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?

There is 1 operator available for flights from Lambert-St Louis Airport to Great Falls Airport as of January 2026.

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.

$134 Cheap Flights from St. Louis to Great Falls in 2026

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Find the cheapest flights from St. Louis to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:30 pm

STL

GTF

6h 30m

1 stop

6:22 pm - 12:21 am

GTF

STL

4h 59m

1 stop

$278Delta

Wed, Mar 4 - Wed, Mar 11

4:30 pm - 9:17 pm

STL

GTF

5h 47m

1 stop

6:15 am - 2:28 pm

GTF

STL

7h 13m

1 stop

$303United Airlines

Tue, Apr 28 - Sat, May 2

9:10 am - 9:17 pm

STL

GTF

13h 07m

2 stops

6:15 am - 2:28 pm

GTF

STL

7h 13m

1 stop

$309United Airlines

Tue, Apr 28 - Sat, May 2

11:25 am - 9:11 pm

STL

GTF

10h 46m

2 stops

2:30 pm - 8:41 pm

GTF

STL

5h 11m

1 stop

$344United Airlines

Wed, Mar 11 - Wed, Mar 18

7:56 pm - 6:12 pm

STL

GTF

23h 16m

1 stop

6:52 pm - 3:50 pm

GTF

STL

19h 58m

1 stop

$358Alaska Airlines

Mon, Jun 1 - Mon, Jun 8

7:00 am - 12:30 pm

STL

GTF

6h 30m

1 stop

5:30 am - 2:24 pm

GTF

STL

7h 54m

2 stops

$369Delta

Wed, Mar 4 - Wed, Mar 11

6:10 am - 5:33 pm

STL

GTF

12h 23m

2 stops

5:20 am - 2:54 pm

GTF

STL

8h 34m

2 stops

$399Delta

Wed, Feb 18 - Tue, Feb 24

9:10 am - 9:17 pm

STL

GTF

13h 07m

2 stops

6:15 am - 9:08 pm

GTF

STL

13h 53m

2 stops

$414United Airlines

Tue, Apr 28 - Sat, May 2

2:47 pm - 5:48 pm

STL

GTF

28h 01m

1 stop

4:57 pm - 8:55 am

GTF

STL

14h 58m

2 stops

$419Alaska Airlines

Fri, Feb 27 - Sun, Mar 1

4:13 pm - 5:48 pm

STL

GTF

26h 35m

2 stops

4:57 pm - 8:55 am

GTF

STL

14h 58m

2 stops

$424Alaska Airlines

Fri, Feb 27 - Sun, Mar 1

Alaska Airlines flights from St. Louis to Great Falls

Our best Alaska Airlines deals on St. Louis to Great Falls flight tickets

Alaska Airlines

Jun 1

STL7:56 pmLambert-St Louis

23h 16m

1 stop

GTF6:12 pmGreat Falls

Jun 8

GTF6:52 pmGreat Falls

19h 58m

1 stop

STL3:50 pmLambert-St Louis

$358

Alaska Airlines

Feb 27

STL2:47 pmLambert-St Louis

28h 01m

1 stop

GTF5:48 pmGreat Falls

Mar 1

GTF4:57 pmGreat Falls

14h 58m

2 stops

STL8:55 amLambert-St Louis

$419

Alaska Airlines

Feb 27

STL4:13 pmLambert-St Louis

26h 35m

2 stops

GTF5:48 pmGreat Falls

Mar 1

GTF4:57 pmGreat Falls

14h 58m

2 stops

STL8:55 amLambert-St Louis

$424

United Airlines flights from St. Louis to Great Falls

Our best United Airlines deals on St. Louis to Great Falls flight tickets

United Airlines

Apr 28

STL4:30 pmLambert-St Louis

5h 47m

1 stop

GTF9:17 pmGreat Falls

May 2

GTF6:15 amGreat Falls

7h 13m

1 stop

STL2:28 pmLambert-St Louis

$303

United Airlines

Apr 28

STL9:10 amLambert-St Louis

13h 07m

2 stops

GTF9:17 pmGreat Falls

May 2

GTF6:15 amGreat Falls

7h 13m

1 stop

STL2:28 pmLambert-St Louis

$309

United Airlines

Mar 11

STL11:25 amLambert-St Louis

10h 46m

2 stops

GTF9:11 pmGreat Falls

Mar 18

GTF2:30 pmGreat Falls

5h 11m

1 stop

STL8:41 pmLambert-St Louis

$344

Fly from

Fly to

Route

Depart

Return

Price

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Wed 3/4

7:00 am-12:30 pm

1 stop6h 30m

Great Falls

Wed 3/11

6:22 pm-12:21 am

1 stop4h 59m

$278

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Tue 4/28

4:30 pm-9:17 pm

1 stop5h 47m

Great Falls

Sat 5/2

6:15 am-2:28 pm

1 stop7h 13m

$303

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Tue 4/28

9:10 am-9:17 pm

2 stops13h 07m

Great Falls

Sat 5/2

6:15 am-2:28 pm

1 stop7h 13m

$309

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Wed 3/11

11:25 am-9:11 pm

2 stops10h 46m

Great Falls

Wed 3/18

2:30 pm-8:41 pm

1 stop5h 11m

$344

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Mon 6/1

7:56 pm-6:12 pm

1 stop23h 16m

Great Falls

Mon 6/8

6:52 pm-3:50 pm

1 stop19h 58m

$358

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Wed 3/4

7:00 am-12:30 pm

1 stop6h 30m

Great Falls

Wed 3/11

5:30 am-2:24 pm

2 stops7h 54m

$369

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Wed 2/18

6:10 am-5:33 pm

2 stops12h 23m

Great Falls

Tue 2/24

5:20 am-2:54 pm

2 stops8h 34m

$399

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Tue 4/28

9:10 am-9:17 pm

2 stops13h 07m

Great Falls

Sat 5/2

6:15 am-9:08 pm

2 stops13h 53m

$414

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Fri 2/27

2:47 pm-5:48 pm

1 stop28h 01m

Great Falls

Sun 3/1

4:57 pm-8:55 am

2 stops14h 58m

$419

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Fri 2/27

4:13 pm-5:48 pm

2 stops26h 35m

Great Falls

Sun 3/1

4:57 pm-8:55 am

2 stops14h 58m

$424

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 airline that flies from Lambert-St Louis to Great Falls?

Hawaiian Airlines and Alaska Airlines are the most popular carriers operating from Lambert-St Louis to Great Falls

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

Fastest flight time	5h 29m
Direct flights	None

The fastest flight from St. Louis to Great Falls takes 5h 29m

There are no direct flights from St. Louis to Great Falls. There are no popular flight routes from St. Louis to Great Falls.

Search flight deals

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 5h 29m.
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?
There is 1 operator available for flights from Lambert-St Louis Airport to Great Falls Airport as of January 2026.
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?
Based on momondo bookings for flights between St. Louis and Great Falls, the leading airline is United Airlines, making up 100% of the total bookings.

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
United Airlines	PriceFrom $293	Free Cancellation	Rating 7.4 9,215 reviews		Search United Airlines flights

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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.