$130+ Cheap flights from Idaho to Montana
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BZN
Jun 28 — Jul 51
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Montana with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Idaho to MontanaExplore the most affordable flight options available from Idaho to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.
Explore the most affordable flight options available from Idaho to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.
This Orbitz deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:57 pm
BOI
- BZN
Nonstop1h 06m
Alaska Airlines
Mon 11/22:54 pm
BZN
- BOI
Nonstop1h 14m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:15 pm
BOI
- BZN
1 stop4h 40m
Delta
Mon 11/21:05 pm
BZN
- BOI
1 stop3h 44m
Delta
Deal found 5/26![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/226:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Wed 7/85:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/26![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/236:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Wed 7/85:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/26![Delta logo]()
$258
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 9/248:25 am
BOI
- BZN
1 stop3h 38m
Delta
Sun 9/276:00 am
BZN
- BOI
1 stop4h 01m
Delta
Deal found 5/26![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/131:11 pm
BOI
- BZN
1 stop4h 09m
Delta
Mon 6/155:15 am
BZN
- BOI
1 stop4h 17m
Delta
Deal found 5/26![Delta logo]()
$272
This Delta deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 8/76:39 pm
BOI
- BZN
1 stop5h 25m
Delta
Sun 8/96:00 am
BZN
- BOI
1 stop3h 48m
Delta
Deal found 5/27![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 7/71:05 pm
BOI
- BZN
2 stops9h 40m
Southwest
Wed 7/87:00 pm
BZN
- BOI
1 stop5h 30m
Southwest
Deal found 5/27![Southwest logo]()
$282
This Southwest deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 7/137:40 pm
BOI
- BZN
1 stop5h 35m
Southwest
Wed 7/157:00 pm
BZN
- BOI
1 stop5h 30m
Southwest
Deal found 5/28![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/226:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Mon 7/65:15 am
BZN
- BOI
1 stop4h 17m
Delta
Deal found 5/26![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/91:11 pm
BOI
- BTM
1 stop3h 46m
Delta
Sat 6/136:10 pm
BTM
- BOI
1 stop4h 35m
Delta
Deal found 5/25![Delta logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 8/317:03 am
GEG
- BZN
1 stop12h 42m
Alaska Airlines
Tue 9/19:20 am
BZN
- GEG
1 stop14h 29m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$323
Best flights from Idaho to MontanaDiscover carefully curated flight deals from Idaho to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 29, 2026.
Discover carefully curated flight deals from Idaho to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 29, 2026.
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/166:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Sat 7/186:00 am
BZN
- BOI
1 stop3h 29m
Delta
Deal found 5/25![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 7/137:40 pm
BOI
- BZN
1 stop5h 35m
Southwest
Wed 7/157:00 pm
BZN
- BOI
1 stop5h 30m
Southwest
Deal found 5/27![Southwest logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:57 pm
BOI
- BZN
Nonstop1h 06m
Alaska Airlines
Sun 10/115:43 pm
BZN
- BOI
Nonstop1h 12m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 10/315:22 pm
BOI
- BTM
1 stop5h 05m
United Airlines
Wed 11/410:00 am
BTM
- BOI
1 stop7h 55m
United Airlines
Deal found 5/27![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 7/236:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Tue 7/285:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/24![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 7/96:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Sun 7/125:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/28![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/317:03 am
GEG
- BZN
1 stop12h 42m
Alaska Airlines
Tue 9/19:20 am
BZN
- GEG
1 stop14h 29m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 7/233:25 pm
BOI
- BZN
2 stops9h 50m
Southwest
Tue 7/287:00 pm
BZN
- BOI
1 stop5h 30m
Southwest
Deal found 5/24![Southwest logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 9/193:34 pm
GEG
- BZN
1 stop6h 25m
Alaska Airlines
Wed 9/237:03 am
BZN
- GEG
1 stop6h 36m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 7/76:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Wed 7/85:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/27![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/91:30 pm
GEG
- BZN
2 stops10h 45m
Southwest
Tue 7/147:00 pm
BZN
- GEG
1 stop5h 50m
Southwest
Deal found 5/25![Southwest logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 11/148:54 am
GEG
- GTF
1 stop6h 23m
Alaska Airlines
Wed 11/184:57 pm
GTF
- GEG
1 stop5h 34m
Alaska Airlines
Deal found 5/28![Alaska Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1311:59 am
BOI
- BTM
1 stop4h 58m
Delta
Wed 6/176:10 pm
BTM
- BOI
1 stop5h 59m
Delta
Deal found 5/28![Delta logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 10/244:38 pm
GEG
- MSO
1 stop4h 21m
Alaska Airlines
Wed 10/287:00 am
MSO
- GEG
1 stop7h 07m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/91:11 pm
BOI
- BTM
1 stop3h 46m
Delta
Sat 6/136:10 pm
BTM
- BOI
1 stop4h 35m
Delta
Deal found 5/25![Delta logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 11/146:33 am
BOI
- FCA
1 stop5h 47m
Alaska Airlines
Wed 11/186:34 pm
FCA
- BOI
1 stop5h 17m
Alaska Airlines
Deal found 5/28![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 8/294:20 pm
BOI
- BZN
1 stop6h 39m
Alaska Airlines
Wed 9/27:03 am
BZN
- BOI
1 stop7h 19m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/1011:59 am
BOI
- BTM
1 stop4h 58m
Delta
Sun 6/146:10 pm
BTM
- BOI
1 stop5h 59m
Delta
Deal found 5/26![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 6/1111:50 am
GEG
- BZN
1 stop5h 45m
Southwest
Mon 6/157:15 pm
BZN
- GEG
1 stop6h 15m
Southwest
Deal found 5/27![Southwest logo]()
$479
This Alaska Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 7/206:23 am
BOI
- BZN
1 stop7h 46m
Alaska Airlines
Wed 7/226:03 am
BZN
- BOI
1 stop6h 44m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 10/176:01 pm
BOI
- MSO
1 stop3h 58m
Alaska Airlines
Wed 10/217:00 am
MSO
- BOI
1 stop5h 35m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/105:46 pm
BOI
- BTM
1 stop4h 44m
United Airlines
Sun 6/1410:15 am
BTM
- BOI
2 stops26h 53m
United Airlines
Deal found 5/26![United Airlines logo]()
$662
This Delta deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:10 pm
GEG
- BIL
1 stop4h 41m
Delta
Tue 6/305:20 am
BIL
- GEG
1 stop4h 47m
Delta
Deal found 5/24![Delta logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 11/78:14 am
GEG
- BIL
1 stop5h 38m
Alaska Airlines
Wed 11/115:12 pm
BIL
- GEG
1 stop6h 44m
Alaska Airlines
Deal found 5/28![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 6/135:46 pm
BOI
- BTM
1 stop4h 44m
United Airlines
Wed 6/1710:15 am
BTM
- BOI
2 stops13h 40m
United Airlines
Deal found 5/28![United Airlines logo]()
$662
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 8/276:00 am
BOI
- FCA
1 stop5h 09m
Delta
Tue 9/15:15 am
FCA
- BOI
1 stop4h 33m
Delta
Deal found 5/28![Delta logo]()
$382
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/95:46 pm
BOI
- BTM
1 stop4h 44m
United Airlines
Sat 6/1310:15 am
BTM
- BOI
2 stops26h 53m
United Airlines
Deal found 5/25![United Airlines logo]()
$662
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 8/76:39 pm
BOI
- BIL
1 stop3h 46m
Delta
Sun 8/95:20 am
BIL
- BOI
1 stop4h 28m
Delta
Deal found 5/26![Delta logo]()
$395
This Travelocity deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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.
Tue 7/74:27 pm
BOI
- BIL
1 stop7h 24m
Alaska Airlines
Wed 7/86:00 am
BIL
- BOI
1 stop6h 47m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 6/257:05 pm
BOI
- BTM
2 stops27h 25m
United Airlines
Thu 7/210:15 am
BTM
- BOI
1 stop7h 41m
United Airlines
Deal found 5/28![United Airlines logo]()
$676
Last-minute flights from Idaho to MontanaDiscover last-minute flight deals from Idaho to Montana. Data last updated May 29, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Montana. Data last updated May 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/96:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Sat 6/136:00 am
BZN
- BOI
1 stop3h 32m
Delta
Deal found 5/25![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/91:11 pm
BOI
- BTM
1 stop3h 46m
Delta
Sat 6/136:10 pm
BTM
- BOI
1 stop4h 35m
Delta
Deal found 5/25![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/131:11 pm
BOI
- BZN
1 stop4h 09m
Delta
Mon 6/155:15 am
BZN
- BOI
1 stop4h 17m
Delta
Deal found 5/26![Delta logo]()
$272
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/157:40 pm
BOI
- BZN
1 stop5h 30m
Southwest
Wed 6/177:10 pm
BZN
- BOI
1 stop5h 15m
Southwest
Deal found 5/25![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/226:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Sun 7/125:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/26![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/226:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Mon 7/65:15 am
BZN
- BOI
1 stop4h 17m
Delta
Deal found 5/26![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/236:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Wed 7/85:15 am
BZN
- BOI
1 stop4h 14m
Delta
Deal found 5/26![Delta logo]()
$258
This Delta deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” 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 6/236:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Fri 6/265:15 am
BZN
- BOI
1 stop4h 17m
Delta
Deal found 5/27![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/236:42 pm
BOI
- BZN
1 stop5h 41m
Delta
Mon 7/65:15 am
BZN
- BOI
1 stop4h 17m
Delta
Deal found 5/26![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/234:20 pm
BOI
- BZN
2 stops8h 25m
Southwest
Thu 6/257:15 pm
BZN
- BOI
1 stop5h 55m
Southwest
Deal found 5/25![Southwest logo]()
$321
This Southwest deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/244:20 pm
BOI
- BZN
2 stops8h 25m
Southwest
Thu 7/97:15 pm
BZN
- BOI
1 stop6h 00m
Southwest
Deal found 5/26![Southwest logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 5/29. 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 6/246:13 pm
BOI
- BZN
1 stop5h 06m
Alaska Airlines
Thu 7/93:05 pm
BZN
- BOI
1 stop7h 19m
Alaska Airlines
Deal found 5/29![Alaska Airlines logo]()
$337
One-way flights from Idaho to MontanaSearch for one-way flight options from Idaho to Montana. Find affordable one-way fares based on user searches. Data last updated May 29, 2026.
Search for one-way flight options from Idaho to Montana. Find affordable one-way fares based on user searches. Data last updated May 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 9/1010:09 am
GEG
- BIL
1 stop29h 12m
Allegiant Air
Deal found 5/25![Allegiant Air logo]()
$130
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/71:05 pm
BOI
- BZN
2 stops9h 40m
Southwest
Deal found 5/25![Southwest logo]()
$144
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 7/311:59 am
BOI
- BZN
1 stop3h 16m
Delta
Deal found 5/26![Delta logo]()
$149
This Southwest deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 7/34:25 pm
BOI
- BZN
2 stops8h 45m
Southwest
Deal found 5/26![Southwest logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 9/310:09 am
GEG
- BZN
1 stop6h 45m
Allegiant Air
Deal found 5/26![Allegiant Air logo]()
$159
This Expedia deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 6/234:27 pm
BOI
- BZN
1 stop6h 52m
Alaska Airlines
Deal found 5/28![Alaska Airlines logo]()
$169
This Southwest deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/153:25 pm
BOI
- BZN
2 stops9h 45m
Southwest
Deal found 5/26![Southwest logo]()
$173
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 9/257:05 am
GEG
- BZN
1 stop6h 31m
Delta
Deal found 5/25![Delta logo]()
$173
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 7/86:00 am
BOI
- BIL
1 stop5h 09m
Delta
Deal found 5/28![Delta logo]()
$178
This Delta deal was found by Cheapflights users on 5/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 pm
GEG
- BIL
1 stop4h 25m
Delta
Deal found 5/29![Delta logo]()
$178
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” 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 7/111:59 am
BOI
- BZN
1 stop3h 16m
Delta
Deal found 5/28![Delta logo]()
$180
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/146:00 am
BOI
- BZN
1 stop5h 18m
Delta
Deal found 5/26![Delta logo]()
$184
Find flight deals from Idaho to Montana
Keep the following information in mind while searching for Idaho to Montana flight deals. Data was last updated May 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $237 (Delta) |
One-way from | $130 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $246 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Montana 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 2,558,603 searches. Data last updated May 29, 2026.
Use the filters below to find and compare flights from Idaho to Montana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseBozeman
BOI - BZN
BOIBZN
Boise Air Term. Gowen Fld
Thu 7/16
6:42 pm-12:23 am
1 stop5h 41m
Bozeman Gallatin Field
Sat 7/18
6:00 am-9:29 am
1 stop3h 29m
$237
BoiseBozeman
BOI - BZN
BOIBZN
Boise Air Term. Gowen Fld
Thu 7/23
6:42 pm-12:23 am
1 stop5h 41m
Bozeman Gallatin Field
Tue 7/28
5:15 am-9:29 am
1 stop4h 14m
$237
BoiseBozeman
BOI - BZN
BOIBZN
Boise Air Term. Gowen Fld
Thu 7/9
6:42 pm-12:23 am
1 stop5h 41m
Bozeman Gallatin Field
Sun 7/12
5:15 am-9:29 am
1 stop4h 14m
$237
BoiseBozeman
BOI - BZN
BOIBZN
Boise Air Term. Gowen Fld
Mon 7/13
7:40 pm-1:15 am
1 stop5h 35m
Bozeman Gallatin Field
Wed 7/15
7:00 pm-12:30 am
1 stop5h 30m
$287
Quickest round-trip
BoiseBozeman
BOI - BZN
BOIBZN
Boise Air Term. Gowen Fld
Thu 10/8
3:57 pm-5:03 pm
Nonstop1h 06m
Bozeman Gallatin Field
Sun 10/11
5:43 pm-6:55 pm
Nonstop1h 12m
$292
BoiseBozeman
BOI - BZN
BOIBZN
Boise Air Term. Gowen Fld
Tue 7/7
6:42 pm-12:23 am
1 stop5h 41m
Bozeman Gallatin Field
Wed 7/8
5:15 am-9:29 am
1 stop4h 14m
$297
BoiseButte
BOI - BTM
BOIBTM
Boise Air Term. Gowen Fld
Sat 6/13
11:59 am-4:57 pm
1 stop4h 58m
Butte Silver Bow Co
Wed 6/17
6:10 pm-12:09 am
1 stop5h 59m
$318
BoiseButte
BOI - BTM
BOIBTM
Boise Air Term. Gowen Fld
Tue 6/9
1:11 pm-4:57 pm
1 stop3h 46m
Butte Silver Bow Co
Sat 6/13
6:10 pm-10:45 pm
1 stop4h 35m
$318
SpokaneBozeman
GEG - BZN
GEGBZN
Spokane
Mon 8/31
7:03 am-8:45 pm
1 stop12h 42m
Bozeman Gallatin Field
Tue 9/1
9:20 am-10:49 pm
1 stop14h 29m
$323
SpokaneBozeman
GEG - BZN
GEGBZN
Spokane
Sat 9/19
3:34 pm-10:59 pm
1 stop6h 25m
Bozeman Gallatin Field
Wed 9/23
7:03 am-12:39 pm
1 stop6h 36m
$325
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Montana
Have a flexible travel schedule? Discover the best time to fly to Montana from Idaho with our price prediction graph.
BOI-BZN
BOI-BTM
GEG-BIL
GEG-GTF
BOI-FCA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Idaho to Montana
USID-USMT
BOI-BZN
BOI-BTM
GEG-BIL
GEG-GTF
What is the cheapest month to book a flight from Idaho to Montana?
Currently, August is the cheapest month in which you can book a flight from Idaho to Montana (average of $78). Flying from Idaho to Montana in May is currently the most expensive (average of $236). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Idaho to Montana?
Reviews of airlines servicing Montana
Get insights into the airlines that provide service to Montana. 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 Montana. Reviews last updated May 29, 2026.
See what other customers who have flown with Alaska Airlines and Delta from Idaho to Montana have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Idaho to Montana. 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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Top destinations
Alternative routes for Idaho to Montana
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Montana by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Montana by cabin class
Find flights from Idaho to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Montana flights
Browse other Idaho and Montana flight options. Last updated on May 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Montana
Find the right flight back to Idaho after your stay in Montana
Idaho to Montana flights
Consider these flights traveling from Idaho to Montana.
Top 2 airlines flying from Idaho to Montana
Discover the top 2 airlines that operate flights from Idaho to Montana. 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 2,558,603 searches. Data last updated May 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$372 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$437 | FlexibilityNo cancel fee | On-time75% |