$89+ Cheap flights from Idaho to Colorado
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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Colorado 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 ColoradoExplore the most affordable flight options available from Idaho to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Idaho to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/73:20 pm -
Nonstop1h 50m
Wed 10/148:20 pm -
Nonstop2h 00m
Deal found 9/9![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:25 pm -
Nonstop1h 55m
Tue 10/65:55 am -
1 stop6h 20m
Deal found 9/8![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:44 pm -
1 stop3h 56m
Tue 10/65:25 am -
1 stop5h 17m
Deal found 9/8![Delta logo]()
$217
This Expedia deal was found by Cheapflights users on 9/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:50 pm -
1 stop27h 43m
Sun 10/410:49 pm -
1 stop15h 06m
Deal found 9/8![Frontier logo]()
$220
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 9/284:55 pm -
1 stop6h 45m
Mon 10/55:55 am -
2 stops7h 25m
Deal found 9/7![Southwest logo]()
$222
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Thu 10/292:49 pm -
1 stop21h 53m
Wed 11/116:42 pm -
1 stop19h 12m
Deal found 9/9![Frontier logo]()
$224
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:05 am -
2 stops7h 40m
Wed 10/76:05 am -
2 stops6h 45m
Deal found 9/8![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 12/25:43 pm -
1 stop6h 05m
Fri 12/45:00 pm -
1 stop23h 11m
Deal found 9/9![Alaska Airlines logo]()
$230
This CheapOair deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:50 pm -
1 stop8h 54m
Wed 9/306:38 pm -
1 stop19h 17m
Deal found 9/6![Frontier logo]()
$232
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:50 pm -
2 stops13h 25m
Wed 10/146:05 am -
2 stops6h 45m
Deal found 9/8![Southwest logo]()
$233
This Expedia deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:50 pm -
1 stop19h 17m
Mon 9/287:30 am -
1 stop6h 25m
Deal found 9/5![Frontier logo]()
$241
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/34:05 pm -
Nonstop1h 54m
Mon 10/57:05 pm -
Nonstop1h 49m
Deal found 9/8![United Airlines logo]()
$279
Best flights from Idaho to ColoradoDiscover carefully curated flight deals from Idaho to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Idaho to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:45 pm -
Nonstop1h 50m
Sat 11/148:45 am -
Nonstop2h 05m
Deal found 9/8![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 am -
1 stop17h 10m
Sun 11/86:00 am -
1 stop5h 27m
Deal found 9/6![Delta logo]()
$263
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:28 pm -
Nonstop1h 50m
Sat 10/108:05 am -
Nonstop1h 48m
Deal found 9/9![United Airlines logo]()
$279
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Sun 1/318:24 pm -
1 stop17h 43m
Fri 2/52:55 pm -
1 stop5h 09m
Deal found 9/8![Alaska Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/711:20 am -
1 stop4h 35m
Wed 10/148:20 pm -
Nonstop2h 00m
Deal found 9/9![Southwest logo]()
$207
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:45 pm -
1 stop5h 36m
Mon 10/196:33 pm -
1 stop5h 28m
Deal found 9/6![American Airlines logo]()
$420
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:45 pm -
1 stop4h 55m
Wed 10/145:55 am -
2 stops7h 50m
Deal found 9/8![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:15 am -
2 stops9h 50m
Mon 11/212:15 pm -
2 stops8h 55m
Deal found 9/8![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Sun 12/277:00 am -
Nonstop1h 46m
Sat 1/28:15 am -
Nonstop1h 51m
Deal found 9/9![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 12/46:59 pm -
1 stop4h 15m
Mon 12/76:11 pm -
1 stop3h 56m
Deal found 9/9![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 pm -
Nonstop1h 50m
Sun 11/298:00 am -
Nonstop1h 53m
Deal found 9/9![United Airlines logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Sun 12/208:00 am -
1 stop5h 08m
Fri 1/87:54 pm -
1 stop17h 48m
Deal found 9/9![Alaska Airlines logo]()
$335
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 11/32:35 pm -
Nonstop1h 45m
Mon 11/911:46 am -
Nonstop1h 42m
Deal found 9/8![United Airlines logo]()
$299
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:20 am -
1 stop14h 17m
Sun 11/17:03 am -
1 stop5h 27m
Deal found 9/5![Alaska Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:18 am -
2 stops7h 16m
Sun 11/16:00 am -
1 stop5h 38m
Deal found 9/5![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/25:51 pm -
Nonstop1h 52m
Sun 10/48:05 am -
Nonstop1h 48m
Deal found 9/8![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/113:30 pm -
1 stop6h 10m
Sat 11/146:25 am -
2 stops9h 30m
Deal found 9/9![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/25:24 am -
1 stop4h 14m
Mon 10/51:20 pm -
1 stop5h 54m
Deal found 9/9![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 10/2212:42 pm -
2 stops10h 17m
Thu 10/2912:31 pm -
2 stops9h 54m
Deal found 9/7![Alaska Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:15 pm -
1 stop6h 15m
Mon 10/268:10 pm -
1 stop5h 25m
Deal found 9/8![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/145:00 am -
Nonstop2h 10m
Sun 10/187:40 am -
Nonstop1h 54m
Deal found 9/9![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 9/7. 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.
Sun 11/86:49 pm -
1 stop3h 33m
Fri 11/136:08 pm -
1 stop6h 02m
Deal found 9/7![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/153:50 pm -
Nonstop1h 50m
Mon 10/198:55 pm -
Nonstop2h 05m
Deal found 9/9![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:53 pm -
Nonstop1h 52m
Mon 9/288:05 am -
Nonstop1h 48m
Deal found 9/5![United Airlines logo]()
$330
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 1/43:30 pm -
1 stop5h 22m
Fri 1/81:45 pm -
2 stops11h 12m
Deal found 9/7![Alaska Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/136:04 am -
1 stop5h 51m
Thu 1/287:05 am -
1 stop3h 26m
Deal found 9/6![Delta logo]()
$387
This Southwest deal was found by Cheapflights users on 9/7. 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.
Tue 10/133:20 pm -
Nonstop1h 50m
Fri 10/168:55 pm -
Nonstop2h 05m
Deal found 9/7![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:20 am -
Nonstop2h 02m
Sat 12/267:35 pm -
Nonstop2h 08m
Deal found 9/6![United Airlines logo]()
$338
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/2110:10 am -
2 stops7h 15m
Sat 10/247:53 am -
2 stops7h 47m
Deal found 9/9![Alaska Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:04 am -
1 stop3h 40m
Sun 11/17:15 am -
1 stop3h 23m
Deal found 9/6![Delta logo]()
$397
Last-minute flights from Idaho to ColoradoDiscover last-minute flight deals from Idaho to Colorado. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Colorado. Data last updated September 10, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:50 pm -
1 stop19h 17m
Mon 9/287:30 am -
1 stop6h 25m
Deal found 9/5![Frontier logo]()
$241
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 9/284:55 pm -
1 stop6h 45m
Mon 10/55:55 am -
2 stops7h 25m
Deal found 9/7![Southwest logo]()
$222
This CheapOair deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:50 pm -
1 stop8h 54m
Wed 9/306:38 pm -
1 stop19h 17m
Deal found 9/6![Frontier logo]()
$232
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:25 pm -
Nonstop1h 55m
Tue 10/65:55 am -
1 stop6h 20m
Deal found 9/8![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:44 pm -
1 stop3h 56m
Tue 10/65:25 am -
1 stop5h 17m
Deal found 9/8![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:05 am -
2 stops7h 40m
Wed 10/76:05 am -
2 stops6h 45m
Deal found 9/8![Southwest logo]()
$227
This Expedia deal was found by Cheapflights users on 9/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:50 pm -
1 stop27h 43m
Sun 10/410:49 pm -
1 stop15h 06m
Deal found 9/8![Frontier logo]()
$220
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/34:05 pm -
Nonstop1h 54m
Mon 10/57:05 pm -
Nonstop1h 49m
Deal found 9/8![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/76:25 am -
Nonstop2h 01m
Wed 10/147:40 am -
Nonstop1h 54m
Deal found 9/9![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:50 pm -
2 stops13h 25m
Wed 10/146:05 am -
2 stops6h 45m
Deal found 9/8![Southwest logo]()
$233
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:50 pm -
1 stop5h 00m
Thu 10/227:31 am -
1 stop6h 24m
Deal found 9/5![Frontier logo]()
$250
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Thu 10/292:49 pm -
1 stop21h 53m
Wed 11/116:42 pm -
1 stop19h 12m
Deal found 9/9![Frontier logo]()
$224
One-way flights from Idaho to ColoradoSearch for one-way flight options from Idaho to Colorado. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Idaho to Colorado. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:56 pm -
1 stop5h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$89
This Expedia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/192:49 pm -
1 stop21h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$95
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/116:37 am -
1 stop7h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$99
This Expedia deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/96:43 pm -
1 stop18h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$104
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/71:06 pm -
1 stop6h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$109
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am -
2 stops10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$114
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Mon 10/52:50 pm -
1 stop8h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$115
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/272:50 pm -
1 stop19h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$119
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:49 pm -
1 stop4h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$119
This WAYA deal was found by Cheapflights users on 9/7. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:38 pm -
1 stop5h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$124
This Priceline deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:56 pm -
1 stop5h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$125
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 10/65:00 am -
Nonstop2h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$129
Find flight deals from Idaho to Colorado
Keep the following information in mind while searching for Idaho to Colorado flight deals. Data was last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (United Airlines) |
One-way from | $89 (Frontier) |
Popular in | April |
Cheapest in | February |
Average price | $330 |
Good round-trip deal | $355 or less |
Good one-way deal | $196 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Idaho to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Thu 10/8
3:50 pm-5:40 pm
Nonstop1h 50m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Mon 11/9
3:55 pm-5:45 pm
Nonstop1h 50m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Tue 10/6
1:06 pm-7:34 pm
1 stop6h 28m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Thu 10/8
6:00 am-9:44 am
1 stop3h 44m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Tue 11/10
1:14 pm-5:10 pm
1 stop3h 56m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Wed 10/7
11:20 am-3:55 pm
1 stop4h 35m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
SpokaneDenver
GEG Spokane - DEN Denver Intl
GEGDEN
Spokane
Mon 12/7
1:35 pm-4:40 pm
Nonstop2h 05m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sat 10/10
10:35 am-12:34 pm
Nonstop1h 59m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$139
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sat 12/5
5:43 pm-11:48 pm
1 stop6h 05m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$155
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Wed 10/7
4:18 pm-10:37 pm
1 stop6h 19m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$155
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Idaho with our price prediction graph.
BOI-DEN
IDA-DEN
BOI-COS
GEG-DEN
GEG-COS
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 Colorado
USID-USCO
BOI-DEN
IDA-DEN
BOI-COS
GEG-DEN
What is the cheapest month to book a flight from Idaho to Colorado?
Currently, January is the cheapest month in which you can book a flight from Idaho to Colorado (average of $255). Flying from Idaho to Colorado in July is currently the most expensive (average of $356). 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 ID to CO?
Find hourly flight availability from Idaho to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2026.
When flying from Idaho to Colorado, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 46% versus a flight in the morning.
Weekly flight availability from Idaho to Colorado
Explore weekly flight availability from Idaho to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 10, 2026.
The most flights from USID to USCO are scheduled on a Wednesday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Idaho to Colorado?
Airfare is below average for this route at the moment.
Idaho to Colorado flights typically cost between $220 and $416 in October.The cheapest round-trip price found within the last 5 days was $197 on United Airlines (Oct 7-Oct 14).
How far ahead should I book a flight from Idaho to Colorado?
The best time to book flights from Idaho to Colorado is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated September 10, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Idaho to Colorado have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Idaho to Colorado. 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
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Alternative routes for Idaho to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Colorado by cabin class
Find flights from Idaho to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Colorado flights
Browse other Idaho and Colorado flight options. Last updated on September 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Colorado
Find the right flight back to Idaho after your stay in Colorado
Idaho to Colorado flights
Consider these flights traveling from Idaho to Colorado.
Top 5 airlines flying from Idaho to Colorado
Discover the top 5 airlines that operate flights from Idaho to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$52 | Average$154 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$111 | Average$379 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$211 | Average$410 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$352 | FlexibilityNo cancel fee | On-time75% |