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Find cheap flights from St. Louis to Montana from $138

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 7/12. 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
Wed 5/29
Wed 6/5

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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$307
Kalispell
Kalispell2 stops$397
Missoula
Missoula1 stop$193
Billings
Billings1 stop$258
Great Falls
Great Falls2 stops$496
Helena
Helena1 stop$438
West Yellowstone
West Yellowstone1 stop$1,554

Good to know

Low season

April

High season

July

Cheapest flight

$138
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from St. Louis to Billings

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 15% 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

 
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 10913 reviews
8.0Entertainment
8.2Boarding
8.6Crew
7.4Food
7.9Comfort
Airline reviews

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

8.0 ExcellentCynthia, Apr 2024TYS - ATL
Read more about Delta reviews

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

I felt thirsty and asked the flight attendent for water, but no one came for more than half an hour.

Everything went smooth. All flights were on time No changing gates, . No changing flights . It was like a completely different airlines tha n the last time I used Cathay Pacific . The last flight, 2 months ago, I had before this one was from Philippines also . I got changed in Manila and was told it only added 2 hours onto my flight . My 20 hour return trip ended up being 30 hours return with a 10.0 hour layover in New York with no seats anywhere . Everyone was sleeping or sitting on the floor . Unlike the hotel I was given in Manila to wait for this flight home . I never thought I would use Cathay Pacific again . But I did and this time you were great! I should have complained about the flight and layover from Hell a couple months ago. Consider that I am complaining about that august/23 flight now . Thank you got the great flying experience on my way home from philippines .

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

So so. Terrible aircraft choice for that leg of the flight.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Too bad that first class seats do not recline significantly causing discomfort

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

The boarding attendant was slightly rude when I asked about checking our stroller. Made me feel like I was bothering her.

My wife and I are both handicapped and at boarding they upgraded us to a seat closer to the front rather than all the way towards the back. Much appreciated.

Not much seat room, but that was unexpected. But the seat headrest was very uncomfortable.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries. They dont really bother you about carry-on size, I brought a descent sized backpack and they didnt even check.

Spirit canceled the flight in March and never notified me!

Seats suck, not enough room, overcrowded planes, hectic situation all together.

Pretty good. Would’ve been excellent if we would have left on time and the crew wasn’t late.

I do not like the customer service, I had an emergency and needed to cancel a pet reservation right after I had booked it and they would not do anything but issue a credit. I haven't flown in years as I have 7 kids and don't have spare time. I want my $125 back on my card please

Book cheap flights from St. Louis to Montana

Recent round-trip flight deals

6/4Tue
1 stopFrontier
16h 39mSTL-MSO
6/14Fri
1 stopFrontier
17h 22mMSO-STL
$193
6/7Fri
1 stopFrontier
21h 44mSTL-MSO
6/14Fri
1 stopFrontier
17h 22mMSO-STL
$252
6/4Tue
1 stopDelta
7h 54mSTL-BIL
6/10Mon
1 stopDelta
5h 19mBIL-STL
$258
5/15Wed
1 stopDelta
7h 54mSTL-BIL
5/18Sat
1 stopDelta
7h 02mBIL-STL
$288
7/20Sat
1 stopUnited Airlines
5h 51mSTL-BZN
7/30Tue
1 stopUnited Airlines
4h 46mBZN-STL
$319
6/22Sat
1 stopUnited Airlines
7h 08mSTL-BIL
6/29Sat
1 stopUnited Airlines
6h 50mBIL-STL
$326
9/17Tue
1 stopAmerican Airlines
7h 30mSTL-BZN
9/23Mon
1 stopAmerican Airlines
5h 27mBZN-STL
$335
9/14Sat
1 stopAmerican Airlines
7h 30mSTL-BZN
9/21Sat
1 stopAmerican Airlines
5h 28mBZN-STL
$355
9/14Sat
2 stopsAlaska Airlines
27h 44mSTL-BZN
9/21Sat
1 stopAlaska Airlines
6h 54mBZN-STL
$407
6/12Wed
1 stopAlaska Airlines
7h 51mSTL-MSO
6/18Tue
1 stopAlaska Airlines
8h 06mMSO-STL
$430

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Recent one-way flight deals

7/12Fri
1 stopSun Country Air
16h 29mSTL-BIL
$138
10/15Tue
1 stopAmerican Airlines
7h 27mSTL-BZN
$139
8/10Sat
1 stopAmerican Airlines
6h 15mSTL-BZN
$159
5/13Mon
1 stopDelta
5h 39mSTL-WYS
$162
10/10Thu
1 stopDelta
6h 06mSTL-BZN
$168
7/3Wed
1 stopFrontier
13h 11mSTL-MSO
$181
5/31Fri
3 stops
22h 04mSTL-BZN
$219
7/2Tue
3 stops
22h 12mSTL-FCA
$262
10/15Tue
2 stopsUnited Airlines
11h 12mSTL-BZN
$267
6/8Sat
1 stopUnited Airlines
7h 08mSTL-BIL
$269

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Last minute flights from St. Louis to Montana

Last minute flight, train and bus deals

5/3Fri
multi-stopFrontier
22h 57mSTL-MSO
5/6Mon
multi-stopFrontier
23h 44mMSO-STL
$258
5/2Thu
multi-stopAlaska Airlines
9h 14mSTL-BZN
5/5Sun
multi-stopAlaska Airlines
6h 50mBZN-STL
$617
5/3Fri
multi-stopUnited Airlines
8h 00mSTL-BZN
5/5Sun
multi-stopUnited Airlines
7h 29mBZN-STL
$657
5/3Fri
multi-stopAmerican Airlines
21h 50mSTL-BZN
5/5Sun
multi-stopAmerican Airlines
8h 29mBZN-STL
$677
5/4Sat
multi-stopUnited Airlines
30h 16mSTL-MSO
5/6Mon
multi-stopUnited Airlines
26h 54mMSO-STL
$677
5/4Sat
multi-stopUnited Airlines
20h 56mSTL-MSO
5/6Mon
multi-stopUnited Airlines
20h 08mMSO-STL
$682
5/4Sat
multi-stopUnited Airlines
5h 40mSTL-MSO
5/6Mon
multi-stopUnited Airlines
21h 18mMSO-STL
$700
5/1Wed
multi-stopDelta
8h 08mSTL-FCA
5/6Mon
multi-stopDelta
5h 25mFCA-STL
$712
5/1Wed
multi-stopDelta
14h 05mSTL-FCA
5/6Mon
multi-stopDelta
5h 25mFCA-STL
$717
5/3Fri
multi-stopAmerican Airlines
21h 50mSTL-BZN
5/5Sun
multi-stopAmerican Airlines
19h 22mBZN-STL
$876

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St. Louis - Montana Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Montana - St. Louis

Cabin classes: