$199 Cheap Delta flights St. George (SGU) to Boise (BOI)

Landing cheap one-way Delta Air Lines flights from SGU to BOI from $199 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $218 for your next break.**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.

Delta Air Lines flights to Boise are often cheaper in the quieter months of January and December. Whether you need a one-way or a return ticket, you could find a better deal then.

Search for cheap Delta Air Lines flights from St. George Airport (SGU) to Boise Airport (BOI) one to three months prior to your departure day. 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. No matter the fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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 find out if there’s a direct journey from SGU to BOI with Delta Air Lines or any other carriers, use our “Nonstop” filter when looking for tickets.

Filter your results by “Morning” and “Early Morning” to see the earliest departures from SGU to BOI. Setting 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.

Boise Airport (BOI) is the main Boise hub for Delta Air Lines flights from St. George Airport (SGU).

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a top choice for many passengers heading from SGU to BOI. What’s more, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s usually possible to cancel or modify your flight, although there may be additional fees if your booking was made over 24 hours ago. Want to keep your options open? Make use of Expedia’s “Changes included” and “No cancel fee” filters to find flights that won’t penalize you if you have to revise your plans. To modify your booking, go to “Trips,” select your flight and click on “Manage Booking” for further information.