Cheap flights from Great Falls to South America from $995

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 10/19. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 11:00 pm
GTF
-
LIM
39h 45m
2 stops
United Airlines Logo
12:55 am - 9:21 pm
LIM
-
GTF
45h 26m
2 stops
$995United Airlines
Mon, Oct 19 - Thu, Oct 22
United Airlines Logo
6:15 am - 9:25 pm
GTF
-
LIM
38h 10m
2 stops
United Airlines Logo
11:05 pm - 11:23 am
LIM
-
GTF
37h 18m
2 stops
$1,158United Airlines
Thu, Jun 11 - Thu, Jun 18
United Airlines Logo
2:37 pm - 8:00 am
GTF
-
EZE
38h 23m
2 stops
United Airlines Logo
9:00 pm - 9:34 pm
EZE
-
GTF
27h 34m
2 stops
$1,467United Airlines
Thu, Jul 16 - Sun, Jul 26
United Airlines Logo
2:31 pm - 8:00 am
GTF
-
EZE
38h 29m
2 stops
United Airlines Logo
9:00 pm - 9:28 pm
EZE
-
GTF
27h 28m
2 stops
$1,667United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
6:15 am - 11:00 pm
GTF
-
LIM
15h 45m
3 stops
United Airlines Logo
12:55 am - 9:34 pm
LIM
-
GTF
21h 39m
2 stops
$5,669United Airlines
Thu, Jun 11 - Wed, Jun 17
United Airlines Logo
6:15 am - 11:00 pm
GTF
-
LIM
15h 45m
3 stops
United Airlines Logo
12:55 am - 9:34 pm
LIM
-
GTF
21h 39m
3 stops
$6,331United Airlines
Thu, Jun 11 - Wed, Jun 17

United Airlines flights from Great Falls to South America

Our best United Airlines deals on Great Falls to South America flight tickets
United Airlines
Oct 19
GTF6:15 amGreat Falls
39h 45m
2 stops
LIM11:00 pmLima J Chavez Intl
Oct 22
LIM12:55 amLima J Chavez Intl
45h 26m
2 stops
GTF9:21 pmGreat Falls
$995
United Airlines
Jun 11
GTF6:15 amGreat Falls
38h 10m
2 stops
LIM9:25 pmLima J Chavez Intl
Jun 18
LIM11:05 pmLima J Chavez Intl
37h 18m
2 stops
GTF11:23 amGreat Falls
$1,158
United Airlines
Sep 11
GTF6:15 amGreat Falls
22h 45m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 15
EZE9:00 pmBuenos Aires Ministro Pistarini
27h 28m
2 stops
GTF9:28 pmGreat Falls
$1,649

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 May 1, 2026.
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

Cheapest round-trip

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Mon 10/19

6:15 am-11:00 pm

2 stops39h 45m

Lima J Chavez Intl

Thu 10/22

12:55 am-9:21 pm

2 stops45h 26m

$995

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Thu 6/11

6:15 am-9:25 pm

2 stops38h 10m

Lima J Chavez Intl

Thu 6/18

11:05 pm-11:23 am

2 stops37h 18m

$1,158

Great FallsBuenos Aires

GTF - EZE

GTFEZE

Great Falls

Thu 7/16

2:37 pm-8:00 am

2 stops38h 23m

Buenos Aires Ministro Pistarini

Sun 7/26

9:00 pm-9:34 pm

2 stops27h 34m

$1,467

Great FallsBuenos Aires

GTF - EZE

GTFEZE

Great Falls

Fri 9/11

2:31 pm-8:00 am

2 stops38h 29m

Buenos Aires Ministro Pistarini

Tue 9/15

9:00 pm-9:28 pm

2 stops27h 28m

$1,667
Quickest round-trip

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Thu 6/11

6:15 am-11:00 pm

3 stops15h 45m

Lima J Chavez Intl

Wed 6/17

12:55 am-9:34 pm

2 stops21h 39m

$5,669

Great FallsLima

GTF - LIM

GTFLIM

Great Falls

Thu 6/11

6:15 am-11:00 pm

3 stops15h 45m

Lima J Chavez Intl

Wed 6/17

12:55 am-9:34 pm

3 stops21h 39m

$6,331

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

34h 16m

Direct flights

None
The fastest flight from Great Falls to South America takes 34h 16m
There are no direct flights from Great Falls to South America. There are no popular flight routes from Great Falls to South America.

Frequently asked questions about flying from Great Falls to South America

  • 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 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.

Frequently asked questions about flying from Great Falls to South America

  • How do I get Price Alerts for flights from Great Falls to South America?

    Price Alerts will notify you by email when the price for flights to South America from Great Falls decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Great Falls to South America with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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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1 adult
Sun 5/31
Sun 6/7

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Popular cities in South America

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