$162 Cheap Delta flights New Orleans (MSY) to Missoula (MSO)

Make use of the "Price (lowest to highest)" filter on Expedia to search for cheap Delta Air Lines round-trip flights from $323 from MSY to MSO. Affordable one-way tickets from $162 are also available.**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 affordable Delta Air Lines flights from Louis Armstrong New Orleans Intl. Airport (MSY) to Missoula Intl. Airport (MSO) 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. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive day 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.

Sort your results by "Early Morning" and "Morning" to find the earliest flights from MSY to MSO. Taking off early means you're 20% 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.

Taking off from MSY to MSO with Delta Air Lines comes with plenty of perks, such as an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That's in addition to 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.