Cheap Flights from Delta (DTA) to Seattle (SEA)

Popular airlines from Delta, UT (DTA) to Seattle

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Frequently asked questions

How much does a flight from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight or cheap return flight from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from DTA to SEA is , when there's less demand. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline that'll fly you from DTA to SEA, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DTA to SEA?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA)?
Choose a flight from Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**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 Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from DTA to SEA are usually more expensive. To lock in the best prices, start searching for flights ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap fare right before your trip.
Is it cheaper to book a DTA to SEA flight and hotel package?
Opting for a DTA to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of hotels and then add car rentals, activities 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 Delta, UT (DTA) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your DTA to SEA flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Delta
Destination airport
Seattle - Tacoma Intl.
Distance
741 mi

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Delta to Seattle Flights

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

 

The best time to book a flight from Delta to Seattle

Sunday is one of the best days to book for cheap flights from Delta 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 Delta 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 Delta to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Delta 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 Delta 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.

 

Delta to Seattle Flights

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*Available to One Key members.