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 48% 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.

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

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating from Idaho to Missouri

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 Idaho Falls (a popular airport in Idaho) to Kansas City (the most popular airport in Missouri), then the flight time is 4h 22m on average. If you fly from Boise (another popular airport in Idaho) to Kansas City, then the average flight time is 4h 56m.

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 December 2025.

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.

$128 Cheap Flights from Idaho to Missouri in 2025/26

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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.

3:01 pm - 11:27 pm

BOI

MCI

7h 26m1 stop

6:30 am - 10:24 am

MCI

BOI

4h 54m1 stop

$197Delta

Thu, Jan 8 - Sun, Jan 11

9:00 am - 4:02 pm

BOI

MCI

6h 02m1 stop

4:56 pm - 11:57 pm

MCI

BOI

8h 01m1 stop

$219Alaska Airlines

Thu, Jan 1 - Mon, Jan 5

2:48 pm - 11:59 pm

BOI

MCI

8h 11m1 stop

11:55 am - 7:25 pm

MCI

BOI

8h 30m1 stop

$226American Airlines

Thu, Jan 8 - Sun, Jan 11

5:00 am - 3:05 pm

GEG

MCI

8h 05m1 stop

2:45 pm - 9:25 pm

MCI

GEG

8h 40m1 stop

$236Alaska Airlines

Tue, Jan 27 - Fri, Jan 30

5:00 am - 7:47 pm

GEG

MCI

12h 47m2 stops

5:10 pm - 9:22 pm

MCI

GEG

6h 12m1 stop

$242United Airlines

Tue, Jan 27 - Fri, Jan 30

10:15 am - 8:33 pm

BOI

MCI

9h 18m2 stops

5:10 pm - 9:52 pm

MCI

BOI

5h 42m1 stop

$265United Airlines

Sat, Jan 17 - Mon, Jan 19

8:58 pm - 11:33 pm

GEG

MCI

24h 35m1 stop

7:00 am - 8:08 pm

MCI

GEG

15h 08m1 stop

$267Multiple Airlines

Sun, Feb 1 - Thu, Feb 5

6:40 am - 4:30 pm

BOI

MCI

8h 50m2 stops

6:30 am - 10:20 am

MCI

BOI

4h 50m1 stop

$273Southwest

Thu, Jan 8 - Sun, Jan 11

1:34 pm - 11:55 am

IDA

MCI

21h 21m1 stop

7:00 am - 2:19 pm

MCI

IDA

8h 19m1 stop

$284Multiple Airlines

Sun, Jan 11 - Fri, Jan 23

2:03 pm - 11:46 pm

GEG

SGF

7h 43m1 stop

6:29 pm - 10:22 pm

SGF

GEG

5h 53m1 stop

$555American Airlines

Mon, May 18 - Mon, May 25

Alaska Airlines flights from Idaho to Missouri

Our best Alaska Airlines deals on Idaho to Missouri flight tickets

Alaska Airlines

Jan 1

BOI9:00 amBoise Air Term. Gowen Fld

6h 02m

1 stop

MCI4:02 pmKansas City

Jan 5

MCI4:56 pmKansas City

8h 01m

1 stop

BOI11:57 pmBoise Air Term. Gowen Fld

$219

Find similar

Alaska Airlines

Jan 27

GEG1:38 pmSpokane

22h 12m

1 stop

MCI1:50 pmKansas City

Jan 31

MCI3:32 pmKansas City

7h 53m

1 stop

GEG9:25 pmSpokane

$236

Find similar

Alaska Airlines

Jan 11

BOI5:55 pmBoise Air Term. Gowen Fld

20h 10m

2 stops

MCI3:05 pmKansas City

Jan 15

MCI2:45 pmKansas City

9h 16m

1 stop

BOI11:01 pmBoise Air Term. Gowen Fld

$255

Find similar

Delta flights from Idaho to Missouri

Our best Delta deals on Idaho to Missouri flight tickets

Delta

Jan 8

BOI3:01 pmBoise Air Term. Gowen Fld

7h 26m

1 stop

MCI11:27 pmKansas City

Jan 11

MCI6:30 amKansas City

4h 54m

1 stop

BOI10:24 amBoise Air Term. Gowen Fld

$197

Find similar

Delta

Jan 12

GEG2:00 pmSpokane

7h 27m

1 stop

MCI11:27 pmKansas City

Jan 19

MCI7:00 amKansas City

7h 37m

1 stop

GEG12:37 pmSpokane

$237

Find similar

Delta

Jan 17

GEG9:20 amSpokane

10h 15m

2 stops

STL9:35 pmLambert-St Louis

Jan 18

STL6:35 amLambert-St Louis

14h 05m

2 stops

GEG6:40 pmSpokane

$256

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Thu 1/8

3:01 pm-11:27 pm

1 stop7h 26m

Kansas City

Sun 1/11

6:30 am-10:24 am

1 stop4h 54m

$197

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Thu 1/1

9:00 am-4:02 pm

1 stop6h 02m

Kansas City

Mon 1/5

4:56 pm-11:57 pm

1 stop8h 01m

$219

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Thu 1/8

2:48 pm-11:59 pm

1 stop8h 11m

Kansas City

Sun 1/11

11:55 am-7:25 pm

1 stop8h 30m

$226

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Tue 1/27

5:00 am-3:05 pm

1 stop8h 05m

Kansas City

Fri 1/30

2:45 pm-9:25 pm

1 stop8h 40m

$236

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Tue 1/27

5:00 am-7:47 pm

2 stops12h 47m

Kansas City

Fri 1/30

5:10 pm-9:22 pm

1 stop6h 12m

$242

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Sat 1/17

10:15 am-8:33 pm

2 stops9h 18m

Kansas City

Mon 1/19

5:10 pm-9:52 pm

1 stop5h 42m

$265

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Sun 2/1

8:58 pm-11:33 pm

1 stop24h 35m

Kansas City

Thu 2/5

7:00 am-8:08 pm

1 stop15h 08m

$267

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Thu 1/8

6:40 am-4:30 pm

2 stops8h 50m

Kansas City

Sun 1/11

6:30 am-10:20 am

1 stop4h 50m

$273

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Sun 1/11

1:34 pm-11:55 am

1 stop21h 21m

Kansas City

Fri 1/23

7:00 am-2:19 pm

1 stop8h 19m

$284

SpokaneSpringfield

GEG - SGF

GEGSGF

Spokane

Mon 5/18

2:03 pm-11:46 pm

1 stop7h 43m

Springfield-Branson

Mon 5/25

6:29 pm-10:22 pm

1 stop5h 53m

$555

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, September 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 $301. If you aren’t able to travel to Missouri during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $310.

What is the cheapest day to depart on your flight to Missouri?

The cheapest day to depart from Idaho to Missouri is on a Tuesday when prices can be found for as low as $391. Flights from Idaho to Missouri on a Monday will generally be more expensive and average around $561. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Missouri?

According to our data, the cheapest time of day to fly to Missouri is in the afternoon. momondo users have found flights departing from Idaho to Missouri in the afternoon for as low as $410. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Missouri are more costly in the morning, with an average ticket price of $496. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Idaho to Missouri flights?

You could potentially save up to 37% 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

Fastest flight time	4h 22m
Direct flights	None

The fastest flight from Idaho to Missouri takes 4h 22m

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

Search flight deals

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 December 2025.
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 $159	Free Cancellation	Rating 7.9 8,010 reviews	Search Delta flights
American Airlines	PriceFrom $226	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
Southwest	PriceFrom $261	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $278	Free Cancellation	Rating 8.0 11,461 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 9,095 reviews	Search United 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.