What airlines fly to Idaho?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Idaho from Missouri according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

How long is the flight from Missouri to Idaho?

Flight times from Missouri to Idaho vary, but if you’re flying out of Kansas City and flying into Boise (one of the most popular routes), then the duration is 5h 10m on average. Another popular route from Missouri to Idaho is flying from St. Louis to Boise, which will take roughly 5h 30m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

Prices for flights from Missouri to Idaho refresh daily.

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

As of September 2026, there are 5 operators available to choose from for flights from Missouri to Idaho.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Idaho.

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

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

$126 Cheap Flights from Missouri to Idaho in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:37 pm - 1:55 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

25h 18m1 stop Las Vegas Harry Reid Intl

2:49 pm - 11:55 amBOI Boise Air Term. Gowen Fld-MCI Kansas City

20h 06m1 stop Las Vegas Harry Reid Intl

$276Frontier

Thu, Oct 22 - Thu, Oct 29

5:40 am - 1:09 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

8h 29m1 stop Dallas/Fort Worth

1:50 pm - 9:13 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

6h 23m1 stop Chicago O'Hare Intl

$349American Airlines

Thu, Oct 29 - Sat, Oct 31

3:45 pm - 9:49 pmSTL Lambert-St Louis-IDA Idaho Falls Fanning Field

7h 04m1 stop Dallas/Fort Worth

6:18 am - 1:38 pmIDA Idaho Falls Fanning Field-STL Lambert-St Louis

6h 20m1 stop Phoenix Sky Harbor Intl

$349American Airlines

Thu, Jan 28 - Sun, Jan 31

1:29 pm - 7:00 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

6h 31m1 stop Las Vegas Harry Reid Intl

7:55 pm - 12:34 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

15h 39m1 stop Las Vegas Harry Reid Intl

$350Frontier

Wed, Nov 25 - Sun, Nov 29

11:30 am - 9:35 pmCOU Columbia Regional-BOI Boise Air Term. Gowen Fld

11h 05m2 stops Chicago O'Hare Intl Denver Intl

2:45 pm - 8:30 pmBOI Boise Air Term. Gowen Fld-COU Columbia Regional

4h 45m1 stop Denver Intl

$354United Airlines

Sat, Jan 23 - Sat, Jan 30

6:50 am - 11:00 amMCI Kansas City-BOI Boise Air Term. Gowen Fld

5h 10m1 stop Denver Intl

3:30 pm - 9:20 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

4h 50m1 stop Denver Intl

$355Southwest

Tue, Dec 15 - Tue, Dec 15

6:14 pm - 11:54 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

6h 40m1 stop Portland

4:18 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

6h 41m1 stop Seattle/Tacoma Intl

$355Alaska Airlines

Wed, Oct 14 - Sat, Oct 24

5:02 pm - 10:59 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

6h 57m1 stop Denver Intl

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

5h 10m1 stop Denver Intl

$359United Airlines

Tue, Nov 10 - Wed, Nov 18

6:50 am - 11:00 amMCI Kansas City-BOI Boise Air Term. Gowen Fld

5h 10m1 stop Denver Intl

1:05 pm - 10:15 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

8h 10m2 stops Denver Intl Chicago Midway

$360Southwest

Tue, Dec 15 - Tue, Dec 15

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

9h 15m1 stop Seattle/Tacoma Intl

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

6h 49m1 stop Seattle/Tacoma Intl

$363Alaska Airlines

Thu, Dec 3 - Thu, Dec 3

Cheap last minute flights

Enter your travel dates to find the best prices.

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

$499United Airlines

Thu, Oct 1 - Thu, Oct 8

4:08 pm - 10:30 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

7h 22m1 stop Dallas/Fort Worth

2:41 pm - 10:25 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

6h 44m1 stop Dallas/Fort Worth

$566American Airlines

Fri, Oct 2 - Fri, Oct 9

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

4h 28m1 stop Denver Intl

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

4h 53m1 stop Denver Intl

$583United Airlines

Fri, Oct 2 - Sun, Oct 4

6:15 am - 11:28 amCOU Columbia Regional-BOI Boise Air Term. Gowen Fld

6h 13m1 stop Chicago O'Hare Intl

2:44 pm - 8:33 pmBOI Boise Air Term. Gowen Fld-COU Columbia Regional

4h 49m1 stop Denver Intl

$598United Airlines

Thu, Oct 1 - Sat, Oct 3

11:59 am - 10:03 pmCOU Columbia Regional-BOI Boise Air Term. Gowen Fld

11h 04m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

7:02 am - 4:19 pmBOI Boise Air Term. Gowen Fld-COU Columbia Regional

8h 17m1 stop Dallas/Fort Worth

$624American Airlines

Tue, Sep 29 - Sat, Oct 3

12:17 pm - 1:55 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

26h 38m1 stop Las Vegas Harry Reid Intl

2:50 pm - 11:17 amBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

19h 27m1 stop Las Vegas Harry Reid Intl

$628Frontier

Thu, Oct 1 - Sun, Oct 4

7:05 am - 2:50 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 45m2 stops Dallas Love Field Denver Intl

4:45 pm - 11:20 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

5h 35m1 stop Phoenix Sky Harbor Intl

$706Southwest

Tue, Sep 29 - Thu, Oct 1

7:05 am - 2:50 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 45m2 stops Dallas Love Field Denver Intl

12:00 pm - 9:45 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

8h 45m2 stops Las Vegas Harry Reid Intl Denver Intl

$715Southwest

Tue, Sep 29 - Thu, Oct 1

6:14 pm - 11:54 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

6h 40m1 stop Portland

9:12 am - 5:18 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

7h 06m1 stop Portland

$802Alaska Airlines

Sun, Oct 4 - Sun, Oct 11

2:25 pm - 1:47 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

24h 22m2 stops Dallas/Fort Worth San Diego

8:22 pm - 9:01 amBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

11h 39m2 stops Seattle/Tacoma Intl Dallas/Fort Worth

$825Alaska Airlines

Fri, Oct 2 - Fri, Oct 9

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Frontier flights from Missouri to Idaho

Our best Frontier deals on Missouri to Idaho flight tickets

Frontier

Oct 22

MCI1:37 pmKansas City

25h 18m

1 stop

BOI1:55 pmBoise Air Term. Gowen Fld

Oct 29

BOI2:49 pmBoise Air Term. Gowen Fld

20h 06m

1 stop

MCI11:55 amKansas City

$276

Frontier

Nov 25

MCI1:29 pmKansas City

6h 31m

1 stop

BOI7:00 pmBoise Air Term. Gowen Fld

Nov 29

BOI7:55 pmBoise Air Term. Gowen Fld

15h 39m

1 stop

MCI12:34 pmKansas City

$350

Frontier

Dec 2

STL7:58 pmLambert-St Louis

25h 56m

2 stops

BOI8:54 pmBoise Air Term. Gowen Fld

Dec 6

BOI9:51 pmBoise Air Term. Gowen Fld

15h 01m

1 stop

STL1:52 pmLambert-St Louis

$351

Delta flights from Missouri to Idaho

Our best Delta deals on Missouri to Idaho flight tickets

Delta

Nov 26

MCI7:00 amKansas City

4h 42m

1 stop

BOI10:42 amBoise Air Term. Gowen Fld

Dec 2

BOI11:34 amBoise Air Term. Gowen Fld

4h 35m

1 stop

MCI5:09 pmKansas City

$355

Delta

Dec 9

SGF6:00 amSpringfield-Branson

8h 44m

1 stop

BOI1:44 pmBoise Air Term. Gowen Fld

Dec 13

BOI1:47 pmBoise Air Term. Gowen Fld

7h 49m

1 stop

SGF10:36 pmSpringfield-Branson

$359

Delta

Nov 10

SGF6:00 amSpringfield-Branson

8h 39m

1 stop

BOI1:39 pmBoise Air Term. Gowen Fld

Nov 17

BOI5:30 amBoise Air Term. Gowen Fld

10h 03m

2 stops

SGF4:33 pmSpringfield-Branson

$364

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Thu 10/22

1:37 pm-1:55 pm

1 stop25h 18m

Boise Air Term. Gowen Fld

Thu 10/29

2:49 pm-11:55 am

1 stop20h 06m

$276

St. LouisIdaho Falls

STL Lambert-St Louis - IDA Idaho Falls Fanning Field

STLIDA

Lambert-St Louis

Thu 10/29

5:40 am-1:09 pm

1 stop8h 29m

Idaho Falls Fanning Field

Sat 10/31

1:50 pm-9:13 pm

1 stop6h 23m

$349

St. LouisIdaho Falls

STL Lambert-St Louis - IDA Idaho Falls Fanning Field

STLIDA

Lambert-St Louis

Thu 1/28

3:45 pm-9:49 pm

1 stop7h 04m

Idaho Falls Fanning Field

Sun 1/31

6:18 am-1:38 pm

1 stop6h 20m

$349

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Wed 11/25

1:29 pm-7:00 pm

1 stop6h 31m

Boise Air Term. Gowen Fld

Sun 11/29

7:55 pm-12:34 pm

1 stop15h 39m

$350

ColumbiaBoise

COU Columbia Regional - BOI Boise Air Term. Gowen Fld

COUBOI

Columbia Regional

Sat 1/23

11:30 am-9:35 pm

2 stops11h 05m

Boise Air Term. Gowen Fld

Sat 1/30

2:45 pm-8:30 pm

1 stop4h 45m

$354

Quickest round-trip

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Tue 12/15

6:50 am-11:00 am

1 stop5h 10m

Boise Air Term. Gowen Fld

Tue 12/15

3:30 pm-9:20 pm

1 stop4h 50m

$355

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Wed 10/14

6:14 pm-11:54 pm

1 stop6h 40m

Boise Air Term. Gowen Fld

Sat 10/24

4:18 pm-11:59 pm

1 stop6h 41m

$355

SpringfieldBoise

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

SGFBOI

Springfield-Branson

Tue 11/10

5:02 pm-10:59 pm

1 stop6h 57m

Boise Air Term. Gowen Fld

Wed 11/18

2:51 pm-9:01 pm

1 stop5h 10m

$359

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Tue 12/15

6:50 am-11:00 am

1 stop5h 10m

Boise Air Term. Gowen Fld

Tue 12/15

1:05 pm-10:15 pm

2 stops8h 10m

$360

St. LouisBoise

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

STLBOI

Lambert-St Louis

Thu 12/3

6:04 am-2:19 pm

1 stop9h 15m

Boise Air Term. Gowen Fld

Thu 12/3

4:10 pm-11:59 pm

1 stop6h 49m

$363

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 Missouri to Idaho

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 Idaho?

In general, January is the cheapest month to fly from Missouri to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $385. If you don’t want to visit Idaho in January, then you should wait until August to fly from Missouri, when ticket prices are also cheap, with an average price of $424.

Can stopping save me money on Missouri to Idaho flights?

You could potentially save up to 69% on your flight if you consider stops on a Missouri to Idaho flight.

Cheap Missouri to Idaho flight deals and tips

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

Best Price Found	$126
Fastest flight time	4h 21m
Direct flights	None

The best one-way flight to Idaho from Missouri in the past 72 hours is $126. The best round-trip flight deal from Missouri to Idaho found on momondo in the last 72 hours is $276.

The fastest flight from Missouri to Idaho takes 4h 21m

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

Search flight deals

Frequently asked questions about flying from Missouri to Idaho

When did momondo last update prices for flights from Missouri to Idaho?
Prices for flights from Missouri to Idaho refresh daily.
How many operators does momondo search for flights from Missouri to Idaho?
As of September 2026, there are 5 operators available to choose from for flights from Missouri to Idaho.
How old do you have to be to fly from Missouri to Idaho?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Idaho.
What documentation or ID do you need to fly to Idaho?
The required travel and health documents for your Idaho 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 Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Missouri to Idaho

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $207	Free Cancellation	Rating 7.0 12,099 reviews	Search American Airlines flights
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,611 reviews	Search Delta flights
United Airlines	PriceFrom $276	Free Cancellation	Rating 7.4 10,251 reviews	Search United Airlines flights
Southwest	PriceFrom $336	Free Cancellation	Rating 8.0 4,201 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $354	Free Cancellation	Rating 7.9 12,986 reviews	Search Alaska Airlines flights

Why use momondo?

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

It is quick and easy to find Missouri to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

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

Yes. momondo allows you to filter the results for Missouri to Idaho flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Idaho from Missouri.

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

If you are simply researching potential flights to Idaho, momondo offers a useful price alert feature which will track prices for flights to Idaho from Missouri and alert you when they change.