Cheap flights from San Francisco to Kalispell from $120

The month of April is, on average, the cheapest month to fly to Kalispell from San Francisco, with most prices found around $328. If you aren’t able to travel to Kalispell during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $339.

The cheapest day to depart from San Francisco to Kalispell is on a Saturday. Travelers who choose to depart for Kalispell on a Saturday will often find tickets for as low as $459. The most expensive day to fly to Kalispell is Sunday, with ticket prices averaging around $609.

According to our data, the cheapest time of day to fly to Kalispell is in the evening. momondo users have found flights departing from San Francisco to Kalispell in the evening for as low as $394. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Kalispell, so prices are often more expensive at around $551 per ticket.

Fly from San Francisco to Kalispell Glacier Park for the best San Francisco - Kalispell Glacier Park flight prices

You are more likely to see cheaper flights to Kalispell from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Kalispell for around $443 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kalispell from San Francisco for as low as $382 on momondo.

You could potentially save up to 16% on your flight if you consider stops on a San Francisco to Kalispell flight.

As of May 2026, prices for San Francisco to Kalispell flights are approximately 34% more expensive when compared to flights at the same time last year.

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

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Kalispell from San Francisco according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Kalispell. Keep in mind that there are 6 different airlines that fly to Kalispell on a routine basis, so you have a few additional options to choose from.

Salt Lake City (SLC) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

Flights via Seattle (SEA) offer the lowest average round-trip price of $300.

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 4h 49m.

Salt Lake City (SLC) has the shortest average layover time for this route: 0h 58m.