How long is the flight from St. Louis to Great Falls?

Airlines like Delta and Alaska Airlines fly from St. Louis to Great Falls in about 5h 53m. The time it takes to get you to your destination can typically vary by up to 7h 02m. Airlines will cover a distance of 1212 mi. This flight may include one or multiple stops.

What is the cheapest airline to fly from St. Louis to Great Falls round-trip?

Flying on United Airlines is currently your cheapest option to Great Falls, with prices starting at $298.

In terms of precipitation, rainfall in Great Falls ranges from 0.5 - 2.5 inches per month. June is typically the wettest month, when rainfall can reach 2.5 in. January is typically the driest time to visit Great Falls when rainfall is around 0.5 in.

If weather is an important factor for your trip to Great Falls, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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

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

Most accurate provider : When it comes to deals on St. Louis-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Great Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Great Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

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

$171+ Cheap Flights from St. Louis to Great Falls

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to Great Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from St. Louis to Great Falls

Cheapest flights from St. Louis to Great Falls
Explore the most affordable flight options available from St. Louis to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.

mar. 12/167:00 amSTL - GTF

1 stop12h 55mAlaska Airlines

vie. 1/27:21 pmGTF - STL

1 stop20h 05mAlaska Airlines

Deal found 11/5

$469

Best flights from St. Louis to Great Falls
Discover carefully curated flight deals from St. Louis to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated noviembre 6, 2025.

sáb. 4/257:30 amSTL - GTF

1 stop5h 53mDelta

mié. 4/295:30 amGTF - STL

1 stop6h 51mDelta

Deal found 11/4

$466

mar. 12/167:00 amSTL - GTF

1 stop12h 55mAlaska Airlines

vie. 1/27:21 pmGTF - STL

1 stop20h 05mAlaska Airlines

Deal found 11/5

$469

Last-minute flights from St. Louis to Great Falls
Discover last-minute flight deals from St. Louis to Great Falls. Data last updated noviembre 6, 2025 and is based on user searches.

mar. 12/167:00 amSTL - GTF

1 stop12h 55mAlaska Airlines

vie. 1/27:21 pmGTF - STL

1 stop20h 05mAlaska Airlines

Deal found 11/5

$469

One-way flights from St. Louis to Great Falls
Search for one-way flight options from St. Louis to Great Falls. Find affordable one-way fares based on user searches. Data last updated noviembre 6, 2025.

jue. 1/17:20 amSTL - GTF

1 stop6h 11mDelta

Deal found 11/5

$171

jue. 1/18:05 amSTL - GTF

2 stops15h 41mUnited Airlines

Deal found 11/6

$348

Cheap flight deals from St. Louis to Great Falls

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$466 (Delta)
One-way from	$171 (Delta)

Provider with most accurate pricing for Lambert-St Louis-Great Falls flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Great Falls flights.

Search Deals

From Lambert-St Louis to Great Falls

Search Deals

One-way flight from Lambert-St Louis to Great Falls

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

sáb. 4/25

7:30 am-12:23 pm

1 stop5h 53m

Great Falls

mié. 4/29

5:30 am-1:21 pm

1 stop6h 51m

$466

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

mar. 12/16

7:00 am-6:55 pm

1 stop12h 55m

Great Falls

vie. 1/2

7:21 pm-4:26 pm

1 stop20h 05m

$469

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

jue. 1/1

7:20 am-12:31 pm

1 stop6h 11m

$171

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

jue. 1/1

8:05 am-10:46 pm

2 stops15h 41m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Compare providers for flights from St. Louis to Great Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Great Falls in November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Great Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Great Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from St. Louis 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.

Reviews of airlines servicing Great Falls

Get a feel of what it's like to fly with United Airlines from St. Louis to Great Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,007 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,007 reviews

United Airlines

7.4

Good

9,007 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from St. Louis to Great Falls?
Airlines like Delta and Alaska Airlines fly from St. Louis to Great Falls in about 5h 53m. The time it takes to get you to your destination can typically vary by up to 7h 02m. Airlines will cover a distance of 1212 mi. This flight may include one or multiple stops.
What is the cheapest airline to fly from St. Louis to Great Falls round-trip?
Flying on United Airlines is currently your cheapest option to Great Falls, with prices starting at $298.
Can I find deals for flights from St. Louis to Great Falls that include hotel bookings?
Yes. In addition to deals on St. Louis to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Great Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Great Falls.
Can I find deals for business class flights from St. Louis to Great Falls?
Yes. Cheapflights offers flight deals from St. Louis to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Shelby

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Great Falls

St. Louis to Bozeman flights

Kansas City to Kalispell flights

Kansas City to Bozeman flights

St. Louis to Kalispell flights

St. Louis to Billings flights

Kansas City to Billings flights

St. Louis to Missoula flights

Springfield to Bozeman flights

Kansas City to Great Falls flights

Springfield to Missoula flights

St. Louis to Butte flights

Kansas City to Missoula flights

Joplin to Bozeman flights

St. Louis to Cody flights

Kansas City to Cody flights

Columbia to Bozeman flights

Columbia to Missoula flights

Springfield to Helena flights

Springfield to Butte flights

Springfield to Billings flights

Joplin to Missoula flights

Springfield to Kalispell flights

Kansas City to West Yellowstone flights

Kansas City to Helena flights

St. Louis to Helena flights

Springfield to Great Falls flights

Springfield to West Yellowstone flights

Columbia to West Yellowstone flights

St. Louis to West Yellowstone flights

Other flights to Great Falls

Denver to Great Falls flights

Seattle to Great Falls flights

Salt Lake City to Great Falls flights

Great Falls to Las Vegas flights

Great Falls to Seattle flights

Great Falls to Salt Lake City flights

Great Falls to Seattle flights

Great Falls to Denver flights

Great Falls to Seattle flights

Great Falls to Phoenix-Mesa Gateway Airport flights

Great Falls to Salt Lake City flights

Great Falls to Denver flights

Top airline flying from St. Louis to Great Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$298	Average$637	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$171+ Cheap flights from St. Louis to Great Falls (STL - GTF)

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Great Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from St. Louis to Great Falls

Cheapest flights from St. Louis to Great FallsExplore the most affordable flight options available from St. Louis to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.

Explore the most affordable flight options available from St. Louis to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.

Cheap flight deals from St. Louis to Great Falls

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

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

Compare providers for flights from St. Louis to Great Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Great Falls in November.

Best time to book a flight from St. Louis to Great Falls

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

Reviews of airlines servicing Great Falls

Get a feel of what it's like to fly with United Airlines from St. Louis to Great Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from St. Louis to Great Falls?

What is the cheapest airline to fly from St. Louis to Great Falls round-trip?

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

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

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

Traveling to a place near Great Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Great Falls

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

Top airline flying from St. Louis to Great Falls

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Great Falls
Explore the most affordable flight options available from St. Louis to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.