$96+ Cheap flights from Montana 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
Nov 7 — Nov 141
Round-trip
1 adult, Economy
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Cheapest flights from Montana to IdahoExplore the most affordable flight options available from Montana to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.
Explore the most affordable flight options available from Montana to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:30 pm -
1 stop7h 05m
Mon 11/93:55 pm -
1 stop6h 55m
Deal found 10/5![Southwest logo]()
$192
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:05 pm -
2 stops9h 20m
Mon 11/93:55 pm -
1 stop6h 55m
Deal found 10/5![Southwest logo]()
$198
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/54:05 pm -
1 stop6h 55m
Sun 11/83:55 pm -
1 stop6h 55m
Deal found 10/7![Southwest logo]()
$205
This Southwest deal was found by Cheapflights users on 10/3. 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 11/38:05 am -
1 stop7h 05m
Tue 11/103:45 pm -
1 stop5h 50m
Deal found 10/3![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/135:20 am -
1 stop5h 22m
Sun 11/156:45 pm -
1 stop5h 34m
Deal found 10/7![Delta logo]()
$237
This Expedia deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 12/1010:27 am -
1 stop4h 59m
Mon 12/142:05 pm -
Nonstop1h 08m
Deal found 10/7![Alaska Airlines logo]()
$240
This Travelocity deal was found by Cheapflights users on 10/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:27 am -
1 stop7h 36m
Mon 11/92:08 pm -
Nonstop1h 06m
Deal found 10/5![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/305:30 am -
1 stop5h 12m
Fri 11/611:32 am -
1 stop6h 19m
Deal found 10/7![Delta logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/302:55 pm -
Nonstop1h 12m
Fri 11/62:08 pm -
Nonstop1h 06m
Deal found 10/7![Alaska Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:10 pm -
1 stop6h 00m
Sat 11/141:19 pm -
1 stop3h 52m
Deal found 10/6![Delta logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/144:41 pm -
1 stop5h 39m
Mon 11/161:53 pm -
1 stop26h 11m
Deal found 10/8![Alaska Airlines logo]()
$359
This Expedia deal was found by Cheapflights users on 10/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:32 pm -
1 stop4h 34m
Tue 11/178:20 am -
1 stop8h 12m
Deal found 10/6![Alaska Airlines logo]()
$385
Best flights from Montana to IdahoDiscover carefully curated flight deals from Montana to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
Discover carefully curated flight deals from Montana to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:30 pm -
1 stop7h 05m
Mon 11/93:55 pm -
1 stop6h 55m
Deal found 10/5![Southwest logo]()
$192
This Delta deal was found by Cheapflights users on 10/4. 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 1/227:00 pm -
1 stop5h 04m
Sun 1/245:45 pm -
1 stop6h 25m
Deal found 10/4![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/302:55 pm -
Nonstop1h 12m
Fri 11/62:08 pm -
Nonstop1h 06m
Deal found 10/7![Alaska Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/134:00 pm -
1 stop6h 59m
Sun 11/155:00 am -
1 stop4h 45m
Deal found 10/7![United Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 10/3. 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 11/38:05 am -
1 stop7h 05m
Tue 11/103:45 pm -
1 stop5h 50m
Deal found 10/3![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/305:30 am -
1 stop5h 12m
Fri 11/611:32 am -
1 stop6h 19m
Deal found 10/7![Delta logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/302:55 pm -
Nonstop1h 12m
Tue 11/36:37 am -
1 stop16h 15m
Deal found 10/7![Alaska Airlines logo]()
$305
This Southwest deal was found by Cheapflights users on 10/4. 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.
Fri 1/223:25 pm -
1 stop7h 40m
Sun 1/246:25 am -
2 stops8h 20m
Deal found 10/4![Southwest logo]()
$283
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:10 pm -
1 stop6h 00m
Sat 11/141:19 pm -
1 stop3h 52m
Deal found 10/6![Delta logo]()
$312
This Southwest deal was found by Cheapflights users on 10/4. 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.
Fri 12/1111:05 am -
1 stop5h 00m
Sun 12/136:00 am -
2 stops9h 25m
Deal found 10/4![Southwest logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 1/3012:09 pm -
1 stop10h 13m
Wed 2/33:01 pm -
1 stop8h 50m
Deal found 10/7![Alaska Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 10/3. 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.
Tue 10/275:00 am -
1 stop4h 52m
Tue 11/35:44 pm -
1 stop4h 46m
Deal found 10/3![United Airlines logo]()
$445
This Expedia deal was found by Cheapflights users on 10/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/45:12 pm -
1 stop6h 47m
Tue 1/1211:10 am -
1 stop4h 18m
Deal found 10/4![Alaska Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/236:10 pm -
1 stop5h 49m
Tue 10/271:06 pm -
1 stop3h 54m
Deal found 10/7![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:28 am -
1 stop7h 17m
Wed 11/116:30 am -
1 stop7h 10m
Deal found 10/6![United Airlines logo]()
$459
This Priceline deal was found by Cheapflights users on 10/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:02 pm -
1 stop4h 01m
Wed 11/118:20 am -
1 stop4h 02m
Deal found 10/3![Alaska Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 10/4. 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 12/115:30 am -
1 stop5h 14m
Sun 12/131:07 pm -
1 stop4h 34m
Deal found 10/4![Delta logo]()
$425
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 2/274:55 pm -
1 stop7h 16m
Wed 3/38:02 am -
2 stops8h 11m
Deal found 10/7![Alaska Airlines logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 12/51:03 pm -
1 stop4h 00m
Wed 12/96:37 am -
1 stop16h 42m
Deal found 10/7![Alaska Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 10/5. 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.
Tue 11/37:15 am -
1 stop3h 27m
Sat 11/75:14 pm -
1 stop5h 15m
Deal found 10/5![Delta logo]()
$465
This Alaska Airlines deal was found by Cheapflights users on 10/5. 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.
Thu 12/104:50 pm -
1 stop5h 24m
Sun 12/132:07 pm -
1 stop9h 12m
Deal found 10/5![Alaska Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:10 pm -
1 stop5h 49m
Sun 10/2511:32 am -
1 stop5h 28m
Deal found 10/6![Delta logo]()
$472
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Mon 10/199:45 am -
1 stop7h 58m
Fri 10/235:30 pm -
1 stop5h 00m
Deal found 10/4![United Airlines logo]()
$632
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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.
Sat 11/74:21 pm -
1 stop5h 59m
Mon 11/94:16 pm -
1 stop5h 02m
Deal found 10/4![Alaska Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:45 am -
2 stops28h 18m
Sun 10/255:44 pm -
1 stop4h 59m
Deal found 10/6![United Airlines logo]()
$677
This Expedia deal was found by Cheapflights users on 10/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:05 pm -
2 stops9h 56m
Tue 11/38:59 pm -
1 stop14h 16m
Deal found 10/3![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 10/5. 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.
Mon 11/25:30 am -
1 stop6h 46m
Mon 11/91:19 pm -
1 stop4h 18m
Deal found 10/5![Delta logo]()
$567
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:15 am -
2 stops25h 04m
Sat 11/145:44 pm -
1 stop4h 59m
Deal found 10/6![United Airlines logo]()
$688
This Trip.com deal was found by Cheapflights users on 10/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:53 pm -
1 stop7h 06m
Fri 11/2710:52 am -
1 stop5h 24m
Deal found 10/6![Alaska Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/232:30 pm -
1 stop8h 03m
Tue 10/276:30 am -
1 stop7h 10m
Deal found 10/8![United Airlines logo]()
$695
Last-minute flights from Montana to IdahoDiscover last-minute flight deals from Montana to Idaho. Data last updated October 8, 2026 and is based on user searches.
Discover last-minute flight deals from Montana to Idaho. Data last updated October 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/305:30 am -
1 stop5h 12m
Fri 11/611:32 am -
1 stop6h 19m
Deal found 10/7![Delta logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/302:55 pm -
Nonstop1h 12m
Fri 11/62:08 pm -
Nonstop1h 06m
Deal found 10/7![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:05 pm -
2 stops9h 20m
Mon 11/93:55 pm -
1 stop6h 55m
Deal found 10/5![Southwest logo]()
$198
This Southwest deal was found by Cheapflights users on 10/3. 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 11/38:05 am -
1 stop7h 05m
Tue 11/103:45 pm -
1 stop5h 50m
Deal found 10/3![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:30 pm -
1 stop7h 05m
Mon 11/93:55 pm -
1 stop6h 55m
Deal found 10/5![Southwest logo]()
$192
This Travelocity deal was found by Cheapflights users on 10/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:27 am -
1 stop7h 36m
Mon 11/92:08 pm -
Nonstop1h 06m
Deal found 10/5![Alaska Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/54:05 pm -
1 stop6h 55m
Sun 11/83:55 pm -
1 stop6h 55m
Deal found 10/7![Southwest logo]()
$205
This Expedia deal was found by Cheapflights users on 10/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:32 pm -
1 stop4h 34m
Tue 11/178:20 am -
1 stop8h 12m
Deal found 10/6![Alaska Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/135:20 am -
1 stop5h 22m
Sun 11/156:45 pm -
1 stop5h 34m
Deal found 10/7![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/136:59 pm -
1 stop20h 25m
Sun 11/152:08 pm -
Nonstop1h 06m
Deal found 10/7![Alaska Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:10 pm -
1 stop6h 00m
Sat 11/141:19 pm -
1 stop3h 52m
Deal found 10/6![Delta logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/144:41 pm -
1 stop5h 39m
Mon 11/161:53 pm -
1 stop26h 11m
Deal found 10/8![Alaska Airlines logo]()
$359
One-way flights from Montana to IdahoSearch for one-way flight options from Montana to Idaho. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
Search for one-way flight options from Montana to Idaho. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
This Southwest deal was found by Cheapflights users on 10/4. 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.
Thu 10/296:15 pm -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$96
This Southwest deal was found by Cheapflights users on 10/4. 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.
Sat 11/72:15 pm -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$108
This Southwest deal was found by Cheapflights users on 10/4. 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.
Fri 10/306:15 pm -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$120
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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.
Thu 11/52:54 pm -
Nonstop1h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Alaska Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 10/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:42 am -
1 stop28h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Allegiant Air logo]()
$144
This Delta deal was found by Cheapflights users on 10/4. 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.
Tue 11/35:30 am -
1 stop5h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Delta logo]()
$149
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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 10/262:55 pm -
Nonstop1h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Alaska Airlines logo]()
$164
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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.
Sat 10/3112:49 pm -
2 stops9h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 10/4. 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.
Tue 10/2711:25 am -
2 stops10h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 10/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:22 am -
1 stop27h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Allegiant Air logo]()
$172
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/2710:20 am -
1 stop5h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Alaska Airlines logo]()
$174
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$179
Find flight deals from Montana to Idaho
Keep the following information in mind while searching for Montana to Idaho flight deals. Data was last updated October 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $192 (Southwest) |
One-way from | $96 (Southwest) |
Popular in | June |
Cheapest in | March |
Average price | $381 |
Good round-trip deal | $392 or less |
Good one-way deal | $273 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Montana 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 October 8, 2026.
Use the filters below to find and compare flights from Montana to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Thu 10/29
4:15 pm-12:10 am
2 stops7h 55m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$102
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Fri 10/30
6:15 pm-1:05 am
1 stop6h 50m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$120
KalispellIdaho Falls
FCA Kalispell Glacier Park - IDA Idaho Falls Fanning Field
FCAIDA
Kalispell Glacier Park
Thu 11/19
10:42 am-3:34 pm
1 stop28h 52m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$144
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Sun 12/13
6:32 pm-12:26 am
1 stop5h 54m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Fri 11/27
5:20 am-10:42 am
1 stop5h 22m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Tue 10/27
2:45 pm-10:20 pm
1 stop7h 35m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$164
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Sat 10/31
12:49 pm-10:01 pm
2 stops9h 12m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$167
Great FallsBoise
GTF Great Falls - BOI Boise Air Term. Gowen Fld
GTFBOI
Great Falls
Sun 11/1
9:22 am-12:40 pm
1 stop27h 18m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$172
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Wed 10/21
6:30 am-12:15 pm
1 stop5h 45m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
BozemanBoise
BZN Bozeman Gallatin Field - BOI Boise Air Term. Gowen Fld
BZNBOI
Bozeman Gallatin Field
Mon 10/19
6:15 pm-1:05 am
1 stop6h 50m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Montana to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Montana with our price prediction graph.
BZN-BOI
BIL-BOI
BTM-BOI
GTF-BOI
HLN-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 Montana to Idaho
USMT-USID
BZN-BOI
BIL-BOI
BTM-BOI
GTF-BOI
What is the cheapest month to book a flight from Montana to Idaho?
Currently, January is the cheapest month in which you can book a flight from Montana to Idaho (average of $216). Flying from Montana to Idaho in June is currently the most expensive (average of $496). 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 Montana to Idaho?
Airfare is below average for this route at the moment.
Montana to Idaho flights typically cost between $297 and $412 in November.The cheapest round-trip price found within the last 5 days was $192 on Southwest (Nov 4-Nov 9).
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 October 8, 2026.
Read through reviews of airlines operating flights from Montana to Idaho, such as Alaska Airlines,Southwest, andDelta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Related info for your journey
Find useful and relevant information for your journey from Montana 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 Montana 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 Montana to Idaho by cabin class
Find flights from Montana to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Montana and Idaho flights
Browse other Montana and Idaho flight options. Last updated on October 8, 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 Montana after your stay in Idaho
Montana to Idaho flights
Consider these flights traveling from Montana to Idaho.
Top 4 airlines flying from Montana to Idaho
Discover the top 4 airlines that operate flights from Montana 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 October 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$389 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$132 | Average$405 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$394 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$286 | Average$360 | FlexibilityNo cancel fee | On-time63% |