$66+ Cheap flights from Colorado 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to Idaho with Cheapflights
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Cheapest flights from Colorado to IdahoExplore the most affordable flight options available from Colorado to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Colorado to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:25 pm -
Nonstop2h 10m
Mon 12/73:30 pm -
Nonstop1h 40m
Deal found 10/30![Southwest logo]()
$131
This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:25 am -
1 stop12h 36m
Mon 12/76:15 pm -
1 stop15h 01m
Deal found 10/29![Frontier logo]()
$132
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/264:05 pm -
Nonstop2h 05m
Fri 12/41:05 pm -
Nonstop1h 45m
Deal found 10/29![Southwest logo]()
$137
This Trip.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:40 am -
1 stop5h 29m
Mon 12/74:10 pm -
1 stop7h 05m
Deal found 10/30![Alaska Airlines logo]()
$138
This Southwest deal was found by Cheapflights users on 10/27. 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.
Fri 12/41:10 pm -
Nonstop2h 00m
Mon 12/77:55 am -
Nonstop1h 55m
Deal found 10/27![Southwest logo]()
$144
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:40 am -
1 stop5h 29m
Thu 12/34:10 pm -
1 stop7h 05m
Deal found 10/27![Alaska Airlines logo]()
$145
This Southwest deal was found by Cheapflights users on 10/28. 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.
Tue 12/89:00 am -
Nonstop2h 00m
Tue 12/156:20 am -
2 stops7h 45m
Deal found 10/28![Southwest logo]()
$146
This Delta deal was found by Cheapflights users on 10/28. 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.
Mon 12/75:25 am -
1 stop4h 09m
Mon 12/141:07 pm -
1 stop4h 12m
Deal found 10/28![Delta logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:20 am -
1 stop8h 55m
Mon 12/147:58 pm -
2 stops19h 55m
Deal found 10/28![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:30 am -
1 stop6h 00m
Mon 11/167:47 pm -
1 stop14h 01m
Deal found 10/28![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:50 pm -
1 stop12h 56m
Mon 11/303:32 pm -
2 stops24h 15m
Deal found 10/28![Multiple Airlines logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:42 pm -
1 stop17h 18m
Mon 11/161:45 pm -
1 stop20h 03m
Deal found 10/28![Multiple Airlines logo]()
$274
Best flights from Colorado to IdahoDiscover carefully curated flight deals from Colorado to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Colorado to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/28. 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.
Wed 12/29:00 am -
Nonstop2h 00m
Thu 12/32:50 pm -
1 stop7h 40m
Deal found 10/28![Southwest logo]()
$141
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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.
Thu 12/3112:15 pm -
1 stop7h 51m
Sat 1/95:58 pm -
1 stop5h 19m
Deal found 10/25![Alaska Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:42 pm -
1 stop17h 18m
Mon 11/161:45 pm -
1 stop20h 03m
Deal found 10/28![Multiple Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:38 am -
Nonstop2h 07m
Fri 12/42:48 pm -
Nonstop1h 57m
Deal found 10/29![United Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/153:20 pm -
2 stops8h 10m
Mon 1/184:15 pm -
Nonstop1h 50m
Deal found 10/30![Southwest logo]()
$152
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:29 pm -
1 stop5h 44m
Sun 12/271:09 pm -
1 stop6h 19m
Deal found 10/29![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/28. 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.
Sat 1/99:10 am -
Nonstop2h 10m
Sat 1/162:05 pm -
Nonstop1h 50m
Deal found 10/28![Southwest logo]()
$157
This American Airlines deal was found by Cheapflights users on 10/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
1 stop7h 28m
Sat 12/52:08 pm -
1 stop4h 53m
Deal found 10/25![American Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 10/26. 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 2/128:30 am -
Nonstop2h 10m
Sun 2/142:50 pm -
Nonstop1h 55m
Deal found 10/26![Southwest logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Sat 11/148:20 am -
2 stops11h 42m
Mon 11/168:30 am -
1 stop10h 49m
Deal found 10/26![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:33 pm -
1 stop4h 30m
Sat 1/95:25 am -
1 stop4h 19m
Deal found 10/29![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/237:15 pm -
Nonstop1h 54m
Mon 11/305:30 pm -
Nonstop1h 50m
Deal found 10/25![United Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Mon 11/2310:25 am -
2 stops11h 10m
Mon 11/303:32 pm -
1 stop17h 43m
Deal found 10/25![Multiple Airlines logo]()
$345
This Delta deal was found by Cheapflights users on 10/26. 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 12/216:33 pm -
1 stop4h 30m
Sun 1/35:40 am -
1 stop5h 54m
Deal found 10/26![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:38 am -
1 stop5h 01m
Wed 12/92:48 pm -
1 stop6h 34m
Deal found 10/29![United Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2612:29 pm -
1 stop5h 44m
Wed 12/305:40 am -
1 stop5h 54m
Deal found 10/29![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 1/211:45 pm -
1 stop24h 26m
Tue 1/2611:23 am -
2 stops10h 52m
Deal found 10/28![Alaska Airlines logo]()
$408
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:00 am -
1 stop7h 23m
Tue 12/16:12 pm -
1 stop6h 14m
Deal found 10/28![American Airlines logo]()
$460
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:00 am -
1 stop6h 28m
Wed 11/185:30 pm -
1 stop6h 29m
Deal found 10/29![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/136:35 am -
2 stops7h 20m
Sat 2/2012:05 pm -
2 stops8h 45m
Deal found 10/30![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 11/126:00 am -
1 stop3h 53m
Sat 11/142:35 pm -
1 stop6h 14m
Deal found 10/26![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:05 pm -
1 stop4h 55m
Mon 11/306:50 pm -
1 stop5h 55m
Deal found 10/30![Southwest logo]()
$381
This Delta deal was found by Cheapflights users on 10/28. 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 12/195:54 pm -
1 stop4h 11m
Sat 1/26:35 pm -
1 stop3h 49m
Deal found 10/28![Delta logo]()
$423
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 12/238:00 am -
Nonstop1h 54m
Sun 12/277:00 am -
Nonstop1h 46m
Deal found 10/28![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:00 am -
Nonstop1h 53m
Tue 12/14:10 pm -
Nonstop1h 49m
Deal found 10/29![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 10/25. 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.
Wed 12/238:05 pm -
1 stop5h 05m
Mon 12/286:10 pm -
1 stop5h 05m
Deal found 10/25![Southwest logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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.
Sat 3/139:00 am -
1 stop9h 08m
Fri 3/196:48 pm -
1 stop17h 07m
Deal found 10/25![Alaska Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:00 am -
Nonstop1h 53m
Fri 12/44:10 pm -
Nonstop1h 49m
Deal found 10/29![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 10/26. 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 11/108:10 am -
1 stop4h 11m
Sat 11/141:17 pm -
1 stop3h 53m
Deal found 10/26![Delta logo]()
$526
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Sat 12/1211:55 am -
Nonstop1h 42m
Mon 12/144:10 pm -
Nonstop1h 49m
Deal found 10/25![United Airlines logo]()
$409
Last-minute flights from Colorado to IdahoDiscover last-minute flight deals from Colorado to Idaho. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Idaho. Data last updated October 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:30 am -
1 stop6h 00m
Mon 11/167:47 pm -
1 stop14h 01m
Deal found 10/28![Multiple Airlines logo]()
$264
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/173:25 pm -
1 stop6h 55m
Fri 11/204:20 pm -
1 stop7h 39m
Deal found 10/27![Alaska Airlines logo]()
$161
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Wed 11/188:45 pm -
Nonstop2h 14m
Sun 11/225:44 pm -
Nonstop1h 58m
Deal found 10/27![United Airlines logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:03 am -
1 stop8h 21m
Tue 12/14:10 pm -
1 stop19h 00m
Deal found 10/29![Alaska Airlines logo]()
$151
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/198:45 pm -
Nonstop2h 14m
Wed 11/256:30 am -
Nonstop1h 58m
Deal found 10/28![United Airlines logo]()
$186
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 11/205:25 am -
1 stop5h 17m
Mon 11/236:00 am -
1 stop3h 40m
Deal found 10/28![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 10/28. 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.
Fri 11/207:15 am -
1 stop4h 35m
Mon 11/235:35 am -
2 stops7h 15m
Deal found 10/28![Southwest logo]()
$182
This Orbitz deal was found by Cheapflights users on 10/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:55 pm -
1 stop11h 49m
Tue 11/247:55 pm -
1 stop4h 59m
Deal found 10/27![Multiple Airlines logo]()
$170
This Travelocity deal was found by Cheapflights users on 10/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:55 pm -
1 stop11h 49m
Wed 11/257:55 pm -
1 stop4h 59m
Deal found 10/26![Multiple Airlines logo]()
$193
This Travelocity deal was found by Cheapflights users on 10/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:34 am -
1 stop9h 26m
Tue 12/112:56 pm -
1 stop5h 30m
Deal found 10/25![Multiple Airlines logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:50 pm -
1 stop12h 56m
Mon 11/303:32 pm -
2 stops24h 15m
Deal found 10/28![Multiple Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/264:05 pm -
Nonstop2h 05m
Fri 12/41:05 pm -
Nonstop1h 45m
Deal found 10/29![Southwest logo]()
$137
One-way flights from Colorado to IdahoSearch for one-way flight options from Colorado to Idaho. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Colorado to Idaho. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/27. 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 12/101:10 pm -
Nonstop2h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$66
This Southwest deal was found by Cheapflights users on 10/28. 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.
Thu 12/175:00 am -
1 stop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Southwest logo]()
$76
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 12/117:48 am -
Nonstop2h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![United Airlines logo]()
$79
This Southwest deal was found by Cheapflights users on 10/26. 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 12/92:25 pm -
2 stops8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$81
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:25 pm -
2 stops7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Southwest logo]()
$84
This Frontier deal was found by Cheapflights users on 10/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:34 am -
1 stop9h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$85
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2910:44 pm -
1 stop18h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$88
This Delta deal was found by Cheapflights users on 10/26. 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 12/15:25 am -
1 stop4h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$89
This Southwest deal was found by Cheapflights users on 10/27. 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.
Fri 12/1112:05 pm -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$94
This WAYA deal was found by Cheapflights users on 10/25. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:27 pm -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$101
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/17:35 pm -
Nonstop2h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$104
This Delta deal was found by Cheapflights users on 10/28. 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 11/196:08 pm -
1 stop6h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Delta logo]()
$141
Find flight deals from Colorado to Idaho
Keep the following information in mind while searching for Colorado to Idaho flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $131 (Southwest) |
One-way from | $66 (Southwest) |
Popular in | July |
Cheapest in | February |
Average price | $322 |
Good round-trip deal | $314 or less |
Good one-way deal | $220 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado 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 30, 2026.
Use the filters below to find and compare flights from Colorado to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Sat 11/21
8:55 pm-11:00 pm
Nonstop2h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$66
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Sat 11/21
6:10 pm-9:59 pm
1 stop3h 49m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$76
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Thu 12/17
5:00 am-9:50 am
1 stop4h 50m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$76
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Tue 12/1
6:05 am-10:45 am
1 stop4h 40m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$76
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Tue 12/29
6:00 am-2:18 pm
1 stop8h 18m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Fri 12/11
7:48 am-9:59 am
Nonstop2h 11m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Sat 1/16
11:22 am-1:29 pm
Nonstop2h 07m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Tue 11/24
9:34 am-7:00 pm
1 stop9h 26m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$85
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Fri 12/11
12:05 pm-9:10 pm
2 stops9h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$94
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Sat 1/16
5:55 am-2:10 pm
2 stops8h 15m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$94
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Colorado with our price prediction graph.
DEN-BOI
DEN-TWF
DEN-IDA
GJT-BOI
COS-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 Colorado to Idaho
USCO-USID
DEN-BOI
DEN-TWF
DEN-IDA
GJT-BOI
What is the cheapest month to book a flight from Colorado to Idaho?
Currently, February is the cheapest month in which you can book a flight from Colorado to Idaho (average of $209). Flying from Colorado to Idaho in July is currently the most expensive (average of $362). 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.
What is the cheapest time of day to fly from CO to ID?
Find hourly flight availability from Colorado to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
It’s typically best to fly out from Colorado to Idaho in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.
How much does it cost to fly round-trip from Colorado to Idaho?
Airfare is below average for this route at the moment.
Colorado to Idaho flights typically cost between $257 and $460 in December.The cheapest round-trip price found within the last 5 days was $131 on Southwest (Dec 3-Dec 7).
How far ahead should I book a flight from Colorado to Idaho?
To ensure you get the cheapest price possible for a flight from Colorado to Idaho, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Colorado to Idaho?
Use this chart to determine the cheapest time to fly round-trip from Colorado to Idaho. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Colorado to Idaho flight should consider departing on Thursday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 30, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Colorado to Idaho by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Boarding
8.1
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Boarding
8.1
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Boarding
8.1
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Boarding
8.1
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Colorado to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Colorado 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 Colorado to Idaho by cabin class
Find flights from Colorado to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Idaho flights
Browse other Colorado and Idaho flight options. Last updated on October 30, 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 Colorado after your stay in Idaho
Colorado to Idaho flights
Consider these flights traveling from Colorado to Idaho.
Top 4 airlines flying from Colorado to Idaho
Discover the top 4 airlines that operate flights from Colorado 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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$139 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$533 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$377 | FlexibilityNo cancel fee | On-time63% |