How does KAYAK find such low prices on flights from Missouri to Idaho Falls?

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 Missouri to Idaho Falls.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Missouri 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 Missouri to Idaho Falls?

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 to Idaho Falls with an airline and back to Missouri with another airline.

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

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 to Idaho Falls from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$200 CHEAP FLIGHTS from Missouri to Idaho Falls

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Flight Deals

Cheap Flights from Missouri to Idaho Falls

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Missouri to Idaho Falls

Wed, Mar 24 - Mon, Mar 29

7:30 am - 12:27 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

5h 57m1 stop Salt Lake City

6:45 pm - 12:36 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 51m1 stop Salt Lake City

$349Delta

Fri, Dec 25 - Mon, Dec 28

7:05 am - 12:28 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

6h 23m1 stop Salt Lake City

6:53 pm - 12:46 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 53m1 stop Salt Lake City

$349Delta

Thu, Nov 19 - Sun, Nov 22

5:45 am - 9:53 amMCI Kansas City-IDA Idaho Falls Fanning Field

5h 08m1 stop Denver Intl

5:30 pm - 11:52 pmIDA Idaho Falls Fanning Field-MCI Kansas City

5h 22m1 stop Denver Intl

$349United Airlines

Tue, Dec 22 - Sun, Dec 27

2:15 pm - 6:13 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

4h 58m1 stop Salt Lake City

5:40 am - 1:20 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

6h 40m1 stop Salt Lake City

$349Delta

Tue, Dec 22 - Mon, Dec 28

2:15 pm - 6:13 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

4h 58m1 stop Salt Lake City

6:53 pm - 12:46 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 53m1 stop Salt Lake City

$349Delta

Thu, Dec 24 - Tue, Dec 29

10:45 am - 9:19 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

11h 34m2 stops Chicago O'Hare Intl Denver Intl

2:37 pm - 9:08 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 31m1 stop Denver Intl

$354United Airlines

Thu, Dec 24 - Tue, Dec 29

2:25 pm - 9:19 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 54m1 stop Denver Intl

2:37 pm - 9:08 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 31m1 stop Denver Intl

$359United Airlines

Thu, Dec 24 - Thu, Dec 31

4:32 pm - 11:45 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

8h 13m1 stop Seattle/Tacoma Intl

6:00 am - 3:34 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 34m1 stop Seattle/Tacoma Intl

$392Alaska Airlines

Thu, Dec 24 - Wed, Dec 30

4:32 pm - 11:45 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

8h 13m1 stop Seattle/Tacoma Intl

6:00 am - 3:34 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 34m1 stop Seattle/Tacoma Intl

$392Alaska Airlines

Thu, Dec 24 - Mon, Dec 28

4:32 pm - 11:45 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

8h 13m1 stop Seattle/Tacoma Intl

6:00 am - 3:34 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 34m1 stop Seattle/Tacoma Intl

$392Alaska Airlines

Useful Info

Low season	March
High season	July
Cheapest flight	$200

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly and prices are also 1% lower on average.

Flight from Kansas City to Idaho Falls

How does KAYAK find such low prices on flights from Missouri to Idaho Falls?
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 Missouri to Idaho Falls.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Idaho Falls?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Missouri 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 Missouri to Idaho Falls?
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 to Idaho Falls with an airline and back to Missouri with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Idaho Falls?
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 to Idaho Falls from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.