Cheap Flights from San Francisco to Denver — $74

The route San Francisco — Denver is served by a single airline — Frontier Airlines. This means that when planning your trip, you won’t need to spend time choosing between dozens of carriers: all flights are operated by one provider, which simplifies the booking process. Despite the limited choice, passengers can still plan ahead, select optimal departure dates, and buy tickets at the lowest price — from $74. Using our service, you can quickly compare available Frontier Airlines flights and book a seat in advance at a favorable rate.

Fly from San Francisco to Denver with confidence — our search scans over 700 airlines, 50+ travel agencies and 5+ top booking systems to uncover the best fares, flight times and ticket conditions for your trip. Compare nonstop and connecting options side-by-side and lock in the option that fits your schedule and budget.

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.

Fly direct from San Francisco to Denver for the quickest, most convenient way to reach the Mile High City — less hassle, no layovers, and more time to enjoy your trip. While connecting flights can sometimes be cheaper, a nonstop gets you there faster and with greater comfort, making it a smart choice for business or leisure travel. Book now to lock in a smooth, efficient journey between these two vibrant cities.

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 $59 (April 2026), while the maximum is $62 (May 2026). On average, a ticket costs $60–$62.