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Cheap flights from St. Louis to Great Falls from $434

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 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Wed 4/24
Wed 5/1

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Easily compare round-trip flights from St. Louis to Great Falls

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Great Falls by changing tabs
United Airlines
Aug 27
STL9:30 amLambert-St Louis
12h 47m
2 stops
GTF9:17 pmGreat Falls
Sep 3
GTF2:25 pmGreat Falls
18h 42m
2 stops
STL10:07 amLambert-St Louis
Delta
Aug 13
STL3:30 pmLambert-St Louis
8h 19m
1 stop
GTF10:49 pmGreat Falls
Aug 21
GTF6:00 amGreat Falls
14h 29m
1 stop
STL9:29 pmLambert-St Louis
Alaska Airlines
May 17
STL7:41 pmLambert-St Louis
29h 14m
1 stop
GTF11:55 pmGreat Falls
May 24
GTF7:00 amGreat Falls
15h 59m
1 stop
STL11:59 pmLambert-St Louis
United Airlines
Aug 19
STL5:20 pmLambert-St Louis
21h 06m
2 stops
GTF1:26 pmGreat Falls
Aug 27
GTF2:25 pmGreat Falls
18h 42m
2 stops
STL10:07 amLambert-St Louis
Delta
Aug 13
STL6:30 amLambert-St Louis
17h 03m
2 stops
GTF10:33 pmGreat Falls
Aug 21
GTF6:00 amGreat Falls
14h 29m
1 stop
STL9:29 pmLambert-St Louis
United Airlines
Aug 19
STL8:05 amLambert-St Louis
14h 12m
2 stops
GTF9:17 pmGreat Falls
Aug 28
GTF2:30 pmGreat Falls
18h 37m
2 stops
STL10:07 amLambert-St Louis

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 AirlinesPriceFrom $305Free CancellationRating
7.4
11,325 reviews
Search United Airlines flights
DeltaPriceFrom $373Free CancellationRating
8.0
11,094 reviews
Search Delta flights

Delta flights from St. Louis to Great Falls

Our best Delta deals on St. Louis to Great Falls flight tickets
Delta
Aug 13
STL3:30 pmLambert-St Louis
8h 19m
1 stop
GTF10:49 pmGreat Falls
Aug 21
GTF6:00 amGreat Falls
14h 29m
1 stop
STL9:29 pmLambert-St Louis
Delta
Aug 13
STL6:30 amLambert-St Louis
17h 03m
2 stops
GTF10:33 pmGreat Falls
Aug 21
GTF6:00 amGreat Falls
14h 29m
1 stop
STL9:29 pmLambert-St Louis
Delta
Aug 17
STL3:30 pmLambert-St Louis
8h 19m
1 stop
GTF10:49 pmGreat Falls
Aug 28
GTF6:00 amGreat Falls
14h 29m
1 stop
STL9:29 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
Aug 27
STL9:30 amLambert-St Louis
12h 47m
2 stops
GTF9:17 pmGreat Falls
Sep 3
GTF2:25 pmGreat Falls
18h 42m
2 stops
STL10:07 amLambert-St Louis
United Airlines
Aug 19
STL5:20 pmLambert-St Louis
21h 06m
2 stops
GTF1:26 pmGreat Falls
Aug 27
GTF2:25 pmGreat Falls
18h 42m
2 stops
STL10:07 amLambert-St Louis
United Airlines
Aug 19
STL8:05 amLambert-St Louis
14h 12m
2 stops
GTF9:17 pmGreat Falls
Aug 28
GTF2:30 pmGreat Falls
18h 37m
2 stops
STL10:07 amLambert-St Louis

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 from St. Louis to Great Falls?

September. The cheapest time of year to fly to Great Falls from St. Louis is September. Most expensive is January

What is the cheapest day to depart St. Louis for Great Falls?

Friday. The cheapest day of the week is typically Friday. The most expensive is typically Sunday

When is the cheapest time to fly from St. Louis to Great Falls?

At noon. St. Louis to Great Falls flights are approximately 27% more expensive in the afternoon than at noon

What is the cheapest airline that flies to Great Falls from St. Louis?

United Airlines. Delta and United Airlines are the most popular carriers operating from St. Louis to Great Falls

What is the cheapest St. Louis to Great Falls flight route?

Lambert-St Louis - Great Falls. Fly from Lambert-St Louis to Great Falls for the best St. Louis - Great Falls flight prices

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

$434

Fastest flight time

5h 09m

Direct flights

None

Airports in Great Falls

1 airport
The best flight deal from St. Louis to Great Falls found on momondo in the last 72 hours is $434
The fastest flight from St. Louis to Great Falls takes 5h 09m
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 5h 09m.

  • 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.


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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From?
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Wed 4/24
Wed 5/1
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