$135 Cheap American Airlines flights St. George (SGU) to San Diego (SAN)

Landing cheap one-way American Airlines flights from SGU to SAN from $135 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $215 for your next getaway.**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 most affordable months to jet off to San Diego with American Airlines. You could also find fantastic deals on return and one-way fares in November.

Search for affordable American Airlines flights from St. George Airport (SGU) to San Diego Intl. Airport (SAN) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

To see if there’s a direct journey from SGU to SAN with American Airlines or other carriers, check the “Nonstop” box when browsing for tickets.

Browse American Airlines’s earliest flights from SGU to SAN by checking our “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**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 primary San Diego hub for American Airlines flights from St. George Airport (SGU).

Depending on your ticket type, a fee typically applies if you change or cancel your booking more than 24 hours after it’s confirmed. To find flexible fares, select our “No cancel fee” or “Changes included” filter when you look for flights. For more information on canceling or changing your reservation, visit “Trips,” select your flight and tick “Manage Booking.”