$135+ Cheap flights from Idaho 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STL
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Idaho 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 to MissouriExplore the most affordable flight options available from Idaho to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Idaho to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/74:18 pm -
1 stop6h 41m
Tue 10/136:17 am -
1 stop7h 18m
Deal found 9/16![Alaska Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/1312:42 pm -
1 stop9h 17m
Tue 10/206:14 pm -
1 stop6h 39m
Deal found 9/15![Alaska Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/212:02 pm -
2 stops8h 21m
Wed 10/288:15 am -
1 stop6h 07m
Deal found 9/15![American Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:45 am -
1 stop5h 45m
Tue 11/102:05 pm -
1 stop8h 35m
Deal found 9/15![Southwest logo]()
$264
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/72:02 pm -
2 stops8h 21m
Wed 10/148:15 am -
1 stop6h 07m
Deal found 9/15![American Airlines logo]()
$265
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/212:41 pm -
1 stop8h 01m
Wed 11/116:00 am -
1 stop8h 51m
Deal found 9/15![American Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:55 pm -
2 stops7h 40m
Wed 11/118:25 am -
1 stop7h 45m
Deal found 9/15![Southwest logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/54:18 pm -
1 stop6h 41m
Wed 10/76:17 am -
1 stop7h 18m
Deal found 9/16![Alaska Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/192:41 pm -
1 stop6h 16m
Sat 10/245:25 am -
2 stops8h 57m
Deal found 9/15![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/142:41 pm -
1 stop6h 16m
Wed 10/215:25 am -
2 stops8h 57m
Deal found 9/16![American Airlines logo]()
$285
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/284:18 pm -
1 stop6h 41m
Thu 10/297:02 am -
1 stop9h 21m
Deal found 9/16![Alaska Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 9/16. 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 10/96:49 pm -
1 stop4h 28m
Sat 10/176:30 am -
1 stop7h 05m
Deal found 9/16![Delta logo]()
$292
Best flights from Idaho to MissouriDiscover carefully curated flight deals from Idaho to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Idaho to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:45 am -
1 stop5h 45m
Tue 11/108:25 am -
2 stops8h 25m
Deal found 9/15![Southwest logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/82:06 pm -
1 stop8h 53m
Tue 10/136:17 am -
1 stop7h 18m
Deal found 9/16![Alaska Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/202:02 pm -
2 stops8h 40m
Thu 10/227:29 am -
1 stop8h 04m
Deal found 9/16![American Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:04 pm -
1 stop5h 13m
Tue 10/135:59 pm -
1 stop7h 45m
Deal found 9/15![Delta logo]()
$296
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:05 pm -
1 stop6h 39m
Sat 10/179:00 am -
1 stop7h 24m
Deal found 9/14![United Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/284:18 pm -
1 stop6h 41m
Thu 10/297:02 am -
1 stop9h 21m
Deal found 9/15![Alaska Airlines logo]()
$288
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:25 pm -
2 stops9h 30m
Thu 10/2210:00 pm -
2 stops14h 20m
Deal found 9/16![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:44 pm -
1 stop5h 44m
Tue 12/153:32 pm -
1 stop6h 46m
Deal found 9/15![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 9/16. 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 12/96:00 am -
1 stop5h 36m
Wed 12/167:08 am -
1 stop7h 13m
Deal found 9/16![Delta logo]()
$305
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:35 pm -
1 stop5h 30m
Tue 12/156:30 am -
1 stop5h 45m
Deal found 9/14![Southwest logo]()
$306
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/82:48 pm -
1 stop4h 45m
Wed 12/95:45 am -
2 stops10h 05m
Deal found 9/16![United Airlines logo]()
$352
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:24 pm -
1 stop8h 16m
Sat 11/147:14 am -
1 stop6h 23m
Deal found 9/13![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/165:00 am -
1 stop5h 28m
Mon 11/165:20 pm -
1 stop5h 51m
Deal found 9/16![United Airlines logo]()
$360
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:49 pm -
1 stop8h 53m
Tue 10/135:40 am -
1 stop8h 19m
Deal found 9/12![American Airlines logo]()
$369
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/54:18 pm -
1 stop6h 41m
Thu 10/86:14 pm -
1 stop6h 40m
Deal found 9/16![Alaska Airlines logo]()
$374
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:30 pm -
1 stop8h 55m
Tue 10/277:15 am -
1 stop6h 45m
Deal found 9/13![Southwest logo]()
$342
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:24 pm -
1 stop6h 18m
Wed 10/147:16 am -
1 stop8h 17m
Deal found 9/14![American Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/285:00 am -
2 stops9h 43m
Thu 10/291:40 pm -
1 stop5h 23m
Deal found 9/16![United Airlines logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 9/15![Alaska Airlines logo]()
$392
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:32 am -
2 stops8h 47m
Sat 11/146:00 am -
2 stops13h 34m
Deal found 9/13![Delta logo]()
$399
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:40 pm -
1 stop6h 30m
Thu 10/227:00 pm -
1 stop7h 35m
Deal found 9/14![Southwest logo]()
$373
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:30 am -
2 stops10h 09m
Tue 10/132:20 pm -
1 stop8h 23m
Deal found 9/13![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/29:00 am -
2 stops12h 30m
Sat 12/53:15 pm -
1 stop9h 00m
Deal found 9/16![United Airlines logo]()
$390
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:25 pm -
1 stop5h 45m
Mon 10/197:40 pm -
1 stop7h 05m
Deal found 9/13![Southwest logo]()
$378
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:30 pm -
1 stop5h 12m
Tue 10/65:30 am -
1 stop5h 04m
Deal found 9/12![United Airlines logo]()
$394
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:08 pm -
1 stop8h 20m
Tue 10/132:20 pm -
1 stop8h 23m
Deal found 9/12![American Airlines logo]()
$396
This Delta deal was found by Cheapflights users on 9/16. 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 10/95:37 pm -
1 stop6h 07m
Sun 10/112:22 pm -
1 stop6h 04m
Deal found 9/16![Delta logo]()
$445
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1410:12 am -
2 stops12h 47m
Sun 10/186:14 pm -
1 stop6h 40m
Deal found 9/17![Alaska Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:35 am -
2 stops13h 30m
Thu 12/175:05 am -
2 stops8h 25m
Deal found 9/15![Southwest logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/107:00 am -
1 stop9h 05m
Wed 11/114:39 pm -
1 stop6h 32m
Deal found 9/16![United Airlines logo]()
$395
Last-minute flights from Idaho to MissouriDiscover last-minute flight deals from Idaho to Missouri. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Missouri. Data last updated September 17, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/54:18 pm -
1 stop6h 41m
Wed 10/76:17 am -
1 stop7h 18m
Deal found 9/16![Alaska Airlines logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/74:18 pm -
1 stop6h 41m
Tue 10/136:17 am -
1 stop7h 18m
Deal found 9/16![Alaska Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/72:02 pm -
2 stops8h 21m
Wed 10/148:15 am -
1 stop6h 07m
Deal found 9/15![American Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 9/16. 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 10/96:49 pm -
1 stop4h 28m
Sat 10/176:30 am -
1 stop7h 05m
Deal found 9/16![Delta logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/1312:42 pm -
1 stop9h 17m
Tue 10/206:14 pm -
1 stop6h 39m
Deal found 9/15![Alaska Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/142:41 pm -
1 stop6h 16m
Wed 10/215:25 am -
2 stops8h 57m
Deal found 9/16![American Airlines logo]()
$285
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/192:41 pm -
1 stop6h 16m
Sat 10/245:25 am -
2 stops8h 57m
Deal found 9/15![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/202:02 pm -
2 stops8h 40m
Thu 10/227:29 am -
1 stop8h 04m
Deal found 9/16![American Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/212:02 pm -
2 stops8h 21m
Wed 10/288:15 am -
1 stop6h 07m
Deal found 9/15![American Airlines logo]()
$262
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/212:41 pm -
1 stop8h 01m
Wed 11/116:00 am -
1 stop8h 51m
Deal found 9/15![American Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:55 pm -
2 stops7h 40m
Wed 11/118:25 am -
1 stop7h 45m
Deal found 9/15![Southwest logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/284:18 pm -
1 stop6h 41m
Thu 10/297:02 am -
1 stop9h 21m
Deal found 9/16![Alaska Airlines logo]()
$288
One-way flights from Idaho to MissouriSearch for one-way flight options from Idaho to Missouri. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Idaho to Missouri. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Delta deal was found by Cheapflights users on 9/16. 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 10/245:30 am -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$135
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.
Mon 10/192:50 pm -
2 stops27h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$139
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/245:00 am -
2 stops9h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$140
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:24 pm -
1 stop8h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$147
This Delta deal was found by Cheapflights users on 9/16. 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 10/193:30 pm -
1 stop6h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$149
This American Airlines deal was found by Cheapflights users on 9/16. 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 12/92:13 pm -
1 stop7h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$153
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:50 pm -
1 stop20h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$155
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:05 am -
2 stops9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$158
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/2312:26 pm -
1 stop7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:50 pm -
1 stop20h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$172
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 am -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$175
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/192:08 pm -
1 stop8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$176
Find flight deals from Idaho to Missouri
Keep the following information in mind while searching for Idaho to Missouri flight deals. Data was last updated September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Alaska Airlines) |
One-way from | $135 (Delta) |
Popular in | May |
Cheapest in | April |
Average price | $479 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho 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 September 17, 2026.
Use the filters below to find and compare flights from Idaho to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSt. Louis
BOI Boise Air Term. Gowen Fld - STL Lambert-St Louis
BOISTL
Boise Air Term. Gowen Fld
Sat 10/24
5:30 am-2:45 pm
1 stop8h 15m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$135
SpokaneKansas City
GEG Spokane - MCI Kansas City
GEGMCI
Spokane
Mon 10/19
3:30 pm-11:31 pm
1 stop6h 01m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$149
SpokaneSt. Louis
GEG Spokane - STL Lambert-St Louis
GEGSTL
Spokane
Tue 12/8
6:01 am-4:40 pm
1 stop8h 39m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$153
SpokaneSt. Louis
GEG Spokane - STL Lambert-St Louis
GEGSTL
Spokane
Wed 12/9
2:13 pm-11:59 pm
1 stop7h 46m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$153
SpokaneSt. Louis
GEG Spokane - STL Lambert-St Louis
GEGSTL
Spokane
Wed 12/9
6:05 am-5:25 pm
2 stops9h 20m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$158
BoiseSt. Louis
BOI Boise Air Term. Gowen Fld - STL Lambert-St Louis
BOISTL
Boise Air Term. Gowen Fld
Thu 10/8
2:50 pm-12:35 pm
1 stop20h 45m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$170
BoiseKansas City
BOI Boise Air Term. Gowen Fld - MCI Kansas City
BOIMCI
Boise Air Term. Gowen Fld
Sun 10/25
2:50 pm-11:58 am
1 stop20h 08m
Kansas City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$172
Quickest round-trip
BoiseSt. Louis
BOI Boise Air Term. Gowen Fld - STL Lambert-St Louis
BOISTL
Boise Air Term. Gowen Fld
Fri 10/23
6:49 pm-12:44 am
1 stop4h 55m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$172
SpokaneSt. Louis
GEG Spokane - STL Lambert-St Louis
GEGSTL
Spokane
Thu 12/10
6:50 am-4:30 pm
1 stop7h 40m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$175
SpokaneKansas City
GEG Spokane - MCI Kansas City
GEGMCI
Spokane
Mon 10/19
2:08 pm-12:28 am
1 stop8h 20m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$176
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Idaho with our price prediction graph.
BOI-MCI
GEG-MCI
BOI-STL
GEG-STL
IDA-STL
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 to Missouri
USID-USMO
BOI-MCI
GEG-MCI
BOI-STL
GEG-STL
What is the cheapest month to book a flight from Idaho to Missouri?
Currently, February is the cheapest month in which you can book a flight from Idaho to Missouri (average of $382). Flying from Idaho to Missouri in July is currently the most expensive (average of $579). 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 to Missouri?
Airfare is below average for this route at the moment.
Idaho to Missouri flights typically cost between $444 and $562 in November.The cheapest round-trip price found within the last 5 days was $264 on Southwest (Nov 3-Nov 10).
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 17, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Idaho to Missouri have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Related info for your journey
Find useful and relevant information for your journey from Idaho to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Idaho 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 to Missouri by cabin class
Find flights from Idaho to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Missouri flights
Browse other Idaho and Missouri flight options. Last updated on September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Missouri
Find the right flight back to Idaho after your stay in Missouri
Idaho to Missouri flights
Consider these flights traveling from Idaho to Missouri.
Top 5 airlines flying from Idaho to Missouri
Discover the top 5 airlines that operate flights from Idaho 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 September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$426 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$262 | Average$485 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$286 | Average$465 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$328 | Average$636 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$334 | Average$486 | FlexibilityNo cancel fee | On-time63% |