$138+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOI
Dec 3 — Dec 101
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Idaho with Cheapflights
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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 November 3, 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 November 3, 2026.
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:00 am -
2 stops10h 29m
Thu 12/311:12 pm -
1 stop23h 38m
Deal found 11/1![Alaska Airlines logo]()
$324
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:29 pm -
1 stop6h 31m
Tue 12/14:10 pm -
1 stop22h 13m
Deal found 10/30![Multiple Airlines logo]()
$334
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:29 pm -
1 stop6h 31m
Sun 11/297:55 pm -
1 stop16h 54m
Deal found 10/30![Frontier logo]()
$337
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/215:45 am -
1 stop5h 09m
Thu 12/242:37 pm -
1 stop5h 10m
Deal found 11/1![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 10/30. 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 12/222:15 pm -
1 stop4h 58m
Sun 12/275:40 am -
1 stop6h 40m
Deal found 10/30![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 10/30. 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 11/261:40 pm -
1 stop5h 30m
Tue 12/12:50 pm -
1 stop6h 05m
Deal found 10/30![Southwest logo]()
$355
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:29 pm -
1 stop6h 31m
Sun 11/297:55 pm -
1 stop16h 54m
Deal found 11/2![Frontier logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/242:25 pm -
1 stop7h 54m
Tue 12/292:37 pm -
1 stop5h 31m
Deal found 10/30![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/265:45 am -
2 stops10h 13m
Tue 12/16:15 am -
1 stop5h 15m
Deal found 10/30![United Airlines logo]()
$360
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/269:00 am -
2 stops9h 00m
Wed 12/22:08 pm -
2 stops9h 28m
Deal found 11/3![American Airlines logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 12/244:32 pm -
1 stop8h 13m
Mon 12/286:00 am -
1 stop8h 34m
Deal found 10/31![Alaska Airlines logo]()
$369
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 12/126:04 am -
1 stop7h 17m
Mon 12/142:05 pm -
1 stop8h 54m
Deal found 11/2![Alaska Airlines logo]()
$369
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 November 3, 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 November 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Thu 1/148:35 pm -
1 stop14h 36m
Thu 1/219:01 am -
1 stop9h 44m
Deal found 11/1![Allegiant Air logo]()
$329
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/215:45 am -
1 stop5h 09m
Thu 12/242:37 pm -
1 stop5h 10m
Deal found 11/1![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 10/31. 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 12/232:15 pm -
1 stop4h 58m
Sun 12/275:40 am -
1 stop6h 40m
Deal found 10/31![Delta logo]()
$349
This American Airlines deal was found by Cheapflights users on 10/31. 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 2/236:16 pm -
1 stop6h 48m
Sat 2/276:05 am -
2 stops10h 00m
Deal found 10/31![American Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 10/30. 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 11/261:40 pm -
1 stop5h 30m
Tue 12/12:50 pm -
1 stop6h 05m
Deal found 10/30![Southwest logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 10/29![Alaska Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 10/30. 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 12/222:15 pm -
1 stop4h 58m
Sun 12/275:40 am -
1 stop6h 40m
Deal found 10/30![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/265:45 am -
2 stops10h 13m
Tue 12/16:15 am -
1 stop5h 15m
Deal found 10/30![United Airlines logo]()
$360
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 12/126:04 am -
1 stop7h 17m
Mon 12/142:05 pm -
1 stop8h 54m
Deal found 11/2![Alaska Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 11/1. 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 12/176:02 pm -
1 stop5h 03m
Thu 12/313:21 pm -
1 stop7h 18m
Deal found 11/1![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 12/244:32 pm -
1 stop8h 27m
Fri 12/256:31 am -
1 stop8h 03m
Deal found 10/31![Alaska Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/246:46 pm -
1 stop6h 03m
Wed 12/22:49 pm -
1 stop8h 03m
Deal found 10/31![American Airlines logo]()
$435
This Southwest deal was found by Cheapflights users on 11/2. 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 12/237:05 pm -
1 stop7h 05m
Fri 12/255:45 am -
2 stops14h 45m
Deal found 11/2![Southwest logo]()
$437
This Delta deal was found by Cheapflights users on 10/30. 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 12/16:02 pm -
1 stop5h 05m
Tue 12/86:59 pm -
2 stops13h 30m
Deal found 10/30![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/18:47 am -
1 stop5h 50m
Tue 12/82:40 pm -
1 stop4h 53m
Deal found 10/30![United Airlines logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 12/106:30 am -
1 stop6h 51m
Mon 12/144:10 pm -
1 stop6h 49m
Deal found 11/2![Alaska Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/188:50 am -
1 stop7h 48m
Sun 11/222:35 pm -
1 stop5h 26m
Deal found 11/3![United Airlines logo]()
$418
This Southwest deal was found by Cheapflights users on 11/2. 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 12/217:05 pm -
1 stop7h 05m
Mon 12/286:50 pm -
1 stop6h 05m
Deal found 11/2![Southwest logo]()
$465
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 1/74:22 pm -
1 stop7h 30m
Mon 1/118:00 am -
1 stop6h 26m
Deal found 10/31![Alaska Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 10/30. 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 5/15:45 pm -
1 stop5h 53m
Wed 5/51:29 pm -
1 stop6h 36m
Deal found 10/30![American Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 10/30. 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 12/222:15 pm -
1 stop4h 58m
Tue 12/295:40 am -
2 stops16h 48m
Deal found 10/30![Delta logo]()
$397
This Southwest deal was found by Cheapflights users on 11/1. 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 12/78:25 am -
2 stops8h 25m
Thu 12/107:20 am -
2 stops12h 50m
Deal found 11/1![Southwest logo]()
$477
This Delta deal was found by Cheapflights users on 10/30. 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 11/202:20 pm -
1 stop8h 39m
Sun 11/226:45 pm -
1 stop4h 55m
Deal found 10/30![Delta logo]()
$406
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/245:45 am -
1 stop5h 09m
Sun 12/272:37 pm -
1 stop5h 10m
Deal found 11/2![United Airlines logo]()
$447
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/124:36 pm -
1 stop7h 10m
Fri 1/17:39 am -
2 stops9h 29m
Deal found 11/1![American Airlines logo]()
$511
This Southwest deal was found by Cheapflights users on 11/2. 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 12/113:55 pm -
2 stops8h 05m
Wed 12/1612:40 pm -
2 stops9h 30m
Deal found 11/2![Southwest logo]()
$483
This United Airlines deal was found by Cheapflights users on 11/1. 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 1/78:50 am -
1 stop5h 38m
Mon 1/112:30 pm -
1 stop5h 05m
Deal found 11/1![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 11/1. 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 11/166:00 am -
1 stop10h 18m
Fri 11/201:55 pm -
1 stop9h 04m
Deal found 11/1![Alaska Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 11/1. 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 12/182:15 pm -
2 stops10h 37m
Wed 12/236:35 pm -
1 stop5h 11m
Deal found 11/1![Delta logo]()
$441
This American Airlines deal was found by Cheapflights users on 11/3. 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 2/612:07 pm -
1 stop8h 59m
Sat 2/136:17 am -
1 stop10h 29m
Deal found 11/3![American Airlines logo]()
$539
Last-minute flights from Missouri to IdahoDiscover last-minute flight deals from Missouri to Idaho. Data last updated November 3, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Idaho. Data last updated November 3, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:29 pm -
1 stop6h 31m
Tue 12/14:10 pm -
1 stop22h 13m
Deal found 10/30![Multiple Airlines logo]()
$334
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:29 pm -
1 stop6h 31m
Sun 11/297:55 pm -
1 stop16h 54m
Deal found 10/30![Frontier logo]()
$337
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:29 pm -
1 stop6h 31m
Sun 11/297:55 pm -
1 stop16h 54m
Deal found 11/2![Frontier logo]()
$358
This Southwest deal was found by Cheapflights users on 10/30. 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 11/261:40 pm -
1 stop5h 30m
Tue 12/12:50 pm -
1 stop6h 05m
Deal found 10/30![Southwest logo]()
$355
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/265:45 am -
2 stops10h 13m
Tue 12/16:15 am -
1 stop5h 15m
Deal found 10/30![United Airlines logo]()
$360
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/269:00 am -
2 stops9h 00m
Wed 12/22:08 pm -
2 stops9h 28m
Deal found 11/3![American Airlines logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 12/126:04 am -
1 stop7h 17m
Mon 12/142:05 pm -
1 stop8h 54m
Deal found 11/2![Alaska Airlines logo]()
$369
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:00 am -
2 stops10h 29m
Thu 12/311:12 pm -
1 stop23h 38m
Deal found 11/1![Alaska Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/215:45 am -
1 stop5h 09m
Thu 12/242:37 pm -
1 stop5h 10m
Deal found 11/1![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 10/30. 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 12/222:15 pm -
1 stop4h 58m
Sun 12/275:40 am -
1 stop6h 40m
Deal found 10/30![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/242:25 pm -
1 stop7h 54m
Tue 12/292:37 pm -
1 stop5h 31m
Deal found 10/30![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 12/244:32 pm -
1 stop8h 13m
Mon 12/286:00 am -
1 stop8h 34m
Deal found 10/31![Alaska Airlines logo]()
$369
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 November 3, 2026.
Search for one-way flight options from Missouri to Idaho. Find affordable one-way fares based on user searches. Data last updated November 3, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:29 pm -
1 stop6h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Thu 1/78:37 pm -
2 stops23h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$167
This United Airlines deal was found by Cheapflights users on 11/1. 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 11/268:00 am -
1 stop7h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![United Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/168:32 pm -
2 stops24h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$195
This American Airlines deal was found by Cheapflights users on 11/2. 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 12/85:20 am -
1 stop8h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![American Airlines logo]()
$199
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/56:44 am -
2 stops11h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![American Airlines logo]()
$204
This Delta deal was found by Cheapflights users on 11/2. 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 12/207:46 pm -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Delta logo]()
$222
This Priceline deal was found by Cheapflights users on 11/2. 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.
Thu 11/126:00 am -
1 stop10h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Alaska Airlines logo]()
$245
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/92:28 pm -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![American Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 11/1. 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 11/182:28 pm -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![American Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 11/1. 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 11/188:30 am -
2 stops7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Southwest logo]()
$260
This American Airlines deal was found by Cheapflights users on 11/1. 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 11/252:17 pm -
1 stop9h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![American Airlines logo]()
$262
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 November 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $324 (Expedia) |
One-way from | $138 (Cheapflightsfares) |
Popular in | February |
Cheapest in | January |
Average price | $422 |
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 November 3, 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
Kansas CityIdaho Falls
MCI Kansas City - IDA Idaho Falls Fanning Field
MCIIDA
Kansas City
Thu 1/7
8:37 pm-6:58 pm
2 stops23h 21m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$167
Kansas CityIdaho Falls
MCI Kansas City - IDA Idaho Falls Fanning Field
MCIIDA
Kansas City
Wed 12/16
8:32 pm-8:11 pm
2 stops24h 39m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$195
Kansas CityIdaho Falls
MCI Kansas City - IDA Idaho Falls Fanning Field
MCIIDA
Kansas City
Thu 1/7
6:22 am-1:12 pm
1 stop7h 50m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
Kansas CityIdaho Falls
MCI Kansas City - IDA Idaho Falls Fanning Field
MCIIDA
Kansas City
Tue 12/8
5:20 am-1:11 pm
1 stop8h 51m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
Kansas CityIdaho Falls
MCI Kansas City - IDA Idaho Falls Fanning Field
MCIIDA
Kansas City
Wed 12/16
6:44 am-1:11 pm
1 stop7h 27m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
Kansas CityIdaho Falls
MCI Kansas City - IDA Idaho Falls Fanning Field
MCIIDA
Kansas City
Sat 12/5
6:44 am-5:05 pm
2 stops11h 21m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$204
Quickest round-trip
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Sun 12/20
7:46 pm-12:20 am
1 stop5h 34m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
St. LouisIdaho Falls
STL Lambert-St Louis - IDA Idaho Falls Fanning Field
STLIDA
Lambert-St Louis
Thu 11/12
6:00 am-3:18 pm
1 stop10h 18m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$245
St. LouisIdaho Falls
STL Lambert-St Louis - IDA Idaho Falls Fanning Field
STLIDA
Lambert-St Louis
Mon 11/9
2:28 pm-10:59 pm
1 stop9h 31m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$255
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Wed 11/18
8:30 am-3:10 pm
2 stops7h 40m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$260
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.
SGF-IDA
MCI-IDA
STL-IDA
COU-BOI
MCI-BOI
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
SGF-IDA
MCI-IDA
STL-IDA
COU-BOI
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 $359). Flying from Missouri to Idaho in February is currently the most expensive (average of $563). 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 $393 and $422 in December.The cheapest round-trip price found within the last 5 days was $369 on Alaska Airlines (Dec 12-Dec 14).
How far ahead should I book a flight from Missouri to Idaho?
Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from Missouri to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 November 3, 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.
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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.
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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 November 3, 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 November 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$207 | Average$443 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$405 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$474 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$516 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$354 | Average$434 | FlexibilityNo cancel fee | On-time75% |