Is there a nonstop flight from Santa Rosa (STS) to Denver (DEN)?

Yes. Southwest operates a nonstop STS–DEN service in the summer season only.

How often do flights leave STS for DEN?

About 5× weekly — 4.7 departures a week in August 2026, compared with 0 a week in February 2026.

Nonstop route

Santa Rosa to Denver nonstop

Yes: Southwest flies direct from Santa Rosa (STS) to Denver (DEN) about 5 times a week, in the summer season only.

STSSanta Rosa

✈

DENDenver

Southwest

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5× weekly4.7 flights a week

Summer onlyflown 2 of the last 12 months

—no fare sample

977miles · about 2 hr 30 min

Route detail

Santa Rosa to Denver in numbers

Measured from US DOT filings, not estimated from distance.

Distance and flight time: 977 miles nonstop, about 2 hr 30 min gate to gate. Flight time is an estimate from the great-circle distance; the filings carry distance, not scheduled elapsed time.
Seasonality: Flew May 2026 and Aug 2026, up to 5 flights a week, with no flights the rest of the year.
Sep 2025: no regular flights
Oct 2025: no regular flights
Nov 2025: no regular flights
Dec 2025: no regular flights
Jan 2026: no regular flights
Feb 2026: no regular flights
Mar 2026: no regular flights
Apr 2026: no regular flights
May 2026: 1 flights a week
Jun 2026: no regular flights
Jul 2026: no regular flights
Aug 2026: 5 flights a week
Flights a week by month, Sep 2025 to Aug 2026, from US DOT on-time filings.
Who operates the flights: Southwest is the only carrier filing this pair.
Fares: No fare sample is published for this route, so we show no price. Flight search will have live numbers.

Flying the other way? Denver to Santa Rosa nonstop.

Other airports near Santa Rosa with nonstops to Denver

Within about 100 miles of Charles M. Schulz Sonoma County Airport

OAK to DENOakland San Francisco Bay Airport, Oakland, CA63 miles from STS · about 5 times a day · Southwest SFO to DENSan Francisco International Airport, San Francisco, CA66 miles from STS · about 16 times a day · United, Southwest and Frontier SMF to DENSacramento International Airport, Sacramento, CA67 miles from STS · about 11 times a day · United, Southwest, Frontier and SkyWest SJC to DENNorman Y. Mineta San Jose International Airport, San Jose, CA93 miles from STS · about 7 times a day · Southwest and United

Also nonstop from Santa Rosa (STS)

Busiest other routes out of the same airport

San Diego (SAN) about 4 times a day
Burbank (BUR) about 3 times a day
Phoenix (PHX) about 2 times a day
Santa Ana (SNA) about 2 times a day
Portland (PDX) about 2 times a day
Los Angeles (LAX) about 13 times a week
Seattle (SEA) about 12 times a week
Las Vegas (LAS) about 10 times a week

All 12 nonstop destinations from STS

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