Cheap flights from Milwaukee to San Diego from $153

If you are unable to visit San Diego during the month of January, then departing from Milwaukee 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 Milwaukee 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 $398. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $765. 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 $450. Flights in the afternoon are often more expensive with an average ticket price of $517.

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

You are more likely to see cheaper flights to San Diego from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Milwaukee for as low as $251 on momondo.

Southwest and Delta are the most popular carriers operating from Milwaukee-Mitchell to San Diego

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to San Diego from Milwaukee according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 9 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Phoenix (PHX) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $298.

Flights connecting via Las Vegas (LAS) have the shortest average one-way travel time: 5h 54m.

Phoenix (PHX) has the shortest average layover time for this route: 0h 57m.

As of May 2026, there are 1 flights per day flying from Milwaukee to San Diego. The most common time of day flights depart is 2:00PM, with 57% of flights taking off in the afternoon.

The number of flights available between Milwaukee and San Diego is 7 per week as of May 2026. The most frequent departure day is Mon, with 29% of weekly flights leaving on this day.