$548 Find Cheap Flights from Idaho Falls to South America

This is the cheapest one-way 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 1/2. 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

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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
Lima1 stop$825
Buenos Aires
Buenos Aires2 stops$1,440
Lima
Lima1 stop$825
Buenos Aires
Buenos Aires2 stops$1,440

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

Sat, Dec 6 - Wed, Dec 10
Delta Logo
1:17 pm - 8:50 amIDA-LIM
17h 33m1 stop
Delta Logo
12:05 pm - 10:21 pmLIM-IDA
12h 16m1 stop
$825Delta
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Sat, Dec 6 - Tue, Dec 9
Delta Logo
1:17 pm - 5:00 amIDA-LIM
13h 43m2 stops
Delta Logo
12:05 am - 10:21 pmLIM-IDA
24h 16m2 stops
$830Delta
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Mon, Oct 27 - Mon, Nov 3
United Airlines Logo
2:45 pm - 11:55 pmIDA-LIM
32h 10m2 stops
United Airlines Logo
1:50 am - 9:48 amLIM-IDA
33h 58m2 stops
$1,107United Airlines
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Mon, Oct 27 - Tue, Nov 4
Delta Logo
6:53 pm - 9:20 pmIDA-LIM
25h 27m2 stops
Delta Logo
11:40 pm - 10:15 pmLIM-IDA
24h 35m2 stops
$1,156Delta
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Sun, Nov 23 - Thu, Dec 4
United Airlines Logo
5:00 am - 9:20 amIDA-EZE
24h 20m2 stops
United Airlines Logo
10:05 pm - 3:24 pmEZE-IDA
21h 19m2 stops
$1,440United Airlines
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Sun, Dec 7 - Wed, Dec 10
Delta Logo
7:06 pm - 6:05 amIDA-EZE
30h 59m2 stops
Delta Logo
4:05 am - 10:21 pmEZE-IDA
22h 16m2 stops
$1,466Delta
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Sun, Nov 23 - Wed, Dec 3
American Airlines Logo
1:58 pm - 8:20 amIDA-EZE
14h 22m1 stop
American Airlines Logo
10:30 pm - 1:27 pmEZE-IDA
18h 57m1 stop
$1,536American Airlines
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Sun, Nov 23 - Wed, Dec 3
American Airlines Logo
1:58 pm - 8:20 amIDA-EZE
14h 22m1 stop
American Airlines Logo
10:30 pm - 10:36 pmEZE-IDA
28h 06m2 stops
$1,540American Airlines
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Sat, Nov 22 - Fri, Nov 28
United Airlines Logo
4:15 pm - 11:55 pmIDA-LIM
53h 40m2 stops
United Airlines Logo
1:50 am - 2:03 amLIM-IDA
26h 13m2 stops
$1,544United Airlines
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Sun, Nov 23 - Thu, Dec 4
American Airlines Logo
1:58 pm - 8:20 amIDA-EZE
14h 22m1 stop
American Airlines Logo
10:30 pm - 1:27 pmEZE-IDA
18h 57m1 stop
$1,566American Airlines
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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 fly non-stop between Idaho Falls and South America?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Idaho Falls to South America.

There is just one airline that flies from Idaho Falls to South America direct and that is Delta. The best round-trip deal found from Delta for the route is to Lima (LIM) and costs $753.

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 ($825) and United Airlines ($1,107).

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Good to know

Cheapest flight$548
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.

  • What is the cheapest time of day to fly to South America?

    The cheapest time of day to fly to South America is generally in the morning, when round-trip flights cost $892 on average. The most expensive time of day to fly to South America is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,491.

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 7969 reviews
8.2Boarding
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
Airline reviews

The flight was great. The gate location was way to far away!!!

10.0 ExcellentLauren, Oct 2025JFK - PBI
Read more Delta reviews

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

Cramped seating for me. Luckily it wasn’t a long flight

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

The airport was reasonably clean. The boarding process reasonably efficient. The cabin crew was efficient, polite but not that friendly. The food quality was unremarkable and the choices were awful . There was either a so so chicken dish or a “ vegetarian “ option which was really cheap carbohydrates drowned in cheese. Signing onto i flight wifi was not straightforward. Overall it was a very average experience

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Everything you need to know for your flight to South America

Information on your arrival and departure airports

Idaho Falls (IDA)

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