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$98+ Cheap flights from Missouri to Boise (BOI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOI
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from Missouri to Boise

Cheapest flights from Missouri to Boise
Explore the most affordable flight options available from Missouri to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 31, 2025.

This American Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:00 amSTL - BOI
1 stop16h 40mAmerican Airlines
Tue 2/37:20 amBOI - STL
1 stop7h 54mAmerican Airlines
Deal found 12/29$698
This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:45 pmSTL - BOI
1 stop7h 46mUnited Airlines
Tue 2/310:15 amBOI - STL
2 stops9h 43mUnited Airlines
Deal found 12/29$710
This Kiwi.com deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:43 pmSTL - BOI
1 stop17h 00mMultiple Airlines
Fri 1/29:46 pmBOI - STL
1 stop22h 39mMultiple Airlines
Deal found 12/30$808
This American Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:00 amSTL - BOI
1 stop16h 40mAmerican Airlines
Sat 1/32:18 pmBOI - STL
1 stop8h 33mAmerican Airlines
Deal found 12/29$1,023
This Southwest deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:45 pmSTL - BOI
1 stop13h 25mSouthwest
Sun 1/46:15 amBOI - STL
1 stop7h 05mSouthwest
Deal found 12/30$1,038
This Southwest deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:50 pmSTL - BOI
2 stops9h 35mSouthwest
Fri 1/25:35 amBOI - STL
2 stops8h 40mSouthwest
Deal found 12/30$1,043
This Alaska Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:00 amSTL - BOI
2 stops14h 10mAlaska Airlines
Tue 2/39:02 amBOI - STL
2 stops13h 57mAlaska Airlines
Deal found 12/29$1,251
This Alaska Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:00 amSTL - BOI
2 stops14h 10mAlaska Airlines
Sat 1/35:43 amBOI - STL
2 stops16h 13mAlaska Airlines
Deal found 12/29$1,628

Find flight deals from Missouri to Boise

Keep the following information in mind while searching for Missouri to Boise flight deals. Data was last updated December 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$191
(Frontier)

One-way from

$98
(Alaska Airlines)

Popular in

February

Cheapest in

November

Average price

$507
Provider with most accurate pricing for Lambert-St Louis-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Boise Air Term. Gowen Fld flights.
Search Deals
From Missouri to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Missouri to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2025.
Use the filters below to find and compare flights from Missouri to Boise that are best for you.

Fly from

Missouri

Fly to

Boise

Route

Depart

Return

Price

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Sat 2/21

2:51 pm-11:11 am

1 stop21h 20m

Boise Air Term. Gowen Fld

Fri 2/27

11:56 am-1:56 pm

1 stop25h 00m

$191

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Tue 1/20

2:45 pm-9:05 pm

1 stop7h 20m

Boise Air Term. Gowen Fld

Sun 1/25

6:23 am-1:43 pm

1 stop6h 20m

$196

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Tue 1/20

11:34 am-7:25 pm

1 stop8h 51m

Boise Air Term. Gowen Fld

Sun 1/25

3:18 pm-10:39 pm

1 stop6h 21m

$197

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Thu 1/29

7:00 am-11:12 am

2 stops29h 12m

Boise Air Term. Gowen Fld

Mon 2/2

12:07 pm-7:51 pm

1 stop6h 44m

$209

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 2/18

2:49 pm-10:40 pm

1 stop8h 51m

Boise Air Term. Gowen Fld

Wed 2/25

6:00 pm-1:55 pm

1 stop18h 55m

$264

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Tue 1/20

11:29 am-9:52 pm

2 stops11h 23m

Boise Air Term. Gowen Fld

Sun 1/25

6:10 am-12:37 pm

1 stop5h 27m

$265

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Fri 2/6

3:31 pm-11:59 pm

2 stops9h 28m

Boise Air Term. Gowen Fld

Sun 2/8

10:39 am-11:25 pm

2 stops11h 46m

$272

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 2/18

6:23 am-1:59 pm

1 stop8h 36m

Boise Air Term. Gowen Fld

Wed 2/25

5:35 am-1:27 pm

1 stop6h 52m

$283

SpringfieldBoise

SGF - BOI

SGFBOI

Springfield-Branson

Fri 1/30

7:00 am-1:08 pm

1 stop7h 08m

Boise Air Term. Gowen Fld

Sun 2/1

1:58 pm-9:19 pm

1 stop6h 21m

$289

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Mon 1/26

3:31 pm-11:59 pm

2 stops9h 28m

Boise Air Term. Gowen Fld

Mon 2/2

1:40 pm-11:25 pm

2 stops8h 45m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 27 results
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Best time to book a flight from Missouri to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Boise

What is the cheapest month to book a flight from Missouri to Boise?

Currently, June is the cheapest month in which you can book a flight from Missouri to Boise (average of $133). Flying from Missouri to Boise in July is currently the most expensive (average of $286). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boise from Missouri?

    Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Missouri. Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Missouri to Boise?

    Departing from Missouri to Boise will take you 7h 20m. Missouri and Boise are separated by a distance of 1148 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Missouri to Boise one-way?

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $82. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Missouri to Boise for a low price.

  • What are the most popular routes from Missouri to Boise?

    When deciding which route to take from Missouri to Boise consider Lambert-St Louis - Boise Air Term. Gowen Fld, Kansas City - Boise Air Term. Gowen Fld or Springfield-Branson - Boise Air Term. Gowen Fld as they are the most popular.

  • Can I find deals for flights from Missouri to Boise that include hotel bookings?

    Yes. In addition to deals on Missouri to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Boise.

  • Can I find deals for business class flights from Missouri to Boise?

    Yes. Cheapflights offers flight deals from Missouri to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Boise?

    Currently, June is the cheapest month in which you can book a flight from Missouri to Boise (average of $133). Flying from Missouri to Boise in July is currently the most expensive (average of $286). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell
McCall

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Top 5 airlines flying from Missouri to Boise

Discover the top 5 airlines that operate flights from Missouri to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$166Average$367FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$440FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$232Average$389FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$266Average$440FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$445FlexibilityNo cancel feeOn-time69%

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