lines
  • KLM
  • Air France
  • Turkish Airlines

First class cabins are available on:

  • Lufthansa
  • United Airlines
  • Swiss International Air Lines

How much is a business class flight from Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB)?
A direct, return business class ticket from Washington, DC (IAD) to Dublin (DUB) typically costs between $5,813 - $7,669. A non-stop, one-way business class flight is usually around $4,088 - $5,678. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Washington, DC (IAD-Washington Dulles Intl.) to Dublin (DUB) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
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) Dublin Vacation Packages 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-Washington Dulles Intl.) to Dublin (DUB)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) 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, American Airlines, Austrian Airlines, British Airways, Delta, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$641
Distance
3395 mi
Average flight time
12 hours 2 mins

Book with confidence

Washington to Dublin Flights

The cheapest times to fly from Washington to Dublin

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 Washington to Dublin are during the month of October. You can find some of the cheapest flights from Washington to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Dublin

Sunday is one of the best days to book for cheap flights from Washington to Dublin: 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 Washington to Dublin

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 Washington to Dublin in 2026. You can also book with separate airlines for your outbound and return journeys, from $308 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 Washington to Dublin 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 Washington to Dublin 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.

 

Washington to Dublin Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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