Helping travelers to find the best flight offers
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.
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from San Francisco to Denver
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from San Francisco to Denver:
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We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
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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.
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.
The cheapest one-way flight from San Francisco to Denver departs on 12/03/2025, is operated by Alaska Airlines and costs $63
The cheapest roundtrip flight from San Francisco to Denver departs on 04/17/2026, is operated by Alaska Airlines and costs $346
Fastest flight from San Francisco to Denver takes 11h 24m
There are no direct flights on this route.
The distance between San Francisco and Denver is 1524km (945 miles). The average flight duration is 2h 40m. There are 117 direct flights from San Francisco to Denver. The time difference between San Francisco and Denver is 1h. Flights from San Francisco begin at 5:00 AM. The latest flight from San Francisco departs at 9:00 PM
San Francisco — Denver
12/04/2025
Departure
Direct flight
UA1871
Starting at $98
Starting at $98
Starting at $63
The route San Francisco — Denver is served by several airlines: United Airlines and Alaska 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 $63 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.
The cheapest flight ticket from San Francisco to Denver according to data for the last 48 hours costs $63
Often the best time to buy tickets from San Francisco to Denver is 2 months before departure.
The fastest flights from San Francisco to Denver start from 11 hours 24 minutes in the air.
The following airlines operate direct flights on the route San Francisco — Denver: United Airlines
We couldn't find any special offers for flights from San Francisco to Denver