Cheap Flights from San Francisco to Denver Starting at $71
Helping travelers to find the best flight offers
Cheapest flights from San Francisco to Denver
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.
Remember that on average the ideal time to book flights is 2 months before departure!
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.
Schedule of direct flights 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:
San Francisco airports overview
Denver airports overview
Frequently asked questions (FAQ)
Answers to questions about the route that travelers are most interested in.
Special offers and sales on air tickets from San Francisco to Denver
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.
Alternative routes
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Cheapest one way flight
$71
Frontier Airlines
1 transfer
14h 10m
10/14/2025
The cheapest one-way flight from San Francisco to Denver departs on 10/14/2025, is operated by Frontier Airlines and costs $71
Cheapest round trip flight
$135
Frontier Airlines
Direct flight
5h 36m
10/30/2025
The cheapest roundtrip flight from San Francisco to Denver departs on 10/30/2025, is operated by Frontier Airlines and costs $135
The fastest flight
2h 25m
Fastest flight from San Francisco to Denver takes 2h 25m
Direct flights
Several times a week
There are direct flights on this route 3 days a week: Tu, We, and Th
Earliest flight
5:00 AM
Latest flight
9:15 PM
Direct flights count
120
Distance
1524km
Timezone difference
1h
The distance between San Francisco and Denver is 1524km (945 miles). There are 120 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 9:15 PM
The San Francisco — Denver route is served by a wide range of airlines: 4 in total, including United Airlines, Frontier Airlines, Southwest Airlines, and Air Canada. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $71. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.
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.
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.
We couldn't find any special offers for flights from San Francisco to Denver
How much is the cheapest flight ticket from San Francisco to Denver?
The cheapest flight ticket from San Francisco to Denver according to data for the last 48 hours costs $71
When is the best time to buy air tickets on the route San Francisco — Denver?
Often the best time to buy tickets from San Francisco to Denver is 2 months before departure.
When is the cheapest time of year to fly from San Francisco to Denver?
Based on statistics over the past years, the lowest prices for flights from San Francisco to Denver can be found flying in these months: October.
How long does it take to fly from San Francisco to Denver?
The fastest flights from San Francisco to Denver start from 2 hours 25 minutes in the air.
Which airline can fly direct from San Francisco to Denver?
The following airlines operate direct flights on the route San Francisco — Denver: United Airlines
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
