Cheap flights from Denver to San Luis Obispo from $140

In general, February is the cheapest month to fly from Denver to San Luis Obispo. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $254. The month of December is another great option to travel to San Luis Obispo, with average flight prices from Denver averaging around $314.

On average, the least expensive day to fly to San Luis Obispo from Denver is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $314. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Denver to San Luis Obispo for around $467.

Flying to San Luis Obispo from Denver in the evening is the least expensive time of day to depart. momondo users have found prices as low as $328 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $469 on average. Flights to San Luis Obispo from Denver in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Denver Intl to San Luis Obispo County for the best Denver Intl - San Luis Obispo County flight prices

You are more likely to see cheaper flights to San Luis Obispo from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to San Luis Obispo for around $364 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Luis Obispo from Denver for as low as $243 on momondo.

You could potentially save up to 10% on your flight if you consider stops on a Denver to San Luis Obispo flight.

As of May 2026, prices for Denver to San Luis Obispo flights are approximately 15% cheaper when compared to flights at the same time last year.

Alaska Airlines is the most popular carrier operating from Denver Intl to San Luis Obispo County

United Airlines, Southwest and American Airlines are the top three most popular airlines that fly to San Luis Obispo from Denver according to our data. United Airlines is the first choice among our users, with 85% of people opting to fly with this airline when traveling to San Luis Obispo. Keep in mind that there are 5 different airlines that fly to San Luis Obispo on a routine basis, so you have a few additional options to choose from.

1 flights are operational daily from Denver to San Luis Obispo as of May 2026. The most popular departure time for this route is 11:00AM, with 71% of flights per day taking off at noon.

12 flights are operational weekly from Denver to San Luis Obispo as of May 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.