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Idaho Falls

$206+ Cheap flights from Missouri to Idaho Falls (IDA)

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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IDA
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Missouri to Idaho Falls

Keep the following information in mind while searching for Missouri to Idaho Falls flight deals. Data was last updated March 28, 2025.

Round-trip from

$351
(United Airlines)

One-way from

$206
(Delta)
From Missouri to Idaho Falls Fanning Field
Search Deals
One-way flight from Missouri to Idaho Falls Fanning Field
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Find flight deals from Missouri to Idaho Falls

Cheapest flights from Missouri to Idaho Falls
Explore the most affordable flight options available from Missouri to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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 7/16:00 amMCI - IDA
1 stop4h 44mUnited Airlines
Tue 7/86:03 pmIDA - MCI
1 stop4h 28mUnited Airlines
Deal found 3/27$351
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 4/177:00 amMCI - IDA
1 stop16h 35mAlaska Airlines
Sat 4/198:00 amIDA - MCI
1 stop29h 01mAlaska Airlines
Deal found 3/27$404
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/113:11 pmSTL - IDA
1 stop8h 24mAlaska Airlines
Sun 4/208:00 amIDA - STL
1 stop14h 59mAlaska Airlines
Deal found 3/26$422
This United deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/25:20 amSTL - IDA
1 stop5h 12mUnited Airlines
Fri 5/92:40 pmIDA - STL
1 stop5h 21mUnited Airlines
Deal found 3/27$446
This American Airlines deal was found by Cheapflights users on 3/27. 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 6/45:15 amMCI - IDA
1 stop17h 02mAmerican Airlines
Tue 6/101:51 pmIDA - MCI
1 stop8h 22mAmerican Airlines
Deal found 3/27$468
This Delta deal was found by Cheapflights users on 3/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/297:30 amSTL - IDA
1 stop5h 20mDelta
Mon 6/26:50 pmIDA - STL
1 stop5h 09mDelta
Deal found 3/28$487
This Delta deal was found by Cheapflights users on 3/27. 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 4/172:30 pmMCI - IDA
1 stop4h 45mDelta
Sat 4/191:10 pmIDA - MCI
2 stops9h 49mDelta
Deal found 3/27$493
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 6/55:29 pmSTL - IDA
1 stop20h 52mAmerican Airlines
Tue 6/101:51 pmIDA - STL
1 stop8h 09mAmerican Airlines
Deal found 3/27$498
This United deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:30 amMCI - IDA
3 stops10h 52mMultiple Airlines
Wed 9/106:13 amIDA - MCI
2 stops8h 48mMultiple Airlines
Deal found 3/27$1,124

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Idaho Falls 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 March 28, 2025.
Use the filters below to find and compare flights from Missouri to Idaho Falls that are best for you.

Fly from

Missouri

Fly to

Idaho Falls

Route

Depart

Return

Price

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 7/1

6:00 am-9:44 am

1 stop4h 44m

Idaho Falls Fanning Field

Tue 7/8

6:03 pm-11:31 pm

1 stop4h 28m

$351

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Thu 4/17

7:00 am-10:35 pm

1 stop16h 35m

Idaho Falls Fanning Field

Sat 4/19

8:00 am-2:01 pm

1 stop29h 01m

$404

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 4/11

3:11 pm-10:35 pm

1 stop8h 24m

Idaho Falls Fanning Field

Sun 4/20

8:00 am-11:59 pm

1 stop14h 59m

$422

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 5/2

5:20 am-9:32 am

1 stop5h 12m

Idaho Falls Fanning Field

Fri 5/9

2:40 pm-9:01 pm

1 stop5h 21m

$446

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Wed 6/4

5:15 am-9:17 pm

1 stop17h 02m

Idaho Falls Fanning Field

Tue 6/10

1:51 pm-11:13 pm

1 stop8h 22m

$468

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Thu 5/29

7:30 am-11:50 am

1 stop5h 20m

Idaho Falls Fanning Field

Mon 6/2

6:50 pm-12:59 am

1 stop5h 09m

$487

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Thu 4/17

2:30 pm-6:15 pm

1 stop4h 45m

Idaho Falls Fanning Field

Sat 4/19

1:10 pm-11:59 pm

2 stops9h 49m

$493

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Thu 6/5

5:29 pm-1:21 pm

1 stop20h 52m

Idaho Falls Fanning Field

Tue 6/10

1:51 pm-11:00 pm

1 stop8h 09m

$498

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Fri 9/5

7:30 am-5:22 pm

3 stops10h 52m

Idaho Falls Fanning Field

Wed 9/10

6:13 am-4:01 pm

2 stops8h 48m

$1,124

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Sun 7/20

6:40 am-10:33 am

1 stop4h 53m

$206

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 12 results
1
2

Best time to book a flight from Missouri to Idaho Falls

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

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

Currently, October is the cheapest month in which you can book a flight from Missouri to Idaho Falls (average of $380). Flying from Missouri to Idaho Falls in July is currently the most expensive (average of $628). 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.

Rainfall in Idaho Falls by month

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

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

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

If weather is an important factor for your trip to Idaho Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated March 28, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Missouri to Idaho Falls. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,798 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,896 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,603 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

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

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly into when you book flights from Missouri to Idaho Falls.

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

    The most popular route from Missouri to Idaho Falls is Kansas City - Idaho Falls Fanning Field. You may also consider Lambert-St Louis - Idaho Falls Fanning Field or Springfield-Branson - Idaho Falls Fanning Field.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Missouri to Idaho Falls (average of $380). Flying from Missouri to Idaho Falls in July is currently the most expensive (average of $628). 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

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Rexburg

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Top 3 airlines flying from Missouri to Idaho Falls

Discover the top 3 airlines that operate flights from Missouri to Idaho Falls. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$305Average$653FlexibilityNo cancel feeOn-time71%
DeltaCheapest$329Average$586FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$352Average$634FlexibilityNo cancel feeOn-time69%
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