$128 Cheap Delta flights San Diego (SAN) to Great Falls (GTF)

You’ll discover cheap return Delta Air Lines flights from $256 from SAN to GTF by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $128 for a one-way trip.**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 jet away to Great Falls with Delta Air Lines. You could also find great deals on one-way and return tickets in February.

To find cheap Delta Air Lines fares from San Diego Intl. Airport (SAN) to Great Falls Intl. Airport (GTF), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the price you pay. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**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.

Click on our “Nonstop” filter when searching for direct Delta Air Lines flights from SAN to GTF. You can also compare other carriers offering the same direct trip.

To find the earliest departure from SAN to GTF with Delta Air Lines, filter your search by “Early Morning” and “Morning.” Choosing an early flight generally means you’ll experience 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.

Great Falls Intl. Airport (GTF) is the primary Great Falls gateway for Delta Air Lines flights from San Diego Intl. Airport (SAN).

Taking off from SAN to GTF with Delta Air Lines means enjoying a variety of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You can usually change or cancel your flight, although additional charges may apply if your booking was made more than 24 hours ago. Want to keep your options open? Make use of Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you have to revise your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for more information.