$104 Cheap Flights from Houston (IAH) to Missoula (MSO)

View $104 flight on Mon, Jun 2, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Houston to Missoula (IAH-MSO)

Prices were available within the past 7 days and start at $104 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Jun 2 - Fri, Jun 6
IAH
Houston
MSO
Missoula
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Houston to Missoula, returning Fri, Jun 6, priced at $208 found 1 day ago
Frontier Airlines
Fri, May 30 - Fri, Jun 6
IAH
Houston
MSO
Missoula
$228 Roundtrip, found 8 hours ago
$228
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, May 30 from Houston to Missoula, returning Fri, Jun 6, priced at $228 found 8 hours ago
Frontier Airlines
Fri, Jun 13 - Mon, Jun 16
IAH
Houston
MSO
Missoula
$246 Roundtrip, just found
$246
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jun 13 from Houston to Missoula, returning Mon, Jun 16, priced at $246 just found
Frontier Airlines
Fri, May 30 - Mon, Jun 2
IAH
Houston
MSO
Missoula
$248 Roundtrip, found 6 days ago
$248
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, May 30 from Houston to Missoula, returning Mon, Jun 2, priced at $248 found 6 days ago
Frontier Airlines
Mon, Jun 2 - Fri, Jun 13
IAH
Houston
MSO
Missoula
$249 Roundtrip, found 2 days ago
$249
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Houston to Missoula, returning Fri, Jun 13, priced at $249 found 2 days ago
Frontier Airlines
Mon, Jun 16 - Mon, Jul 7
IAH
Houston
MSO
Missoula
$266 Roundtrip, found 1 hour ago
$266
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Jun 16 from Houston to Missoula, returning Mon, Jul 7, priced at $266 found 1 hour ago
Alaska Airlines
Thu, May 29 - Fri, Jun 6
IAH
Houston
MSO
Missoula
$291 Roundtrip, found 2 hours ago
$291
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Thu, May 29 from Houston to Missoula, returning Fri, Jun 6, priced at $291 found 2 hours ago
United
Wed, Jun 4 - Mon, Jun 9
IAH
Houston
MSO
Missoula
$302 Roundtrip, found 4 hours ago
$302
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Jun 4 from Houston to Missoula, returning Mon, Jun 9, priced at $302 found 4 hours ago
American Airlines
Thu, Jun 5 - Wed, Jun 11
IAH
Houston
MSO
Missoula
$321 Roundtrip, found 10 hours ago
$321
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Jun 5 from Houston to Missoula, returning Wed, Jun 11, priced at $321 found 10 hours ago
Delta
Wed, Jun 4 - Tue, Jun 10
IAH
Houston
MSO
Missoula
$337 Roundtrip, found 10 hours ago
$337
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Jun 4 from Houston to Missoula, returning Tue, Jun 10, priced at $337 found 10 hours ago
Flights from Houston (IAH) to Missoula (MSO)
Origin airport
George Bush Intercontinental
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Roundtrip price
$208
Distance
1539 mi

Houston to Missoula Flights

The cheapest times to fly from Houston 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 Houston to Missoula are during the month of June. You can find some of the cheapest flights from Houston to Missoula with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Houston to Missoula

Sunday is one of the best days to book for cheap flights from Houston 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 Houston 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 Houston to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $104 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 Houston 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 Houston 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 George Bush Intercontinental Airport (IAH) to Missoula Intl. Airport (MSO) cost?
Discover the latest flight deals from IAH 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 IAH to MSO?
The cheapest flights from IAH 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 IAH to MSO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from IAH to MSO. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Missoula Intl. Airport (MSO)?
You’ll need to take a flight with a layover when traveling from George Bush Intercontinental Airport (IAH) to Missoula Intl. Airport (MSO). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from IAH to MSO?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, including 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 George Bush Intercontinental Airport (IAH) to Missoula Intl. Airport (MSO)?
To touch down at Missoula Intl. Airport (MSO) on schedule, choose a flight that takes off from George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 George Bush Intercontinental Airport (IAH) to Missoula Intl. Airport (MSO) last-minute?
Booking your flight from IAH to MSO just before your getaway is usually more expensive. But if there’s some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an IAH to MSO flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAH to MSO flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the stress out of planning your trip. Just pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Missoula Intl. Airport (MSO)?
Generally, it’s possible to cancel or reschedule your IAH to MSO flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.