$79 Cheap Delta flights Denver (DEN) to Seattle (SEA)

View $79 flight on Sat, Aug 16, 2025Opens in a new window

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$79 Cheap Delta flights Denver (DEN) to Seattle (SEA)

Prices were available within the past 7 days and start at $79 for one-way flights and $158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 22 - Sat, Oct 25
DEN
Denver
SEA
Seattle
$158 Roundtrip, found 1 hour ago
$158
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Oct 22 from Denver to Seattle, returning Sat, Oct 25, priced at $158 found 1 hour ago
Flights from Denver (DEN) to Seattle (SEA)
Origin airport
Denver Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1022 mi
Average flight time
1 hour 55 mins

Frequently asked questions

How much is a Delta Air Lines flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
Scoring cheap one-way Delta Air Lines flights from DEN to SEA from $79 on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $158 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to SEA with Delta Air Lines?
Delta Air Lines flights to Seattle tend to be more affordable in the low-season months of January and February. Whether you're searching for a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) with Delta Air Lines?
To find cheap Delta Air Lines fares from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the price you pay. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
Choose from one of Delta Air Lines's 21 direct weekly flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA). To see what's available, enter your dates, origin and destination and hit search. Then select the "Nonstop" and "Airline" filters.
How long does it take to fly from DEN to SEA with Delta Air Lines?
Leave Denver Intl. Airport (DEN) for Seattle - Tacoma Intl. Airport (SEA) on a direct Delta Air Lines flight, and you'll be in the air for about 3h 14m.
Which day of the week has the most Delta Air Lines flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
If you're looking for flexibility, Saturday offers the most choice for Delta Air Lines flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA). You can pick from 3 different departures.
What is the earliest Delta Air Lines flight from DEN to SEA?
The earliest flight from DEN to SEA with Delta Air Lines leaves at 6:25AM UTC-7. You'll touch down at 8:39AM UTC-8. The final Delta Air Lines flight of the day leaves at 7:50PM UTC-7 and arrives at 10:07PM UTC-8. With around 20% fewer cancellations for morning departures, jetting out early is generally the smartest choice.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Seattle?
Delta Air Lines flights from Denver Intl. Airport (DEN) to Seattle arrive at Seattle - Tacoma Intl. Airport (SEA). This is the main entry point to this destination.
Why fly with Delta Air Lines from DEN to SEA?
Heading from DEN to SEA with Delta Air Lines comes with a variety of perks, including a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That's in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Delta Air Lines fly from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
For the Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) route, Delta Air Lines typically uses Embraer 175 and Airbus A220-300 planes. Keep in mind that last-minute changes can occur for operational reasons, so your flight could be on another aircraft.
Can I change or cancel my Delta Air Lines flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
Depending on the ticket type you purchased, a fee generally applies if you change or cancel your booking more than 24 hours after it's been confirmed. To secure tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes while searching for flights. To learn more about modifying or canceling your reservation, go to "Trips," select your flight and tick "Manage Booking."

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