Cheap flights from Kansas City to San Diego from $87

If you are unable to visit San Diego during the month of September, then departing from Kansas City during the month August is also very affordable. Most momondo users find prices during this month for around $298.

The cheapest day to depart from Kansas City to San Diego is on a Friday. Travelers who choose to depart for San Diego on a Friday will often find tickets for as low as $531. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $664. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $544. Flights at noon are often more expensive with an average ticket price of $658.

Fly from Kansas City to San Diego for the best Kansas City - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Kansas City for as low as $316 on momondo.

There is only 1 cabin class available to choose from on Kansas City to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Delta, and Southwest are the most popular carriers operating from Kansas City to San Diego

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to San Diego from Kansas City according to our data. Southwest is the first choice among our users, with 46% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 5 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 48% of momondo users choosing 1-stop flights on this route connected there.

Flights via Austin (AUS) offer the lowest average round-trip price of $243.

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 5h 08m.

Las Vegas (LAS) has the shortest average layover time for this route: 1h 03m.

As of June 2026, there are 1 flights per day flying from Kansas City to San Diego. The most common time of day flights depart is 6:00PM, with 60% of flights taking off in the evening.

The number of flights available between Kansas City and San Diego is 8 per week as of June 2026. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.