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Boise

$126+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — BOI
Aug 9 — Aug 161
Sun 8/9
Sun 8/16
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 July 10, 2026.

This Delta deal was found by Cheapflights users on 7/8. 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 8/256:28 am
MCI
-
BOI
1 stop8h 14m
Delta
Tue 9/12:53 pm
BOI
-
MCI
1 stop7h 34m
Delta
Deal found 7/8$251
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Thu 9/35:30 am
MCI
-
BOI
1 stop6h 46m
American Airlines
Thu 9/103:21 pm
BOI
-
MCI
1 stop8h 02m
American Airlines
Deal found 7/7$253
This American Airlines deal was found by Cheapflights users on 7/10. 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 8/255:30 am
MCI
-
BOI
1 stop6h 46m
American Airlines
Tue 9/11:55 pm
BOI
-
MCI
2 stops9h 40m
American Airlines
Deal found 7/10$256
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 8/175:29 am
MCI
-
BOI
1 stop6h 47m
American Airlines
Sat 8/221:55 pm
BOI
-
MCI
2 stops7h 55m
American Airlines
Deal found 7/7$258
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 9/211:26 am
MCI
-
BOI
2 stops25h 03m
Frontier
Tue 9/81:24 pm
BOI
-
MCI
1 stop22h 58m
Frontier
Deal found 7/9$262
This Delta deal was found by Cheapflights users on 7/9. 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.
Thu 8/207:45 pm
STL
-
BOI
1 stop5h 14m
Delta
Tue 8/256:00 am
BOI
-
STL
1 stop6h 38m
Delta
Deal found 7/9$263
This Delta deal was found by Cheapflights users on 7/9. 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 8/286:01 pm
MCI
-
BOI
1 stop4h 59m
Delta
Mon 8/316:00 am
BOI
-
MCI
1 stop7h 08m
Delta
Deal found 7/9$267
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Thu 8/209:32 am
STL
-
BOI
1 stop5h 57m
American Airlines
Tue 8/251:55 pm
BOI
-
STL
2 stops9h 19m
American Airlines
Deal found 7/9$268
This Southwest deal was found by Cheapflights users on 7/9. 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.
Thu 8/208:25 am
STL
-
BOI
1 stop7h 40m
Southwest
Tue 8/2512:35 pm
BOI
-
STL
2 stops8h 35m
Southwest
Deal found 7/9$269
This CheapOair deal was found by Cheapflights users on 7/8. 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 7/298:08 pm
STL
-
BOI
1 stop17h 21m
Frontier
Tue 8/111:24 pm
BOI
-
STL
1 stop4h 59m
Frontier
Deal found 7/8$270
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/291:43 pm
MCI
-
BOI
2 stops8h 41m
United Airlines
Fri 9/45:44 pm
BOI
-
MCI
1 stop4h 46m
United Airlines
Deal found 7/8$272
This American Airlines deal was found by Cheapflights users on 7/8. 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 9/16:36 am
STL
-
BOI
2 stops11h 13m
American Airlines
Tue 9/291:52 pm
BOI
-
STL
2 stops9h 35m
American Airlines
Deal found 7/8$273

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 July 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(Delta)

One-way from

$126
(United Airlines)

Popular in

February

Cheapest in

January

Average price

$506
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. 7% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 10, 2026.
Use the filters below to find and compare flights from Missouri to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Thu 9/24

5:47 pm-11:59 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Tue 9/29

2:50 pm-11:16 pm

1 stop7h 26m

$263

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Sat 9/5

8:30 am-2:30 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Sat 9/12

3:25 pm-10:20 pm

1 stop5h 55m

$263

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Thu 8/20

7:45 pm-11:59 pm

1 stop5h 14m

Boise Air Term. Gowen Fld

Tue 8/25

6:00 am-1:38 pm

1 stop6h 38m

$263

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Thu 8/13

7:45 pm-11:59 pm

1 stop5h 14m

Boise Air Term. Gowen Fld

Mon 8/17

6:45 pm-12:41 am

1 stop4h 56m

$263

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Sat 8/29

1:43 pm-9:24 pm

2 stops8h 41m

Boise Air Term. Gowen Fld

Fri 9/4

5:44 pm-11:30 pm

1 stop4h 46m

$272

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Thu 8/20

2:20 pm-11:55 pm

2 stops10h 35m

Boise Air Term. Gowen Fld

Tue 8/25

12:35 pm-10:10 pm

2 stops8h 35m

$280

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Thu 8/13

6:00 am-2:15 pm

2 stops9h 15m

Boise Air Term. Gowen Fld

Mon 8/17

3:50 pm-12:35 am

1 stop7h 45m

$287

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Tue 9/29

6:29 am-12:35 pm

1 stop7h 06m

Boise Air Term. Gowen Fld

Wed 9/30

6:23 am-2:21 pm

1 stop6h 58m

$293

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Tue 11/10

7:01 am-3:27 pm

1 stop9h 26m

Boise Air Term. Gowen Fld

Wed 11/11

4:21 pm-11:59 pm

1 stop6h 38m

$319

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Fri 8/14

8:30 am-4:15 pm

2 stops8h 45m

Boise Air Term. Gowen Fld

Thu 8/20

2:55 pm-9:55 pm

1 stop6h 00m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 48 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Missouri to Boise (average of $154). Flying from Missouri to Boise in July is currently the most expensive (average of $326). 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.

How much does it cost to fly round-trip from Missouri to Boise?

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. Missouri and Boise are separated by a distance of 1378 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 United Airlines and Delta, 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, Springfield-Branson - Boise Air Term. Gowen Fld or Kansas City - 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, August is the cheapest month in which you can book a flight from Missouri to Boise (average of $154). Flying from Missouri to Boise in July is currently the most expensive (average of $326). 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
Meridian
Nampa
Caldwell
Ontario

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Alternative routes for Missouri to Boise

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$186Average$394FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$473FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$232Average$422FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$256Average$454FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$296Average$480FlexibilityNo cancel feeOn-time63%

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