How many flights depart from Idaho to Missouri on average per week?

4 flights are operational weekly from Idaho to Missouri as of November 2026. The most popular departure day for this route is Mon, with 25% of flights per week taking off on this day.

What is the cheapest airline that flies from Idaho to Missouri?

Frontier, American Airlines, and Delta are the most popular carriers operating from Idaho to Missouri

What airlines fly to Missouri?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Missouri from Idaho according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Missouri. Keep in mind that there are 5 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

How long is the flight from Idaho to Missouri?

The flight from Idaho to Missouri depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Hailey (a popular airport in Idaho) to St. Louis (the most popular airport in Missouri), then the flight time is 5h 06m on average. If you fly from Idaho Falls (another popular airport in Idaho) to St. Louis, then the average flight time is 5h 17m.

When did momondo last update prices for flights from Idaho to Missouri?

Prices for flights from Idaho to Missouri refresh daily.

How many operators does momondo search for flights from Idaho to Missouri?

The number of operators available for flights from Idaho to Missouri is 5 as of November 2026.

How old do you have to be to fly from Idaho to Missouri?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Missouri.

What documentation or ID do you need to fly to Missouri?

The required travel and health documents for your Missouri 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 Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$185 Cheap Flights from Idaho to Missouri in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Missouri

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:53 pm - 12:35 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

15h 42m1 stop Las Vegas Harry Reid Intl

1:30 pm - 6:58 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

6h 28m1 stop Las Vegas Harry Reid Intl

$288Frontier

Sun, Feb 21 - Sun, Feb 28

7:53 pm - 12:35 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

15h 42m1 stop Las Vegas Harry Reid Intl

1:30 pm - 6:58 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

6h 28m1 stop Las Vegas Harry Reid Intl

$303Frontier

Thu, Jan 21 - Mon, Jan 25

5:15 am - 2:49 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

8h 34m1 stop Minneapolis St Paul

6:00 am - 12:42 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

7h 42m1 stop Minneapolis St Paul

$355Delta

Tue, Dec 1 - Tue, Dec 8

4:10 pm - 11:44 pmIDA Idaho Falls Fanning Field-MCI Kansas City

6h 34m1 stop Denver Intl

8:47 am - 1:37 pmMCI Kansas City-IDA Idaho Falls Fanning Field

5h 50m1 stop Denver Intl

$359United Airlines

Sun, Dec 6 - Sat, Dec 12

6:59 pm - 12:46 amIDA Idaho Falls Fanning Field-STL Lambert-St Louis

4h 47m1 stop Salt Lake City

12:31 pm - 10:07 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

10h 36m2 stops Minneapolis St Paul Salt Lake City

$364Delta

Mon, Dec 14 - Thu, Dec 17

8:00 am - 4:18 pmIDA Idaho Falls Fanning Field-MCI Kansas City

7h 18m1 stop Dallas/Fort Worth

2:48 pm - 11:02 pmMCI Kansas City-IDA Idaho Falls Fanning Field

9h 14m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$364American Airlines

Sun, Dec 6 - Sat, Dec 12

6:51 am - 7:54 pmIDA Idaho Falls Fanning Field-MCI Kansas City

12h 03m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

8:01 am - 5:05 pmMCI Kansas City-IDA Idaho Falls Fanning Field

10h 04m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$369American Airlines

Wed, Dec 2 - Wed, Dec 9

4:10 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

6h 49m1 stop Seattle/Tacoma Intl

6:04 am - 2:19 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

9h 15m1 stop Seattle/Tacoma Intl

$369Alaska Airlines

Mon, Dec 14 - Wed, Dec 16

6:15 am - 5:53 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

10h 38m2 stops Denver Intl Chicago O'Hare Intl

5:02 pm - 9:27 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

5h 25m1 stop Denver Intl

$374United Airlines

Tue, Dec 8 - Tue, Dec 15

6:37 am - 4:40 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

9h 03m1 stop Seattle/Tacoma Intl

4:32 pm - 11:59 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 27m1 stop Seattle/Tacoma Intl

$408Alaska Airlines

Sat, Dec 12 - Thu, Dec 24

Cheap last minute flights

Enter your travel dates to find the best prices.

1:24 pm - 10:40 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

8h 16m1 stop Chicago O'Hare Intl

6:46 pm - 11:49 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

6h 03m1 stop Dallas/Fort Worth

$476American Airlines

Tue, Nov 10 - Sat, Nov 21

2:51 pm - 9:01 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

5h 10m1 stop Denver Intl

3:10 pm - 10:51 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

8h 41m1 stop Chicago O'Hare Intl

$480United Airlines

Tue, Nov 10 - Sat, Nov 21

6:06 am - 5:49 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

10h 43m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

6:46 pm - 11:49 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

6h 03m1 stop Dallas/Fort Worth

$481American Airlines

Tue, Nov 10 - Sat, Nov 21

10:35 am - 4:11 pmIDA Idaho Falls Fanning Field-MCI Kansas City

4h 36m1 stop Denver Intl

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

5h 08m1 stop Denver Intl

$499United Airlines

Sat, Nov 14 - Sun, Nov 15

1:41 pm - 10:36 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

7h 55m1 stop Atlanta Hartsfield-Jackson

11:40 am - 11:59 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

13h 19m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$514Delta

Fri, Nov 13 - Tue, Nov 17

1:53 pm - 11:59 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

9h 06m1 stop Seattle/Tacoma Intl

6:00 am - 3:18 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

10h 18m1 stop Seattle/Tacoma Intl

$519Alaska Airlines

Thu, Nov 12 - Tue, Nov 17

1:11 pm - 11:24 pmIDA Idaho Falls Fanning Field-MCI Kansas City

9h 13m2 stops Salt Lake City Minneapolis St Paul

7:00 am - 12:15 pmMCI Kansas City-IDA Idaho Falls Fanning Field

6h 15m1 stop Salt Lake City

$524Delta

Fri, Nov 13 - Sun, Nov 15

1:45 pm - 8:40 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

5h 55m1 stop Las Vegas Harry Reid Intl

5:55 am - 12:05 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

7h 10m1 stop Phoenix Sky Harbor Intl

$529Southwest

Sat, Nov 14 - Wed, Nov 18

5:55 am - 4:20 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

9h 25m2 stops Las Vegas Harry Reid Intl Omaha Eppley Airfield

8:30 am - 3:10 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

7h 40m2 stops Kansas City Denver Intl

$539Southwest

Sat, Nov 14 - Wed, Nov 18

8:59 pm - 11:25 amBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

13h 26m2 stops Seattle/Tacoma Intl Dallas/Fort Worth

11:25 am - 11:49 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

13h 24m2 stops Dallas/Fort Worth Seattle/Tacoma Intl

$657Alaska Airlines

Thu, Nov 12 - Tue, Nov 17

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United Airlines flights from Idaho to Missouri

Our best United Airlines deals on Idaho to Missouri flight tickets

United Airlines

Dec 6

IDA4:10 pmIdaho Falls Fanning Field

6h 34m

1 stop

MCI11:44 pmKansas City

Dec 12

MCI8:47 amKansas City

5h 50m

1 stop

IDA1:37 pmIdaho Falls Fanning Field

$359

United Airlines

Dec 8

BOI6:15 amBoise Air Term. Gowen Fld

10h 38m

2 stops

SGF5:53 pmSpringfield-Branson

Dec 15

SGF5:02 pmSpringfield-Branson

5h 25m

1 stop

BOI9:27 pmBoise Air Term. Gowen Fld

$374

United Airlines

Dec 14

IDA2:40 pmIdaho Falls Fanning Field

5h 17m

1 stop

STL8:57 pmLambert-St Louis

Dec 17

STL8:41 amLambert-St Louis

5h 47m

1 stop

IDA1:28 pmIdaho Falls Fanning Field

$392

Frontier flights from Idaho to Missouri

Our best Frontier deals on Idaho to Missouri flight tickets

Frontier

Feb 21

BOI7:53 pmBoise Air Term. Gowen Fld

15h 42m

1 stop

MCI12:35 pmKansas City

Feb 28

MCI1:30 pmKansas City

6h 28m

1 stop

BOI6:58 pmBoise Air Term. Gowen Fld

$288

Frontier

Jan 21

BOI7:53 pmBoise Air Term. Gowen Fld

15h 42m

1 stop

MCI12:35 pmKansas City

Jan 25

MCI1:30 pmKansas City

6h 28m

1 stop

BOI6:58 pmBoise Air Term. Gowen Fld

$303

Frontier

Jan 21

BOI7:53 pmBoise Air Term. Gowen Fld

15h 42m

1 stop

MCI12:35 pmKansas City

Jan 25

MCI1:30 pmKansas City

6h 28m

1 stop

BOI6:58 pmBoise Air Term. Gowen Fld

$328

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseKansas City

BOI Boise Air Term. Gowen Fld - MCI Kansas City

BOIMCI

Boise Air Term. Gowen Fld

Sun 2/21

7:53 pm-12:35 pm

1 stop15h 42m

Kansas City

Sun 2/28

1:30 pm-6:58 pm

1 stop6h 28m

$288

BoiseKansas City

BOI Boise Air Term. Gowen Fld - MCI Kansas City

BOIMCI

Boise Air Term. Gowen Fld

Thu 1/21

7:53 pm-12:35 pm

1 stop15h 42m

Kansas City

Mon 1/25

1:30 pm-6:58 pm

1 stop6h 28m

$303

BoiseKansas City

BOI Boise Air Term. Gowen Fld - MCI Kansas City

BOIMCI

Boise Air Term. Gowen Fld

Tue 12/1

5:15 am-2:49 pm

1 stop8h 34m

Kansas City

Tue 12/8

6:00 am-12:42 pm

1 stop7h 42m

$355

Quickest round-trip

Idaho FallsKansas City

IDA Idaho Falls Fanning Field - MCI Kansas City

IDAMCI

Idaho Falls Fanning Field

Sun 12/6

4:10 pm-11:44 pm

1 stop6h 34m

Kansas City

Sat 12/12

8:47 am-1:37 pm

1 stop5h 50m

$359

Idaho FallsSt. Louis

IDA Idaho Falls Fanning Field - STL Lambert-St Louis

IDASTL

Idaho Falls Fanning Field

Mon 12/14

6:59 pm-12:46 am

1 stop4h 47m

Lambert-St Louis

Thu 12/17

12:31 pm-10:07 pm

2 stops10h 36m

$364

Idaho FallsKansas City

IDA Idaho Falls Fanning Field - MCI Kansas City

IDAMCI

Idaho Falls Fanning Field

Sun 12/6

8:00 am-4:18 pm

1 stop7h 18m

Kansas City

Sat 12/12

2:48 pm-11:02 pm

2 stops9h 14m

$364

Idaho FallsKansas City

IDA Idaho Falls Fanning Field - MCI Kansas City

IDAMCI

Idaho Falls Fanning Field

Wed 12/2

6:51 am-7:54 pm

2 stops12h 03m

Kansas City

Wed 12/9

8:01 am-5:05 pm

2 stops10h 04m

$369

BoiseSt. Louis

BOI Boise Air Term. Gowen Fld - STL Lambert-St Louis

BOISTL

Boise Air Term. Gowen Fld

Mon 12/14

4:10 pm-11:59 pm

1 stop6h 49m

Lambert-St Louis

Wed 12/16

6:04 am-2:19 pm

1 stop9h 15m

$369

BoiseSpringfield

BOI Boise Air Term. Gowen Fld - SGF Springfield-Branson

BOISGF

Boise Air Term. Gowen Fld

Tue 12/8

6:15 am-5:53 pm

2 stops10h 38m

Springfield-Branson

Tue 12/15

5:02 pm-9:27 pm

1 stop5h 25m

$374

BoiseSt. Louis

BOI Boise Air Term. Gowen Fld - STL Lambert-St Louis

BOISTL

Boise Air Term. Gowen Fld

Sat 12/12

6:37 am-4:40 pm

1 stop9h 03m

Lambert-St Louis

Thu 12/24

4:32 pm-11:59 pm

1 stop8h 27m

$408

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Missouri?

In general, October is the cheapest month to fly from Idaho to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $382. If you aren’t able to travel to Missouri during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $382.

Can stopping save me money on Idaho to Missouri flights?

You could potentially save up to 66% on your flight if you consider stops on a Idaho to Missouri flight.

Cheap Idaho to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Missouri

Best Price Found	$185
Fastest flight time	4h 35m
Direct flights	None

The best one-way flight to Missouri from Idaho in the past 72 hours is $185. The best round-trip flight deal from Idaho to Missouri found on momondo in the last 72 hours is $288.

The fastest flight from Idaho to Missouri takes 4h 35m

There are no direct flights from Idaho to Missouri. There are no popular flight routes from Idaho to Missouri.

Search flight deals

Frequently asked questions about flying from Idaho to Missouri

When did momondo last update prices for flights from Idaho to Missouri?
Prices for flights from Idaho to Missouri refresh daily.
How many operators does momondo search for flights from Idaho to Missouri?
The number of operators available for flights from Idaho to Missouri is 5 as of November 2026.
How old do you have to be to fly from Idaho to Missouri?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Missouri.
What documentation or ID do you need to fly to Missouri?
The required travel and health documents for your Missouri 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 Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to Missouri

Compare and see reviews for airlines that fly from Idaho to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $164	Free Cancellation	Rating 7.8 8,700 reviews	Search Delta flights
Southwest	PriceFrom $196	Free Cancellation	Rating 8.0 4,219 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $262	Free Cancellation	Rating 7.9 13,159 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $295	Free Cancellation	Rating 7.3 10,474 reviews	Search United Airlines flights
American Airlines	PriceFrom $328	Free Cancellation	Rating 7.0 12,228 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Missouri?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Missouri. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Idaho to Missouri with flexible booking policies on momondo?

Flights from Idaho to Missouri with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho to Missouri?

momondo provides multiple filters to help you find the best flight to Missouri from Idaho. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Idaho to Missouri right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Missouri from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.