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Cheap flights from Denver to Seattle

Fares from $106 in December 2026. Compare every month below, then book with the site you like.

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Cheapest Denver to Seattle fares by month

Lowest price per person found in recent searches. Prices change often and are checked when you book.

Denver to Seattle at a glance

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Frequently asked questions

How much is a flight from Denver to Seattle?
The cheapest fare we found recently is $106 per person, departing Dec 25 on Frontier. Prices change daily, so search your dates to see today's fares.
What is the cheapest month to fly from Denver to Seattle?
December 2026 is currently the cheapest month, from $106. November 2026 is the most expensive, from $119.
Are there direct flights from Denver to Seattle?
Yes. Recent searches found nonstop fares from $106.
Which airlines fly from Denver to Seattle?
The cheapest recent fares on this route were on Frontier.
How long is the flight from Denver to Seattle?
Denver and Seattle are about 1,022 miles apart, so a nonstop flight takes roughly 2h 45m. Flights with a stop take longer, depending on the connection.
How do I find the cheapest flight from Denver to Seattle?
Search your dates on Gotoesy. We list fares from several booking sites sorted cheapest first, show nearby dates when your day has no saved fare, and send you straight to the seller to book.

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