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.

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

United Airlines, American Airlines, and Southwest are the most popular carriers operating from Missouri to Idaho

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 4h 35m on average. Another popular route from Missouri to Idaho is flying from Springfield to Boise, which will take roughly 5h 04m. Keep in mind that layovers or delays could extend your travel time.

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 August 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.

$129 Cheap Flights from Missouri to Idaho in 2026

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.

5:19 pm - 2:57 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

22h 38m1 stop Las Vegas Harry Reid Intl

3:52 pm - 1:17 amBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

8h 25m1 stop Las Vegas Harry Reid Intl

$182Frontier

Thu, Oct 8 - Mon, Oct 12

5:32 pm - 2:57 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

22h 25m1 stop Las Vegas Harry Reid Intl

3:52 pm - 10:39 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

29h 47m1 stop Las Vegas Harry Reid Intl

$202Frontier

Thu, Oct 29 - Mon, Nov 2

11:40 am - 3:10 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

4h 30m1 stop Denver Intl

5:45 am - 12:25 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

5h 40m1 stop Phoenix Sky Harbor Intl

$254Southwest

Wed, Nov 11 - Tue, Nov 17

1:43 pm - 5:58 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

5h 15m1 stop Denver Intl

5:40 pm - 11:30 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

4h 50m1 stop Denver Intl

$257United Airlines

Sat, Sep 19 - Wed, Sep 23

6:00 am - 9:35 amMCI Kansas City-BOI Boise Air Term. Gowen Fld

4h 35m1 stop Denver Intl

5:40 pm - 11:30 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

4h 50m1 stop Denver Intl

$257United Airlines

Thu, Sep 10 - Sat, Sep 12

7:00 pm - 11:40 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

5h 40m1 stop Las Vegas Harry Reid Intl

3:40 pm - 10:35 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

5h 55m1 stop Phoenix Sky Harbor Intl

$257Southwest

Thu, Sep 10 - Wed, Sep 16

5:20 am - 11:36 amMCI Kansas City-BOI Boise Air Term. Gowen Fld

7h 16m1 stop Dallas/Fort Worth

2:41 pm - 11:37 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

7h 56m1 stop Dallas/Fort Worth

$257American Airlines

Thu, Nov 26 - Wed, Dec 2

6:53 am - 1:51 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

7h 58m1 stop Dallas/Fort Worth

12:14 pm - 9:57 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

8h 43m1 stop Dallas/Fort Worth

$257American Airlines

Tue, Oct 6 - Sat, Oct 10

2:59 pm - 6:29 pmMCI Kansas City-GEG Spokane

5h 30m1 stop Salt Lake City

5:09 pm - 12:17 amGEG Spokane-MCI Kansas City

5h 08m1 stop Salt Lake City

$262Delta

Mon, Oct 12 - Tue, Oct 13

2:59 pm - 6:29 pmMCI Kansas City-GEG Spokane

5h 30m1 stop Salt Lake City

1:00 pm - 11:31 pmGEG Spokane-MCI Kansas City

8h 31m1 stop Seattle/Tacoma Intl

$262Delta

Mon, Oct 12 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 11:16 amSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

6h 16m1 stop Dallas/Fort Worth

12:12 pm - 9:29 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

8h 17m1 stop Dallas/Fort Worth

$440American Airlines

Sat, Aug 15 - Tue, Sep 1

1:37 pm - 5:58 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

5h 21m1 stop Denver Intl

6:30 am - 6:02 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

10h 32m2 stops Denver Intl Chicago O'Hare Intl

$445United Airlines

Sat, Aug 15 - Tue, Sep 1

8:25 am - 4:49 pmSGF Springfield-Branson-BOI Boise Air Term. Gowen Fld

9h 24m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

8:01 am - 9:29 pmBOI Boise Air Term. Gowen Fld-SGF Springfield-Branson

12h 28m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$450American Airlines

Sat, Aug 15 - Tue, Sep 1

9:00 am - 1:29 pmSGF Springfield-Branson-IDA Idaho Falls Fanning Field

5h 29m1 stop Denver Intl

4:04 pm - 11:42 pmIDA Idaho Falls Fanning Field-SGF Springfield-Branson

6h 38m1 stop Denver Intl

$451United Airlines

Sat, Aug 15 - Sat, Aug 22

7:00 am - 12:15 pmMCI Kansas City-JAC Jackson Hole

6h 15m1 stop Salt Lake City

6:01 pm - 12:13 amJAC Jackson Hole-MCI Kansas City

5h 12m1 stop Salt Lake City

$711Delta

Sun, Aug 16 - Sun, Aug 23

6:02 am - 9:38 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

16h 36m2 stops Seattle/Tacoma Intl Spokane

10:14 am - 11:59 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

12h 45m2 stops San Francisco Seattle/Tacoma Intl

$801Alaska Airlines

Tue, Aug 18 - Wed, Aug 19

10:25 am - 8:10 pmMCI Kansas City-JAC Jackson Hole

10h 45m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

6:01 pm - 12:13 amJAC Jackson Hole-MCI Kansas City

5h 12m1 stop Salt Lake City

$834Delta

Sun, Aug 16 - Sun, Aug 23

5:50 pm - 11:48 pmMCI Kansas City-BOI Boise Air Term. Gowen Fld

6h 58m1 stop Portland

7:00 am - 11:59 pmBOI Boise Air Term. Gowen Fld-MCI Kansas City

15h 59m2 stops Sacramento Intl Seattle/Tacoma Intl

$879Alaska Airlines

Tue, Aug 18 - Wed, Aug 19

2:15 pm - 9:25 pmSTL Lambert-St Louis-GEG Spokane

9h 10m2 stops Denver Intl Las Vegas Harry Reid Intl

10:55 am - 7:45 pmGEG Spokane-STL Lambert-St Louis

6h 50m1 stop Denver Intl

$1,028Southwest

Sat, Aug 15 - Mon, Aug 17

6:50 am - 2:35 pmSTL Lambert-St Louis-GEG Spokane

9h 45m2 stops Dallas Love Field Denver Intl

10:55 am - 10:05 pmGEG Spokane-STL Lambert-St Louis

9h 10m2 stops Denver Intl Nashville Intl

$1,033Southwest

Sat, Aug 15 - Mon, Aug 17

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Alaska Airlines flights from Missouri to Idaho

Our best Alaska Airlines deals on Missouri to Idaho flight tickets

Alaska Airlines

Sep 24

STL6:29 amLambert-St Louis

7h 06m

1 stop

BOI12:35 pmBoise Air Term. Gowen Fld

Sep 29

BOI6:23 amBoise Air Term. Gowen Fld

6h 58m

1 stop

STL2:21 pmLambert-St Louis

$269

Alaska Airlines

Nov 3

MCI2:52 pmKansas City

6h 10m

1 stop

BOI8:02 pmBoise Air Term. Gowen Fld

Nov 4

BOI9:03 amBoise Air Term. Gowen Fld

7h 10m

1 stop

MCI5:13 pmKansas City

$287

Alaska Airlines

Nov 9

MCI7:00 amKansas City

9h 27m

1 stop

BOI3:27 pmBoise Air Term. Gowen Fld

Nov 12

BOI9:03 amBoise Air Term. Gowen Fld

7h 10m

1 stop

MCI5:13 pmKansas City

$293

American Airlines flights from Missouri to Idaho

Our best American Airlines deals on Missouri to Idaho flight tickets

American Airlines

Nov 26

MCI5:20 amKansas City

7h 16m

1 stop

BOI11:36 amBoise Air Term. Gowen Fld

Dec 2

BOI2:41 pmBoise Air Term. Gowen Fld

7h 56m

1 stop

MCI11:37 pmKansas City

$257

American Airlines

Sep 2

MCI5:30 amKansas City

6h 46m

1 stop

BOI11:16 amBoise Air Term. Gowen Fld

Sep 2

BOI3:19 pmBoise Air Term. Gowen Fld

8h 16m

1 stop

MCI12:35 amKansas City

$259

American Airlines

Nov 26

MCI7:58 amKansas City

6h 28m

1 stop

BOI1:26 pmBoise Air Term. Gowen Fld

Dec 2

BOI2:03 pmBoise Air Term. Gowen Fld

9h 21m

2 stops

MCI12:24 amKansas City

$262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBoise

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

STLBOI

Lambert-St Louis

Thu 10/8

5:19 pm-2:57 pm

1 stop22h 38m

Boise Air Term. Gowen Fld

Mon 10/12

3:52 pm-1:17 am

1 stop8h 25m

$182

St. LouisBoise

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

STLBOI

Lambert-St Louis

Thu 10/29

5:32 pm-2:57 pm

1 stop22h 25m

Boise Air Term. Gowen Fld

Mon 11/2

3:52 pm-10:39 pm

1 stop29h 47m

$202

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Wed 11/11

11:40 am-3:10 pm

1 stop4h 30m

Boise Air Term. Gowen Fld

Tue 11/17

5:45 am-12:25 pm

1 stop5h 40m

$254

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Sat 9/19

1:43 pm-5:58 pm

1 stop5h 15m

Boise Air Term. Gowen Fld

Wed 9/23

5:40 pm-11:30 pm

1 stop4h 50m

$257

Quickest round-trip

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Thu 9/10

6:00 am-9:35 am

1 stop4h 35m

Boise Air Term. Gowen Fld

Sat 9/12

5:40 pm-11:30 pm

1 stop4h 50m

$257

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Thu 9/10

7:00 pm-11:40 pm

1 stop5h 40m

Boise Air Term. Gowen Fld

Wed 9/16

3:40 pm-10:35 pm

1 stop5h 55m

$257

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Thu 11/26

5:20 am-11:36 am

1 stop7h 16m

Boise Air Term. Gowen Fld

Wed 12/2

2:41 pm-11:37 pm

1 stop7h 56m

$257

Kansas CityBoise

MCI Kansas City - BOI Boise Air Term. Gowen Fld

MCIBOI

Kansas City

Tue 10/6

6:53 am-1:51 pm

1 stop7h 58m

Boise Air Term. Gowen Fld

Sat 10/10

12:14 pm-9:57 pm

1 stop8h 43m

$257

Kansas CitySpokane

MCI Kansas City - GEG Spokane

MCIGEG

Kansas City

Mon 10/12

2:59 pm-6:29 pm

1 stop5h 30m

Spokane

Tue 10/13

5:09 pm-12:17 am

1 stop5h 08m

$262

Kansas CitySpokane

MCI Kansas City - GEG Spokane

MCIGEG

Kansas City

Mon 10/12

2:59 pm-6:29 pm

1 stop5h 30m

Spokane

Wed 10/14

1:00 pm-11:31 pm

1 stop8h 31m

$262

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 October to fly from Missouri, when ticket prices are also cheap, with an average price of $411.

Can stopping save me money on Missouri to Idaho flights?

You could potentially save up to 84% 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

Fastest flight time	4h 27m
Direct flights	None

The fastest flight from Missouri to Idaho takes 4h 27m

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 August 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
Delta	PriceFrom $186	Free Cancellation	Rating 7.8 8,502 reviews	Search Delta flights
American Airlines	PriceFrom $198	Free Cancellation	Rating 7.1 11,927 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $232	Free Cancellation	Rating 7.9 12,809 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $267	Free Cancellation	Rating 7.4 10,108 reviews	Search United Airlines flights
Southwest	PriceFrom $321	Free Cancellation	Rating 8.0 4,220 reviews	Search Southwest 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.