The Denver–Seattle route
Denver International (DEN) to Seattle-Tacoma International (SEA) covers about 1,023 miles. Nonstop DEN–SEA is often on the schedule, about 2.5 hours airborne over 1,023 miles. This page is a US-market guide in USD — not a ticket and not a live calendar.
For DEN–SEA we show about $109 on the low end and around $195 as a more typical one-way economy total, USD, last reviewed August 2026. A $109 one-way is a sale-shaped guide, not a fare you can screenshot and demand. Taxes, bags, and seats change what you pay on the seller site.
Search DEN to SEA on Azurovia, compare airline-direct and travel-site totals on the same flights, then finish with the seller. We do not ticket. Keep their confirmation for changes.
Distance and time DEN–SEA
Great-circle distance DEN–SEA is about 1,023 miles. Block time on a nonstop is typically near 2.5 hours; wind, routing, and which runway you use still move the clock. Connections on the same city pair add layover time on top of that flying.
Seattle is about 1 hour behind Denver on standard time (America/Denver vs America/Los_Angeles). Arrival clocks on SEA are local. That matters more on this pair than on a same-zone hop.
When DEN–SEA has a nonstop, that is usually the cleanest product. One-stop options still appear — they are worth opening only if the USD total is materially lower after you count the extra ground time.
Airports for Denver to Seattle
Both ends are in the United States: Denver International (DEN) to Seattle-Tacoma International (SEA). This is not an international itinerary, so the usual domestic bag and ID rules apply at the seller. Alternate metro airports can still beat this pair on price.
DEN is the only origin code we list in this metro. SEA is the arrival code we treat as primary for Seattle. A cheaper nearby airport only wins if the transfer still fits your plan. Search with “include nearby airports” when you want those codes in one results list.
Airport pages: DEN Denver International · SEA Seattle-Tacoma International
City hubs: Flights from Denver · Flights to Seattle
Bags on DEN–SEA
US domestic Denver–Seattle inventory often includes basic economy. Cabin and checked bags may be extra — the result cards say so when we have that fact. A cheaper headline fare can lose once you add a carry-on.
Airlines often shown
Southwest is among the names that commonly appear on DEN–SEA, alongside Spirit, Frontier, Alaska Airlines. That is who often operates or sells this city pair in our catalog, not a daily guarantee. Live search is the inventory that exists for your dates.
When people fly
On Denver–Seattle, demand is often softer in Jan and Feb, with Sep and Oct also worth checking. US holidays still reprice this pair. Move a day on the results strip before you assume the first date you typed is the cheapest.
Save this route
We’ll email you if live fares on this city pair drop. Search with dates for a specific trip.
Questions about this city pair
How long is the flight from Denver to Seattle?
Nonstop DEN–SEA is typically about 2.5 hours over roughly 1,023 miles. Connections take longer; compare total trip time on the results page.
When are Denver to Seattle fares often lower?
Demand is usually softer in Jan and Feb on this route, but live prices move daily. Search a few nearby dates rather than assuming a season is always cheapest.
Which airlines fly Denver to Seattle?
Sellers commonly show Southwest, Spirit, Frontier, Alaska Airlines on this city pair. The set on any given day depends on schedule and which travel sites return a fare.
What do Denver–Seattle tickets usually cost?
Guide one-way economy totals cluster around $195, with sales near $109, in USD. Those are not a quote — live search is the price that matters.
Is DEN–SEA the only airport pair for this trip?
This guide uses DEN and SEA as the primary codes. If a seller offers another airport, it will show on live results when you include nearby airports.
Do I book Denver–Seattle with Azurovia?
No. Azurovia is a US metasearch. You compare airline and travel-site totals here, then complete the ticket with the seller you choose.
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