Cheap flights from Phoenix Sky Harbor Intl Airport to San Diego from $31

If you are unable to visit San Diego during the month of October, then departing from Phoenix Sky Harbor Intl Airport during the month September is also very affordable. Most momondo users find prices during this month for around $116.

The cheapest day to depart from Phoenix Sky Harbor Intl Airport 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 $155. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $215. 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 $157. Flights in the evening are often more expensive with an average ticket price of $212.

Fly from Phoenix Sky Harbor Intl to San Diego for the best Phoenix Sky Harbor Intl - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $140 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Phoenix Sky Harbor Intl Airport for as low as $103 on momondo.

There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Phoenix Sky Harbor Intl to San Diego

Frontier, American Airlines and Southwest are the top three most popular airlines that fly to San Diego from Phoenix Sky Harbor Intl Airport according to our data. Frontier is the first choice among our users, with 54% 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.

Historically, on average around 17% of flights between Phoenix and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

22 flights are operational daily from Phoenix Sky Harbor Intl Airport to San Diego as of March 2026. The most popular departure time for this route is 8:00AM, with 40% of flights per day taking off in the afternoon.

As of March 2026, 157 flights take off from Phoenix Sky Harbor Intl Airport and land in San Diego each week. The most common flight departure day for this route is Tue, with 20% of weekly flights taking off on this day.