$551 Cheap Flights from Dunedin (DUD) to Seattle (SEA)

View $551 flight on Wed, Nov 5, 2025Opens in a new window

Popular airlines from Dunedin (DUD-Dunedin Intl.) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Dunedin to Seattle (DUD-SEA)

Prices were available within the past 7 days and start at $551 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Dunedin (DUD) to Seattle (SEA)
Origin airport
Dunedin Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
7629 mi

Dunedin to Seattle Flights

The cheapest times to fly from Dunedin 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 Dunedin to Seattle are during the month of . You can find some of the cheapest flights from Dunedin to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dunedin to Seattle

Sunday is one of the best days to book for cheap flights from Dunedin 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 Dunedin 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 Dunedin to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $551 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 Dunedin 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 Dunedin 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 Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight from $551 or cheap return flight from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from DUD to SEA is , when demand is low. Off-peak months are often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from DUD to SEA. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA)?
There are no daily direct flights departing from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from DUD to SEA?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA)?
To arrive at Seattle - Tacoma Intl. Airport (SEA) on schedule, book a flight that leaves Dunedin Intl. Airport (DUD) before 3 PM. The chance 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.
Is it cheaper to buy a plane ticket from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until just before your departure to book your flight from DUD to SEA often results in higher prices. While you may come across some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans for a better chance of getting a bargain.
Is it cheaper to book a DUD to SEA flight and hotel package?
Opting for a DUD to SEA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dunedin Intl. Airport (DUD) to Seattle - Tacoma Intl. Airport (SEA)?
You can usually reschedule or cancel your DUD to SEA flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.