Cheap flights from North America to San Diego from $33

If you are unable to visit San Diego during the month of September, then departing from North America during the month October is also very affordable. Most momondo users find prices during this month for around $337.

The cheapest day to depart from North America 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 $369. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $485. 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 evening when flights can be purchased for as low as $367. Flights in the morning are often more expensive with an average ticket price of $409.

Fly from Denver Intl to San Diego for the best North America - San Diego flight prices

You are more likely to see cheaper flights to San Diego from North America when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $369 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from North America for as low as $301 on momondo.

There are 4 cabin classes available to choose from on North America 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, United Airlines, and Southwest are the most popular carriers operating from North America to San Diego

Frontier, United Airlines and Alaska Airlines are the top three most popular airlines that fly to San Diego from North America according to our data. Frontier is the first choice among our users, with 34% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 11 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

As of February 2026, there are 227 flights per day flying from North America to San Diego. The most common time of day flights depart is 4:00PM, with 45% of flights taking off in the afternoon.

As of February 2026, there are 1,594 flights per week flying from North America to San Diego. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.