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Cheap flights from St. Louis to Great Falls from $344

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Great Falls departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Great Falls

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Great Falls that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Great Falls.

Cheap last minute flights

Planning a quick getaway from St. Louis to Great Falls? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Great Falls, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Great Falls

Find recent round-trip train or bus tickets from St. Louis to Great Falls.

All round-trip flight deals to Great Falls

The cheapest plane tickets to Great Falls found on KAYAK recently.
5:00 pm - 11:09 pmSTL-GTF
7h 09m1 stop
5:30 am - 1:18 pmGTF-STL
6h 48m1 stop
$344Delta
Find Deal
Fri, Jan 10 - Mon, Jan 13
12:00 pm - 11:19 pmSTL-GTF
12h 19m2 stops
5:30 am - 1:18 pmGTF-STL
6h 48m1 stop
$349Delta
Find Deal
Fri, Jan 10 - Mon, Jan 13
11:30 am - 9:36 pmSTL-GTF
11h 06m2 stops
2:20 pm - 2:14 pmGTF-STL
22h 54m2 stops
$450United Airlines
Find Deal
Fri, Jan 10 - Mon, Jan 13
8:35 am - 1:35 pmSTL-GTF
6h 00m1 stop
7:00 am - 10:16 pmGTF-STL
14h 16m1 stop
$535United Airlines
Find Deal
Thu, Dec 19 - Mon, Dec 23
10:35 am - 9:24 pmSTL-GTF
11h 49m2 stops
7:00 am - 10:16 pmGTF-STL
14h 16m1 stop
$540United Airlines
Find Deal
Thu, Dec 19 - Mon, Dec 23
10:35 am - 9:24 pmSTL-GTF
11h 49m2 stops
2:25 pm - 2:24 pmGTF-STL
22h 59m2 stops
$565United Airlines
Find Deal
Thu, Dec 19 - Mon, Dec 23
7:00 am - 3:28 pmSTL-GTF
9h 28m1 stop
4:08 pm - 11:59 pmGTF-STL
6h 51m1 stop
$625Alaska Airlines
Find Deal
Fri, Dec 6 - Mon, Dec 9
8:30 am - 9:27 pmSTL-GTF
13h 57m1 stop
2:30 pm - 3:34 pmGTF-STL
24h 04m2 stops
$674United Airlines
Find Deal
Fri, Dec 6 - Mon, Dec 9
7:00 am - 3:28 pmSTL-GTF
9h 28m1 stop
4:08 pm - 1:24 pmGTF-STL
20h 16m1 stop
$770Alaska Airlines
Find Deal
Fri, Dec 6 - Tue, Dec 10
5:05 am - 3:28 pmSTL-GTF
11h 23m2 stops
4:08 pm - 3:15 pmGTF-STL
22h 07m2 stops
$850Alaska Airlines
Find Deal
Fri, Dec 6 - Tue, Dec 10
5:30 pm - 9:24 pmSTL-GTF
28h 54m3 stops
$599United Airlines
Find Deal
Sat, Dec 21
6:25 am - 9:24 pmSTL-GTF
39h 59m2 stops
$606United Airlines
Find Deal
Sat, Dec 21
4:43 pm - 9:24 pmSTL-GTF
5h 41m1 stop
$614United Airlines
Find Deal
Sat, Dec 21

Alaska Airlines flights from St. Louis to Great Falls

Our best Alaska Airlines deals on St. Louis to Great Falls flight tickets
Alaska Airlines
Dec 6
STL7:00 amLambert-St Louis
9h 28m
1 stop
GTF3:28 pmGreat Falls
Dec 9
GTF4:08 pmGreat Falls
6h 51m
1 stop
STL11:59 pmLambert-St Louis
Alaska Airlines
Dec 6
STL7:00 amLambert-St Louis
9h 28m
1 stop
GTF3:28 pmGreat Falls
Dec 10
GTF4:08 pmGreat Falls
20h 16m
1 stop
STL1:24 pmLambert-St Louis
Alaska Airlines
Dec 6
STL5:05 amLambert-St Louis
11h 23m
2 stops
GTF3:28 pmGreat Falls
Dec 10
GTF4:08 pmGreat Falls
22h 07m
2 stops
STL3:15 pmLambert-St Louis

United Airlines flights from St. Louis to Great Falls

Our best United Airlines deals on St. Louis to Great Falls flight tickets
United Airlines
Jan 10
STL11:30 amLambert-St Louis
11h 06m
2 stops
GTF9:36 pmGreat Falls
Jan 13
GTF2:20 pmGreat Falls
22h 54m
2 stops
STL2:14 pmLambert-St Louis
United Airlines
Dec 19
STL8:35 amLambert-St Louis
6h 00m
1 stop
GTF1:35 pmGreat Falls
Dec 23
GTF7:00 amGreat Falls
14h 16m
1 stop
STL10:16 pmLambert-St Louis
United Airlines
Dec 19
STL10:35 amLambert-St Louis
11h 49m
2 stops
GTF9:24 pmGreat Falls
Dec 23
GTF7:00 amGreat Falls
14h 16m
1 stop
STL10:16 pmLambert-St Louis

See travel insights to Great Falls from

How to get the cheapest flight ticket from St. Louis to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Great Falls?

The month of October is another great option to travel to Great Falls, with average flight prices from St. Louis averaging around $506.

What is the cheapest day to depart on your flight to Great Falls?

The cheapest day to depart on your flight to Great Falls is on a Monday when prices can be found for as low as $0. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $700.

What is the cheapest time of day to depart on your flight to Great Falls?

According to our data, the cheapest time of day to fly to Great Falls is in the evening. momondo users have found flights departing from St. Louis to Great Falls in the evening for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $614 on average. Flights to Great Falls from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from St. Louis to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Great Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Great Falls (STL to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Great Falls

Best Price Found

$599

Fastest flight time

5h 41m

Direct flights

None

Airports in Great Falls

1 airport
The best one-way flight to Great Falls from St. Louis in the past 72 hours is $599. The best round-trip flight deal from St. Louis to Great Falls found on momondo in the last 72 hours is $344.
The fastest flight from St. Louis to Great Falls takes 5h 41m
There are no direct flights from St. Louis to Great Falls. Popular non-direct route for this connection is Lambert-St Louis Airport - Great Falls Airport.
There is 1 airport near Great Falls: Great Falls (GTF)

  • How far is Lambert-St Louis to Great Falls by plane?

    The distance between Lambert-St Louis and Great Falls is about 1222.4 mi. A reasonable flight in good conditions will take 6h 00m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Great Falls Airport?

    Prices for flights from Lambert-St Louis Airport to Great Falls Airport refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Great Falls Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Great Falls Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Great Falls Airport.

  • What documentation or ID do you need to fly to Great Falls Airport?

    The necessary travel and health documents for your Great Falls Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Great Falls?


Best airlines flying from St. Louis to Great Falls

Compare and see reviews for airlines that fly from St. Louis to Great Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $304Free CancellationRating
8.0
8,755 reviews
Search Delta flights
United AirlinesPriceFrom $388Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Great Falls?

It is quick and easy to find St. Louis to Great Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Great Falls that suits you.

Can I find flights from St. Louis to Great Falls with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Great Falls flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Great Falls?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Great Falls from St. Louis.

I’m not ready to book a flight from St. Louis to Great Falls right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Great Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Great Falls and let you know when they change.


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