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.

$180 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

Sat, Sep 26 - Fri, Oct 2

1:48 pm - 5:16 pmMCI Kansas City-IDA Idaho Falls Fanning Field

4h 28m1 stop Denver Intl

4:05 pm - 11:44 pmIDA Idaho Falls Fanning Field-MCI Kansas City

6h 39m1 stop Denver Intl

$399United Airlines

Fri, Oct 2 - Sat, Oct 3

6:00 am - 9:53 amMCI Kansas City-IDA Idaho Falls Fanning Field

4h 53m1 stop Denver Intl

5:51 pm - 11:15 pmIDA Idaho Falls Fanning Field-MCI Kansas City

4h 24m1 stop Denver Intl

$399United Airlines

Tue, Sep 29 - Sat, Oct 3

5:30 am - 9:53 amSGF Springfield-Branson-IDA Idaho Falls Fanning Field

5h 23m1 stop Denver Intl

5:51 pm - 11:42 pmIDA Idaho Falls Fanning Field-SGF Springfield-Branson

4h 51m1 stop Denver Intl

$399United Airlines

Sat, Sep 26 - Fri, Oct 2

7:30 am - 5:16 pmMCI Kansas City-IDA Idaho Falls Fanning Field

10h 46m2 stops Chicago O'Hare Intl Denver Intl

5:51 pm - 11:44 pmIDA Idaho Falls Fanning Field-MCI Kansas City

4h 53m1 stop Denver Intl

$404United Airlines

Thu, Oct 1 - Mon, Oct 5

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

1:50 pm - 8:57 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

6h 07m1 stop Chicago O'Hare Intl

$454American Airlines

Mon, Sep 28 - Fri, Oct 2

3:19 pm - 10:56 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

8h 37m1 stop Seattle/Tacoma Intl

2:01 pm - 11:59 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 58m1 stop Seattle/Tacoma Intl

$459Alaska Airlines

Thu, Oct 1 - Mon, Oct 5

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

1:50 pm - 8:57 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

6h 07m1 stop Chicago O'Hare Intl

$464American Airlines

Thu, Oct 1 - Mon, Oct 5

1:55 pm - 10:22 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

9h 27m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:57 pm - 12:44 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 47m1 stop Salt Lake City

$502Delta

Thu, Oct 1 - Mon, Oct 5

1:55 pm - 10:22 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

9h 27m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:57 pm - 12:44 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 47m1 stop Salt Lake City

$539Delta

Thu, Oct 1 - Mon, Oct 5

1:55 pm - 10:22 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

9h 27m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:57 pm - 12:44 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 47m1 stop Salt Lake City

$604Delta

Recent last minute flight deals from Missouri to Idaho Falls

Thu, Sep 17 - Mon, Sep 21

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

2:08 pm - 11:43 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 35m1 stop Dallas/Fort Worth

$518American Airlines

Thu, Sep 17 - Mon, Sep 21

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

2:08 pm - 11:43 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 35m1 stop Dallas/Fort Worth

$538American Airlines

Thu, Sep 17 - Mon, Sep 21

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

2:08 pm - 11:43 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 35m1 stop Dallas/Fort Worth

$576American Airlines

Thu, Sep 17 - Mon, Sep 21

5:10 am - 9:51 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

5h 41m1 stop Denver Intl

2:25 pm - 8:38 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 13m1 stop Denver Intl

$589United Airlines

Thu, Sep 17 - Mon, Sep 21

12:59 pm - 9:18 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

9h 19m2 stops Chicago O'Hare Intl Denver Intl

2:25 pm - 8:38 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 13m1 stop Denver Intl

$594United Airlines

Thu, Sep 17 - Sun, Sep 20

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

2:08 pm - 11:43 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 35m1 stop Dallas/Fort Worth

$639American Airlines

Thu, Sep 17 - Mon, Sep 21

12:59 pm - 9:18 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

9h 19m2 stops Chicago O'Hare Intl Denver Intl

2:25 pm - 8:38 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 13m1 stop Denver Intl

$650United Airlines

Thu, Sep 17 - Mon, Sep 21

12:59 pm - 9:18 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

9h 19m2 stops Chicago O'Hare Intl Denver Intl

2:25 pm - 8:38 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 13m1 stop Denver Intl

$670United Airlines

Thu, Sep 17 - Sun, Sep 20

5:43 am - 11:45 amSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 02m1 stop Dallas/Fort Worth

2:08 pm - 11:43 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

8h 35m1 stop Dallas/Fort Worth

$681American Airlines

Thu, Sep 17 - Mon, Sep 21

8:30 am - 3:23 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 53m2 stops Chicago O'Hare Intl Denver Intl

2:25 pm - 8:38 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

5h 13m1 stop Denver Intl

$715United Airlines

Useful Info

Low season	March
High season	July
Cheapest flight	$180

Best time to beat the crowds but there is an average 10% increase in price.

Most popular time to fly with an average 2% increase in price.

Flight from St. Louis 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.