$482 Cheap Flights from Dublin (DUB) to Seattle (SEA)
Popular airlines from Dublin Airport (DUB) to Seattle-Tacoma International Airport (SEA)
LufthansaLufthansa
IberiaIberia
IcelandairIcelandair
Turkish AirlinesTurkish Airlines
KLMKLM
Brussels AirlinesBrussels Airlines
American AirlinesAmerican Airlines
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Cheap Flights from Dublin to Seattle (DUB-SEA)
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
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Dublin (DUB) to Seattle (SEA) at a glance
Embark on an international long-haul journey from Dublin (DUB) to Seattle (SEA) with a range of airlines at your disposal. Explore various options from both full-service and low-cost carriers to discover the itinerary that best aligns with your budget, schedule, and travel preferences while you uncover Seattle's iconic landmarks and vibrant neighborhoods. Get all the essential information for flights from Dublin Airport (DUB) to Seattle-Tacoma International Airport (SEA).
- Fastest flight duration: around 9h 45m non-stop
- Route distance: roughly 4,500 miles (7,240 km)
- Flights per week: around 9 departures on average
- Typical fares (one-way): economy tickets often range from $345–$1375, depending on seasonality and how far ahead you book
Flights from Dublin Airport (DUB) to Seattle - Tacoma International Airport (SEA)
Recent traveler bookings reveal the top airlines for flights from Dublin to Seattle, featuring both non-stop and one-stop options. Popular layover points include Keflavik International Airport (KEF) with approximately a 3-hour layover, Calgary International Airport (YYC) at around 3 hours and 30 minutes, and Heathrow Airport (LHR) with about a 2-hour and 30-minute layover. This variety allows you to mix and match factors like price, total travel time, and cabin class to discover the best travel itinerary.
- Aer Lingus: This full-service airline provides both non-stop and one-stop options, with one-way ticket prices generally falling between $595 and $1715. It operates about 43% of flights on this route, with a standard non-stop travel duration of 9 hours and 45 minutes.
- Icelandair: Offering one-stop flights, this full-service carrier features one-way fares ranging from $350 to $1980. It represents around 23% of departures on this route, with an in-flight duration of 10 hours and 45 minutes and a total travel time of approximately 13 hours and 45 minutes (including layover).
- American Airlines: This full-service airline provides both non-stop and one-stop services, with one-way prices typically between $345 and $2345. Holding about 20% of departures on this route, travelers can expect a typical non-stop flight time of 9 hours and 45 minutes.
- WestJet: As a low-cost airline, WestJet offers one-stop service with one-way fares usually ranging from $345 to $875. It makes up about 6% of flights on this route, featuring an in-flight time of 10 hours and 45 minutes and a total trip duration of around 13 hours and 45 minutes (including layover).
- British Airways: This full-service carrier provides one-stop options with one-way fares generally between $665 and $1140. It accounts for roughly 3% of departures on this route, with a flight time of 10 hours and 45 minutes and an overall journey time of about 13 hours and 45 minutes (including layover).
Travelers have the option to upgrade their flights from Dublin to Seattle. Leading airlines for business class include American Airlines, Icelandair, and Aer Lingus, providing enhanced service for a more comfortable journey.
Best time to fly from Dublin (DUB) to Seattle (SEA)
The most popular months for travelers flying from Dublin to Seattle are March, July, and August, when peak temperatures in Seattle reach up to 67.5°F in August. If you prefer quieter travel, consider February, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 40.5°F. For better deals, December usually offers the lowest average one-way fare around $680. Flight availability peaks in January and July, with approximately 11 flights per week, making it easier to find convenient departure times. August has the fewest flights, with approximately 7 flights per week.
- Cheapest time to fly: December usually offers good deals with average one-way fare around $680, roughly 30% cheaper than the yearly average.
- Most flight options: January and July have the highest number of flights from Dublin to Seattle, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 40.3°F (4.6°C) | Average | 11 | $1118 |
| February | 40.5°F (4.7°C) | Low | 8 | $984 |
| March | 43.9°F (6.6°C) | High | 8 | $890 |
| April | 48.6°F (9.2°C) | Average | 8 | $973 |
| May | 55.8°F (13.2°C) | Average | 9 | $831 |
| June | 61.0°F (16.1°C) | Average | 10 | $844 |
| July | 67.1°F (19.5°C) | High | 11 | $841 |
| August | 67.5°F (19.7°C) | High | 7 | $1025 |
| September | 61.3°F (16.3°C) | Average | 8 | $1088 |
| October | 52.7°F (11.5°C) | Low | 8 | $1146 |
| November | 44.2°F (6.8°C) | Low | 8 | $1360 |
| December | 39.2°F (4.0°C) | Average | 9 | $680 |
*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 routes from Dublin (DUB) to Seattle (SEA)
How to find the best prices for flights from Dublin (DUB) to Seattle (SEA)
Getting some of the best deals on flights from Dublin to Seattle is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually 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 more popular. Additionally, flying on Sunday generally provides cheaper options, even though Friday is the busiest travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- 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.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- 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 Seattle - Tacoma International Airport from Dublin Airport
Seattle 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. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
- Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma 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 Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles away on foot, while Tukwila Station, a train station, is situated approximately 4.3 miles from the airport and is typically reached by car.
Dublin to Seattle Flights
The cheapest times to fly from Dublin to Seattle
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 Seattle are during the month of January. You can find some of the cheapest flights from Dublin to Seattle with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Dublin to Seattle
Sunday is one of the best days to book for cheap flights from Dublin to Seattle: 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 Seattle
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 Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $482 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 Seattle 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 Seattle 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 (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $482 and cheap return flights $571 Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights typically cost between $655 and $3998, and return flights often range between $723 and $5279. 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 Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from DUB to SEA 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly direct from DUB to SEA on Aer Lingus, with around 7 flights per week.
What is the cheapest airline that flies from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Iberia is one of the cheapest airlines offering nonstop flights from Dublin (DUB) to Seattle, WA (SEA), with round-trip tickets starting from around $1,044. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Dublin (DUB) to Seattle, WA (SEA) 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, Aer Lingus typically offers the lowest fares. Aer Lingus offers the most daily flights from DUB to SEA, 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 Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 1 nonstop flights per day from (DUB) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Dublin (DUB) to Seattle - Tacoma Intl. (SEA) usually departs at around 5:00 AM, operated by Lufthansa and Condor. This seasonal service is active in February and December, giving you an early start to your travels to Seattle. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Dublin (DUB) to Seattle - Tacoma Intl. (SEA) are in the late morning, from 9am to 12pm. About 34% of passengers prefer this time window. Many major carriers, including United Airlines, British Airways, and Delta, offer flights during this window. This timing works well because it allows you to start your journey refreshed after a good night's sleep.
How long does it take to fly from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying nonstop from DUB to SEA takes around 9 hours 50 minutes, with the route covering approximately 4,527 miles. Flights with a layover typically take 7 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 Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for DUB to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A non-stop, one-way business class flight from Dublin (DUB) to Seattle, WA (SEA) is usually around $2,565 - $3,032. 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 Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma 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 Seattle from DUB (DUB)?
From DUB (DUB), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Frankfurt Intl. (FRA), Heathrow (LHR), Franz Josef Strauss Intl. (MUC) before reaching Seattle. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle 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 Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma 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 Airport |
|---|---|
Destination airport | Seattle-Tacoma International Airport |
Distance | 4,526 miles away |
Airlines serving | Lufthansa, Iberia, Icelandair, Turkish Airlines, KLM, Brussels Airlines, American Airlines, Air France, United, Delta, Air Canada, Aer Lingus, Finnair, British Airways, JetBlue Airways, SAS, WestJet |
Popular airline | Lufthansa |
Roundtrip price | $571 |
Average flight time | 9 hours 45 mins |