$123 Cheap Delta flights Idaho Falls (IDA) to San Diego (SAN)

You’ll find affordable return Delta Air Lines flights from $245 from IDA to SAN by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $123 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.

Look for one-way or return flights to San Diego in January or November. You could find cheaper fares with Delta Air Lines during these off-peak times.

Search for affordable Delta Air Lines flights from Idaho Falls Regional Airport (IDA) 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 class and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive tends to be 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.

Fill in your dates, click search and tick the “Nonstop” filter on Expedia to browse any direct flights from IDA to SAN with Delta Air Lines or other carriers.

Sort your results by “Morning” and “Early Morning” to browse the earliest flights from IDA to SAN. Setting off early means you’re less likely to experience 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.

Delta Air Lines flights from Idaho Falls Regional Airport (IDA) to San Diego touch down at San Diego Intl. Airport (SAN). This is the main entry point to this city.

Delta Air Lines makes traveling from IDA to SAN enjoyable with an excellent in-flight experience and a rewarding loyalty program. You could even start earning points with Delta SkyMiles. Don’t forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee may apply if you cancel or change your booking more than 24 hours after it’s confirmed. To secure flexible fares, select our “No cancel fee” or “Changes included” filter when looking for flights. To learn more about modifying or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”