Cheap flights from Montana to San Francisco from $84

If you aren’t able to travel to San Francisco during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $307.

The cheapest day to depart from Montana to San Francisco is on a Friday when prices can be found for as low as $376. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $706.

Our data shows that the cheapest Montana to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $239. Flights in the morning are often more expensive with an average ticket price of $755.

Fly from Missoula Johnson-Bell Field to San Francisco for the best Montana - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Montana when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $352 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Montana for as low as $275 on momondo.

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

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Montana to San Francisco

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to San Francisco from Montana according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 4 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

As of August 2026, 5 flights take off from Montana and land in San Francisco each day. The most common flight departure time for this route is 4:00PM, with 92% of daily flights taking off in the afternoon.

The number of flights available between Montana and San Francisco is 38 per week as of August 2026. The most frequent departure day is Fri, with 21% of weekly flights leaving on this day.