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$272+ Cheap flights from Idaho Falls (IDA) to Missouri

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — MCI
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Idaho Falls to Missouri

Cheapest flights from Idaho Falls to Missouri
Explore the most affordable flight options available from Idaho Falls to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 12/3010:45 amIDA - MCI
1 stop4h 22mUnited Airlines
Sat 1/35:45 amMCI - IDA
1 stop5h 13mUnited Airlines
Deal found 12/15$501
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/225:55 amIDA - MCI
1 stop6h 29mDelta
Sun 1/45:59 pmMCI - IDA
1 stop5h 53mDelta
Deal found 12/15$519
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/164:19 pmIDA - MCI
1 stop5h 48mUnited Airlines
Tue 12/235:45 amMCI - IDA
1 stop5h 13mUnited Airlines
Deal found 12/15$591
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/312:30 pmIDA - SGF
1 stop4h 52mUnited Airlines
Sat 1/35:03 pmSGF - IDA
1 stop6h 56mUnited Airlines
Deal found 12/15$613
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Tue 12/307:11 pmIDA - SGF
1 stop15h 20mAllegiant Air
Sat 1/37:23 pmSGF - IDA
1 stop23h 08mAllegiant Air
Deal found 12/15$680
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Fri 12/199:20 pmIDA - MCI
1 stop16h 32mMultiple Airlines
Sun 12/214:32 pmMCI - IDA
2 stops22h 48mMultiple Airlines
Deal found 12/15$694
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/312:30 pmIDA - STL
1 stop6h 52mUnited Airlines
Sun 1/42:45 pmSTL - IDA
1 stop9h 14mUnited Airlines
Deal found 12/16$753
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/311:16 pmIDA - STL
2 stops18h 19mAmerican Airlines
Sun 1/42:43 pmSTL - IDA
1 stop8h 38mAmerican Airlines
Deal found 12/16$788
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/306:40 amIDA - SGF
1 stop8h 42mUnited Airlines
Sat 1/36:20 pmSGF - IDA
2 stops27h 54mUnited Airlines
Deal found 12/15$806
This Delta deal was found by Cheapflights users on 12/15. 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 12/191:17 pmIDA - MCI
2 stops8h 53mDelta
Sun 12/212:35 pmMCI - IDA
1 stop4h 42mDelta
Deal found 12/15$850
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/191:16 pmIDA - MCI
1 stop6h 02mAmerican Airlines
Sun 12/212:16 pmMCI - IDA
1 stop9h 05mAmerican Airlines
Deal found 12/15$1,035

Find flight deals from Idaho Falls to Missouri

Keep the following information in mind while searching for Idaho Falls to Missouri flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$362
(Alaska Airlines)

Popular in

January

Cheapest in

February

Average price

$645
Provider with most accurate pricing for Idaho Falls Fanning Field-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Lambert-St Louis flights.
Search Deals
From Idaho Falls Fanning Field to Missouri
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 December 18, 2025.
Use the filters below to find and compare flights from Idaho Falls to Missouri that are best for you.

Fly from

Idaho Falls

Fly to

Missouri

Route

Depart

Return

Price

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Thu 1/15

5:25 am-1:58 pm

1 stop7h 33m

Kansas City

Tue 1/20

4:04 pm-10:57 pm

2 stops7h 53m

$272

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Thu 1/15

5:25 am-1:58 pm

1 stop7h 33m

Kansas City

Thu 1/22

6:30 am-12:34 pm

1 stop7h 04m

$294

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Tue 1/13

5:25 am-1:58 pm

1 stop7h 33m

Kansas City

Tue 1/20

4:04 pm-10:57 pm

2 stops7h 53m

$299

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Fri 1/9

1:15 pm-8:39 pm

1 stop6h 24m

Kansas City

Tue 1/20

6:30 am-12:34 pm

1 stop7h 04m

$320

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Wed 1/14

5:25 am-1:58 pm

1 stop7h 33m

Kansas City

Wed 1/21

6:30 am-12:34 pm

1 stop7h 04m

$321

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Thu 1/15

5:25 am-1:58 pm

1 stop7h 33m

Kansas City

Sun 1/25

6:30 am-12:34 pm

1 stop7h 04m

$323

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-10:16 am

2 stops14h 41m

Kansas City

Tue 1/20

6:30 am-12:34 pm

1 stop7h 04m

$325

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-10:16 am

2 stops14h 41m

Kansas City

Thu 1/22

6:30 am-12:34 pm

1 stop7h 04m

$326

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Sat 1/31

6:58 pm-1:43 pm

1 stop17h 45m

Kansas City

Tue 2/3

2:45 pm-10:59 pm

1 stop9h 14m

$362

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-3:05 pm

2 stops19h 07m

Kansas City

Sat 1/24

3:32 pm-10:59 pm

1 stop8h 27m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Idaho Falls to Missouri

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

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

Currently, March is the cheapest month in which you can book a flight from Idaho Falls to Missouri (average of $199). Flying from Idaho Falls to Missouri in September is currently the most expensive (average of $334). 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 IDA to MO?

Find hourly flight availability from Idaho Falls 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 December 18, 2025.

It’s optimal to fly from Idaho Falls to Missouri in the afternoon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.

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

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 December 18, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Idaho Falls to Missouri have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,005 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,005 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Missouri. 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 from for flights from Idaho Falls to Missouri?

    Most people fly from Idaho Falls Fanning Field (IDA) if they book a flight from Idaho Falls to Missouri. Idaho Falls Fanning Field is conveniently located just 3.8 mi from Idaho Falls’s city center.

  • How long is the flight from Idaho Falls to Missouri?

    There are many flights that can get you from Idaho Falls to Missouri in 4h 56m. Fly via Delta, United Airlines, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 1071 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Idaho Falls to Missouri?

    Most travelers choose Idaho Falls Fanning Field - Kansas City, Idaho Falls Fanning Field - Springfield-Branson or Idaho Falls Fanning Field - Lambert-St Louis when deciding on the best route from Idaho Falls to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls 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 Falls to Missouri?

    Currently, March is the cheapest month in which you can book a flight from Idaho Falls to Missouri (average of $199). Flying from Idaho Falls to Missouri in September is currently the most expensive (average of $334). 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

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Alternative routes for Idaho Falls to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Idaho Falls to Missouri

Discover the top 3 airlines that operate flights from Idaho Falls 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$410FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$324Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$380Average$578FlexibilityNo cancel feeOn-time69%

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