$233 Cheap Flights from Missoula (MSO) to St. George (SGU)

View $233 flight on Sun, Sep 21, 2025Opens in a new window

Popular airlines from Missoula Intl. Airport (MSO) to St. George Regional Airport (SGU)

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Cheap Flights from Missoula to St. George (MSO-SGU)

Prices were available within the past 7 days and start at $233 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Jan 12 - Sat, Jan 17
MSO
Missoula
SGU
St. George
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jan 12 from Missoula to St. George, returning Sat, Jan 17, priced at $238 found 1 day ago
United
Mon, Aug 11 - Mon, Aug 18
MSO
Missoula
SGU
St. George
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select United flight, departing Mon, Aug 11 from Missoula to St. George, returning Mon, Aug 18, priced at $243 found 3 days ago
Delta
Wed, Jan 14 - Sat, Jan 17
MSO
Missoula
SGU
St. George
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jan 14 from Missoula to St. George, returning Sat, Jan 17, priced at $268 found 1 day ago
Delta
Mon, Aug 4 - Tue, Aug 12
MSO
Missoula
SGU
St. George
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Aug 4 from Missoula to St. George, returning Tue, Aug 12, priced at $273 found 6 days ago
Delta
Tue, Dec 23 - Sat, Jan 10
MSO
Missoula
SGU
St. George
$287 Roundtrip, found 5 days ago
$287
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Dec 23 from Missoula to St. George, returning Sat, Jan 10, priced at $287 found 5 days ago
Delta
Tue, Aug 19 - Sun, Aug 24
MSO
Missoula
SGU
St. George
$297 Roundtrip, found 5 days ago
$297
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Aug 19 from Missoula to St. George, returning Sun, Aug 24, priced at $297 found 5 days ago
Delta
Mon, Dec 22 - Sun, Jan 4
MSO
Missoula
SGU
St. George
$298 Roundtrip, found 5 days ago
$298
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Dec 22 from Missoula to St. George, returning Sun, Jan 4, priced at $298 found 5 days ago
Delta
Thu, Aug 14 - Tue, Aug 19
MSO
Missoula
SGU
St. George
$302 Roundtrip, found 3 days ago
$302
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Aug 14 from Missoula to St. George, returning Tue, Aug 19, priced at $302 found 3 days ago
United
Fri, Jan 16 - Tue, Jan 20
MSO
Missoula
SGU
St. George
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jan 16 from Missoula to St. George, returning Tue, Jan 20, priced at $308 found 1 day ago
American Airlines
Thu, Dec 4 - Tue, Dec 9
MSO
Missoula
SGU
St. George
$528 Roundtrip, found 5 days ago
$528
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 4 from Missoula to St. George, returning Tue, Dec 9, priced at $528 found 5 days ago

Alternative airports near St. George

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to St. George Regional Airport SGU. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $387
SGU
St. George Regional Airport
CheapestClosest
Average driving time to city center20 min
Flights from $387
Flights from Missoula (MSO) to St. George (SGU)
Origin airport
Missoula Intl.
Destination airport
St. George
Airlines serving
American Airlines, Delta, United
Roundtrip price
$238
Distance
683 mi

Missoula to St. George Flights

The cheapest times to fly from Missoula to St. George

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Missoula to St. George are during the month of January. You can find some of the cheapest flights from Missoula to St. George with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Missoula to St. George

Sunday is one of the best days to book for cheap flights from Missoula to St. George: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Missoula to St. George

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Missoula to St. George in 2025. You can also book with separate airlines for your outbound and return journeys, from $233 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Missoula to St. George flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Missoula to St. George airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Missoula Intl. Airport (MSO) to St. George Airport (SGU) cost?
Discover the latest flight deals from MSO to SGU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MSO to SGU?
The cheapest flights from MSO to SGU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MSO to SGU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MSO to SGU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Missoula Intl. Airport (MSO) to St. George Airport (SGU)?
There are no daily direct flights from Missoula Intl. Airport (MSO) to St. George Airport (SGU). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from MSO to SGU?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Missoula Intl. Airport (MSO) to St. George Airport (SGU)?
Choose a flight from Missoula Intl. Airport (MSO) to St. George Airport (SGU) that leaves before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Missoula Intl. Airport (MSO) to St. George Airport (SGU) last-minute?
Last-minute bookings from MSO to SGU are generally more expensive. For the lowest rates, start looking for flights well ahead of time. That being said, if you can play around with your travel dates, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a MSO to SGU flight and hotel package?
Compared with arranging hotels and flights separately, booking a MSO to SGU flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Just pick your flights and select from our extensive range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Missoula Intl. Airport (MSO) to St. George Airport (SGU)?
If you booked your MSO to SGU flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.