Cheap flights from Washington to San Luis Obispo from $89

In general, January is the cheapest month to fly from State of Washington to San Luis Obispo. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $212. The month of December is another great option to travel to San Luis Obispo, with average flight prices from State of Washington averaging around $247.

On average, the least expensive day to fly to San Luis Obispo from State of Washington is on a Saturday. momondo users have found tickets for Saturday departures for as low as $257. 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 State of Washington to San Luis Obispo for around $406.

Flying to San Luis Obispo from State of Washington in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $278 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $417 on average. Flights to San Luis Obispo from State of Washington in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Seattle/Tacoma Intl to San Luis Obispo County for the best Washington - San Luis Obispo County flight prices

You are more likely to see cheaper flights to San Luis Obispo from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to San Luis Obispo for around $300 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 State of Washington for as low as $196 on momondo.

There are 2 cabin classes available to choose from on Washington to San Luis Obispo County flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines and Alaska Airlines are the most popular carriers operating from Washington to San Luis Obispo County

Alaska Airlines, United Airlines and Hawaiian Airlines are the top three most popular airlines that fly to San Luis Obispo from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to San Luis Obispo. Keep in mind that there are 6 different airlines that fly to San Luis Obispo on a routine basis, so you have a few additional options to choose from.

The number of flights available between State of Washington and San Luis Obispo is 5 per day as of February 2026. The most frequent departure time is 4:00PM, with 100% of daily flights leaving in the afternoon.

The number of flights available between State of Washington and San Luis Obispo is 35 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.