Cheap Flights from San Francisco to Denver — $116

San Francisco International (SFO) is the Bay Area’s primary international gateway and a major hub for full-service carriers, typically hosting transpacific and domestic flights operated by legacy airlines and several international carriers. It’s about 21 km (13 miles) south of downtown San Francisco; the BART metro connects the terminals to the city center in roughly 30–45 minutes for fares typically in the single-digit USD range, while taxi or rideshare trips can take 25–45 minutes depending on traffic and run at higher, variable costs. Pros: extensive amenities, global connectivity and frequent service. Cons: can be busy with occasional delays and longer walks between gates.

Denver International Airport (DEN) is the region’s major international hub and the primary gateway for most long-haul and domestic flights into Colorado, typically serving legacy carriers and several low-cost airlines. Located about 25 miles (40 km) northeast of downtown Denver, transfers to the city usually take 30–45 minutes by the A Line commuter train (fare range generally modest) or 30–60 minutes by taxi or rideshare depending on traffic at a higher cost. Ground transportation also includes shuttle services and car rentals with straightforward highway access. Pros: extensive amenities, many flight options and year-round connections. Cons: longer transfer distance to downtown and potential for weather-related delays.

The minimum one-way ticket price from San Francisco to Denver is $66 (September 2026), while the maximum is $194 (August 2026). On average, a ticket costs $130–$194.

The route San Francisco — Denver is served by several airlines: United Airlines, Southwest Airlines, and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $116 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.