$175+ Cheap flights from Missouri to Boise (BOI)
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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOI
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Boise 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 Missouri to BoiseExplore the most affordable flight options available from Missouri to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
Explore the most affordable flight options available from Missouri to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
This Frontier deal was found by Cheapflights users on 9/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:30 pm -
1 stop16h 25m
Thu 10/82:50 pm -
1 stop20h 08m
Deal found 9/5![Frontier logo]()
$260
This CheapOair deal was found by Cheapflights users on 9/6. 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 9/2412:27 pm -
1 stop26h 28m
Sun 9/272:50 pm -
1 stop19h 27m
Deal found 9/6![Frontier logo]()
$328
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:17 pm -
1 stop26h 38m
Sun 9/272:50 pm -
1 stop19h 27m
Deal found 9/3![Frontier logo]()
$333
This Delta deal was found by Cheapflights users on 9/5. 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 10/162:22 pm -
2 stops10h 37m
Tue 10/206:45 am -
2 stops9h 59m
Deal found 9/5![Delta logo]()
$338
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 11/196:46 pm -
1 stop6h 03m
Wed 11/251:24 pm -
1 stop8h 17m
Deal found 9/2![American Airlines logo]()
$339
This CheapOair deal was found by Cheapflights users on 9/5. 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 9/2012:27 pm -
1 stop26h 28m
Thu 9/242:50 pm -
1 stop19h 27m
Deal found 9/5![Frontier logo]()
$340
This Expedia deal was found by Cheapflights users on 9/5. 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.
Wed 10/146:17 am -
1 stop7h 18m
Sat 10/172:06 pm -
1 stop8h 53m
Deal found 9/5![Alaska Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 12/910:40 am -
2 stops9h 44m
Mon 12/141:24 pm -
1 stop8h 16m
Deal found 9/2![American Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 9/5. 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 10/217:00 am -
1 stop9h 20m
Sat 10/2412:08 pm -
2 stops8h 04m
Deal found 9/5![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:00 am -
1 stop6h 28m
Tue 10/205:30 pm -
1 stop5h 14m
Deal found 9/3![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:00 am -
2 stops7h 58m
Wed 10/216:25 am -
1 stop5h 17m
Deal found 9/3![United Airlines logo]()
$360
This CheapOair deal was found by Cheapflights users on 9/6. 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 9/2712:27 pm -
1 stop26h 28m
Sun 10/42:50 pm -
1 stop19h 27m
Deal found 9/6![Frontier logo]()
$363
Best flights from Missouri to BoiseDiscover carefully curated flight deals from Missouri to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from Missouri to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This Delta deal was found by Cheapflights users on 9/5. 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 10/217:00 am -
1 stop9h 20m
Sat 10/2412:08 pm -
2 stops8h 04m
Deal found 9/5![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:00 am -
1 stop6h 28m
Tue 10/205:30 pm -
1 stop5h 14m
Deal found 9/3![United Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 pm -
1 stop7h 05m
Sat 10/174:55 pm -
1 stop5h 30m
Deal found 9/3![Southwest logo]()
$355
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:17 pm -
1 stop26h 38m
Sun 9/202:50 pm -
1 stop19h 27m
Deal found 9/1![Frontier logo]()
$370
This American Airlines deal was found by Cheapflights users on 9/1. 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 9/308:00 am -
1 stop6h 22m
Wed 10/72:02 pm -
2 stops8h 40m
Deal found 9/1![American Airlines logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:14 pm -
1 stop6h 40m
Mon 10/268:22 pm -
1 stop26h 37m
Deal found 9/5![Alaska Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:17 pm -
1 stop16h 23m
Thu 10/82:50 pm -
1 stop19h 14m
Deal found 9/3![Multiple Airlines logo]()
$473
This Delta deal was found by Cheapflights users on 9/2. 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.
Thu 11/267:00 am -
1 stop4h 42m
Wed 12/211:34 am -
1 stop4h 35m
Deal found 9/2![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 9/2. 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 10/267:40 pm -
1 stop7h 05m
Wed 10/281:25 pm -
2 stops9h 15m
Deal found 9/2![Southwest logo]()
$360
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Wed 11/255:20 pm -
1 stop5h 12m
Fri 11/275:44 pm -
1 stop5h 08m
Deal found 9/1![United Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 11/410:21 am -
2 stops10h 03m
Fri 11/62:03 pm -
2 stops8h 30m
Deal found 9/2![American Airlines logo]()
$406
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:20 am -
1 stop7h 55m
Mon 10/2612:45 pm -
2 stops9h 45m
Deal found 9/3![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 9/1. 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 10/233:25 pm -
2 stops9h 34m
Fri 10/305:30 am -
2 stops10h 17m
Deal found 9/1![Delta logo]()
$380
This Southwest deal was found by Cheapflights users on 9/2. 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.
Tue 10/64:55 pm -
1 stop8h 00m
Tue 10/131:25 pm -
2 stops9h 30m
Deal found 9/2![Southwest logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/199:00 am -
1 stop5h 35m
Wed 9/235:40 pm -
1 stop5h 02m
Deal found 9/4![United Airlines logo]()
$425
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/6![American Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 9/5. 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 10/147:45 am -
1 stop5h 31m
Mon 10/197:13 pm -
2 stops12h 40m
Deal found 9/5![Delta logo]()
$420
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:10 pm -
2 stops9h 10m
Mon 10/2612:45 pm -
2 stops9h 45m
Deal found 9/3![Southwest logo]()
$403
This Delta deal was found by Cheapflights users on 9/4. 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 10/212:22 pm -
2 stops8h 46m
Thu 10/226:49 pm -
1 stop4h 55m
Deal found 9/4![Delta logo]()
$427
This Southwest deal was found by Cheapflights users on 9/4. 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 10/216:30 am -
1 stop5h 15m
Thu 10/224:45 pm -
1 stop5h 40m
Deal found 9/4![Southwest logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 1/65:00 pm -
1 stop5h 35m
Sun 1/102:45 pm -
1 stop4h 49m
Deal found 9/2![United Airlines logo]()
$543
This Southwest deal was found by Cheapflights users on 9/2. 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 11/44:50 pm -
2 stops7h 20m
Fri 11/612:30 pm -
2 stops7h 50m
Deal found 9/2![Southwest logo]()
$431
Last-minute flights from Missouri to BoiseDiscover last-minute flight deals from Missouri to Boise. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Boise. Data last updated September 6, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:17 pm -
1 stop26h 38m
Sun 9/272:50 pm -
1 stop19h 27m
Deal found 9/3![Frontier logo]()
$333
This CheapOair deal was found by Cheapflights users on 9/5. 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 9/2012:27 pm -
1 stop26h 28m
Thu 9/242:50 pm -
1 stop19h 27m
Deal found 9/5![Frontier logo]()
$340
This American Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 9/221:03 pm -
2 stops10h 00m
Tue 9/291:52 pm -
2 stops9h 31m
Deal found 9/1![American Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 9/245:43 am -
1 stop8h 17m
Tue 9/293:21 pm -
1 stop8h 06m
Deal found 9/2![American Airlines logo]()
$369
This Frontier deal was found by Cheapflights users on 9/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:30 pm -
1 stop16h 25m
Thu 10/82:50 pm -
1 stop20h 08m
Deal found 9/5![Frontier logo]()
$260
This American Airlines deal was found by Cheapflights users on 9/3. 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 10/125:25 am -
1 stop6h 59m
Sat 10/172:02 pm -
2 stops8h 21m
Deal found 9/3![American Airlines logo]()
$363
This Expedia deal was found by Cheapflights users on 9/5. 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.
Wed 10/146:17 am -
1 stop7h 18m
Sat 10/172:06 pm -
1 stop8h 53m
Deal found 9/5![Alaska Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 9/5. 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 10/162:22 pm -
2 stops10h 37m
Tue 10/206:45 am -
2 stops9h 59m
Deal found 9/5![Delta logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:00 am -
1 stop6h 28m
Tue 10/205:30 pm -
1 stop5h 14m
Deal found 9/3![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:00 am -
2 stops7h 58m
Wed 10/216:25 am -
1 stop5h 17m
Deal found 9/3![United Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 9/5. 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 10/217:00 am -
1 stop9h 20m
Sat 10/2412:08 pm -
2 stops8h 04m
Deal found 9/5![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 9/1. 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 10/236:00 am -
1 stop8h 34m
Fri 10/301:40 pm -
1 stop7h 39m
Deal found 9/1![Delta logo]()
$339
One-way flights from Missouri to BoiseSearch for one-way flight options from Missouri to Boise. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from Missouri to Boise. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/214:19 pm -
2 stops22h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$175
This Delta deal was found by Cheapflights users on 9/1. 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 10/155:59 pm -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Delta logo]()
$178
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/16:00 am -
1 stop6h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$185
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 10/2012:47 pm -
2 stops11h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$190
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 10/196:14 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Alaska Airlines logo]()
$193
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:17 pm -
1 stop26h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$196
This Delta deal was found by Cheapflights users on 9/5. 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 10/212:22 pm -
2 stops8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/112:05 pm -
2 stops8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$198
This Delta deal was found by Cheapflights users on 9/4. 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 11/132:20 pm -
2 stops9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$202
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 10/215:40 am -
2 stops8h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$206
This Southwest deal was found by Cheapflights users on 9/4. 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 10/216:30 am -
1 stop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$209
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/134:39 pm -
1 stop5h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$221
Find flight deals from Missouri to Boise
Keep the following information in mind while searching for Missouri to Boise flight deals. Data was last updated September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $260 (Frontier) |
One-way from | $175 (Kiwi.com) |
Popular in | February |
Cheapest in | January |
Average price | $482 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Boise 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 6, 2026.
Use the filters below to find and compare flights from Missouri to Boise 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 10/21
4:19 pm-1:55 pm
2 stops22h 36m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Sat 11/7
1:34 pm-6:03 pm
1 stop5h 29m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Sat 11/7
6:55 am-2:10 pm
2 stops8h 15m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$183
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Mon 11/16
6:00 am-11:25 am
1 stop6h 25m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Thu 10/1
6:00 am-11:28 am
1 stop6h 28m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Tue 10/20
4:55 pm-11:55 pm
1 stop8h 00m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Mon 10/19
6:14 pm-11:54 pm
1 stop6h 40m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$193
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Wed 10/21
2:22 pm-10:08 pm
2 stops8h 46m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$197
Kansas CityBoise
MCI Kansas City - BOI Boise Air Term. Gowen Fld
MCIBOI
Kansas City
Mon 1/11
2:05 pm-9:30 pm
2 stops8h 25m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$198
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Fri 11/13
2:20 pm-10:26 pm
2 stops9h 06m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$202
Showing 1-10 of 48 resultsSorted by cheapest first
Best time to book a flight from Missouri to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Missouri with our price prediction graph.
STL-BOI
MCI-BOI
SGF-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 Boise
USMO-BOI
STL-BOI
MCI-BOI
SGF-BOI
What is the cheapest month to book a flight from Missouri to Boise?
Currently, January is the cheapest month in which you can book a flight from Missouri to Boise (average of $385). Flying from Missouri to Boise 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 Boise?
Airfare is below average for this route at the moment.
Missouri to Boise flights typically cost between $430 and $551 in September.The cheapest round-trip price found within the last 5 days was $328 on Frontier (Sep 24-Sep 27).
Related info for your journey
Find useful and relevant information for your journey from Missouri to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsOntario
Meridian
Nampa
Caldwell
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Alternative routes for Missouri to Boise
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Other flights to Boise
Explore flights to Boise departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 6, 2026.
Complete your trip
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Missouri and Boise flights
Browse other Missouri and Boise flight options. Last updated on September 6, 2026.
Popular flight searches
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Missouri to Boise flights
Consider these flights traveling from Missouri to Boise.
Top 5 airlines flying from Missouri to Boise
Discover the top 5 airlines that operate flights from Missouri to Boise. 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 6, 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$447 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$336 | Average$512 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$348 | Average$422 | FlexibilityNo cancel fee | On-time75% |