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$314+ Cheap flights from St. Louis to Great Falls (STL - GTF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GTF
mar. 15 — mar. 221
sáb. 3/15
sáb. 3/22
1 adult, Economy
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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 marzo 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$404
(United Airlines)

Popular in

May

Cheapest in

November
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
Highest demand for flights based on searches. 19% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals

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 marzo 10, 2025.

This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/51:43 pmSTL - GTF
1 stop8h 30mUnited Airlines
sáb. 4/126:40 amGTF - STL
1 stop5h 07mUnited Airlines
Deal found 3/8$314
This Delta deal was found by Cheapflights users on 3/9. 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.
mié. 6/43:50 pmSTL - GTF
1 stop5h 42mDelta
mié. 6/116:00 amGTF - STL
1 stop4h 32mDelta
Deal found 3/9$497
This United deal was found by Cheapflights users on 3/9. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/228:20 amSTL - GTF
1 stop6h 10mMultiple Airlines
sáb. 3/293:52 pmGTF - STL
1 stop21h 23mMultiple Airlines
Deal found 3/9$886
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
sáb. 3/225:10 amSTL - GTF
2 stops11h 02mAlaska Airlines
sáb. 3/293:52 pmGTF - STL
2 stops30h 17mAlaska Airlines
Deal found 3/9$891

Find flights from St. Louis to Great Falls within your budget

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 marzo 10, 2025.

Fly from

St. Louis

Fly to

Great Falls

Route

Depart

Return

Price

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

sáb. 4/5

1:43 pm-9:13 pm

1 stop8h 30m

Great Falls

sáb. 4/12

6:40 am-12:47 pm

1 stop5h 07m

$314

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

mié. 6/4

3:50 pm-8:32 pm

1 stop5h 42m

Great Falls

mié. 6/11

6:00 am-11:32 am

1 stop4h 32m

$497

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

sáb. 3/22

8:20 am-1:30 pm

1 stop6h 10m

Great Falls

sáb. 3/29

3:52 pm-2:15 pm

1 stop21h 23m

$886

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

sáb. 3/22

5:10 am-3:12 pm

2 stops11h 02m

Great Falls

sáb. 3/29

3:52 pm-11:09 pm

2 stops30h 17m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Great Falls flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from St. Louis to Great Falls

Get recent, data-driven insights about flights from St. Louis to Great Falls including ideal travel times, pricing trends, and more.

Rainfall in Great Falls by month

Plan your trip to Great Falls by taking into account the average rainfall totals by month.

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.

Temperature in Great Falls by month

Plan your trip to Great Falls by taking into account the average temperature totals by month.

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).

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 marzo 10, 2025.
Alaska Airlines
8.0
Very good
9,727 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,727 reviews
Alaska Airlines
8.0
Very good
9,727 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
9,727 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,631 reviews
Alaska Airlines
8.0
Very good
9,727 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • What are the cheapest airlines flying from St. Louis to Great Falls round-trip?

    Flying on United Airlines is currently your cheapest option to Great Falls, with prices starting at $404. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $517 and $705, respectively. United Airlines is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Great Falls?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Great Falls (average of $367). Flying from St. Louis to Great Falls in June is currently the most expensive (average of $605). 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.

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Top 2 airlines flying from St. Louis to Great Falls

Discover the top 2 airlines 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 marzo 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$304Average$506FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$388Average$693FlexibilityNo cancel feeOn-time69%
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