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$199+ 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.
STL — GTF
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This Trip.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:42 amSTL - GTF
2 stops35h 53mMultiple Airlines
Mon 12/2210:25 pmGTF - STL
1 stop22h 00mMultiple Airlines
Deal found 11/11$355
This Alaska Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amSTL - GTF
1 stop12h 55mAlaska Airlines
Tue 12/97:35 pmGTF - STL
1 stop17h 52mAlaska Airlines
Deal found 11/11$412
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:05 amSTL - GTF
2 stops11h 23mDelta
Tue 12/96:10 pmGTF - STL
1 stop5h 51mDelta
Deal found 11/11$502
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amSTL - GTF
1 stop12h 55mAlaska Airlines
Fri 1/27:21 pmGTF - STL
2 stops27h 30mAlaska Airlines
Deal found 11/12$542

Cheap flight deals from St. Louis to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$355
(Trip.com)

One-way from

$199
(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
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One-way flight from Lambert-St Louis to Great Falls
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Great Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from St. Louis to Great Falls that are best for you.

Fly from

St. Louis

Fly to

Great Falls

Route

Depart

Return

Price

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Fri 12/5

7:00 am-6:55 pm

1 stop12h 55m

Great Falls

Tue 12/9

7:35 pm-2:27 pm

1 stop17h 52m

$412

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Fri 3/6

6:10 am-5:28 pm

2 stops12h 18m

Great Falls

Tue 3/10

5:30 am-1:25 pm

1 stop6h 55m

$440

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Thu 12/18

10:42 am-9:35 pm

2 stops35h 53m

Great Falls

Mon 12/22

10:25 pm-10:33 pm

2 stops47h 08m

$456

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Sat 4/25

7:30 am-12:23 pm

1 stop5h 53m

Great Falls

Wed 4/29

6:20 pm-12:36 am

1 stop5h 16m

$466

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Fri 12/5

7:05 am-5:28 pm

2 stops11h 23m

Great Falls

Tue 12/9

6:10 pm-1:01 am

1 stop5h 51m

$502

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Thu 1/1

7:20 am-12:31 pm

1 stop6h 11m

$199

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Thu 1/1

8:05 am-10:46 pm

2 stops15h 41m

$428

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Thu 1/1

2:06 pm-6:41 pm

2 stops29h 35m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 insights into the airlines that provide service to Great Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Great Falls. Reviews last updated November 13, 2025.
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
9,017 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

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
9,017 reviews
United Airlines
7.4
Good
9,017 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

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

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?

    Airlines like Alaska Airlines and Delta fly from St. Louis to Great Falls in about 12h 18m. The time it takes to get you to your destination can typically vary by up to 37m. 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.

  • What are the cheapest airlines to fly from St. Louis to Great Falls one-way?

    The cheapest airlines for a one-way flight from St. Louis to Great Falls are Delta ($199), United Airlines ($428), and Alaska Airlines ($433).

  • 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.

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Top airline flying from St. Louis to Great Falls

Discover the top airline that operate flights from St. Louis to Great Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$637FlexibilityNo cancel feeOn-time69%

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