HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Missouri

$98+ Cheap flights from Idaho to Missouri

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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STL
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
We work with more than 300 partners to bring you better travel deals

...and more

Find cheap flights from Idaho to Missouri with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Idaho to Missouri

Cheapest flights from Idaho to Missouri
Explore the most affordable flight options available from Idaho to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2011:51 amBOI - MCI
1 stop8h 01mSpirit Airlines
Sat 11/2310:14 pmMCI - BOI
1 stop13h 42mSpirit Airlines
Deal found 10/30$148
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/144:25 pmGEG - MCI
1 stop10h 20mMultiple Airlines
Wed 12/411:02 pmMCI - GEG
1 stop11h 54mMultiple Airlines
Deal found 10/30$233
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 12/257:00 amGEG - MCI
1 stop14h 59mAlaska Airlines
Mon 1/132:59 pmMCI - GEG
1 stop8h 10mAlaska Airlines
Deal found 10/31$239
This Delta deal was found by Cheapflights users on 10/31. 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 12/72:00 pmBOI - MCI
1 stop9h 13mDelta
Mon 12/96:10 amMCI - BOI
1 stop8h 10mDelta
Deal found 10/31$267
This Delta deal was found by Cheapflights users on 10/31. 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 12/32:40 pmGEG - MCI
1 stop7h 33mDelta
Tue 12/106:30 amMCI - GEG
1 stop7h 55mDelta
Deal found 10/31$267
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/65:26 pmBOI - MCI
1 stop5h 14mUnited Airlines
Sun 12/86:00 amMCI - BOI
1 stop5h 00mUnited Airlines
Deal found 10/30$276
This American Airlines deal was found by Cheapflights users on 10/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:59 pmGEG - MCI
1 stop7h 47mAmerican Airlines
Fri 1/31:35 pmMCI - GEG
1 stop9h 10mAmerican Airlines
Deal found 10/30$301
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/157:00 amLWS - STL
2 stops13h 26mDelta
Mon 1/67:30 amSTL - LWS
1 stop6h 25mDelta
Deal found 10/30$318
This American Airlines deal was found by Cheapflights users on 10/29. 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 12/171:29 pmBOI - SGF
1 stop5h 49mAmerican Airlines
Tue 1/214:25 pmSGF - BOI
1 stop6h 27mAmerican Airlines
Deal found 10/29$323
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:00 amBOI - MCI
1 stop6h 31mAlaska Airlines
Sat 12/77:00 amMCI - BOI
1 stop7h 53mAlaska Airlines
Deal found 10/30$327
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/42:10 pmGEG - STL
1 stop5h 45mDelta
Sun 12/86:46 pmSTL - GEG
1 stop7h 02mDelta
Deal found 10/30$336
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 12/316:00 amIDA - MCI
1 stop6h 52mAlaska Airlines
Sat 1/42:47 pmMCI - IDA
1 stop10h 12mAlaska Airlines
Deal found 10/31$340

Find flights from Idaho to Missouri within your budget

Customize your flight search to find flights from Idaho to Missouri 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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Fri 1/24

5:27 am-4:28 pm

1 stop9h 01m

$98

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Sun 11/24

11:51 am-4:22 am

1 stop15h 31m

$111

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Sun 11/24

7:00 am-3:04 pm

1 stop7h 04m

$148

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Mon 11/18

9:17 pm-4:45 am

1 stop6h 28m

$156

SpokaneSt. Louis

GEG - STL

GEGSTL

Spokane

Fri 1/24

5:00 am-12:48 pm

1 stop5h 48m

$173

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Fri 1/24

4:04 pm-11:59 pm

1 stop6h 55m

$182

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Thu 11/28

6:30 am-5:00 pm

2 stops9h 30m

$184

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 12/3

1:05 pm-9:24 pm

1 stop7h 19m

$150

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 11/19

6:36 am-1:44 pm

1 stop6h 08m

$160

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 12/3

11:51 am-12:10 pm

3 stops23h 19m

$177

Flights are sorted by cheapest first

Deals found on 10/30

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Idaho to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Idaho 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.

Travel insights for flights from Idaho to Missouri

Get recent, data-driven insights about flights from Idaho to Missouri including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Idaho to Missouri (average of $308). Flying from Idaho to Missouri in March is currently the most expensive (average of $356). 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.

What is the cheapest time of day to fly from ID to MO?

Find hourly flight availability from Idaho to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Missouri as you normally would.

Rainfall in Missouri by month

Plan your trip to Missouri by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Missouri, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated October 31, 2024.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and American Airlines from Idaho to Missouri by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,116 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,420 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,835 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,240 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

  • Can I find flights from Idaho to Missouri for under $200 on Cheapflights?

    Yes, there are multiple flights from Idaho to Missouri for under $200. The cheapest flight booked recently is on Spirit Airlines for just $148, but on average you can expect to pay $299.

  • Are there last-minute flights available from Idaho to Missouri for under $300?

    There are currently 7+ open flights from Idaho to Missouri within the next 7 days for less than $300.

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

    The cheapest airlines for a one-way flight from Idaho to Missouri are American Airlines ($98), Spirit Airlines ($111), and Delta ($148).

  • What does BOI to STL mean?

    BOI and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BOI to STL refers to a flight route from Boise Air Term. Gowen Fld Airport to Lambert-St Louis Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: Kansas City Airport (MCI), Springfield-Branson Airport (SGF), Kansas City Downtown Airport (MKC), Columbia Regional Airport (COU), Branson Airport (BKG).

  • Can I find deals for flights from Idaho to Missouri that include extra baggage allowance?

    The amount of baggage you can bring on your Idaho to Missouri flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Idaho to Missouri with specific airlines?

    Yes, Cheapflights allows you to browse and filter Idaho to Missouri flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Idaho to Missouri that allow pets onboard?

    Many airlines flying from Idaho to Missouri offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Idaho to Missouri?

    Yes, you can often find last-minute deals on Idaho to Missouri flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Idaho to Missouri flight deals updated?

    The Idaho to Missouri flight deals you see on this page were last updated on 10/31.

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

    Currently, September is the cheapest month in which you can book a flight from Idaho to Missouri (average of $308). Flying from Idaho to Missouri in March is currently the most expensive (average of $356). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Fort Lauderdale flights
LaGuardia to Miami flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Newark to Miami flights
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to Orlando flights
Los Angeles to Newark flights
LaGuardia to Dallas/Fort Worth flights
Newark to Los Angeles flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
Dallas/Fort Worth to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Newark to Orlando flights
Dallas/Fort Worth to Newark flights
Newark to Las Vegas flights
Los Angeles to LaGuardia flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to San Francisco flights
Los Angeles to Seattle flights
LaGuardia to Orlando flights
Los Angeles to Honolulu flights
Miami to John F Kennedy Intl flights
Dallas/Fort Worth to Los Angeles flights
Seattle to Los Angeles flights
O'Hare Intl to Orlando flights
Dallas/Fort Worth to Las Vegas flights
LaGuardia to Hobby flights
LaGuardia to Los Angeles flights
Dallas/Fort Worth to Orlando flights
Newark to Hobby flights
Atlanta to John F Kennedy Intl flights
John F Kennedy Intl to West Palm Beach flights
Hobby to LaGuardia flights
Los Angeles to Las Vegas flights
Seattle to Sky Harbor Intl flights
John F Kennedy Intl to O'Hare Intl flights
Boston to Orlando flights
Miami to LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Fort Lauderdale flights
Baltimore to Dallas/Fort Worth flights

Top 6 airlines flying from Idaho to Missouri

Discover the top 6 airlines that operate flights from Idaho to Missouri. 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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$194FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$156Average$416FlexibilityNo cancel feeOn-time75%
DeltaCheapest$276Average$505FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$286Average$497FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$296Average$486FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$297Average$621FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines