Santa Rosa (STS) to Denver (DEN) flights
One airline flies nonstop from Santa Rosa (STS) to Denver (DEN): Southwest Airlines. The two airports are 974 miles (1,567 km) apart. There are also 12 ways to fly it with one stop, through Salt Lake City, Las Vegas and Boise and more.
Airlines flying nonstop from STS to DEN
- Southwest AirlinesNot in an allianceWho books it
STS to DEN with one stop
12 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Salt Lake City (SLC)Delta Air Lines the whole way
+1
- Via Las Vegas (LAS)Southwest Airlines the whole way
- Via Boise (BOI)Alaska Airlines, then Frontier Airlines, United Airlines and 1 more
- Via Burbank (BUR)Southwest Airlines the whole way
- Via Ontario (ONT)Alaska Airlines, then Frontier Airlines, United Airlines and 1 more
- Via Palm Springs (PSP)Alaska Airlines, then United Airlines and Southwest Airlines
- Via Los Angeles (LAX)Alaska Airlines, then American Airlines, Delta Air Lines and 3 more
+2 - Via Santa Ana (SNA)Alaska Airlines, then Frontier Airlines, United Airlines and 1 more
- Via Phoenix (PHX)American Airlines the whole way+1
- Via San Diego (SAN)Alaska Airlines and Southwest Airlines the whole way+1
- Via Portland (PDX)Alaska Airlines the whole way+1
- Via Seattle (SEA)Alaska Airlines the whole way+3
STS to DEN: common questions
Which airlines fly nonstop from STS to DEN?
Southwest Airlines flies nonstop from Santa Rosa (STS) to Denver (DEN).
How far is Santa Rosa from Denver by plane?
Santa Rosa (STS) and Denver (DEN) are 974 miles (1,567 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does STS to DEN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for STS to DEN with taxes and fees.
Where can I connect between Santa Rosa and Denver?
The most direct connections are through Salt Lake City (SLC), Las Vegas (LAS), Boise (BOI), Burbank (BUR) and Ontario (ONT). On 7 of them the same airline flies both flights, for example Delta Air Lines through Salt Lake City.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.