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

STL — GTF
Dec 2 — Dec 92

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

Travelers have found that booking a Sunday departure is the best way to save up to 82% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from St. Louis to Great Falls?

September is one of the best times of the year to fly to Great Falls from St. Louis. Prices for September average $615 per person but you can even find prices for as low as $242. The most expensive prices can be found in the month of July. Opting for a September flight can save you 34% on your journey compared to booking in July

When is the cheapest time to fly from St. Louis to Great Falls (STL - GTF)?

It’s typically best to fly out from St. Louis to Great Falls in the afternoon. Doing so could potentially save you 64% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from St. Louis to Great Falls in November, December 2022

The best prices found for STL to GTF flights for November, December
Dec 3 - Dec 10
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$307

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 3 - Dec 7
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$344

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 4 - Dec 7
STL

Lambert-St Louis

GTF

Great Falls

1 stop

13h 49m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$396

Multiple Airlines

Pick Dates

Deal found 11/26

St. Louis to Great Falls 2022 flight deals

Cheap flights to Great Falls from St. Louis found for this year
Dec 3 - Dec 10
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$307

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 3 - Dec 7
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$344

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 4 - Dec 7
STL

Lambert-St Louis

GTF

Great Falls

1 stop

13h 49m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$396

Multiple Airlines

Pick Dates

Deal found 11/26

Cheap United Airlines flights from St. Louis to Great Falls

Dec 7 - Dec 14
STL

Lambert-St Louis

GTF

Great Falls

1 stop

14h 59m
GTF

Great Falls

STL

Lambert-St Louis

1 stop

12h 50m
$525

United Airlines

Pick Dates

Deal found 11/27

Dec 7 - Dec 14
STL

Lambert-St Louis

GTF

Great Falls

2 stops

27h 14m
GTF

Great Falls

STL

Lambert-St Louis

1 stop

12h 50m
$529

United Airlines

Pick Dates

Deal found 11/27

Dec 3 - Dec 10
STL

Lambert-St Louis

GTF

Great Falls

2 stops

21h 26m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

29h 05m
$534

United Airlines

Pick Dates

Deal found 11/26

Cheap Delta flights from St. Louis to Great Falls

Dec 7 - Dec 15
STL

Lambert-St Louis

GTF

Great Falls

2 stops

11h 54m
GTF

Great Falls

STL

Lambert-St Louis

1 stop

6h 08m
$683

Delta

Pick Dates

Deal found 11/27

Dec 7 - Dec 13
STL

Lambert-St Louis

GTF

Great Falls

2 stops

13h 14m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

9h 57m
$688

Delta

Pick Dates

Deal found 11/27

Dec 7 - Dec 15
STL

Lambert-St Louis

GTF

Great Falls

2 stops

13h 14m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

14h 29m
$749

Delta

Pick Dates

Deal found 11/27

Last minute flights from St. Louis to Great Falls

Late deals on return flights to Great Falls from St. Louis, departing today and this week
Dec 3 - Dec 10
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$307

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 3 - Dec 7
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$344

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 4 - Dec 7
STL

Lambert-St Louis

GTF

Great Falls

1 stop

13h 49m
GTF

Great Falls

STL

Lambert-St Louis

2 stops

21h 03m
$396

Multiple Airlines

Pick Dates

Deal found 11/26

One-way flights to Great Falls from St. Louis

The cheapest one-way flights from St. Louis to Great Falls
Dec 3
STL

Lambert-St Louis

GTF

Great Falls

1 stop

20h 00m
$84

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 3
STL

Lambert-St Louis

GTF

Great Falls

2 stops

19h 43m
$114

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 5
STL

Lambert-St Louis

GTF

Great Falls

2 stops

27h 08m
$240

Multiple Airlines

Pick Dates

Deal found 11/24

Related info for your journey

Useful info, stats and facts about St. Louis to Great Falls flights.

Which airlines flying from Lambert-St Louis to Great Falls have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Lambert-St Louis to Great Falls that may be offering flexible cancellation policies are United Airlines, Delta, and Undisclosed Carrier. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from St. Louis to Great Falls for under $700 on Cheapflights?

Yes, there are multiple flights from St. Louis to Great Falls for under $700. The cheapest flight booked recently is on United Airlines for just $686, but on average you can expect to pay $1,054.

Are there last-minute flights available from St. Louis to Great Falls for under $400?

There are currently 19+ open flights from St. Louis to Great Falls within the next 7 days for less than $400.

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 $686.

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

Before booking your flight from St. Louis to Great Falls check out the most popular airlines for this route: Undisclosed Carrier, Delta or Juneyao Airlines.

What are the cheapest flights from St. Louis to Great Falls?

Looking for the cheapest flight from St. Louis to Great Falls? While on average our users pay $623, our data indicates the cheapest price to be $436. The most popular route (Lambert-St Louis - Great Falls), is priced around $307.

Alternative routes for St. Louis to Great Falls

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

Top 2 airlines flying from St. Louis to Great Falls

The chart below displays the airlines Cheapflights users traveling from St. Louis to Great Falls choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$460Average$664FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
DeltaCheapest$577Average$597FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights