Cheap flights from Kahului to San Diego from $138

If you are unable to visit San Diego during the month of April, then departing from Kahului during the month September is also very affordable. Most momondo users find prices during this month for around $317.

The cheapest day to depart from Kahului 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 $420. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $518. 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 morning when flights can be purchased for as low as $427. Flights at noon are often more expensive with an average ticket price of $497.

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

You are more likely to see cheaper flights to San Diego from Kahului when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $412 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Kahului for as low as $270 on momondo.

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

Southwest, Delta, and Alaska Airlines are the most popular carriers operating from Kahului to San Diego

Alaska Airlines, Hawaiian Airlines and Alaska Airlines are the top three most popular airlines that fly to San Diego from Kahului according to our data. Alaska Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 4 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 Kahului and San Diego is 2 per day as of May 2026. The most frequent departure time is 8:00PM, with 73% of daily flights leaving in the evening.

As of May 2026, there are 19 flights per week flying from Kahului to San Diego. The most common day of the week flights depart is Wed, with 21% of flights taking off on this day.