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$510 Cheap Flights from Dublin (DUB) to Washington (IAD)

View $510 flight on Mon, Dec 7, 2026Opens 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 $510 for one-way flights and $556 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, Jan 22 - Sun, Jan 24
DUB
Dublin
IAD
Washington
$556 Roundtrip, found 2 days ago
$556
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Jan 22 from Dublin to Washington, returning Sun, Jan 24, priced at $556 found 2 days ago
Icelandair
Thu, Jan 14 - Wed, Jan 20
DUB
Dublin
IAD
Washington
$557 Roundtrip, found 2 hours ago
$557
Roundtrip
found 2 hours ago
Select Icelandair flight, departing Thu, Jan 14 from Dublin to Washington, returning Wed, Jan 20, priced at $557 found 2 hours ago
Icelandair
Thu, Oct 29 - Thu, Nov 5
DUB
Dublin
IAD
Washington
$565 Roundtrip, found 4 days ago
$565
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Oct 29 from Dublin to Washington, returning Thu, Nov 5, priced at $565 found 4 days ago
Icelandair
Tue, Nov 24 - Sun, Dec 6
DUB
Dublin
IAD
Washington
$574 Roundtrip, found 3 hours ago
$574
Roundtrip
found 3 hours ago
Select Icelandair flight, departing Tue, Nov 24 from Dublin to Washington, returning Sun, Dec 6, priced at $574 found 3 hours ago
Icelandair
Thu, Oct 1 - Mon, Oct 5
DUB
Dublin
IAD
Washington
$578 Roundtrip, found 1 day ago
$578
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Oct 1 from Dublin to Washington, returning Mon, Oct 5, priced at $578 found 1 day ago
British Airways
Thu, Jan 14 - Wed, Jan 20
DUB
Dublin
IAD
Washington
$593 Roundtrip, found 2 hours ago
$593
Roundtrip
found 2 hours ago
Select British Airways flight, departing Thu, Jan 14 from Dublin to Washington, returning Wed, Jan 20, priced at $593 found 2 hours ago
Aer Lingus
Tue, Nov 24 - Mon, Nov 30
DUB
Dublin
IAD
Washington
$603 Roundtrip, found 22 hours ago
$603
Roundtrip
found 22 hours ago
Select Aer Lingus flight, departing Tue, Nov 24 from Dublin to Washington, returning Mon, Nov 30, priced at $603 found 22 hours ago
American Airlines
Tue, Nov 24 - Mon, Nov 30
DUB
Dublin
IAD
Washington
$627 Roundtrip, found 22 hours ago
$627
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Tue, Nov 24 from Dublin to Washington, returning Mon, Nov 30, priced at $627 found 22 hours ago
Scandinavian Airlines
Tue, Nov 24 - Mon, Nov 30
DUB
Dublin
IAD
Washington
$629 Roundtrip, found 22 hours ago
$629
Roundtrip
found 22 hours ago
Select Scandinavian Airlines flight, departing Tue, Nov 24 from Dublin to Washington, returning Mon, Nov 30, priced at $629 found 22 hours ago
Iberia
Wed, Nov 18 - Thu, Nov 26
DUB
Dublin
IAD
Washington
$629 Roundtrip, found 4 hours ago
$629
Roundtrip
found 4 hours ago
Select Iberia flight, departing Wed, Nov 18 from Dublin to Washington, returning Thu, Nov 26, priced at $629 found 4 hours 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. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $751
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $751

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

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

Travel between Dublin (DUB) and Washington (IAD) with a selection of airlines catering to this international long-haul route. Evaluate options from full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel plans as you delve into Washington's iconic attractions and neighborhoods. Here, you’ll find essential details for flights from Dublin Airport (DUB) to Washington Dulles International Airport (IAD).

  • Fastest flight duration: around 8 hours non-stop
  • Route distance: roughly 3,400 miles (5,470 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $250–$1110, depending on seasonality and how far ahead you book

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

Based on the latest traveler bookings, here are the top airlines preferred for flights from Dublin to Washington, primarily for non-stop and one-stop options. Popular layover points include Keflavik International Airport (KEF) with a layover of about 2 hours and 45 minutes, Heathrow Airport (LHR) at around 2 hours and 15 minutes, and Humberto Delgado Airport (LIS) with a layover of about 3 hours and 30 minutes. These choices allow you to balance price, total travel time, and cabin class to find your ideal itinerary.

  • Aer Lingus: This full-service airline provides non-stop flights, with one-way ticket prices generally ranging from $250 to $2200. It represents around 62% of departures on this route, with a total travel duration of 8 hours.
  • American Airlines: Offering a mix of non-stop, one-stop, and multi-stop flights, this full-service carrier has one-way fares that usually fall between $420 and $3250. It accounts for about 10% of the departures here, with a non-stop flight time of 8 hours.
  • Icelandair: Providing one-stop services, this full-service airline has one-way fares typically between $250 and $1285. It makes up roughly 8% of departures on this route, with an in-flight duration of 9 hours and 15 minutes and a total journey time of around 12 hours due to layover.
  • United: This full-service airline offers non-stop flights, with one-way fares generally ranging from $330 to $2945. It constitutes approximately 8% of the departures on this route, with a total travel time of 8 hours.
  • Iberia: As a full-service carrier, Iberia provides non-stop services, with one-way fares typically between $515 and $1325. It accounts for about 4% of departures on this route, with an overall journey time of 8 hours.

Travelers flying from Dublin to Washington can opt for an upgraded experience. Leading airlines for business class include Aer Lingus, American Airlines, and Icelandair, offering enhanced seating and service.

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

The most popular months for travelers flying from Dublin to Washington are January, July, and September, when peak temperatures in Washington reach up to 78.4°F in July. If you prefer quieter travel, consider November, the least busy time to visit with temperatures around 46.2°F and typically the lowest average one-way fare (around $517). Flight availability peaks in September, with approximately 13 flights per week, making it easier to find convenient departure times. February and April have the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: November usually offers good deals with average one-way fare around $517, roughly 36% cheaper than the yearly average.
  • Another budget-friendly time to fly: December typically offers an average one-way fare of around $549.
  • Most flight options: September has the highest number of flights from Dublin to Washington, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January33.6°F (0.9°C)High9$953
February36.9°F (2.7°C)Average7$597
March44.4°F (6.9°C)Average10$685
April55.0°F (12.8°C)Average7$896
May64.6°F (18.1°C)Average9$750
June73.2°F (22.9°C)Average9$796
July78.4°F (25.8°C)High10$990
August76.3°F (24.6°C)Low8$1126
September69.6°F (20.9°C)High13$910
October58.5°F (14.7°C)Average8$999
November46.2°F (7.9°C)Low8$517
December39.2°F (4.0°C)Low8$549

*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 Dublin (DUB) to Washington (IAD)

  • Dublin to Washington (DUB-DCA): Ronald Reagan Washington National Airport (DCA) is located roughly 23 miles from Washington Dulles International Airport (IAD). One-way economy ticket prices for this journey generally fall between $425 and $1020, influenced by the time of year and how far in advance you book. This route is predominantly served by one-stop flights, with frequent layovers at Bradley International Airport (BDL) and Logan International Airport (BOS). Major airlines operating on this route include Aer Lingus and American Airlines. Additionally, travelers can choose business class options for enhanced service.

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

Getting some of the best deals on flights from Dublin to Washington 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 typically found when booking 2 to 8 weeks in advance, although most travelers tend to book at least 2 months ahead. Morning departures from 5 AM to 12 PM often offer lower prices, while afternoon flights from 12 PM to 6 PM are the most popular. Additionally, flying on Tuesday generally provides cheaper rates, while Sunday remains 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 Washington Dulles International Airport from Dublin Airport

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

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Washington, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Washington Dulles International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Washington Dulles International 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 Washington Dulles International Airport, the Washington Dulles International Airport Metrorail Station, a metro station located about 0.2 miles away, is easily accessible on foot.

Frequently asked questions

How much does a flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $510 and cheap return flights from $556 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights generally range between $630 and $3926, and roundtrip flights usually range from $610 to $5728. 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 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) 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 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest month to fly from DUB to IAD is January 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're 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.)?
2 airlines operate nonstop service from DUB to IAD:

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

What is the cheapest airline that flies from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
Iberia is one of the cheapest airlines offering nonstop flights from Dublin (DUB) to Washington, DC (IAD) with round-trip tickets starting from around $606. 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 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) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Aer Lingus typically offers the lowest fares. Aer Lingus offers the most daily flights from DUB to IAD, 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 can find approximately 3 nonstop flights per day from (DUB) to Washington Dulles Intl. (IAD). For more options, look at flights that include layovers.
What is the earliest flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Dublin (DUB) to Washington Dulles Intl. (IAD) typically departs at around 4:15 AM, operated by NI and TAP Portugal. This seasonal service helps you arrive in Washington, DC early to make the most of your day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
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) are from 12pm to 3pm. About 32% of passengers prefer this time window. Many major carriers, including Aer Lingus, British Airways and United, offer flights during this window. This timing works well because it allows you to arrive in Washington, DC with plenty of time to settle in for the evening.
How long does it take to fly from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
A nonstop flight from DUB to IAD typically takes around 8 hours 20 minutes, covering approximately 3,396 miles. Connecting flights on this route usually add 3 hours 30 minutes to your travel time. 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 Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
Business class seats are offered on the DUB to IAD route. Airlines that offer business class service on this route include:

  • Aer Lingus
  • British Airways
  • Turkish Airlines
  • Lufthansa
  • Air Canada
  • United Airlines
  • Swiss International Air Lines
  • Icelandair
  • Helvetic Airways
  • KLM

How much is a business class flight from Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.)?
A non-stop, one-way business class flight from Dublin (DUB) to Washington, DC (IAD) is usually around $2,794 - $4,147. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Dublin (DUB) to Washington, DC (IAD-Washington Dulles Intl.) 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 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 from DUB (DUB)?
When traveling from DUB (DUB) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Heathrow (LHR), Charlotte-Douglas Intl. (CLT), Adolfo Suarez Madrid-Barajas (MAD) 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.) Fairfax County 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 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
Roundtrip price
$555
Distance
3395 mi
Average flight time
3 hours 2 mins

Book with confidence

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 January. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $510 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.

 

Dublin to Washington Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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