$120 Cheap Alaska Airlines flights Idaho Falls (IDA) to San Diego (SAN)

View $120 flight on Thu, Aug 21, 2025Opens in a new window

$120 Cheap Alaska Airlines flights Idaho Falls (IDA) to San Diego (SAN)

Prices were available within the past 7 days and start at $120 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Idaho Falls (IDA) to San Diego (SAN)
Origin airport
Idaho Falls Regional
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
795 mi

Frequently asked questions

How much is an Alaska Airlines flight from Idaho Falls Regional Airport (IDA) to San Diego Intl. Airport (SAN)?
You'll find cheap return Alaska Airlines flights from IDA to SAN by sorting your results from "Price (lowest to highest)" on Expedia. Or search for options from $120 for a one-way journey.**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.
What is the cheapest month to fly from IDA to SAN with Alaska Airlines?
Search for one-way or round-trip flights to San Diego in January or November. You could find a cheap fare with Alaska Airlines during these off-peak months.
What is the cheapest time to book flights from Idaho Falls Regional Airport (IDA) to San Diego Intl. Airport (SAN) with Alaska Airlines?
Begin your search one to three months ahead of your departure date to get cheaper fares on Alaska Airlines flights from Idaho Falls Regional Airport (IDA) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic journeys.*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.
Does Alaska Airlines fly nonstop from Idaho Falls Regional Airport (IDA) to San Diego Intl. Airport (SAN)?
Enter your dates, hit search and select the "Nonstop" filter on Expedia to browse any direct flights from IDA to SAN with Alaska Airlines or another airline.
What is the earliest Alaska Airlines flight from IDA to SAN?
To find the earliest departures from IDA to SAN with Alaska Airlines, sort your results by "Morning" and "Early Morning." Booking an early flight generally means 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.
What airports does Alaska Airlines fly into in San Diego?
Hop on an Alaska Airlines flight from Idaho Falls Regional Airport (IDA) to San Diego, and you'll probably arrive at San Diego Intl. Airport (SAN). This is the airline's primary hub here.
Why fly with Alaska Airlines from IDA to SAN?
Flying from IDA to SAN with Alaska Airlines comes with plenty of perks, including an excellent in-flight experience and top-tier customer service. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That's on top of the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Idaho Falls Regional Airport (IDA) to San Diego Intl. Airport (SAN)?
Changes are generally free within 24 hours of booking, but your airline may charge you after that time. For more information about modifying your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to update your itinerary without extra charges, check the "Changes included" and "No cancel fee" filters when organizing your next break.

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*Available to One Key members.