$185+ 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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — STL
Nov 15 — Nov 221
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to Missouri with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Idaho Falls to MissouriExplore 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 October 16, 2026.
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 October 16, 2026.
This Delta deal was found by Cheapflights users on 10/14. 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.
Fri 12/46:59 pm -
1 stop4h 28m
Mon 12/77:00 am -
1 stop6h 17m
Deal found 10/14![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 12/36:59 pm -
1 stop4h 28m
Mon 12/76:02 pm -
1 stop5h 05m
Deal found 10/14![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 10/14. 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.
Fri 12/46:59 pm -
2 stops13h 30m
Sun 12/66:02 pm -
1 stop5h 05m
Deal found 10/14![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 12/36:59 pm -
1 stop4h 28m
Sun 12/66:02 pm -
1 stop5h 05m
Deal found 10/14![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 10/14. 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.
Fri 12/46:59 pm -
1 stop4h 28m
Tue 12/87:00 am -
1 stop6h 17m
Deal found 10/14![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 10/14. 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.
Sat 12/55:35 am -
1 stop6h 52m
Tue 12/82:16 pm -
2 stops8h 51m
Deal found 10/14![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 12/36:59 pm -
1 stop4h 28m
Tue 12/87:00 am -
1 stop6h 17m
Deal found 10/14![Delta logo]()
$383
This Priceline deal was found by Cheapflights users on 10/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:04 am -
1 stop6h 52m
Fri 11/62:52 pm -
1 stop9h 02m
Deal found 10/15![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 10/12. 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.
Tue 10/276:56 pm -
1 stop4h 48m
Sat 10/315:00 pm -
1 stop6h 10m
Deal found 10/12![Delta logo]()
$399
This American Airlines deal was found by Cheapflights users on 10/15. 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 10/301:39 pm -
1 stop5h 28m
Tue 11/31:38 pm -
2 stops10h 21m
Deal found 10/15![American Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 10/14. 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.
Sun 12/66:59 pm -
1 stop4h 28m
Tue 12/87:00 am -
1 stop6h 17m
Deal found 10/14![Delta logo]()
$407
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:50 pm -
1 stop6h 07m
Mon 11/211:35 am -
2 stops12h 24m
Deal found 10/14![American Airlines logo]()
$414
Best flights from Idaho Falls to MissouriDiscover carefully curated flight deals from Idaho Falls to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 16, 2026.
Discover carefully curated flight deals from Idaho Falls to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 16, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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.
Tue 10/271:05 pm -
2 stops9h 16m
Sat 10/3112:00 pm -
2 stops11h 10m
Deal found 10/12![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/310:35 am -
2 stops10h 16m
Thu 11/58:45 am -
1 stop5h 43m
Deal found 10/15![United Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 10/15. 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 10/301:50 pm -
1 stop7h 52m
Tue 11/32:49 pm -
1 stop7h 54m
Deal found 10/15![American Airlines logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:09 am -
1 stop8h 35m
Wed 11/46:00 am -
1 stop10h 18m
Deal found 10/15![Alaska Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:35 pm -
1 stop5h 26m
Sat 10/319:05 am -
1 stop7h 33m
Deal found 10/12![United Airlines logo]()
$431
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Sat 12/52:40 pm -
1 stop4h 53m
Wed 12/95:45 am -
1 stop5h 06m
Deal found 10/13![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:35 pm -
1 stop5h 24m
Wed 11/48:50 am -
1 stop5h 38m
Deal found 10/14![United Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:39 pm -
1 stop7h 46m
Mon 11/24:36 pm -
1 stop6h 07m
Deal found 10/14![American Airlines logo]()
$646
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 10/282:35 pm -
1 stop5h 24m
Sun 11/16:00 am -
2 stops8h 28m
Deal found 10/13![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 3/107:00 am -
1 stop4h 52m
Sun 3/146:00 am -
1 stop4h 28m
Deal found 10/13![United Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:35 pm -
1 stop5h 26m
Tue 11/1711:11 am -
2 stops10h 58m
Deal found 10/14![United Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 10/295:40 pm -
1 stop5h 12m
Mon 11/25:45 am -
1 stop5h 08m
Deal found 10/13![United Airlines logo]()
$509
Last-minute flights from Idaho Falls to MissouriDiscover last-minute flight deals from Idaho Falls to Missouri. Data last updated October 16, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Missouri. Data last updated October 16, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/12. 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.
Thu 10/226:56 pm -
1 stop4h 48m
Mon 10/262:38 pm -
2 stops8h 32m
Deal found 10/12![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 10/12. 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.
Tue 10/276:56 pm -
1 stop4h 48m
Sat 10/315:00 pm -
1 stop6h 10m
Deal found 10/12![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:35 pm -
1 stop5h 26m
Sat 10/319:05 am -
1 stop7h 33m
Deal found 10/12![United Airlines logo]()
$431
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:50 pm -
1 stop6h 07m
Mon 11/211:35 am -
2 stops12h 24m
Deal found 10/14![American Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 10/15. 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 10/301:39 pm -
1 stop5h 28m
Tue 11/31:38 pm -
2 stops10h 21m
Deal found 10/15![American Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:09 am -
1 stop8h 35m
Wed 11/46:00 am -
1 stop10h 18m
Deal found 10/15![Alaska Airlines logo]()
$462
This Priceline deal was found by Cheapflights users on 10/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:04 am -
1 stop6h 52m
Fri 11/62:52 pm -
1 stop9h 02m
Deal found 10/15![Alaska Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/310:35 am -
1 stop4h 36m
Thu 11/58:45 am -
1 stop5h 43m
Deal found 10/15![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/310:35 am -
2 stops10h 16m
Fri 11/68:45 am -
1 stop5h 43m
Deal found 10/15![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:36 am -
2 stops11h 46m
Sat 11/72:28 pm -
1 stop9h 31m
Deal found 10/13![American Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/142:35 pm -
1 stop5h 26m
Tue 11/179:05 am -
1 stop5h 23m
Deal found 10/15![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:30 pm -
1 stop5h 17m
Tue 12/88:45 am -
1 stop5h 52m
Deal found 10/14![United Airlines logo]()
$473
One-way flights from Idaho Falls to MissouriSearch for one-way flight options from Idaho Falls to Missouri. Find affordable one-way fares based on user searches. Data last updated October 16, 2026.
Search for one-way flight options from Idaho Falls to Missouri. Find affordable one-way fares based on user searches. Data last updated October 16, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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.
Tue 12/295:20 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$185
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Tue 12/1510:40 am -
1 stop4h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![United Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Tue 12/152:35 pm -
3 stops28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:02 am -
1 stop10h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Allegiant Air logo]()
$277
This United Airlines deal was found by Cheapflights users on 10/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/297:00 am -
2 stops11h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![United Airlines logo]()
$295
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:15 am -
1 stop6h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![American Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:40 am -
2 stops11h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![United Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/254:20 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![United Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Wed 12/1611:05 am -
3 stops46h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Allegiant Air logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:02 am -
3 stops34h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 12/175:35 am -
2 stops10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$545
This United Airlines deal was found by Cheapflights users on 10/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:00 am -
2 stops10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![United Airlines logo]()
$547
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 October 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Delta) |
One-way from | $185 (United Airlines) |
Popular in | September |
Cheapest in | May |
Average price | $510 |
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 7,457,451 searches. Data last updated October 16, 2026.
Use the filters below to find and compare flights from Idaho Falls to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsSt. Louis
IDA Idaho Falls Fanning Field - STL Lambert-St Louis
IDASTL
Idaho Falls Fanning Field
Tue 12/29
2:37 pm-9:08 pm
1 stop5h 31m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$185
Idaho FallsSt. Louis
IDA Idaho Falls Fanning Field - STL Lambert-St Louis
IDASTL
Idaho Falls Fanning Field
Tue 12/29
5:20 am-1:20 pm
1 stop7h 00m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$185
Quickest round-trip
Idaho FallsKansas City
IDA Idaho Falls Fanning Field - MCI Kansas City
IDAMCI
Idaho Falls Fanning Field
Tue 12/15
10:40 am-4:14 pm
1 stop4h 34m
Kansas City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
Idaho FallsKansas City
IDA Idaho Falls Fanning Field - MCI Kansas City
IDAMCI
Idaho Falls Fanning Field
Tue 12/15
2:35 pm-7:35 pm
3 stops28h 00m
Kansas City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$241
Idaho FallsSpringfield
IDA Idaho Falls Fanning Field - SGF Springfield-Branson
IDASGF
Idaho Falls Fanning Field
Sun 11/8
9:02 am-8:21 pm
1 stop10h 19m
Springfield-Branson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$277
Idaho FallsSt. Louis
IDA Idaho Falls Fanning Field - STL Lambert-St Louis
IDASTL
Idaho Falls Fanning Field
Tue 10/27
1:05 pm-11:21 pm
2 stops9h 16m
Lambert-St Louis
Sat 10/31
12:00 pm-10:10 pm
2 stops11h 10m
$409
Idaho FallsKansas City
IDA Idaho Falls Fanning Field - MCI Kansas City
IDAMCI
Idaho Falls Fanning Field
Tue 11/3
10:35 am-9:51 pm
2 stops10h 16m
Kansas City
Thu 11/5
8:45 am-1:28 pm
1 stop5h 43m
$419
Idaho FallsSpringfield
IDA Idaho Falls Fanning Field - SGF Springfield-Branson
IDASGF
Idaho Falls Fanning Field
Tue 10/27
2:35 pm-9:01 pm
1 stop5h 26m
Springfield-Branson
Sat 10/31
9:05 am-3:38 pm
1 stop7h 33m
$431
Idaho FallsSpringfield
IDA Idaho Falls Fanning Field - SGF Springfield-Branson
IDASGF
Idaho Falls Fanning Field
Fri 10/30
1:50 pm-10:42 pm
1 stop7h 52m
Springfield-Branson
Tue 11/3
2:49 pm-9:43 pm
1 stop7h 54m
$434
Idaho FallsKansas City
IDA Idaho Falls Fanning Field - MCI Kansas City
IDAMCI
Idaho Falls Fanning Field
Fri 12/25
4:20 pm-11:44 pm
1 stop6h 24m
Kansas City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$439
Showing 1-10 of 22 resultsSorted by cheapest first
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.
IDA-STL
IDA-MCI
IDA-SGF
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
IDA-USMO
IDA-STL
IDA-MCI
IDA-SGF
What is the cheapest month to book a flight from Idaho Falls to Missouri?
Currently, June is the cheapest month in which you can book a flight from Idaho Falls to Missouri (average of $398). Flying from Idaho Falls to Missouri in January is currently the most expensive (average of $647). 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.
How much does it cost to fly round-trip from Idaho Falls to Missouri?
Airfare is below average for this route at the moment.
Idaho Falls to Missouri flights typically cost between $486 and $755 in October.The cheapest round-trip price found within the last 5 days was $399 on Delta (Oct 27-Oct 31).
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 October 16, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited 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.
Food
7.0
Entertainment
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Entertainment
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Entertainment
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Entertainment
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Entertainment
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
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.
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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.
Complete your trip
Complete your trip to Missouri by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho Falls to Missouri by cabin class
Find flights from Idaho Falls to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho Falls and Missouri flights
Browse other Idaho Falls and Missouri flight options. Last updated on October 16, 2026.
Popular flight searches
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Idaho Falls to Missouri flights
Consider these flights traveling from Idaho Falls to Missouri.
Top 4 airlines flying from Idaho Falls to Missouri
Discover the top 4 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 7,457,451 searches. Data last updated October 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$328 | Average$943 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$389 | Average$499 | FlexibilityNo cancel fee | On-time75% |