Cheap flights from Colorado to San Francisco from $99

If you aren’t able to travel to San Francisco during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $282.

The cheapest day to depart from Colorado to San Francisco is on a Friday when prices can be found for as low as $349. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $607.

Our data shows that the cheapest Colorado to San Francisco flights are usually those with departure times in the afternoon. Our users have found flights to San Francisco in the afternoon for as low as $403. Flights in the morning are often more expensive with an average ticket price of $430.

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

You are more likely to see cheaper flights to San Francisco from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $314 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Colorado for as low as $237 on momondo.

There are 4 cabin classes available to choose from on Colorado to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Colorado to San Francisco

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to San Francisco from Colorado according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 6 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 25 flights per day flying from Colorado to San Francisco. The most common time of day flights depart is 7:00AM, with 44% of flights taking off at noon.

As of September 2026, 176 flights take off from Colorado and land in San Francisco each week. The most common flight departure day for this route is Tue, with 30% of weekly flights taking off on this day.