$258 Cheap Southwest Airlines flights San José (SJO) to San Diego (SAN)

Make use of the “Price (lowest to highest)” filter on Expedia to look for cheap Southwest Airlines round-trip flights from $376 from SJO to SAN. Affordable one-way options from $258 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to fly to San Diego with Southwest Airlines. You could also find excellent prices on one-way and return fares in November.

To find cheap flights from SJO to SAN with Southwest Airlines, start your search about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Simply enter your dates, hit search and tick the “Nonstop” filter on Expedia to browse any direct flights from SJO to SAN with Southwest Airlines or other carriers.

Filter your results by “Morning” and “Early Morning” to browse the earliest flights from SJO to SAN. Heading off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

San Diego Intl. Airport (SAN) is the main San Diego hub for Southwest Airlines flights from Juan Santamaria Intl. Airport (SJO).

Depending on the ticket type you purchased, a fee typically applies if you cancel or change your booking more than 24 hours after confirmation. To find flexible fares, select our “Changes included” or “No cancel fee” filter while looking for flights. For more details on modifying or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”