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

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      Travellers and cabin class, 1 Adult, Economy

      Compare Houston George Bush Intercntl. 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 Houston George Bush Intercntl. to Missoula

      Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. Airport to Missoula Airport? If you want to travel next month, return fares start from $505. Find the lowest prices on one-way and return tickets right here.
      Missoula.$505 per passenger.Departing Fri, 25 Sep, returning Thu, 1 Oct.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Fri, 25 Sep, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Thu, 1 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $505, select.
      Missoula.$505 per passenger.Departing Fri, 11 Sep, returning Tue, 15 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston George Bush Intercntl. on Fri, 11 Sep, arriving in Missoula.Inbound indirect flight with Delta, departs from Missoula on Tue, 15 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $505, select.
      Missoula.$643 per passenger.Departing Fri, 4 Dec, returning Mon, 7 Dec.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Fri, 4 Dec, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Mon, 7 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $643, select.
      Missoula.$666 per passenger.Departing Thu, 15 Apr, returning Thu, 29 Apr.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Thu, 15 Apr, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Thu, 29 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $666, select.
      Missoula.$685 per passenger.Departing Thu, 5 Nov, returning Sun, 8 Nov.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Thu, 5 Nov, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Sun, 8 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $685, select.
      Missoula.$688 per passenger.Departing Thu, 26 Nov, returning Tue, 1 Dec.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Thu, 26 Nov, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Tue, 1 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $688, select.
      Missoula.$780 per passenger.Departing Fri, 21 Aug, returning Tue, 25 Aug.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Fri, 21 Aug, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Tue, 25 Aug, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $780, select.
      Missoula.$995 per passenger.Departing Thu, 8 Oct, returning Sun, 11 Oct.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Thu, 8 Oct, arriving in Missoula.Inbound indirect flight with United, departs from Missoula on Sun, 11 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $995, select.
      Missoula.$1,026 per passenger.Departing Thu, 25 Mar, returning Fri, 2 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston George Bush Intercntl. on Thu, 25 Mar, arriving in Missoula.Inbound indirect flight with Delta, departs from Missoula on Fri, 2 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,026, select.

      Find the cheapest month to fly from Houston George Bush Intercntl. to Missoula

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to Missoula flights are currently cheapest in September.
      Aug
      from $780
      Sep
      from $505
      Oct
      from $995
      Nov
      from $685
      Dec
      from $643
      Jan
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      Feb
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      Mar
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      Apr
      from $666
      May
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      Jun
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      Jul
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      Houston George Bush Intercntl. to Missoula: Alternative routes

      Compare routes from Houston George Bush Intercntl. to Missoula below. You may find an airport to fly into that's cheaper, faster, or easier than Missoula.

      Missoula

      8km from central Missoula
      ClosestCheapest
      from $505
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      Houston to Missoula: Flight information

      The things to know before you go.
      Cheapest flight found$505
      Cheapest month to flySeptember

      Finding cheap flights from Houston George Bush Intercntl. to Missoula: Frequently asked questions

      The best price we found for a return flight from Houston George Bush Intercntl. to Missoula is $505. 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 Houston George Bush Intercntl. to Missoula. But we found flights with one or more stops from $505.
      As of August 2026, there are no flights flying from Houston George Bush Intercntl. to Missoula.
      The cheapest month to fly from Houston George Bush Intercntl. to Missoula is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to Missoula Airport on Friday, 25 September 2026.
      No airlines currently offer direct flights between Houston George Bush Intercntl. 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, United offers the cheapest flight tickets to Missoula.

      Travelling from Houston George Bush Intercntl. Airport (IAH) to Missoula Airport (MSO): what you need to know

      • Get to the airport on time so you don't miss your IAH to MSO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

      • Travelling during a peak time like July? Major public holidays and other popular periods can lead to longer queues at airport checkpoints. Play it safe and get there up to four hours ahead of international flights and two hours before domestic departures.

      • Consider adding a stopover when booking your ticket from Houston George Bush Intercntl. Airport to Missoula Airport. Simply deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between IAH and MSO:

        • Dallas Fort Worth International Airport

        • Denver International Airport

        • Salt Lake City Airport

      How to find the cheapest flights from Houston George Bush Intercntl. Airport (IAH) to Missoula Airport (MSO)

      • Currently, $267 is the cheapest price we've seen for a one-way Houston George Bush Intercntl. Airport to Missoula Airport flight. The best price for a return plane ticket is $505. Bear in mind that fares can change due to demand when booking.

      • It's usually smart to book ahead of time if you're hoping to get cheap tickets from IAH to MSO. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

      • Getting cheap flights from Houston George Bush Intercntl. Airport to Missoula Airport is easier if you can be flexible with your travel plans. Use the 'Whole month' function to see the best prices across the month and snap up a great deal.

      • There's no need to check every day to find out if fares have dropped when you set up a Price Alert. We'll send you an update as soon as there's a new deal on cheap flights from IAH to MSO.

      • Discover the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Houston George Bush Intercntl. Airport to Missoula Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and number of stops.

      Handy information about Houston George Bush Intercntl. Airport (IAH)

      Arriving at Missoula Airport (MSO)

      When to fly to Missoula Airport (MSO)

      • July is the busiest month for flights from Houston George Bush Intercntl. Airport to Missoula Airport. To steer clear of the crowds, travel to Missoula in March.

      • Book your flight from Houston George Bush Intercntl. Airport to Missoula Airport for July if you want to visit Missoula during its warmest month. Expect temperatures of between 8ºC (46ºF) and 33ºC (91ºF).

      • If you want cooler conditions, look for a cheap ticket from IAH to MSO in January. Temperatures average between -16ºC (3ºF) and 2ºC (36ºF) then.

      Explore more of the United States

      • Missoula is easy to fall in love with, but there are so many other parts of the United States waiting to be discovered. About 274 kilometres west of Missoula, a visit to Spokane will keep you busy. Start with leading attractions like Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

      • Boise is another sought-after destination in the United States and is around 402 kilometres south-west of Missoula. No trip is complete without dropping by Cathedral Of The Rockies, Boise Depot and St. John's Cathedral.

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      Plan the rest of your trip from Houston to Missoula

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.