Cheap Flights from San Antonio International to Missoula

Compare San Antonio International to Missoula flight deals

Find the cheapest month or even day of the year to fly to Missoula

Book the best Missoula fare with no extra fees

Flight deals from San Antonio International to Missoula

Looking for a cheap last-minute deal or the best return flight from San Antonio International Airport to Missoula Airport? If you want to travel next month, return fares start from $591. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Antonio International to Missoula

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Antonio International to Missoula flights are currently cheapest in August.

San Antonio International to Missoula: Alternative routes

Compare routes from San Antonio International to Missoula below. You may find an airport to fly into that's cheaper, faster, or easier than Missoula.

San Antonio to Missoula: Flight information

The things to know before you go.
Cheapest flight found$589
Cheapest month to flyAugust

Finding cheap flights from San Antonio International to Missoula: Frequently asked questions

The best price we found for a return flight from San Antonio International to Missoula is $589. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from San Antonio International to Missoula. But we found flights with one or more stops from $589.
As of May 2026, there are no flights flying from San Antonio International to Missoula.
The cheapest month to fly from San Antonio International to Missoula is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to Missoula Airport on Thursday, 6 August 2026.
No airlines currently offer direct flights between San Antonio International Airport and Missoula Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Missoula but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Missoula is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Missoula.

Flying from San Antonio International Airport (SAT) to Missoula International Airport (MSO): what you need to know

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your SAT to MSO flight.

  • During popular months like July, you'll want to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of international flights when you travel during peak periods in general.

  • Think about adding a stopover when booking your ticket from San Antonio International Airport to Missoula International Airport. Simply uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between SAT and MSO:

    • Denver International Airport

    • Salt Lake City International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from San Antonio International Airport (SAT) to Missoula International Airport (MSO)

  • At the moment, $294 is the lowest price we've seen for a one-way San Antonio International Airport to Missoula International Airport flight. The best price for a return ticket is $589. Remember that fares may change due to demand when booking.

  • To find cheap tickets from SAT to MSO, book early. Airlines generally offer the most competitive fares when flights are first made available.

  • Getting cheap flights from San Antonio International Airport to Missoula International Airport is easy if you can be flexible with your dates. Use the 'Whole month' search function to see the lowest fares across the month and bag a great deal.

  • Cut down on the time spent looking for cheap flights from SAT to MSO by setting up a Price Alert. We'll send you an email or push notification on the app when a special offer becomes available.

  • Pick your preferred departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from San Antonio International Airport to Missoula International Airport.

Handy information about San Antonio International Airport (SAT)

  • SAT's address is 9800 Airport Boulevard.

  • San Antonio International Airport has a strong on-time performance, so flight disruptions are less likely. Departures from SAT arrive at their destination as scheduled 83.17% of the time.

  • San Antonio International Airport is around 19 kilometres from central San Antonio. If you're ride-sharing, catching a cab or driving from the centre, it'll take 20 minutes or so to get there, depending on the traffic.

  • Catching public transport? Expect a trip time of around 1 hour 30 minutes.

  • Get your journey off to a stress-free start by staying near SAT. Whether you're catching an early flight from San Antonio International Airport to Missoula International Airport or just don't want to be rushed, these stays are the answer:

Arriving at Missoula International Airport (MSO)

  • Book a hotel near MSO if you're catching a late San Antonio International Airport to Missoula International Airport flight. Pick one of these options and skip the long transfer after landing:

  • Get on the fast track to adventure by picking up a Missoula International Airport rental car. Grab a set of wheels from Budget, Dollar or Hertz and explore beyond Missoula's usual tourist stops.

  • Book your vehicle from Missoula International Airport at least a few weeks ahead to get the best deal. If you're going away during a peak period, it's smart to book even earlier.

Getting from Missoula International Airport (MSO) to central Missoula

  • The street address for MSO is 5225 Highway 10 West.

  • Missoula International Airport is roughly 11 kilometres from central Missoula. The drive time takes around 10 minutes.

  • It typically takes 35 minutes to get there by public transport.

When to fly to Missoula International Airport (MSO)

  • July is the most popular month for flights from San Antonio International Airport to Missoula International Airport. For a quieter experience, visit Missoula in February.

  • When booking your flight from San Antonio International Airport to Missoula International Airport, think about the kind of weather you like. July is the warmest month in Missoula, with the temperature ranging from 8ºC to 33ºC.

  • Look for cheap tickets from SAT to MSO in December if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -15ºC and 3ºC on average.

Explore more of United States

  • Missoula has plenty going for it, but there are so many other parts of United States just waiting to be explored. Around 274 kilometres west of Missoula, a trip to Spokane will keep your itinerary busy. Start with leading sights like Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

  • Boise is another essential stop in United States and is around 402 kilometres south-west of Missoula. No journey is complete without seeing Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.