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Cheap flights from Great Falls to South America from $829

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to South America departing on 3/9. 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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Find the cheapest flights from Great Falls to South America

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:05 pm - 5:00 am
GTF
-
LIM
14h 55m2 stops
Delta Logo
1:30 pm - 12:24 pm
LIM
-
GTF
23h 54m2 stops
$829Delta
Mon, Mar 9 - Wed, Mar 18
United Airlines Logo
2:25 pm - 11:55 pm
GTF
-
LIM
31h 30m2 stops
United Airlines Logo
1:50 am - 9:33 pm
LIM
-
GTF
21h 43m2 stops
$843United Airlines
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
2:25 pm - 7:20 am
GTF
-
EZE
60h 55m2 stops
United Airlines Logo
11:55 pm - 9:33 pm
EZE
-
GTF
25h 38m2 stops
$1,537United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
6:15 am - 10:55 pm
GTF
-
LIM
15h 40m2 stops
United Airlines Logo
1:10 am - 9:11 pm
LIM
-
GTF
21h 01m3 stops
$5,592United Airlines
Mon, Mar 9 - Tue, Mar 17

Delta flights from Great Falls to South America

Our best Delta deals on Great Falls to South America flight tickets
Delta
Mar 9
GTF1:05 pmGreat Falls
14h 55m
2 stops
LIM5:00 amLima J Chavez Intl
Mar 18
LIM1:30 pmLima J Chavez Intl
23h 54m
2 stops
GTF12:24 pmGreat Falls
$829
Find similar
Delta
Dec 26
GTF5:30 amGreat Falls
25h 20m
1 stop
LIM8:50 amLima J Chavez Intl
Jan 4
LIM12:05 pmLima J Chavez Intl
12h 42m
1 stop
GTF10:47 pmGreat Falls
$2,194
Find similar
Delta
Dec 26
GTF6:18 pmGreat Falls
25h 22m
2 stops
LIM9:40 pmLima J Chavez Intl
Jan 4
LIM12:05 pmLima J Chavez Intl
12h 42m
1 stop
GTF10:47 pmGreat Falls
$2,199
Find similar

United Airlines flights from Great Falls to South America

Our best United Airlines deals on Great Falls to South America flight tickets
United Airlines
Feb 21
GTF2:25 pmGreat Falls
31h 30m
2 stops
LIM11:55 pmLima J Chavez Intl
Feb 24
LIM1:50 amLima J Chavez Intl
21h 43m
2 stops
GTF9:33 pmGreat Falls
$843
Find similar
United Airlines
Feb 20
GTF2:25 pmGreat Falls
60h 55m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Feb 24
EZE11:55 pmBuenos Aires Ministro Pistarini
25h 38m
2 stops
GTF9:33 pmGreat Falls
$1,537
Find similar
United Airlines
Dec 26
GTF6:15 amGreat Falls
23h 05m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Dec 28
EZE10:05 pmBuenos Aires Ministro Pistarini
28h 41m
2 stops
GTF10:46 pmGreat Falls
$1,708
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to South America 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, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Great Falls to South America that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Mon 3/9

1:05 pm-5:00 am

2 stops14h 55m

Lima J Chavez Intl

Wed 3/18

1:30 pm-12:24 pm

2 stops23h 54m

$829

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Sat 2/21

2:25 pm-11:55 pm

2 stops31h 30m

Lima J Chavez Intl

Tue 2/24

1:50 am-9:33 pm

2 stops21h 43m

$843

Great FallsBuenos Aires

GTF - EZE

GTFEZE

Great Falls

Fri 2/20

2:25 pm-7:20 am

2 stops60h 55m

Buenos Aires Ministro Pistarini

Tue 2/24

11:55 pm-9:33 pm

2 stops25h 38m

$1,537

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Mon 3/9

6:15 am-10:55 pm

2 stops15h 40m

Lima J Chavez Intl

Tue 3/17

1:10 am-9:11 pm

3 stops21h 01m

$5,592

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Great Falls to South America

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 day to depart on your flight to South America?

The cheapest day to depart from Great Falls to South America is on a Saturday when prices can be found for as low as $749. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Great Falls to South America for around $832.

Cheap Great Falls to South America flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to South America

Fastest flight time

14h 55m

Direct flights

None
The fastest flight from Great Falls to South America takes 14h 55m
There are no direct flights from Great Falls to South America. There are no popular flight routes from Great Falls to South America.
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  • When did momondo last update prices for flights from Great Falls Airport to South America?

    Prices for flights from Great Falls Airport to South America refresh daily.

  • How many operators does momondo search for flights from Great Falls Airport to South America?

  • How old do you have to be to fly from Great Falls Airport to South America?

    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 Great Falls Airport to South America.

  • What documentation or ID do you need to fly to South America?

    The required travel and health documents for your South America trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at South America. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Great Falls to South America

Compare and see reviews for airlines that fly from Great Falls to South America with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $735Free CancellationRating
7.9
8,014 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to South America?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Great Falls to South America. momondo saves you time and could save you money on your trip.

Can I find flights from Great Falls to South America with flexible booking policies on momondo?

momondo does allow users to show only those flights to South America from Great Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Great Falls to South America?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Great Falls to South America.

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

Price alerts on flights to South America from Great Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your South America trip

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Find better results for your trip to South America

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Popular flights according to clicks in the last 7 days on momondo
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