Cheap flights from San Francisco to Denver from $143

In general, October is the cheapest month to fly from San Francisco to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $325. If you aren’t able to travel during the month of October, then book flights to Denver from San Francisco during April instead. Flights to Denver in April, while not as cheap as those in October, still average around $329.

According to our data, Friday is the cheapest day to fly to Denver from San Francisco. The lowest ticket price found for a Friday departure recently was $354. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Denver for around $446.

According to our data, the cheapest time of day to fly to Denver is in the morning. momondo users have found flights departing from San Francisco to Denver in the morning for as low as $446. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Denver is at midday when prices are around $483.

Fly from San Francisco to Denver Intl for the best San Francisco - Denver Intl flight prices

You are more likely to see cheaper flights to Denver from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $361 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from San Francisco for as low as $285 on momondo.

There are 2 cabin classes available to choose from on San Francisco to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 59% on your flight if you consider stops on a San Francisco to Denver flight.

As of March 2026, prices for San Francisco to Denver flights are approximately 8% cheaper when compared to flights at the same time last year.

Historically, on average around 17% of flights between San Francisco and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

25 flights are operational daily from San Francisco to Denver as of March 2026. The most popular departure time for this route is 14:00, with 37% of flights per day taking off in the afternoon.

As of March 2026, there are 180 flights per week flying from San Francisco to Denver. The most common day of the week flights depart is Thu, with 29% of flights taking off on this day.