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$169+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — STL
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$337
(Delta)

One-way from

$169
(Delta)

Popular in

October

Cheapest in

May

Average price

$346
Provider with most accurate pricing for Idaho Falls Fanning Field-Kansas City flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Kansas City flights.
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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. 23% potential increase in price ($196 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/16:50 pmIDA - STL
1 stop5h 09mDelta
Wed 6/117:15 pmSTL - IDA
1 stop4h 40mDelta
Deal found 4/29$337
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 5/282:25 pmIDA - MCI
1 stop5h 18mUnited Airlines
Wed 6/45:20 pmMCI - IDA
1 stop4h 38mUnited Airlines
Deal found 4/30$347
This Delta deal was found by Cheapflights users on 4/30. 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 5/286:00 amIDA - MCI
2 stops11h 51mDelta
Wed 6/42:30 pmMCI - IDA
1 stop4h 40mDelta
Deal found 4/30$416
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 7/125:00 amIDA - STL
2 stops9h 47mUnited Airlines
Sat 7/191:42 pmSTL - IDA
1 stop4h 40mUnited Airlines
Deal found 4/30$470
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 7/126:51 amIDA - STL
1 stop6h 28mAmerican Airlines
Sat 7/193:08 pmSTL - IDA
1 stop7h 27mAmerican Airlines
Deal found 4/30$484
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/74:22 pmIDA - SGF
1 stop6h 08mUnited Airlines
Sat 5/105:45 amSGF - IDA
1 stop4h 47mUnited Airlines
Deal found 4/28$620

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 May 1, 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 FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Sun 6/1

6:50 pm-12:59 am

1 stop5h 09m

Lambert-St Louis

Wed 6/11

7:15 pm-10:55 pm

1 stop4h 40m

$337

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Wed 5/28

2:25 pm-8:43 pm

1 stop5h 18m

Kansas City

Wed 6/4

5:20 pm-8:58 pm

1 stop4h 38m

$347

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Wed 5/28

6:00 am-6:51 pm

2 stops11h 51m

Kansas City

Wed 6/4

2:30 pm-6:10 pm

1 stop4h 40m

$416

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Sat 7/12

5:00 am-3:47 pm

2 stops9h 47m

Lambert-St Louis

Sat 7/19

1:42 pm-5:22 pm

1 stop4h 40m

$470

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Sat 7/12

6:51 am-2:19 pm

1 stop6h 28m

Lambert-St Louis

Sat 7/19

3:08 pm-9:35 pm

1 stop7h 27m

$484

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Sat 6/7

6:00 am-5:09 pm

2 stops10h 09m

$169

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Wed 5/28

4:20 pm-11:38 pm

1 stop6h 18m

$173

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Tue 6/17

6:52 pm-12:30 am

1 stop4h 38m

$174

Idaho FallsKansas City

IDA - MCI

IDAMCI

Idaho Falls Fanning Field

Tue 6/17

10:55 am-11:15 pm

2 stops11h 20m

$179

Idaho FallsSt. Louis

IDA - STL

IDASTL

Idaho Falls Fanning Field

Thu 5/15

7:00 am-4:22 pm

1 stop8h 22m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 11 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 May 1, 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.

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 May 1, 2025.
Peruse reviews from past customers who have flown with Delta, Hawaiian Airlines and United Airlines from Idaho Falls to Missouri to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Hawaiian Airlines
7.9
Good
2,408 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 Delta ($169), Hawaiian Airlines ($173), and United Airlines ($179).

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

    Most travelers choose Idaho Falls Fanning Field - Lambert-St Louis, Idaho Falls Fanning Field - Kansas City 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 2 airlines flying from Idaho Falls to Missouri

Discover the top 2 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$559FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$396Average$582FlexibilityNo cancel feeOn-time69%

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