$850 Find Cheap Flights from Idaho Falls to South America

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to South America departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Idaho Falls to South America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima2 stops$850
Buenos Aires
Buenos Aires2 stops$1,442
Lima
Lima2 stops$850
Buenos Aires
Buenos Aires2 stops$1,442

Book Cheap Idaho Falls to South America Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to South America that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho Falls to South America

ב', אוג' 10 - ב', אוג' 24
Delta Logo
6:50 pm - 10:00 pm
IDA
-
LIM
26h 10m
2 stops
Delta Logo
1:30 pm - 6:14 pm
LIM
-
IDA
29h 44m
2 stops
$850Delta
ו', מאי 8 - א', מאי 17
Azul Logo
5:26 pm - 9:25 pm
IDA
-
LIM
26h 59m
2 stops
Azul Logo
11:05 pm - 9:55 am
LIM
-
IDA
35h 50m
2 stops
$971Azul
ג', מרץ 24 - ד', אפר' 8
Delta Logo
6:55 pm - 9:40 pm
IDA
-
LIM
25h 45m
2 stops
Delta Logo
1:30 pm - 6:15 pm
LIM
-
IDA
29h 45m
2 stops
$1,080Delta
ג', מרץ 24 - ג', אפר' 7
United Airlines Logo
5:30 pm - 10:55 pm
IDA
-
LIM
28h 25m
2 stops
United Airlines Logo
12:55 am - 9:53 am
LIM
-
IDA
57h 58m
2 stops
$1,101United Airlines
ג', מרץ 24 - ד', אפר' 8
United Airlines Logo
6:36 am - 10:55 pm
IDA
-
LIM
39h 19m
2 stops
United Airlines Logo
11:05 pm - 9:53 am
LIM
-
IDA
35h 48m
2 stops
$1,109United Airlines
ג', אפר' 7 - ג', אפר' 28
Multiple Airlines Logo
6:45 am - 8:00 am
IDA
-
EZE
22h 15m
2 stops
Multiple Airlines Logo
9:00 pm - 3:39 pm
EZE
-
IDA
21h 39m
2 stops
$1,442Multiple Airlines
ש', מרץ 14 - ד', מרץ 18
Delta Logo
5:45 am - 9:35 am
IDA
-
EZE
48h 50m
2 stops
Delta Logo
11:00 am - 10:16 pm
EZE
-
IDA
38h 16m
2 stops
$1,484Delta
ג', אפר' 7 - ג', אפר' 28
LATAM Airlines Logo
1:10 pm - 9:45 am
IDA
-
EZE
17h 35m
2 stops
LATAM Airlines Logo
7:45 am - 12:26 pm
EZE
-
IDA
31h 41m
3 stops
$1,554LATAM Airlines
ש', מרץ 14 - ד', מרץ 18
American Airlines Logo
2:18 pm - 8:20 am
IDA
-
EZE
15h 02m
1 stop
American Airlines Logo
10:25 pm - 1:48 pm
EZE
-
IDA
18h 23m
1 stop
$1,776American Airlines
ש', מרץ 14 - ד', מרץ 18
Multiple Airlines Logo
5:20 pm - 8:20 am
IDA
-
EZE
36h 00m
2 stops
Multiple Airlines Logo
10:25 pm - 1:48 pm
EZE
-
IDA
18h 23m
1 stop
$1,819Multiple Airlines
Booking Insights

KAYAK's insights & trends for Idaho Falls to South America flights

Get data-powered insights and trends into flights from Idaho Falls to South America to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Idaho Falls to South America?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Idaho Falls to South America were found on Delta ($850) and Azul ($971).

Find deals

Good to know

Cheapest flight$850
Flight from Idaho Falls to Lima

FAQs - booking South America flights

  • How does KAYAK find such low prices on flights from Idaho Falls to South America?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to South America.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to South America?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho Falls to South America is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to South America?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Idaho Falls to South America with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to South America?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Idaho Falls to South America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Idaho Falls to South America

 
Need help choosing which airline to fly with from Idaho Falls to South America? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8245 reviews
7.2Food
8.5Crew
7.9Comfort
8.1Boarding
7.8Entertainment
Airline reviews

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

8.0 ExcellentSharon, Feb 2026
CVG - ATL
Read more Delta reviews

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

Everything you need to know for your flight to South America

Information on your arrival and departure airports

Idaho Falls (IDA)