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Boise

$93+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOI
Mar 17 — Mar 241
Tue 3/17
Tue 3/24
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 February 15, 2026.

This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:55 am
MCI
-
BOI
1 stop6h 10m
Delta
Wed 4/153:44 pm
BOI
-
MCI
1 stop6h 59m
Delta
Deal found 2/12$263
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:40 pm
MCI
-
BOI
2 stops10h 05m
Delta
Mon 4/131:52 pm
BOI
-
MCI
1 stop8h 51m
Delta
Deal found 2/12$268
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Thu 2/2610:11 pm
STL
-
BOI
2 stops14h 00m
Frontier
Thu 3/512:38 pm
BOI
-
STL
1 stop20h 11m
Frontier
Deal found 2/12$276
This CheapOair deal was found by Cheapflights users on 2/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/317:00 am
STL
-
BOI
1 stop9h 29m
Alaska Airlines
Tue 4/74:15 pm
BOI
-
STL
1 stop6h 44m
Alaska Airlines
Deal found 2/11$277
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Sat 4/111:54 pm
MCI
-
BOI
1 stop5h 11m
United Airlines
Sat 4/186:15 am
BOI
-
MCI
1 stop5h 33m
United Airlines
Deal found 2/11$277
This CheapOair deal was found by Cheapflights users on 2/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:16 pm
STL
-
BOI
1 stop15h 52m
Frontier
Sun 4/512:03 pm
BOI
-
STL
1 stop20h 45m
Frontier
Deal found 2/11$281
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/52:12 pm
STL
-
BOI
2 stops10h 33m
Delta
Sat 4/1110:35 am
BOI
-
STL
2 stops9h 56m
Delta
Deal found 2/12$286
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/254:51 pm
STL
-
BOI
1 stop20h 00m
Frontier
Sun 3/111:56 am
BOI
-
STL
2 stops35h 03m
Frontier
Deal found 2/11$288
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:12 pm
MCI
-
BOI
1 stop5h 43m
Delta
Sun 3/151:45 pm
BOI
-
MCI
1 stop8h 31m
Delta
Deal found 2/11$290
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 4/297:00 am
MCI
-
BOI
1 stop9h 33m
Alaska Airlines
Sun 5/35:50 am
BOI
-
MCI
1 stop9h 27m
Alaska Airlines
Deal found 2/11$306
This CheapOair deal was found by Cheapflights users on 2/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:51 pm
STL
-
BOI
1 stop21h 20m
Frontier
Fri 2/2011:56 am
BOI
-
STL
1 stop25h 00m
Frontier
Deal found 2/12$308
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/172:20 pm
STL
-
BOI
2 stops9h 04m
Delta
Mon 4/277:24 am
BOI
-
STL
2 stops9h 02m
Delta
Deal found 2/13$310

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 February 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$263
(Delta)

One-way from

$93
(Trip.com)

Popular in

February

Cheapest in

January

Average price

$566
Provider with most accurate pricing for Lambert-St Louis-Boise Air Term. Gowen Fld flight deals.
Search Deals
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 ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 15, 2026.
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

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 4/29

7:42 am-1:12 pm

1 stop6h 30m

Boise Air Term. Gowen Fld

Sun 5/3

1:52 pm-12:11 am

1 stop9h 19m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 4/8

7:55 am-4:00 pm

1 stop9h 05m

Boise Air Term. Gowen Fld

Tue 4/14

1:52 pm-11:43 pm

1 stop8h 51m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Tue 4/7

7:55 am-9:01 pm

1 stop14h 06m

Boise Air Term. Gowen Fld

Tue 4/14

10:41 am-11:43 pm

1 stop12h 02m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Mon 4/6

7:55 am-1:05 pm

1 stop6h 10m

Boise Air Term. Gowen Fld

Mon 4/13

1:52 pm-11:43 pm

1 stop8h 51m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Mon 4/6

7:55 am-1:05 pm

1 stop6h 10m

Boise Air Term. Gowen Fld

Tue 4/14

3:44 pm-11:43 pm

1 stop6h 59m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 4/8

7:55 am-1:05 pm

1 stop6h 10m

Boise Air Term. Gowen Fld

Wed 4/15

1:52 pm-11:43 pm

1 stop8h 51m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Thu 4/2

7:55 am-1:05 pm

1 stop6h 10m

Boise Air Term. Gowen Fld

Thu 4/9

1:45 pm-11:16 pm

1 stop8h 31m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Sat 4/11

7:55 am-1:05 pm

1 stop6h 10m

Boise Air Term. Gowen Fld

Sat 4/18

3:44 pm-11:43 pm

1 stop6h 59m

$263

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Thu 2/26

10:11 pm-11:11 am

2 stops14h 00m

Boise Air Term. Gowen Fld

Thu 3/5

12:38 pm-9:49 am

1 stop20h 11m

$276

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Tue 3/31

7:00 am-3:29 pm

1 stop9h 29m

Boise Air Term. Gowen Fld

Tue 4/7

4:15 pm-11:59 pm

1 stop6h 44m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

Showing 1-10 of 42 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 February is currently the most expensive (average of $317). 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 6h 30m. 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 Kansas City - Boise Air Term. Gowen Fld, Lambert-St Louis - 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 February is currently the most expensive (average of $317). 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 February 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$133Average$342FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$171Average$435FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$193Average$442FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$266Average$434FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$288Average$398FlexibilityNo cancel feeOn-time75%

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