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Missouri

$161+ Cheap flights from Idaho Falls (IDA) 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — STL
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap 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 September 14, 2025.

Round-trip from

$305
(Kiwi.com)

One-way from

$161
(Delta)

Popular in

January

Cheapest in

May

Average price

$414
From Idaho Falls Fanning Field to Missouri
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One-way flight from Idaho Falls Fanning Field to Missouri
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Highest demand for flights based on searches. 8% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:40 pmIDA - MCI
1 stop17h 20mMultiple Airlines
Thu 10/164:00 pmMCI - IDA
2 stops25h 14mMultiple Airlines
Deal found 9/13$305
This Delta deal was found by Cheapflights users on 9/14. 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 10/66:53 pmIDA - MCI
1 stop4h 25mDelta
Tue 10/146:15 pmMCI - IDA
1 stop5h 00mDelta
Deal found 9/14$321
This Delta deal was found by Cheapflights users on 9/14. 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 10/66:53 pmIDA - MCI
1 stop4h 25mDelta
Sun 10/124:12 pmMCI - IDA
2 stops7h 03mDelta
Deal found 9/14$326
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:40 pmIDA - MCI
1 stop17h 20mMultiple Airlines
Sun 10/1210:53 amMCI - IDA
1 stop26h 56mMultiple Airlines
Deal found 9/13$346
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/204:15 pmIDA - MCI
1 stop6h 44mAlaska Airlines
Mon 10/277:00 amMCI - IDA
1 stop9h 13mAlaska Airlines
Deal found 9/11$349
This Delta deal was found by Cheapflights users on 9/14. 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 10/76:53 pmIDA - MCI
1 stop4h 25mDelta
Wed 10/156:15 pmMCI - IDA
1 stop5h 00mDelta
Deal found 9/14$350
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:56 pmIDA - MCI
1 stop4h 34mUnited Airlines
Tue 10/216:00 amMCI - IDA
1 stop4h 48mUnited Airlines
Deal found 9/13$368
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:15 pmIDA - MCI
1 stop6h 44mAlaska Airlines
Tue 10/217:00 amMCI - IDA
1 stop9h 38mAlaska Airlines
Deal found 9/12$370
This Delta deal was found by Cheapflights users on 9/12. 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.
Fri 10/176:53 pmIDA - MCI
1 stop4h 25mDelta
Tue 10/216:40 amMCI - IDA
1 stop6h 53mDelta
Deal found 9/12$371
This Delta deal was found by Cheapflights users on 9/14. 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 10/66:53 pmIDA - MCI
1 stop4h 25mDelta
Sat 10/112:38 pmMCI - IDA
2 stops8h 52mDelta
Deal found 9/14$376
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:05 amIDA - STL
1 stop8h 13mHawaiian Airlines
Thu 11/137:00 amSTL - IDA
1 stop9h 13mHawaiian Airlines
Deal found 9/14$379
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/310:57 pmIDA - MCI
2 stops37h 51mMultiple Airlines
Sun 10/126:36 pmMCI - IDA
1 stop19h 13mMultiple Airlines
Deal found 9/14$379

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 September 14, 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

Mon 10/20

4:15 pm-11:59 pm

1 stop6h 44m

Kansas City

Mon 10/27

7:00 am-3:13 pm

1 stop9h 13m

$349

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Fri 10/10

6:53 pm-12:18 am

1 stop4h 25m

Kansas City

Wed 10/15

6:15 pm-10:15 pm

1 stop5h 00m

$350

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Fri 10/17

5:56 pm-11:30 pm

1 stop4h 34m

Kansas City

Tue 10/21

6:00 am-9:48 am

1 stop4h 48m

$368

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Fri 10/17

4:15 pm-11:59 pm

1 stop6h 44m

Kansas City

Tue 10/21

7:00 am-3:38 pm

1 stop9h 38m

$370

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Mon 10/6

6:53 pm-12:18 am

1 stop4h 25m

Kansas City

Fri 10/10

6:15 pm-10:15 pm

1 stop5h 00m

$371

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Fri 10/17

6:53 pm-12:18 am

1 stop4h 25m

Kansas City

Tue 10/21

6:40 am-12:33 pm

1 stop6h 53m

$371

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Wed 10/15

4:15 pm-12:03 am

1 stop6h 48m

Lambert-St Louis

Sat 10/18

6:33 am-3:38 pm

1 stop10h 05m

$379

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Sat 11/8

6:05 am-3:18 pm

1 stop8h 13m

Lambert-St Louis

Thu 11/13

4:14 pm-11:59 pm

1 stop8h 45m

$379

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Sat 11/8

10:50 am-4:28 pm

1 stop4h 38m

Lambert-St Louis

Thu 11/13

9:00 am-3:16 pm

1 stop7h 16m

$380

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Thu 10/2

6:51 pm-12:04 am

1 stop4h 13m

Kansas City

Tue 10/14

6:15 pm-10:15 pm

1 stop5h 00m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 39 results
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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, August is the cheapest month in which you can book a flight from Idaho Falls to Missouri (average of $311). Flying from Idaho Falls 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 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 September 14, 2025.

When flying from Idaho Falls to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 14, 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
8.0
Very good
7,956 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 25m. Fly via Alaska Airlines, Delta, or United Airlines to get the fastest option. Airlines will cover a distance of 942 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Idaho Falls to Missouri are American Airlines ($161), United Airlines ($161), and Delta ($161).

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

    Most travelers choose Idaho Falls Fanning Field - Kansas City, Idaho Falls Fanning Field - Lambert-St Louis or Idaho Falls Fanning Field - Springfield-Branson 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, August is the cheapest month in which you can book a flight from Idaho Falls to Missouri (average of $311). Flying from Idaho Falls 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

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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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$490FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$324Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$350Average$583FlexibilityNo cancel feeOn-time69%

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