Route Price Intelligence
Cheap Flights From Seattle to Denver
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Denver typically runs around $273 from Seattle, now just $148 on a nonstop Frontier flight, a 46% drop. Fall dates are wide open, and the shoulder season timing means crisp hiking weather gives way to early ski season. It's a genuinely useful cheap fare rather than a random one.
✓ 13 date combinations found at this price
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Best Time to Fly from Seattle to Denver
The cheapest time to fly from Seattle to Denver is typically October, when fares average around $164. The most expensive month tends to be July at around $350. For the best deals, consider flying in October, August, September.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route