Cheap flights from Tucson to San Diego from $99

If you are unable to visit San Diego during the month of September, then departing from Tucson during the month December is also very affordable. Most momondo users find prices during this month for around $288.

The cheapest day to depart from Tucson to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $283. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $431. 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 $342. Flights in the evening are often more expensive with an average ticket price of $431.

Fly from Tucson to San Diego for the best Tucson - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Tucson when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $341 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Tucson for as low as $237 on momondo.

No. A direct flight is the cheapest option for a flight between Tucson to San Diego.

As of May 2026, prices for Tucson to San Diego flights are approximately 41% cheaper when compared to flights at the same time last year.

Southwest and Delta are the most popular carriers operating from Tucson to San Diego

Southwest, American Airlines and Alaska Airlines are the top three most popular airlines that fly to San Diego from Tucson according to our data. Southwest 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 6 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

The number of flights available between Tucson and San Diego is 1 per day as of May 2026. The most frequent departure time is 6:00AM, with 43% of daily flights leaving at noon.

10 flights are operational weekly from Tucson to San Diego as of May 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.