$152 Find Cheap Flights from St. Louis to Montana

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Montana departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Montana, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Montana, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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Best Montana Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Bozeman
Bozeman1 stop$316
Kalispell
Kalispell1 stop$318
Missoula
Missoula1 stop$324
Billings
Billings1 stop$326

Good to know

Low season

November

High season

July

Cheapest flight

$152
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from St. Louis to Kalispell

FAQs - booking Montana flights

  • How does KAYAK find such low prices on flights from St. Louis to Montana?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Montana.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Montana?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Montana is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Montana?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Montana with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Montana?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Montana

  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from St. Louis is February.
  • Morning departure is around 126% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from St. Louis to Montana

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Montana. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Montana? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
SouthwestOverall score based on 4821 reviews
8.7Crew
7.7Entertainment
8.1Comfort
8.2Boarding
7.2Food
Airline reviews

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

10.0 ExcellentWilliam Drew, Dec 2024SJC - HNL
Read more Southwest reviews

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

Crew was great flight was great baggage claim was a failure. It took over 1 hour for bags to arrive. Poor communication poor effort when I spoke to the supervisor about the delay

Much better than the.last. flight on SW on Thanksgiving day

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

It went well. Plane wasn't full. Will be great when assigned seating is in place

Everything was great except the food. The pretzels are really crappy.

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

It was fine. For some reason the flight was much longer than usual. It may have been explained, but I had noise cancelling earbuds on and missed a couple of announcements. The crew was fine, but there was a flight attendant who kept telling dumb jokes, occasionally one I found distasteful. This was my second time with him, but luckily it was a late flight so he didn't do as many. But I heard all of today's jokes twice, which was two times too many. Good takeout and landing.

One of the crew performed a hilarious skit to accompany the standard instructions. Passengers enjoyed it so much they applauded at the end!

Seats were the least comfortable that I can remember ever having. Seat location just across from lavatory doors was not a good location to say the least. Wife has a back problem and to have a seat that is no adjustable for posture was torture for the three plus hour flight

I flew from San Francisco to Honolulu on Hawaiian Airlines. The flight was operated by Alaska Airlines. Everything was fantastic. On the return flight from Honolulu to San Francisco, boarding was chaotic. They called each boarding group 1 through 6 very quickly, and everyone just ran and got in a very long line. There was no enforcement of boarding groups. Carry-on rules were not followed, and by the time I boarded the plane, there was barely any overhead space. I was boarding group 4. The crew was very professional, and the Hawaiian Airlines terminal in Honolulu was beautiful. I wish the rest of Honolulu Airport looked like the Hawaiian Airlines Terminal.

The take off and landing were smooth as was the flight. The service was great. Bathroom was clean. Thank you

From my interactions with the Oakland airport staff through TSA through the gate agents to the flight crew on Hawaiian they were just so kind professional and helpful.. the only thing I would add would be the they need more help and TSA and on the Hawaiian airlines flight it would be so much nicer for them to play beautiful Hawaiian music on the way over there.. they didn't start playing it until right before we landed..

Would like to see more consideration of older people. I have issues with being on my feet and walking too far. You put me in the last seat on the plane. Way in the back. Other than that everything was vey good.

Portland reservationist required me to check bag… tho always been ok as carryon before this experience. She didn’t ask my name or destination, seat number; only looked at boarding pass. She then sent my bag to wrong destination: Idaho Falls instead of Bzn, Mt. I spent 1 hr in Bzn trying to get this straightened out and locating where my bag might be? The Bozeman customer service was great and figured out the error that occurred in Seattle. They were wonderful, filed a claim and located my bag. They also offered me compensation for my problem which was helpful. Missed my meds last nite and following morning. Hope this will be resolved later today. 🙁

The app is very bugy, did not work well. Other than that it was ok.

Our travels originated in Spokane to Portland, we left about 1/2 hour late, we had only 45 mins to catch the flight home. In mid flight the flight attend approached us saying that we are going to land after our plane home is going to start boarding. And not only my wife and I are on that plane, but 3 others. We ended up landing about 40 mins the plane started to board, they let us off the plane first, but when we got off the plane and started to go to the next gate, there was no one to guide us or aid us in how to get to the next gate! With that being said, the next gate was VERY, VERY far apart! We practically had to run to the next gate, which was at the end of the terminal. It was not like we took a different Airlines for both legs, but it was the same Airlines.

Excellent gate to gate delivery by wheelchair staff. Really appreciate it!

The flight was delayed an hour and it was not disclosed to the passengers until it was time to board. There was no in-flight WiFI available and such poor communication overall. Unfortunate that I was going to miss my connecting flight with poor communication on alternatives.

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

Everything was great. Great service, excellent communication, and early arrival

Delta flight attendants poorly managed the boarding process and overhead storage. My bag was checked last minute and no claim ticket was provided. My bag is now lost. Complete incompetence by all flight crew involved.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

It was terrible, if they ran flights on time it would make a big difference.

Great flight. On-time, comfortable, clean aircraft, and offered snacks pre-flight to plan for a potentially turbulent route. I wish there was Wi-Fi an all Delta Aircrafts but for a short flight this is not much of a problem.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

We arrived early and finally made it to our gate almost an hour after.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

David went above and beyond to make our flight the best that it could be

Was a pain having to leave the plane and reboard but glad the plane was fixed

How badly can you screw up baggage claim? We were told to go to baggage claim too for our bags from this flight. Another flights bags were there. They finished up. More bags from a different flight arrived. Our bags did not Finally the baggage claim belt stopped working and and are flight was still listed on the arrivals for that baggage claim 2. And then nothing It turns out that they had been delivered not only the United baggage claim but far away on a Delta baggage claim No I never told us. It was only the people looking around who had been on the flight But I’m sure there was plenty of time for the employees to raffle through the bags and steal whatever they wanted

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

We had to wait almost an hour for the wheelchair porter to be ready to pick up my mother. And when she arrived in Newark airport the porter was not there and she started walking with her cane and her poor mobility. When the Newark porter found her they didn't want to transfer her bags to the wheelchair for her.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

Flight areas delayed 3 hours , train in the airport didn’t work

Flight attendant walked away once they landed and we were forced to wait another hour after an already 3hr delay.

No overhead space so all carryons were checked. No internet.

The flight was on time and everything went very smoothly.

A thousand choices for movies and nothing to watch. I avoid 'R' rated shows and others with violence and sexual content, which results in a handful of flicks to view and I have them already.

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

Two issues. The plane was old and dirty. The armrest looked like an old car that had the vinyl rubbed off. The Seats in these aircraft are about as hard and uncomfortable. I want to tour Italy for a month and I want to buy a one-way ticket to Thailand but I will not sit in the seats these planes have. It is seriously stupid how hard they are.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

Book cheap flights from St. Louis to Montana

Recent round-trip flight deals

 
These are the cheapest round-trip flights from St. Louis to Montana found on KAYAK in the last 72 hours.
3/5Wed
1 stopAlaska Airlines
8h 09mSTL-BZN
3/9Sun
1 stopAlaska Airlines
16h 26mBZN-STL
$316
6/17Tue
1 stopAlaska Airlines
10h 04mSTL-FCA
6/24Tue
1 stopAlaska Airlines
6h 56mFCA-STL
$318
1/27Mon
1 stopUnited Airlines
6h 06mSTL-MSO
1/30Thu
1 stopUnited Airlines
5h 08mMSO-STL
$324
1/23Thu
1 stopAlaska Airlines
8h 55mSTL-BIL
1/29Wed
1 stopAlaska Airlines
23h 19mBIL-STL
$326
2/16Sun
1 stopDelta
7h 11mSTL-FCA
2/20Thu
1 stopDelta
5h 39mFCA-STL
$348
2/16Sun
1 stopDelta
7h 11mSTL-FCA
2/20Thu
2 stopsDelta
10h 28mFCA-STL
$353
1/27Mon
1 stopUnited Airlines
6h 06mSTL-MSO
1/30Thu
2 stopsUnited Airlines
8h 08mMSO-STL
$356
5/4Sun
1 stopSouthwest
5h 55mSTL-BZN
5/11Sun
1 stopSouthwest
6h 40mBZN-STL
$436
5/4Sun
2 stopsSouthwest
9h 40mSTL-BZN
5/11Sun
1 stopSouthwest
6h 40mBZN-STL
$471
3/8Sat
1 stopAmerican Airlines
20h 01mSTL-BIL
3/13Thu
1 stopAmerican Airlines
7h 28mBIL-STL
$675

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Montana found on KAYAK in the last 72 hours.
2/18Tue
1 stopDelta
7h 11mSTL-FCA
$152
1/7Tue
1 stopDelta
7h 11mSTL-FCA
$159
2/23Sun
1 stopAlaska Airlines
7h 58mSTL-BZN
$163
1/7Tue
2 stopsDelta
8h 36mSTL-FCA
$164
3/3Mon
2 stopsAlaska Airlines
25h 18mSTL-BZN
$187
1/11Sat
1 stopDelta
6h 41mSTL-GTF
$198
2/23Sun
1 stopUnited Airlines
6h 45mSTL-BTM
$245
2/23Sun
3 stops
27h 03mSTL-BZN
$247
2/24Mon
2 stopsUnited Airlines
13h 06mSTL-BTM
$254
12/25Wed
2 stopsSouthwest
9h 20mSTL-BZN
$371

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Last minute flights from St. Louis to Montana

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Montana that are departing in the next 10 days.
12/23Mon
multi-stopUnited Airlines
6h 22mSTL-COD
12/25Wed
multi-stopUnited Airlines
5h 41mCOD-STL
$554
12/23Mon
multi-stopUnited Airlines
6h 22mSTL-COD
12/25Wed
multi-stopUnited Airlines
7h 47mCOD-STL
$559
12/25Wed
multi-stopDelta
14h 01mSTL-BIL
1/1Wed
multi-stopDelta
7h 29mBIL-STL
$593
12/25Wed
multi-stopDelta
14h 01mSTL-BIL
1/1Wed
multi-stopDelta
11h 27mBIL-STL
$658
12/25Wed
multi-stopUnited Airlines
8h 01mSTL-BZN
12/30Mon
multi-stopUnited Airlines
6h 57mBZN-STL
$705
12/25Wed
multi-stopUnited Airlines
7h 49mSTL-BIL
1/2Thu
multi-stopUnited Airlines
10h 21mBIL-STL
$707
12/25Wed
multi-stopUnited Airlines
6h 20mSTL-BZN
12/30Mon
multi-stopUnited Airlines
9h 47mBZN-STL
$710
12/23Mon
multi-stopUnited Airlines
15h 05mSTL-COD
12/25Wed
multi-stopUnited Airlines
7h 47mCOD-STL
$718
12/25Wed
multi-stopUnited Airlines
7h 49mSTL-BIL
1/2Thu
multi-stopUnited Airlines
7h 47mBIL-STL
$736
12/25Wed
multi-stopAlaska Airlines
10h 16mSTL-BIL
1/1Wed
multi-stopAlaska Airlines
16h 59mBIL-STL
$740

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Everything you need to know for your flight from St. Louis to Montana

Information on your arrival and departure airports

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