Missouri

$105+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STL
Jan 26 — Feb 21
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Cheap flight deals from Idaho to Missouri

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Missouri (USMO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$209
(United Airlines)

One-way from

$105
(Delta)
From Idaho to Missouri
One-way flight from Idaho to Missouri

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 January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/19. 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 2/42:32 pmBOI - SGF
1 stop5h 09mUnited Airlines
Sat 2/81:38 pmSGF - BOI
1 stop5h 24mUnited Airlines
Deal found 1/19$209
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/225:00 amGEG - SGF
1 stop5h 39mUnited Airlines
Wed 2/265:30 amSGF - GEG
2 stops11h 25mUnited Airlines
Deal found 1/21$254
This Delta deal was found by Cheapflights users on 1/21. 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 2/221:10 pmGEG - SGF
1 stop7h 12mDelta
Wed 2/266:05 amSGF - GEG
1 stop7h 55mDelta
Deal found 1/21$284
This CheapOair deal was found by Cheapflights users on 1/21. 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.
Thu 2/207:41 pmBOI - MCI
1 stop21h 46mSpirit Airlines
Mon 2/247:24 pmMCI - BOI
1 stop24h 22mSpirit Airlines
Deal found 1/21$296
This Delta deal was found by Cheapflights users on 1/20. 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 2/195:45 amBOI - STL
2 stops10h 08mDelta
Wed 2/2610:22 amSTL - BOI
2 stops10h 53mDelta
Deal found 1/20$314
This Delta deal was found by Cheapflights users on 1/21. 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 4/16:00 amGEG - MCI
1 stop7h 09mDelta
Thu 4/32:30 pmMCI - GEG
1 stop5h 29mDelta
Deal found 1/21$317
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/191:56 pmBOI - STL
1 stop8h 43mAmerican Airlines
Wed 2/267:15 amSTL - BOI
1 stop7h 01mAmerican Airlines
Deal found 1/20$319
This Delta deal was found by Cheapflights users on 1/20. 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 2/182:55 pmBOI - MCI
1 stop8h 14mDelta
Tue 2/255:45 pmMCI - BOI
1 stop7h 13mDelta
Deal found 1/20$319
This Delta deal was found by Cheapflights users on 1/21. 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 2/287:00 amLWS - STL
2 stops13h 17mDelta
Mon 3/32:13 pmSTL - LWS
2 stops10h 46mDelta
Deal found 1/21$324
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/185:30 pmBOI - MCI
1 stop5h 14mUnited Airlines
Tue 2/259:00 amMCI - BOI
2 stops11h 10mUnited Airlines
Deal found 1/20$324
This Southwest deal was found by Cheapflights users on 1/20. 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 3/55:30 amGEG - STL
1 stop7h 15mSouthwest
Wed 4/97:00 amSTL - GEG
1 stop7h 50mSouthwest
Deal found 1/20$327
This Delta deal was found by Cheapflights users on 1/21. 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 2/272:10 pmGEG - STL
1 stop6h 07mDelta
Mon 3/175:35 pmSTL - GEG
1 stop7h 05mDelta
Deal found 1/21$328

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 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseSpringfield

BOI - SGF

BOISGF

Boise Air Term. Gowen Fld

Tue 2/4

2:32 pm-8:41 pm

1 stop5h 09m

Springfield-Branson

Sat 2/8

1:38 pm-6:02 pm

1 stop5h 24m

$209

BoiseSpringfield

BOI - SGF

BOISGF

Boise Air Term. Gowen Fld

Wed 2/5

7:00 am-1:44 pm

1 stop5h 44m

Springfield-Branson

Sun 2/9

4:25 pm-9:52 pm

1 stop6h 27m

$264

SpokaneSpringfield

GEG - SGF

GEGSGF

Spokane

Wed 2/5

1:10 pm-10:31 pm

1 stop7h 21m

Springfield-Branson

Sun 2/9

6:10 am-12:00 pm

1 stop7h 50m

$294

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Thu 2/20

7:41 pm-6:27 pm

1 stop21h 46m

Kansas City

Mon 2/24

7:24 pm-6:46 pm

1 stop24h 22m

$296

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 2/19

5:45 am-4:53 pm

2 stops10h 08m

Lambert-St Louis

Wed 2/26

10:22 am-8:15 pm

2 stops10h 53m

$314

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Tue 4/1

6:00 am-3:09 pm

1 stop7h 09m

Kansas City

Thu 4/3

2:30 pm-5:59 pm

1 stop5h 29m

$317

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 2/19

1:56 pm-11:39 pm

1 stop8h 43m

Lambert-St Louis

Wed 2/26

7:15 am-1:16 pm

1 stop7h 01m

$319

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Tue 2/18

2:55 pm-12:09 am

1 stop8h 14m

Kansas City

Tue 2/25

5:45 pm-11:58 pm

1 stop7h 13m

$319

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Tue 2/18

5:30 pm-11:44 pm

1 stop5h 14m

Kansas City

Tue 2/25

9:00 am-7:10 pm

2 stops11h 10m

$324

LewistonSt. Louis

LWS - STL

LWSSTL

Lewiston Nez Perce Rgnl

Fri 2/28

7:00 am-10:17 pm

2 stops13h 17m

Lambert-St Louis

Mon 3/3

2:13 pm-10:59 pm

2 stops10h 46m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 59 results
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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, August is the cheapest month in which you can book a flight from Idaho to Missouri (average of $311). 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 January 21, 2025.

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 January 21, 2025.
Get a feel of what it's like to fly with Delta, American Airlines and Southwest 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.
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,662 reviews
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,706 reviews
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,521 reviews
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
8,984 reviews
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.2
Good
10,000 reviews
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.
  • 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 Delta ($105), Spirit Airlines ($132), and American Airlines ($160).

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Idaho to Missouri (average of $311). 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

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Alternative routes for Idaho to Missouri

See prices for flight routes from nearby airports that may be better suited for you.

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 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$130Average$187FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$156Average$482FlexibilityNo cancel feeOn-time75%
DeltaCheapest$284Average$503FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$293Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$297Average$595FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$341Average$482FlexibilityNo cancel feeOn-time63%
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