Cheapest weekends to fly Seattle to Santa Rosa nonstop

We price every nonstop weekend round-trip (2–4 nights, leaving Thu–Sat) on SEA → STS and rank the weekends below by date. Right now the cheapest is Aug 20–24 at $257 round-trip — 47% below this route's typical short-trip price. Updated June 29, 2026.

Sat, Jul 4 → Tue, Jul 7 3 nights

AS Alaska

$597 Check this weekend →

Sat, Jul 11 → Tue, Jul 14 3 nights

AS Alaska 10% below typical

$437 Check this weekend →

Sat, Jul 18 → Tue, Jul 21 3 nights

AS Alaska 29% below typical

$343 Check this weekend →

Fri, Jul 24 → Mon, Jul 27 3 nights

AS Alaska 33% below typical

$327 Check this weekend →

Cheapest weekend

Thu, Aug 20 → Mon, Aug 24 4 nights

AS Alaska 47% below typical

$257 Check this weekend →

Prices are the cheapest nonstop round-trip we found for each weekend, checked within the last 14 days. Fares move — "Check this weekend" re-prices the exact dates live.