$179 Cheap Flights from White Plains (HPN) to Missoula (MSO)

View $179 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Westchester County Airport (HPN) to Missoula Intl. Airport (MSO)

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Cheap Flights from White Plains to Missoula (HPN-MSO)

Prices were available within the past 7 days and start at $179 for one-way flights and $362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 13 - Sat, Sep 27
HPN
White Plains
MSO
Missoula
$362 Roundtrip, found 23 hours ago
$362
Roundtrip
found 23 hours ago
Select Delta flight, departing Sat, Sep 13 from White Plains to Missoula, returning Sat, Sep 27, priced at $362 found 23 hours ago
American Airlines
Thu, Sep 11 - Fri, Sep 12
HPN
White Plains
MSO
Missoula
$362 Roundtrip, found 6 hours ago
$362
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Sep 11 from White Plains to Missoula, returning Fri, Sep 12, priced at $362 found 6 hours ago
American Airlines
Tue, Sep 9 - Sun, Sep 14
HPN
White Plains
MSO
Missoula
$379 Roundtrip, found 6 days ago
$379
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Sep 9 from White Plains to Missoula, returning Sun, Sep 14, priced at $379 found 6 days ago
Delta
Mon, Sep 1 - Sat, Sep 13
HPN
White Plains
MSO
Missoula
$381 Roundtrip, found 23 hours ago
$381
Roundtrip
found 23 hours ago
Select Delta flight, departing Mon, Sep 1 from White Plains to Missoula, returning Sat, Sep 13, priced at $381 found 23 hours ago
Delta
Fri, Sep 26 - Mon, Sep 29
HPN
White Plains
MSO
Missoula
$384 Roundtrip, found 6 days ago
$384
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 26 from White Plains to Missoula, returning Mon, Sep 29, priced at $384 found 6 days ago
American Airlines
Thu, Aug 21 - Thu, Aug 28
HPN
White Plains
MSO
Missoula
$395 Roundtrip, found 6 days ago
$395
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Aug 21 from White Plains to Missoula, returning Thu, Aug 28, priced at $395 found 6 days ago
Delta
Fri, Sep 26 - Sun, Sep 28
HPN
White Plains
MSO
Missoula
$400 Roundtrip, found 6 days ago
$400
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 26 from White Plains to Missoula, returning Sun, Sep 28, priced at $400 found 6 days ago
Delta
Thu, Aug 21 - Thu, Aug 28
HPN
White Plains
MSO
Missoula
$403 Roundtrip, found 6 days ago
$403
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Aug 21 from White Plains to Missoula, returning Thu, Aug 28, priced at $403 found 6 days ago
Delta
Fri, Sep 26 - Thu, Oct 2
HPN
White Plains
MSO
Missoula
$405 Roundtrip, found 6 days ago
$405
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 26 from White Plains to Missoula, returning Thu, Oct 2, priced at $405 found 6 days ago
Alaska Airlines
Sat, Sep 13 - Sat, Sep 27
HPN
White Plains
MSO
Missoula
$521 Roundtrip, found 5 days ago
$521
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 13 from White Plains to Missoula, returning Sat, Sep 27, priced at $521 found 5 days ago
Flights from White Plains (HPN) to Missoula (MSO)
Origin airport
Westchester County
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
$362
Distance
2023 mi

White Plains to Missoula Flights

The cheapest times to fly from White Plains to Missoula

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

 

The best time to book a flight from White Plains to Missoula

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

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 White Plains to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $179 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 White Plains to Missoula 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 White Plains to Missoula 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 Westchester County Airport (HPN) to Missoula Intl. Airport (MSO) cost?
Discover the latest flight deals from HPN to MSO 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 HPN to MSO?
The cheapest flights from HPN to MSO 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 HPN to MSO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from HPN to MSO. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Westchester County Airport (HPN) to Missoula Intl. Airport (MSO)?
There aren't any daily nonstop flights from Westchester County Airport (HPN) to Missoula Intl. Airport (MSO). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from HPN to MSO?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the carrier 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 Westchester County Airport (HPN) to Missoula Intl. Airport (MSO)?
To avoid potential delays on the Westchester County Airport (HPN) to Missoula Intl. Airport (MSO) route, travel before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Westchester County Airport (HPN) to Missoula Intl. Airport (MSO) last-minute?
Holding off until right before your break to book your flight from HPN to MSO often results in higher prices. While you may come across some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans to maximize your chances of landing a bargain.
Is it cheaper to book a HPN to MSO flight and hotel package?
Compared with arranging hotels and flights separately, booking a HPN to MSO flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place will take the stress out of travel planning. Just secure your flights and choose from our wide range of stays, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Westchester County Airport (HPN) to Missoula Intl. Airport (MSO)?
If you reserved your HPN to MSO 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 purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.