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Find cheap flights from St. Louis to Montana from $76

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 9/4. 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.
1 adult
0 bags
Mon 7/8
Mon 7/15

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Best Montana Flight Deals

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

Bozeman
Bozeman1 stop$286
Kalispell
Kalispell1 stop$330
Missoula
Missoula1 stop$193
Billings
Billings1 stop$236
Great Falls
Great Falls1 stop$610
Helena
Helena1 stop$448
Butte
Butte2 stops$613

Good to know

Low season

January

High season

July

Cheapest flight

$76
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to Missoula

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 to Montana from St. Louis 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 to Montana with an airline and back to St. Louis 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 to Montana from St. Louis 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

  • Morning departure is around 8% cheaper 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

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.
8.0
DeltaOverall score based on 10333 reviews
8.6Crew
7.4Food
8.2Boarding
7.9Comfort
8.0Entertainment
Airline reviews

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

2.0 MediocreJim, Jun 2024ATL - ANC
Read more about Delta reviews

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Equipment swap led to 2+ hour delay on international flight. And to top it off, boarding took forever.

Wretched scheduling - they got themselves into a critical crew situation and didn’t try to address it until 15 minutes before they had to cancel my flight

They cancelled two flight and got us onto another airline, which was also delayed.

Terrible legroom, seats do not recline, tray table the size of an iPhone, delayed flight, have to pay 5$ to get a cup of water onboard.

Could have TV/Movie and some water ou soda free

Flight was good and clean but delayed over an hour on the return flight.

The non stop flight and able to go into Atlantic City airport. They could lower the prices. It starts out low but then if you want to bring luggage and pick your seat the price goes up quite a bit.

Flight got diwngraded last minute and left us stranded. I was told I’ll be given credit for my luggage and seat upgrades but haven’t got anything yet

We can’t predict circumstances like this ahead of time, but I give your staff a hats off for immediately giving us updated informations.

It was nice! There was a very unhappy child in front of us and the flight attendant did a great job calming the child. I was impressed.

The plane was not on time for boarding or departure or arrivals.

EVERYTHING WAS WONDERFUL HOSPITALITY THE HELP.THE SEATING FRIENDLY ALWAYS HAVE A GOOD RIDE NOT ONE BAD EXPERIENCE WITH THEM

This was the smoothest flight I have had in awhile. I was also offered an exit row seat for a great upgrade cost and was able to sleep almost thr whole flight due to comfort and a smooth flight. We left on time and arrived on time.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

Book cheap flights from St. Louis to Montana

Recent round-trip flight deals

9/21Sat
1 stopFrontier
10h 56mSTL-MSO
9/23Mon
1 stopFrontier
19h 36mMSO-STL
$193
6/20Thu
1 stopFrontier
23h 31mSTL-MSO
7/1Mon
1 stopFrontier
22h 39mMSO-STL
$228
8/17Sat
1 stopUnited Airlines
5h 16mSTL-BIL
8/21Wed
1 stopUnited Airlines
7h 21mBIL-STL
$236
9/1Sun
1 stopDelta
6h 22mSTL-BIL
9/7Sat
1 stopDelta
8h 03mBIL-STL
$258
9/1Sun
1 stopDelta
6h 22mSTL-BIL
9/7Sat
2 stopsDelta
8h 08mBIL-STL
$263
8/17Sat
2 stopsUnited Airlines
12h 47mSTL-BIL
8/21Wed
1 stopUnited Airlines
5h 06mBIL-STL
$321
9/11Wed
1 stopAlaska Airlines
9h 09mSTL-BZN
9/19Thu
1 stopAlaska Airlines
6h 54mBZN-STL
$326
10/12Sat
1 stopAlaska Airlines
10h 34mSTL-BZN
10/20Sun
1 stopAlaska Airlines
15h 58mBZN-STL
$336
8/24Sat
1 stopAmerican Airlines
8h 01mSTL-BZN
8/26Mon
1 stopAmerican Airlines
7h 17mBZN-STL
$352
8/7Wed
1 stopAmerican Airlines
7h 49mSTL-BZN
8/14Wed
2 stopsAmerican Airlines
14h 07mBZN-STL
$377

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Recent one-way flight deals

9/4Wed
1 stopFrontier
13h 11mSTL-MSO
$76
6/14Fri
1 stopFrontier
21h 43mSTL-MSO
$84
7/12Fri
1 stopDelta
6h 43mSTL-BIL
$118
8/10Sat
1 stopDelta
5h 20mSTL-BZN
$149
8/4Sun
1 stopSun Country Air
16h 42mSTL-FCA
$178
10/18Fri
1 stop
7h 22mSTL-MSO
$208
10/18Fri
1 stop
8h 46mSTL-BIL
$211
9/4Wed
2 stopsUnited Airlines
13h 02mSTL-MSO
$227
9/14Sat
1 stopAmerican Airlines
29h 51mSTL-FCA
$233
10/18Fri
2 stopsUnited Airlines
20h 50mSTL-BIL
$268

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Last minute flights from St. Louis to Montana

Last minute flight, train and bus deals

6/9Sun
multi-stopFrontier
23h 40mSTL-MSO
6/15Sat
multi-stopFrontier
22h 27mMSO-STL
$428
6/11Tue
multi-stopUnited Airlines
6h 21mSTL-MSO
6/18Tue
multi-stopUnited Airlines
18h 40mMSO-STL
$700
6/11Tue
multi-stopUnited Airlines
8h 57mSTL-MSO
6/18Tue
multi-stopUnited Airlines
18h 40mMSO-STL
$705
6/11Tue
multi-stopUnited Airlines
15h 39mSTL-MSO
6/18Tue
multi-stopUnited Airlines
21h 20mMSO-STL
$710
6/9Sun
multi-stopUnited Airlines
10h 30mSTL-MSO
6/15Sat
multi-stopUnited Airlines
8h 59mMSO-STL
$715
6/9Sun
multi-stopUnited Airlines
10h 30mSTL-MSO
6/15Sat
multi-stopUnited Airlines
9h 42mMSO-STL
$769
6/11Tue
multi-stopUnited Airlines
14h 04mSTL-MSO
6/18Tue
multi-stopUnited Airlines
14h 14mMSO-STL
$774

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St. Louis - Montana Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Montana - St. Louis

Cabin classes: