$131+ Cheap flights from Missouri to Idaho
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.
STL — BOI
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to IdahoExplore the most affordable flight options available from Missouri to Idaho. 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 Missouri to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 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.
Wed 11/1111:40 am -
1 stop4h 30m
Sat 11/142:50 pm -
1 stop5h 45m
Deal found 9/15![Southwest logo]()
$252
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:17 am -
1 stop7h 18m
Wed 10/219:12 am -
1 stop7h 06m
Deal found 9/16![Alaska Airlines logo]()
$257
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.
Sat 11/147:00 am -
1 stop6h 30m
Wed 11/185:00 am -
1 stop6h 56m
Deal found 9/16![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 10/145:25 am -
1 stop6h 59m
Wed 10/212:02 pm -
2 stops8h 21m
Deal found 9/16![American Airlines logo]()
$262
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 10/211:48 pm -
2 stops10h 28m
Tue 10/275:00 am -
1 stop5h 28m
Deal found 9/14![United Airlines logo]()
$266
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 10/147:00 pm -
1 stop5h 59m
Wed 10/2111:32 am -
1 stop5h 12m
Deal found 9/15![Delta logo]()
$269
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 10/145:40 am -
1 stop6h 44m
Tue 10/202:02 pm -
2 stops8h 40m
Deal found 9/15![American Airlines logo]()
$274
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.
Thu 11/267:00 am -
1 stop4h 42m
Wed 12/211:34 am -
1 stop4h 35m
Deal found 9/16![Delta logo]()
$275
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.
Sat 11/146:10 am -
1 stop5h 55m
Tue 11/171:05 pm -
1 stop7h 20m
Deal found 9/13![Southwest logo]()
$276
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 10/73:34 pm -
1 stop6h 34m
Mon 10/125:04 pm -
1 stop5h 13m
Deal found 9/15![Delta logo]()
$279
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.
Tue 10/205:40 am -
2 stops8h 42m
Wed 10/212:02 pm -
2 stops8h 40m
Deal found 9/15![American Airlines logo]()
$280
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.
Thu 11/266:34 am -
2 stops12h 55m
Wed 12/26:06 am -
1 stop6h 13m
Deal found 9/14![American Airlines logo]()
$280
Best flights from Missouri to IdahoDiscover carefully curated flight deals from Missouri to Idaho 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 Missouri to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 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.
Sat 11/147:00 am -
1 stop6h 30m
Wed 11/185:00 am -
1 stop6h 56m
Deal found 9/16![Alaska Airlines logo]()
$261
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.
Wed 11/1111:40 am -
1 stop4h 30m
Sat 11/145:30 am -
1 stop5h 50m
Deal found 9/13![Southwest logo]()
$272
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:59 pm -
1 stop7h 00m
Sat 10/315:30 am -
1 stop5h 23m
Deal found 9/17![Delta logo]()
$309
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.
Tue 11/312:58 pm -
1 stop9h 42m
Tue 11/106:25 am -
2 stops10h 57m
Deal found 9/15![American Airlines logo]()
$310
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:00 am -
2 stops10h 03m
Sat 1/92:45 pm -
1 stop5h 07m
Deal found 9/15![United Airlines logo]()
$352
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 11/33:25 pm -
1 stop9h 00m
Tue 11/102:15 pm -
1 stop6h 55m
Deal found 9/15![Southwest logo]()
$305
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 1/64:22 pm -
1 stop8h 24m
Sat 1/98:12 am -
1 stop6h 14m
Deal found 9/16![Alaska Airlines logo]()
$307
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:25 am -
1 stop6h 59m
Sat 10/318:00 am -
2 stops10h 53m
Deal found 9/17![American Airlines logo]()
$326
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 11/1411:27 am -
2 stops11h 44m
Wed 11/184:10 pm -
1 stop5h 42m
Deal found 9/16![United Airlines logo]()
$356
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.
Tue 10/276:00 am -
1 stop7h 50m
Fri 11/66:00 am -
2 stops13h 19m
Deal found 9/13![Delta logo]()
$384
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.
Sat 11/1410:35 am -
2 stops8h 40m
Tue 11/176:20 am -
2 stops8h 20m
Deal found 9/13![Southwest logo]()
$365
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.
Thu 10/157:16 am -
1 stop6h 34m
Mon 10/1912:49 pm -
1 stop8h 34m
Deal found 9/14![American Airlines logo]()
$369
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:36 pm -
1 stop6h 17m
Wed 12/304:10 pm -
1 stop5h 34m
Deal found 9/13![United Airlines logo]()
$389
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.
Thu 10/154:42 pm -
1 stop8h 17m
Fri 10/234:18 pm -
1 stop6h 41m
Deal found 9/15![Alaska Airlines logo]()
$400
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:00 am -
1 stop7h 24m
Fri 10/94:05 pm -
1 stop6h 37m
Deal found 9/15![United Airlines logo]()
$391
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.
Fri 10/95:00 am -
1 stop8h 50m
Tue 10/132:08 pm -
1 stop8h 11m
Deal found 9/13![American Airlines logo]()
$396
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:25 pm -
2 stops10h 19m
Sun 11/17:00 am -
2 stops12h 19m
Deal found 9/14![Delta logo]()
$436
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:02 am -
1 stop7h 37m
Tue 10/277:20 am -
1 stop6h 24m
Deal found 9/12![Alaska Airlines logo]()
$409
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.
Wed 12/96:50 am -
2 stops8h 40m
Wed 12/306:30 pm -
2 stops14h 30m
Deal found 9/13![Southwest logo]()
$412
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.
Tue 9/295:30 am -
1 stop5h 23m
Sat 10/35:51 pm -
1 stop4h 51m
Deal found 9/14![United Airlines logo]()
$399
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.
Sat 12/1210:40 am -
2 stops9h 44m
Fri 1/112:21 pm -
1 stop5h 48m
Deal found 9/16![American Airlines logo]()
$399
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 10/232:22 pm -
1 stop6h 04m
Mon 10/265:37 pm -
1 stop6h 07m
Deal found 9/16![Delta logo]()
$445
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 10/228:40 pm -
2 stops15h 40m
Sun 10/259:05 am -
2 stops14h 20m
Deal found 9/15![Southwest logo]()
$417
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.
Mon 1/115:20 am -
2 stops17h 55m
Fri 1/158:21 am -
2 stops9h 49m
Deal found 9/15![Alaska Airlines logo]()
$424
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 10/2411:35 am -
2 stops12h 36m
Tue 10/275:00 am -
1 stop5h 38m
Deal found 9/16![United Airlines logo]()
$400
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.
Thu 11/198:22 am -
1 stop6h 30m
Wed 11/251:24 pm -
1 stop8h 17m
Deal found 9/12![American Airlines logo]()
$406
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/125:40 pm -
1 stop8h 05m
Mon 3/156:25 am -
1 stop6h 50m
Deal found 9/12![Southwest logo]()
$423
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.
Tue 9/292:25 pm -
1 stop5h 56m
Wed 10/75:37 pm -
1 stop6h 07m
Deal found 9/16![Delta logo]()
$492
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:00 am -
1 stop7h 21m
Tue 10/64:05 pm -
1 stop6h 39m
Deal found 9/15![United Airlines logo]()
$407
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.
Fri 11/611:35 am -
2 stops12h 24m
Tue 11/106:36 am -
2 stops11h 46m
Deal found 9/16![American Airlines logo]()
$411
Last-minute flights from Missouri to IdahoDiscover last-minute flight deals from Missouri to Idaho. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Idaho. Data last updated September 17, 2026 and is based on user searches.
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 10/75:59 pm -
1 stop7h 45m
Sat 10/101:00 pm -
1 stop8h 31m
Deal found 9/15![Delta logo]()
$261
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 10/73:34 pm -
1 stop6h 34m
Mon 10/125:04 pm -
1 stop5h 13m
Deal found 9/15![Delta logo]()
$279
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 10/93:34 pm -
1 stop6h 34m
Sat 10/101:25 pm -
1 stop5h 47m
Deal found 9/15![Delta logo]()
$296
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:17 am -
1 stop7h 18m
Wed 10/219:12 am -
1 stop7h 06m
Deal found 9/16![Alaska Airlines logo]()
$257
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 10/145:25 am -
1 stop6h 59m
Wed 10/212:02 pm -
2 stops8h 21m
Deal found 9/16![American Airlines logo]()
$262
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 10/147:00 pm -
1 stop5h 59m
Wed 10/2111:32 am -
1 stop5h 12m
Deal found 9/15![Delta logo]()
$269
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 10/145:40 am -
1 stop6h 44m
Tue 10/202:02 pm -
2 stops8h 40m
Deal found 9/15![American Airlines logo]()
$274
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 10/145:35 pm -
1 stop7h 24m
Thu 10/226:49 pm -
1 stop4h 55m
Deal found 9/15![Delta logo]()
$288
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.
Tue 10/205:40 am -
2 stops8h 42m
Wed 10/212:02 pm -
2 stops8h 40m
Deal found 9/15![American Airlines logo]()
$280
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 10/211:48 pm -
2 stops10h 28m
Tue 10/275:00 am -
1 stop5h 28m
Deal found 9/14![United Airlines logo]()
$266
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.
Thu 10/225:25 am -
1 stop6h 59m
Mon 10/263:24 pm -
1 stop8h 04m
Deal found 9/14![American Airlines logo]()
$293
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.
Fri 10/235:25 am -
1 stop6h 59m
Sat 10/316:17 am -
1 stop6h 17m
Deal found 9/14![American Airlines logo]()
$292
One-way flights from Missouri to IdahoSearch for one-way flight options from Missouri to Idaho. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Missouri to Idaho. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
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 10/246:00 am -
1 stop7h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$131
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 10/147:08 am -
1 stop6h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$135
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.
Thu 10/155:25 am -
1 stop6h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$147
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.
Mon 12/216:25 pm -
1 stop7h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$149
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 12/165:25 pm -
1 stop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$153
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 10/228:40 pm -
2 stops15h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$158
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.
Wed 10/218:50 pm -
2 stops16h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Southwest logo]()
$164
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 10/166:00 am -
1 stop4h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$164
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:17 pm -
1 stop26h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$170
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 10/145:40 am -
2 stops8h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$179
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.
Wed 10/218:03 am -
1 stop7h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![American Airlines logo]()
$185
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:30 pm -
1 stop16h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$189
Find flight deals from Missouri to Idaho
Keep the following information in mind while searching for Missouri to Idaho flight deals. Data was last updated September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $252 (Southwest) |
One-way from | $131 (United Airlines) |
Popular in | February |
Cheapest in | January |
Average price | $482 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Idaho 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 Missouri to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Wed 10/14
5:10 am-9:34 am
1 stop5h 24m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$135
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Wed 12/2
6:03 am-12:42 pm
1 stop7h 39m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$135
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Sat 10/17
5:10 am-9:33 am
1 stop5h 23m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$135
Kansas CitySpokane
MCI Kansas City - GEG Spokane
MCIGEG
Kansas City
Sat 10/24
1:48 pm-10:11 pm
2 stops10h 23m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$136
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Thu 10/15
5:25 am-11:24 am
1 stop6h 59m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$147
Quickest round-trip
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Thu 10/22
6:00 am-9:34 am
1 stop4h 34m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$147
St. LouisSpokane
STL Lambert-St Louis - GEG Spokane
STLGEG
Lambert-St Louis
Wed 12/16
5:25 pm-9:50 pm
1 stop6h 25m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$153
St. LouisSpokane
STL Lambert-St Louis - GEG Spokane
STLGEG
Lambert-St Louis
Wed 10/21
8:50 pm-10:50 am
2 stops16h 00m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$164
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Fri 10/23
5:59 pm-11:59 pm
1 stop7h 00m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Fri 10/16
6:00 am-9:34 am
1 stop4h 34m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Missouri with our price prediction graph.
MCI-GEG
STL-BOI
MCI-BOI
STL-GEG
SGF-GEG
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
USMO-USID
MCI-GEG
STL-BOI
MCI-BOI
STL-GEG
What is the cheapest month to book a flight from Missouri to Idaho?
Currently, January is the cheapest month in which you can book a flight from Missouri to Idaho (average of $385). Flying from Missouri to Idaho in February is currently the most expensive (average of $566). 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 Missouri to Idaho?
Airfare is below average for this route at the moment.
Missouri to Idaho flights typically cost between $430 and $551 in October.The cheapest round-trip price found within the last 5 days was $269 on Delta (Oct 14-Oct 21).
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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. Reviews last updated September 17, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Missouri to Idaho by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Related info for your journey
Find useful and relevant information for your journey from Missouri to Idaho. 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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Missouri to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Idaho by cabin class
Find flights from Missouri to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Idaho flights
Browse other Missouri and Idaho 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 Idaho
Find the right flight back to Missouri after your stay in Idaho
Missouri to Idaho flights
Consider these flights traveling from Missouri to Idaho.
Top 5 airlines flying from Missouri to Idaho
Discover the top 5 airlines that operate flights from Missouri to Idaho. 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$198 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$240 | Average$401 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$267 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$336 | Average$507 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$354 | Average$424 | FlexibilityNo cancel fee | On-time75% |