$121 Cheap Delta flights Las Vegas (LAS) to Idaho Falls (IDA)

Grab cheap return Delta Air Lines flights from $241 from LAS to IDA by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $121 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.

Look for round-trip or one-way flights to Idaho Falls in January or February. You could find cheaper fares with Delta Air Lines during these off-season months.

Search for affordable Delta Air Lines flights from Harry Reid Intl. Airport (LAS) to Idaho Falls Regional Airport (IDA) one to three months ahead of 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 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.

Use our “Nonstop” filter when browsing for direct Delta Air Lines flights from LAS to IDA. You’ll also be able to compare other airlines offering the same nonstop journey.

Find Delta Air Lines’s earliest flights from LAS to IDA by selecting our “Early Morning” and “Morning” filters. Not only will you get to where you’re going 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.

Idaho Falls Regional Airport (IDA) is the primary Idaho Falls gateway for Delta Air Lines flights from Harry Reid Intl. Airport (LAS).

Jetting off from LAS to IDA with Delta Air Lines comes with a variety of perks, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to spend 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.

It’s usually possible to cancel or reschedule your flight, although there may be additional fees if you booked over 24 hours ago. Need flexible options? Make use of Expedia’s “Changes included” and “No cancel fee” filters to find flights that won’t penalize you if you need to revise your plans. To modify your itinerary, visit “Trips,” select your flight and click on “Manage Booking” for more information.