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 $315.

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 Sunday, the most expensive travel day of the week, you can expect to see flight prices from Denver to San Luis Obispo for around $434.

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 $325 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 $457 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 $376 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 $262 on momondo.

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

No. A direct flight is the cheapest option for a flight between Denver to San Luis Obispo.

As of August 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 and United Airlines are the most popular carriers 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 84% 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 August 2026. The most popular departure time for this route is 7:00PM, with 70% of flights per day taking off in the evening.

11 flights are operational weekly from Denver to San Luis Obispo as of August 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.