How long is the flight from Montana to St. Louis?

A quick flight from Montana to St. Louis can take about 5h 04m. Delta provides one of the quickest options available for as low as $277. Montana and St. Louis are separated by a distance of 1163 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from Montana to St. Louis one-way?

The cheapest airlines for a one-way flight from Montana to St. Louis are Delta ($200), United Airlines ($207), and Southwest ($245).

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular routes from Montana to St. Louis?

The most popular route from Montana to St. Louis is Bozeman Gallatin Field - Lambert-St Louis. You may also consider Helena - Lambert-St Louis or Kalispell Glacier Park - Lambert-St Louis.

What are the most popular airlines that fly from Montana to St. Louis?

The most popular airlines flying from Montana to St. Louis are Delta, United Airlines and Southwest. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from MT to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montana to St. Louis as you normally would.

What airport do you fly into for flights to St. Louis from Montana?

Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Montana. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

Can I find deals for flights from Montana to St. Louis that include hotel bookings?

Yes. In addition to deals on Montana to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Montana to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to St. Louis.

Can I find deals for business class flights from Montana to St. Louis?

Yes. Cheapflights offers flight deals from Montana to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$200+ Flights from Montana to St. Louis

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Cheap flight deals from Montana to St. Louis

Round-trip from	$277 (Delta)
One-way from	$200 (Delta)
Popular in	March
Cheapest in	September
Average price	$359

From Montana to Lambert-St Louis

Search Deals

One-way flight from Montana to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($36 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Montana to St. Louis

Cheapest flights from Montana to St. Louis
Explore the most affordable flight options available from Montana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

mar. 10/146:20 pmBZN - STL

1 stop5h 04mDelta

mar. 10/217:05 amSTL - BZN

1 stop7h 14mDelta

Deal found 9/16

$277

jue. 12/42:37 pmFCA - STL

1 stop5h 20mUnited Airlines

sáb. 12/69:00 amSTL - FCA

1 stop5h 35mUnited Airlines

Deal found 9/16

$286

sáb. 11/83:02 pmBZN - STL

1 stop23h 16mAlaska Airlines

mar. 11/117:00 amSTL - BZN

1 stop8h 08mAlaska Airlines

Deal found 9/15

$291

mar. 12/26:06 pmFCA - STL

1 stop5h 43mDelta

sáb. 12/66:30 amSTL - FCA

1 stop6h 01mDelta

Deal found 9/16

$291

mié. 11/52:29 pmBZN - STL

1 stop6h 35mDelta

lun. 11/105:34 pmSTL - BZN

1 stop7h 00mDelta

Deal found 9/16

$292

mar. 12/26:06 pmFCA - STL

1 stop5h 43mDelta

dom. 12/76:30 amSTL - FCA

1 stop6h 01mDelta

Deal found 9/16

$298

jue. 12/45:00 amFCA - STL

2 stops11h 09mDelta

sáb. 12/611:19 amSTL - FCA

2 stops13h 01mDelta

Deal found 9/16

$301

vie. 11/142:30 pmBZN - STL

1 stop8h 10mDelta

dom. 11/166:00 amSTL - BZN

1 stop8h 25mDelta

Deal found 9/14

$307

mar. 10/145:06 pmFCA - STL

1 stop5h 52mUnited Airlines

sáb. 10/185:15 amSTL - FCA

1 stop5h 54mUnited Airlines

Deal found 9/16

$319

mié. 11/51:52 pmBZN - STL

2 stops17h 17mAmerican Airlines

lun. 11/105:17 amSTL - BZN

1 stop8h 45mAmerican Airlines

Deal found 9/14

$326

mar. 10/147:35 amBZN - STL

1 stop7h 45mSouthwest

mar. 10/211:30 pmSTL - BZN

2 stops8h 30mSouthwest

Deal found 9/14

$329

jue. 11/206:10 amFCA - STL

1 stop5h 29mUnited Airlines

sáb. 11/224:43 pmSTL - FCA

1 stop6h 01mUnited Airlines

Deal found 9/16

$338

Best flights from Montana to St. Louis
Discover carefully curated flight deals from Montana to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 16, 2025.

mar. 10/146:20 pmBZN - STL

1 stop5h 04mDelta

mar. 10/216:00 amSTL - BZN

1 stop8h 19mDelta

Deal found 9/14

$277

jue. 12/42:37 pmFCA - STL

1 stop5h 20mUnited Airlines

sáb. 12/69:00 amSTL - FCA

1 stop5h 35mUnited Airlines

Deal found 9/16

$286

sáb. 11/83:02 pmBZN - STL

1 stop23h 16mAlaska Airlines

mar. 11/117:00 amSTL - BZN

1 stop8h 08mAlaska Airlines

Deal found 9/16

$291

sáb. 11/81:31 pmBZN - STL

1 stop8h 27mAmerican Airlines

mar. 11/117:00 amSTL - BZN

1 stop7h 02mAmerican Airlines

Deal found 9/14

$292

mar. 10/147:35 amBZN - STL

1 stop7h 45mSouthwest

mar. 10/211:30 pmSTL - BZN

2 stops8h 30mSouthwest

Deal found 9/14

$329

sáb. 2/284:10 pmHLN - STL

1 stop6h 46mHawaiian Airlines

mar. 3/37:00 amSTL - HLN

1 stop9h 43mHawaiian Airlines

Deal found 9/15

$382

mar. 12/26:06 pmFCA - STL

1 stop5h 43mDelta

sáb. 12/66:30 amSTL - FCA

1 stop6h 01mDelta

Deal found 9/16

$291

mar. 10/145:06 pmFCA - STL

1 stop5h 52mUnited Airlines

sáb. 10/185:15 amSTL - FCA

1 stop5h 54mUnited Airlines

Deal found 9/16

$319

jue. 11/276:04 amBZN - STL

1 stop4h 55mDelta

mar. 12/27:56 pmSTL - BZN

1 stop5h 21mDelta

Deal found 9/15

$292

mié. 11/51:52 pmBZN - STL

2 stops17h 17mAmerican Airlines

lun. 11/105:17 amSTL - BZN

1 stop8h 45mAmerican Airlines

Deal found 9/14

$326

mar. 10/146:00 amBZN - STL

2 stops17h 03mAlaska Airlines

mar. 10/216:33 amSTL - BZN

1 stop8h 37mAlaska Airlines

Deal found 9/16

$341

mié. 12/1011:45 amBZN - STL

1 stop6h 21mDelta

dom. 12/147:56 pmSTL - BZN

1 stop5h 21mDelta

Deal found 9/16

$292

mié. 11/52:29 pmBZN - STL

1 stop6h 35mDelta

lun. 11/105:34 pmSTL - BZN

1 stop7h 00mDelta

Deal found 9/14

$292

jue. 10/95:06 pmFCA - STL

1 stop5h 52mUnited Airlines

dom. 10/125:15 amSTL - FCA

1 stop5h 54mUnited Airlines

Deal found 9/14

$373

jue. 12/45:00 amFCA - STL

2 stops11h 09mDelta

sáb. 12/65:00 pmSTL - FCA

1 stop7h 20mDelta

Deal found 9/16

$296

jue. 11/202:07 pmFCA - STL

1 stop8h 52mAlaska Airlines

sáb. 11/227:00 amSTL - FCA

1 stop13h 20mAlaska Airlines

Deal found 9/16

$403

mar. 12/26:06 pmFCA - STL

1 stop5h 43mDelta

dom. 12/76:30 amSTL - FCA

1 stop6h 01mDelta

Deal found 9/16

$298

mar. 10/76:18 pmHLN - STL

1 stop28h 45mAlaska Airlines

mar. 10/146:33 amSTL - HLN

1 stop12h 08mAlaska Airlines

Deal found 9/14

$405

mié. 10/16:02 amBIL - STL

1 stop6h 29mAmerican Airlines

mié. 10/13:59 pmSTL - BIL

1 stop6h 50mAmerican Airlines

Deal found 9/15

$450

mié. 10/155:10 pmMSO - STL

1 stop5h 48mUnited Airlines

lun. 11/39:00 amSTL - MSO

1 stop8h 01mUnited Airlines

Deal found 9/14

$451

mar. 10/144:12 pmMSO - STL

1 stop6h 51mAlaska Airlines

lun. 11/34:14 pmSTL - MSO

1 stop8h 29mAlaska Airlines

Deal found 9/14

$429

mié. 10/155:10 pmMSO - STL

1 stop5h 48mUnited Airlines

jue. 10/309:00 amSTL - MSO

1 stop5h 33mUnited Airlines

Deal found 9/14

$451

mar. 10/144:12 pmMSO - STL

1 stop6h 51mAlaska Airlines

mié. 10/297:00 amSTL - MSO

1 stop9h 24mAlaska Airlines

Deal found 9/14

$429

mié. 10/15:00 amBIL - STL

2 stops9h 44mUnited Airlines

mié. 10/14:50 pmSTL - BIL

1 stop6h 56mUnited Airlines

Deal found 9/15

$455

mar. 10/144:12 pmMSO - STL

1 stop6h 51mAlaska Airlines

mar. 10/287:00 amSTL - MSO

1 stop9h 24mAlaska Airlines

Deal found 9/14

$429

lun. 10/136:20 pmMSO - STL

1 stop5h 04mDelta

mié. 10/294:45 pmSTL - MSO

1 stop5h 55mDelta

Deal found 9/14

$415

sáb. 2/282:30 pmHLN - STL

1 stop5h 34mUnited Airlines

mar. 3/36:45 amSTL - HLN

2 stops7h 42mUnited Airlines

Deal found 9/13

$474

lun. 10/136:18 pmHLN - STL

1 stop28h 45mAlaska Airlines

mié. 10/153:57 pmSTL - HLN

1 stop26h 44mAlaska Airlines

Deal found 9/14

$435

lun. 10/136:20 pmMSO - STL

1 stop5h 04mDelta

lun. 11/34:45 pmSTL - MSO

1 stop5h 55mDelta

Deal found 9/14

$417

lun. 10/136:20 pmMSO - STL

1 stop5h 04mDelta

dom. 11/24:45 pmSTL - MSO

1 stop5h 55mDelta

Deal found 9/14

$417

Last-minute flights from Montana to St. Louis
Discover last-minute flight deals from Montana to St. Louis. Data last updated septiembre 16, 2025 and is based on user searches.

lun. 9/2910:10 pmMSO - STL

2 stops9h 56mMultiple Airlines

vie. 10/32:38 pmSTL - MSO

1 stop7h 58mMultiple Airlines

Deal found 9/14

$397

mié. 10/11:39 pmBZN - STL

1 stop7h 14mAmerican Airlines

dom. 10/57:16 amSTL - BZN

1 stop8h 51mAmerican Airlines

Deal found 9/16

$371

jue. 10/95:06 pmFCA - STL

1 stop5h 52mUnited Airlines

dom. 10/125:15 amSTL - FCA

1 stop5h 54mUnited Airlines

Deal found 9/14

$373

lun. 10/139:04 pmMSO - STL

2 stops11h 03mMultiple Airlines

vie. 10/312:42 pmSTL - MSO

1 stop7h 54mMultiple Airlines

Deal found 9/14

$403

mar. 10/146:20 pmBZN - STL

1 stop5h 04mDelta

mar. 10/217:05 amSTL - BZN

1 stop7h 14mDelta

Deal found 9/16

$277

mar. 10/145:06 pmFCA - STL

1 stop5h 52mUnited Airlines

sáb. 10/185:15 amSTL - FCA

1 stop5h 54mUnited Airlines

Deal found 9/16

$319

mar. 10/147:35 amBZN - STL

1 stop7h 45mSouthwest

mar. 10/211:30 pmSTL - BZN

2 stops8h 30mSouthwest

Deal found 9/14

$329

mar. 10/146:00 amBZN - STL

2 stops17h 03mAlaska Airlines

mar. 10/216:33 amSTL - BZN

1 stop8h 37mAlaska Airlines

Deal found 9/16

$341

mar. 10/142:07 pmMSO - STL

1 stop8h 56mMultiple Airlines

vie. 10/317:00 amSTL - MSO

1 stop9h 24mMultiple Airlines

Deal found 9/14

$387

mar. 10/142:33 pmMSO - STL

1 stop5h 13mUnited Airlines

vie. 10/319:00 amSTL - MSO

1 stop5h 33mUnited Airlines

Deal found 9/14

$390

jue. 10/166:00 amBZN - STL

1 stop6h 45mSouthwest

dom. 10/195:35 amSTL - BZN

1 stop5h 00mSouthwest

Deal found 9/16

$365

jue. 10/164:54 pmBZN - STL

1 stop6h 00mAmerican Airlines

dom. 10/196:00 amSTL - BZN

1 stop8h 08mAmerican Airlines

Deal found 9/16

$383

One-way flights from Montana to St. Louis
Search for one-way flight options from Montana to St. Louis. Find affordable one-way fares based on user searches. Data last updated septiembre 16, 2025.

mar. 11/252:51 pmFCA - STL

1 stop7h 32mDelta

Deal found 9/16

$200

vie. 10/105:54 pmBIL - STL

1 stop5h 04mUnited Airlines

Deal found 9/16

$207

dom. 3/13:35 pmBZN - STL

1 stop6h 40mSouthwest

Deal found 9/14

$245

dom. 3/13:45 pmBZN - STL

2 stops21h 07mAlaska Airlines

Deal found 9/14

$259

vie. 10/103:44 pmBIL - STL

2 stops31h 19mAlaska Airlines

Deal found 9/15

$299

mar. 11/2511:49 amFCA - STL

3 stops46h 12mMultiple Airlines

Deal found 9/16

$318

mié. 10/158:00 amBZN - STL

1 stop6h 44mUnited Airlines

Deal found 9/15

$399

dom. 3/13:25 pmBZN - STL

3 stops47h 01mMultiple Airlines

Deal found 9/14

$595

mié. 10/156:00 amBZN - STL

3 stops41h 03mMultiple Airlines

Deal found 9/15

$1,201

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montana to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

mar. 10/14

6:20 pm-12:24 am

1 stop5h 04m

Lambert-St Louis

mar. 10/21

6:00 am-1:19 pm

1 stop8h 19m

$277

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

jue. 12/4

2:37 pm-8:57 pm

1 stop5h 20m

Lambert-St Louis

sáb. 12/6

9:00 am-1:35 pm

1 stop5h 35m

$286

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

sáb. 11/8

3:02 pm-3:18 pm

1 stop23h 16m

Lambert-St Louis

mar. 11/11

7:00 am-2:08 pm

1 stop8h 08m

$291

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

mar. 12/2

6:06 pm-12:49 am

1 stop5h 43m

Lambert-St Louis

sáb. 12/6

6:30 am-11:31 am

1 stop6h 01m

$291

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

sáb. 11/8

1:31 pm-10:58 pm

1 stop8h 27m

Lambert-St Louis

mar. 11/11

7:00 am-1:02 pm

1 stop7h 02m

$292

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

jue. 11/27

6:04 am-11:59 am

1 stop4h 55m

Lambert-St Louis

mar. 12/2

7:56 pm-12:17 am

1 stop5h 21m

$292

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

mié. 12/10

11:45 am-7:06 pm

1 stop6h 21m

Lambert-St Louis

dom. 12/14

7:56 pm-12:17 am

1 stop5h 21m

$292

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

mié. 11/5

2:29 pm-10:04 pm

1 stop6h 35m

Lambert-St Louis

lun. 11/10

5:34 pm-11:34 pm

1 stop7h 00m

$292

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

jue. 12/4

5:00 am-5:09 pm

2 stops11h 09m

Lambert-St Louis

sáb. 12/6

5:00 pm-11:20 pm

1 stop7h 20m

$296

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

mar. 12/2

6:06 pm-12:49 am

1 stop5h 43m

Lambert-St Louis

dom. 12/7

6:30 am-11:31 am

1 stop6h 01m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 38 results

Best time to book a flight from Montana to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Montana with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Montana to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Montana to St. Louis (average of $311). Flying from Montana to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

What airport do you fly into for flights to St. Louis from Montana?
Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Montana. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.
How long is the flight from Montana to St. Louis?
A quick flight from Montana to St. Louis can take about 5h 04m. Delta provides one of the quickest options available for as low as $277. Montana and St. Louis are separated by a distance of 1163 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Montana to St. Louis one-way?
The cheapest airlines for a one-way flight from Montana to St. Louis are Delta ($200), United Airlines ($207), and Southwest ($245).
What are the most popular routes from Montana to St. Louis?
The most popular route from Montana to St. Louis is Bozeman Gallatin Field - Lambert-St Louis. You may also consider Helena - Lambert-St Louis or Kalispell Glacier Park - Lambert-St Louis.
Can I find deals for flights from Montana to St. Louis that include hotel bookings?
Yes. In addition to deals on Montana to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Montana to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to St. Louis.
Can I find deals for business class flights from Montana to St. Louis?
Yes. Cheapflights offers flight deals from Montana to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Montana to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Montana to St. Louis (average of $311). Flying from Montana to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Edwardsville

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

St. Peters

Chesterfield

Alton

Farmington

Festus

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Top 4 airlines flying from Montana to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$205	Average$435	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$268	Average$500	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$280	Average$384	FlexibilityNo cancel fee	On-time75%
Southwest	Cheapest$364	Average$437	FlexibilityNo cancel fee	On-time63%

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$200+ Cheap flights from Montana to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Montana to St. Louis

Keep the following information in mind while searching for Montana to St. Louis flight deals. Data was last updated septiembre 16, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Montana to St. Louis

Cheapest flights from Montana to St. LouisExplore the most affordable flight options available from Montana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

Explore the most affordable flight options available from Montana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montana to St. Louis that are best for you.

Best time to book a flight from Montana to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Montana with our price prediction graph.

Cheapflights Insights

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

What is the cheapest month to book a flight from Montana to St. Louis?

Related info for your journey

Find useful and relevant information for your journey from Montana to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Montana?

How long is the flight from Montana to St. Louis?

What are the cheapest airlines to fly from Montana to St. Louis one-way?

What are the most popular routes from Montana to St. Louis?

Can I find deals for flights from Montana to St. Louis that include hotel bookings?

How can I find direct flights from Montana to St. Louis?

Can I find deals for business class flights from Montana to St. Louis?

What is the cheapest month to book a flight from Montana to St. Louis?

Traveling to a place near St. Louis?

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Alternative routes for Montana to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Montana to St. Louis

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Cheapest flights from Montana to St. Louis
Explore the most affordable flight options available from Montana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.