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Idaho Falls

$335+ Cheap flights from Missouri to Idaho Falls (IDA)

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IDA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Missouri to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Missouri (USMO) to Idaho Falls (IDA). 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

$335
(Delta)
From Missouri to Idaho Falls Fanning Field
Search Deals

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 January 21, 2025.

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.
Sun 2/236:59 pmSTL - IDA
1 stop5h 20mDelta
Tue 2/256:00 amIDA - STL
1 stop6h 43mDelta
Deal found 1/20$335
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.
Fri 2/214:39 pmSTL - IDA
1 stop5h 28mUnited Airlines
Tue 2/2510:38 amIDA - STL
1 stop4h 55mUnited Airlines
Deal found 1/21$446
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 5/176:00 amMCI - IDA
1 stop4h 32mUnited Airlines
Fri 5/235:55 pmIDA - MCI
2 stops19h 30mUnited Airlines
Deal found 1/21$562
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/137:00 amMCI - IDA
1 stop9h 30mAlaska Airlines
Wed 3/198:00 amIDA - MCI
1 stop14h 59mAlaska Airlines
Deal found 1/21$606
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:00 amSTL - IDA
1 stop9h 30mAlaska Airlines
Tue 2/254:07 pmIDA - STL
3 stops23h 14mAlaska Airlines
Deal found 1/21$609
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.
Mon 1/272:27 pmSTL - IDA
1 stop8h 50mAmerican Airlines
Mon 2/35:30 amIDA - STL
1 stop7h 12mAmerican Airlines
Deal found 1/20$676
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 3/143:55 pmMCI - IDA
2 stops7h 38mDelta
Sun 3/236:55 pmIDA - MCI
1 stop4h 25mDelta
Deal found 1/21$1,049

Find flights from Missouri to Idaho Falls within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Sun 2/23

6:59 pm-11:19 pm

1 stop5h 20m

Idaho Falls Fanning Field

Tue 2/25

6:00 am-1:43 pm

1 stop6h 43m

$335

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 2/21

4:39 pm-9:07 pm

1 stop5h 28m

Idaho Falls Fanning Field

Tue 2/25

10:38 am-4:33 pm

1 stop4h 55m

$446

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Mon 2/3

5:45 am-9:52 am

1 stop5h 07m

Idaho Falls Fanning Field

Mon 2/10

5:50 pm-11:48 pm

1 stop4h 58m

$563

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 2/21

7:00 am-3:30 pm

1 stop9h 30m

Idaho Falls Fanning Field

Tue 2/25

4:07 pm-4:21 pm

3 stops23h 14m

$609

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Mon 1/27

2:27 pm-10:17 pm

1 stop8h 50m

Idaho Falls Fanning Field

Mon 2/3

5:30 am-1:42 pm

1 stop7h 12m

$676

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Fri 3/14

3:55 pm-10:33 pm

2 stops7h 38m

Idaho Falls Fanning Field

Sun 3/23

6:55 pm-12:20 am

1 stop4h 25m

$1,049

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Fri 3/14

10:24 am-10:36 pm

2 stops13h 12m

Idaho Falls Fanning Field

Sun 3/23

4:11 pm-8:58 am

2 stops15h 47m

$1,184

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Mon 1/27

5:00 pm-10:44 pm

1 stop6h 44m

$363

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 1/24

2:27 pm-10:17 pm

1 stop8h 50m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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.

Travel insights for flights from Missouri to Idaho Falls

Get recent, data-driven insights about flights from Missouri to Idaho Falls including ideal travel times, pricing trends, and more.

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 January 21, 2025.
Read reviews from past customers who have flown Delta, United Airlines and Alaska 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
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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
9,706 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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
8,521 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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
8,984 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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 Lambert-St Louis - Idaho Falls Fanning Field. You may also consider Kansas City - 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$305Average$653FlexibilityNo cancel feeOn-time71%
DeltaCheapest$313Average$605FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$363Average$634FlexibilityNo cancel feeOn-time69%
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