Cheap flights from Wisconsin to San Diego from $99

If you are unable to visit San Diego during the month of January, then departing from Wisconsin during the month February is also very affordable. Most momondo users find prices during this month for around $355.

The cheapest day to depart from Wisconsin to San Diego is on a Thursday. Travelers who choose to depart for San Diego on a Thursday will often find tickets for as low as $392. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $718. 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 at noon when flights can be purchased for as low as $431. Flights in the afternoon are often more expensive with an average ticket price of $567.

Fly from Milwaukee-Mitchell to San Diego for the best Wisconsin - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Wisconsin when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $394 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Wisconsin for as low as $353 on momondo.

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

Frontier, United Airlines, and Sun Country Air are the most popular carriers operating from Wisconsin to San Diego

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Diego from Wisconsin according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 7 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

As of April 2026, there are 45 flights per day flying from Wisconsin to San Diego. The most common time of day flights depart is 2:00PM, with 57% of flights taking off in the afternoon.

As of April 2026, 321 flights take off from Wisconsin and land in San Diego each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.