$114 Cheap Flights from Missoula (MSO) to Phoenix (PHX)

View $114 flight on Fri, Aug 15, 2025Opens in a new window

Popular airlines from Missoula Intl. Airport (MSO) to Phoenix Sky Harbor Intl. Airport (PHX)

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Cheap Flights from Missoula to Phoenix (MSO-PHX)

Prices were available within the past 7 days and start at $114 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Oct 24 - Mon, Oct 27
MSO
Missoula
PHX
Phoenix
$228 Roundtrip, found 5 hours ago
$228
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Missoula to Phoenix, returning Mon, Oct 27, priced at $228 found 5 hours ago
Alaska Airlines
Tue, Oct 21 - Fri, Oct 24
MSO
Missoula
PHX
Phoenix
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 21 from Missoula to Phoenix, returning Fri, Oct 24, priced at $234 found 1 day ago
Hawaiian Airlines
Tue, Sep 9 - Tue, Sep 9
MSO
Missoula
PHX
Phoenix
$235 Roundtrip, found 1 day ago
$235
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Sep 9 from Missoula to Phoenix, returning Tue, Sep 9, priced at $235 found 1 day ago
Alaska Airlines
Tue, Sep 9 - Tue, Sep 9
MSO
Missoula
PHX
Phoenix
$235 Roundtrip, found 22 hours ago
$235
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Missoula to Phoenix, returning Tue, Sep 9, priced at $235 found 22 hours ago
United
Fri, Feb 6 - Tue, Feb 10
MSO
Missoula
PHX
Phoenix
$236 Roundtrip, found 1 day ago
$236
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 6 from Missoula to Phoenix, returning Tue, Feb 10, priced at $236 found 1 day ago
Alaska Airlines
Thu, Jan 29 - Mon, Feb 2
MSO
Missoula
PHX
Phoenix
$238 Roundtrip, found 4 days ago
$238
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Jan 29 from Missoula to Phoenix, returning Mon, Feb 2, priced at $238 found 4 days ago
Bargain Flight
Mon, Sep 8 - Tue, Sep 16
MSO
Missoula
PHX
Phoenix
$239 Roundtrip, found 5 hours ago
$239
Roundtrip
found 5 hours ago
Select Bargain Flight flight, departing Mon, Sep 8 from Missoula to Phoenix, returning Tue, Sep 16, priced at $239 found 5 hours ago
Frontier Airlines
Fri, Oct 17 - Thu, Oct 23
MSO
Missoula
PHX
Phoenix
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Missoula to Phoenix, returning Thu, Oct 23, priced at $240 found 2 days ago
Delta
Thu, Sep 11 - Thu, Sep 18
MSO
Missoula
PHX
Phoenix
$241 Roundtrip, found 5 hours ago
$241
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Sep 11 from Missoula to Phoenix, returning Thu, Sep 18, priced at $241 found 5 hours ago
American Airlines
Fri, Sep 12 - Mon, Sep 15
MSO
Missoula
PHX
Phoenix
$241 Roundtrip, found 6 hours ago
$241
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Fri, Sep 12 from Missoula to Phoenix, returning Mon, Sep 15, priced at $241 found 6 hours ago

Find the cheapest month to fly from Missoula (MSO) to Phoenix (PHX)

November is typically the cheapest month to fly

From $148 - $665 per traveler.

Graph displaying average flight prices per month

Alternative airports near Phoenix

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

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $270
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $270
Flights from Missoula (MSO) to Phoenix (PHX)
Origin airport
Missoula Intl.
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Roundtrip price
$228
Distance
937 mi

Missoula to Phoenix Flights

The cheapest times to fly from Missoula to Phoenix

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 Phoenix are during the month of October. You can find some of the cheapest flights from Missoula to Phoenix with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Missoula to Phoenix

Sunday is one of the best days to book for cheap flights from Missoula to Phoenix: 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 Phoenix

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 Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $114 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 Phoenix 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 Phoenix 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 Sky Harbor Intl. Airport (PHX) cost?
Discover the latest flight deals from MSO to PHX 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 PHX?
The cheapest flights from MSO to PHX 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 PHX?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MSO to PHX. 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 Sky Harbor Intl. Airport (PHX)?
You'll need to hop on a flight with a layover if you're traveling from Missoula Intl. Airport (MSO) to Sky Harbor Intl. Airport (PHX). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from MSO to PHX?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, including the airline and season.*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 Sky Harbor Intl. Airport (PHX)?
Book a flight from Missoula Intl. Airport (MSO) to Sky Harbor Intl. Airport (PHX) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**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.
What airports do you fly into for Phoenix from Missoula Intl. Airport (MSO)?
Check out your flight options from Missoula Intl. Airport (MSO) to Phoenix - Mesa Gateway Airport (AZA). This is the only Phoenix airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Missoula Intl. Airport (MSO) to Sky Harbor Intl. Airport (PHX) last-minute?
Booking your flight from MSO to PHX shortly before your getaway is usually more expensive. But if there's some wiggle room with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a MSO to PHX flight and hotel package?
Securing a MSO to PHX flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of stays and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Missoula Intl. Airport (MSO) to Sky Harbor Intl. Airport (PHX)?
If you reserved your MSO to PHX flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.