$48+ Cheap flights from Colorado to Idaho
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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
jun. 1 — jun. 81
Round-trip
1 adult, Economy
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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 mayo 2, 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 mayo 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 6/21:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/30![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/2110:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
mar. 6/301:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/27![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2110:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 5/261:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/30![Frontier logo]()
$150
This Orbitz deal was found by Cheapflights users on 4/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1310:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
mar. 8/181:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 4/29![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/710:33 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 6/91:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 5/1![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/410:33 am
DEN
- BOI
Nonstop2h 05m
Frontier
dom. 6/71:33 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/29![Frontier logo]()
$161
This Priceline deal was found by Cheapflights users on 4/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
dom. 5/311:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/30![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/1810:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
dom. 6/211:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/27![Frontier logo]()
$166
This Expedia deal was found by Cheapflights users on 4/28. 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.
mar. 5/2610:25 am
DEN
- BOI
Nonstop2h 05m
Multiple Airlines
mar. 6/26:07 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/3110:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 6/91:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/30![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
jue. 7/1610:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
mar. 7/211:25 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 4/28![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 4/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/1510:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
mié. 6/1712:28 pm
GEG
- DEN
Nonstop2h 35m
Frontier
Deal found 4/27![Frontier logo]()
$178
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 mayo 2, 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 mayo 2, 2026.
This United Airlines deal was found by Cheapflights users on 4/27. 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.
mié. 5/277:34 pm
DEN
- BOI
Nonstop2h 01m
United Airlines
mié. 6/36:30 am
BOI
- DEN
Nonstop1h 59m
United Airlines
Deal found 4/27![United Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/95:40 am
DEN
- BOI
1 stop3h 52m
Delta
mar. 6/94:00 pm
BOI
- DEN
1 stop7h 59m
Delta
Deal found 4/30![Delta logo]()
$263
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/308:30 am
DEN
- BOI
1 stop5h 40m
Southwest
lun. 6/14:20 pm
BOI
- DEN
Nonstop1h 55m
Southwest
Deal found 5/1![Southwest logo]()
$281
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
vie. 8/77:05 pm
DEN
- GEG
1 stop4h 54m
Alaska Airlines
mar. 8/113:16 pm
GEG
- DEN
1 stop5h 24m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$367
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/132:45 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
vie. 6/195:45 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 4/30![United Airlines logo]()
$243
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/1512:42 pm
GJT
- GEG
2 stops11h 27m
American Airlines
dom. 5/173:15 pm
GEG
- GJT
1 stop6h 26m
American Airlines
Deal found 5/1![American Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 4/28. 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.
mié. 5/1311:33 am
DEN
- WYS
Nonstop1h 55m
United Airlines
dom. 5/172:03 pm
WYS
- DEN
Nonstop1h 44m
United Airlines
Deal found 4/28![United Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/56:19 pm
DEN
- IDA
1 stop4h 23m
Delta
dom. 6/76:00 am
IDA
- DEN
1 stop3h 18m
Delta
Deal found 4/30![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 4/28. 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.
mar. 5/265:05 pm
DEN
- BOI
1 stop7h 20m
Southwest
mar. 6/26:00 am
BOI
- DEN
2 stops7h 00m
Southwest
Deal found 4/28![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/162:15 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
mié. 5/202:03 pm
WYS
- DEN
Nonstop1h 44m
United Airlines
Deal found 5/1![United Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 4/27. 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.
jue. 6/257:00 pm
DEN
- IDA
1 stop3h 31m
Delta
sáb. 6/276:00 am
IDA
- DEN
1 stop3h 18m
Delta
Deal found 4/27![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 4/29. 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.
vie. 5/156:51 pm
GJT
- GEG
1 stop5h 44m
Delta
mar. 5/194:57 pm
GEG
- GJT
1 stop4h 03m
Delta
Deal found 4/29![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 4/29. 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.
mié. 5/274:45 pm
COS
- BOI
1 stop6h 45m
Southwest
mié. 6/36:40 am
BOI
- COS
2 stops8h 50m
Southwest
Deal found 4/29![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 4/29. 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.
jue. 5/1411:33 am
DEN
- WYS
Nonstop1h 55m
United Airlines
lun. 5/182:03 pm
WYS
- DEN
Nonstop1h 44m
United Airlines
Deal found 4/29![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 4/29. 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.
vie. 5/156:51 pm
GJT
- GEG
1 stop5h 44m
Delta
lun. 5/181:30 pm
GEG
- GJT
1 stop3h 46m
Delta
Deal found 4/29![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 4/30. 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.
mar. 6/98:00 am
DEN
- BOI
Nonstop2h 05m
Southwest
mar. 6/94:05 pm
BOI
- DEN
Nonstop2h 00m
Southwest
Deal found 4/30![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/1511:33 am
DEN
- WYS
Nonstop1h 55m
United Airlines
mar. 5/192:03 pm
WYS
- DEN
Nonstop1h 44m
United Airlines
Deal found 4/30![United Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 4/28. 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.
jue. 8/136:56 pm
GJT
- BOI
1 stop5h 00m
Delta
sáb. 8/155:45 pm
BOI
- GJT
1 stop4h 05m
Delta
Deal found 4/28![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 4/27. 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.
jue. 5/288:10 pm
DEN
- BOI
1 stop4h 50m
Southwest
sáb. 6/66:05 am
BOI
- DEN
2 stops7h 45m
Southwest
Deal found 4/27![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 4/27. 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.
jue. 5/287:34 pm
DEN
- BOI
Nonstop2h 01m
United Airlines
sáb. 6/65:46 pm
BOI
- DEN
Nonstop1h 59m
United Airlines
Deal found 4/27![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 4/28. 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.
jue. 7/166:56 pm
GJT
- BOI
1 stop3h 08m
Delta
sáb. 7/185:15 pm
BOI
- GJT
1 stop4h 40m
Delta
Deal found 4/28![Delta logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/298:00 am
DEN
- IDA
1 stop5h 17m
Alaska Airlines
lun. 6/14:03 pm
IDA
- DEN
2 stops27h 08m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 4/27. 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.
mar. 5/126:04 pm
GJT
- BOI
1 stop4h 31m
United Airlines
sáb. 5/166:30 am
BOI
- GJT
1 stop4h 13m
United Airlines
Deal found 4/27![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/305:30 am
DEN
- WYS
1 stop5h 08m
Delta
sáb. 6/611:15 am
WYS
- DEN
1 stop3h 43m
Delta
Deal found 5/1![Delta logo]()
$275
This Southwest deal was found by Cheapflights users on 4/29. 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.
jue. 6/46:10 am
COS
- BOI
1 stop5h 20m
Southwest
dom. 6/77:50 pm
BOI
- COS
1 stop4h 45m
Southwest
Deal found 4/29![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 4/29. 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.
jue. 8/131:30 pm
GJT
- BOI
1 stop4h 23m
United Airlines
sáb. 8/156:30 am
BOI
- GJT
1 stop5h 58m
United Airlines
Deal found 4/29![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 4/28. 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.
sáb. 5/307:25 am
DEN
- BOI
1 stop7h 09m
Delta
jue. 6/410:39 am
BOI
- DEN
1 stop7h 00m
Delta
Deal found 4/28![Delta logo]()
$291
This Southwest deal was found by Cheapflights users on 4/28. 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.
lun. 6/224:55 pm
COS
- BOI
2 stops8h 15m
Southwest
vie. 6/267:40 pm
BOI
- COS
1 stop5h 35m
Southwest
Deal found 4/28![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 4/28. 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.
vie. 5/222:10 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
vie. 5/295:45 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 4/28![United Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 4/27. 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.
jue. 5/146:51 pm
GJT
- GEG
1 stop5h 44m
Delta
sáb. 5/164:57 pm
GEG
- GJT
1 stop4h 03m
Delta
Deal found 4/27![Delta logo]()
$295
Last-minute flights from Colorado to IdahoDiscover last-minute flight deals from Colorado to Idaho. Data last updated mayo 2, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Idaho. Data last updated mayo 2, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/1510:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
mié. 6/1712:28 pm
GEG
- DEN
Nonstop2h 35m
Frontier
Deal found 4/27![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2110:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 5/261:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/30![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 4/28. 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.
mar. 5/2610:25 am
DEN
- BOI
Nonstop2h 05m
Multiple Airlines
mar. 6/26:07 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 6/21:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/30![Frontier logo]()
$127
This Priceline deal was found by Cheapflights users on 4/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
dom. 5/311:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/30![Frontier logo]()
$165
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Multiple Airlines
mar. 6/26:07 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/3110:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 6/91:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/30![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/410:33 am
DEN
- BOI
Nonstop2h 05m
Frontier
dom. 6/71:33 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/29![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/710:33 am
DEN
- BOI
Nonstop2h 05m
Frontier
mar. 6/91:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 5/1![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/1810:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
dom. 6/211:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/27![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/2110:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
mar. 6/301:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/27![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/2510:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
mar. 6/301:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 4/30![Frontier logo]()
$151
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 mayo 2, 2026.
Search for one-way flight options from Colorado to Idaho. Find affordable one-way fares based on user searches. Data last updated mayo 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/3010:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 4/27![Frontier logo]()
$48
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/2310:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 4/28![Frontier logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1610:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 4/29![Frontier logo]()
$56
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/910:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 4/29![Frontier logo]()
$69
This deal was found by Cheapflights users on 4/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/1210:14 am
DEN
- GEG
Nonstop2h 23m
Frontier
Deal found 4/30![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
jue. 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/28![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/2810:29 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 4/28![Frontier logo]()
$74
This Priceline deal was found by Cheapflights users on 4/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/2610:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/29![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/2810:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 4/30![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/2710:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Deal found 4/30![Frontier logo]()
$98
This Priceline deal was found by Cheapflights users on 4/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/310:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Deal found 4/30![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/510:14 am
DEN
- GEG
Nonstop2h 23m
Frontier
Deal found 4/30![Frontier logo]()
$103
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 mayo 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $48 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $276 |
Good round-trip deal | $270 or less |
Good one-way deal | $99 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 2,558,603 searches. Data last updated mayo 2, 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 - BOI
DENBOI
Denver Intl
mié. 5/27
7:34 pm-9:35 pm
Nonstop2h 01m
Boise Air Term. Gowen Fld
mié. 6/3
6:30 am-8:29 am
Nonstop1h 59m
$243
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
sáb. 6/13
2:45 pm-4:37 pm
Nonstop1h 52m
West Yellowstone
vie. 6/19
5:45 pm-7:30 pm
Nonstop1h 45m
$243
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
mié. 5/13
11:33 am-1:28 pm
Nonstop1h 55m
West Yellowstone
dom. 5/17
2:03 pm-3:47 pm
Nonstop1h 44m
$243
Quickest round-trip
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
sáb. 5/16
2:15 pm-4:07 pm
Nonstop1h 52m
West Yellowstone
mié. 5/20
2:03 pm-3:47 pm
Nonstop1h 44m
$243
DenverBoise
DEN - BOI
DENBOI
Denver Intl
mar. 6/9
5:40 am-9:32 am
1 stop3h 52m
Boise Air Term. Gowen Fld
mar. 6/9
4:00 pm-11:59 pm
1 stop7h 59m
$263
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
jue. 5/14
11:33 am-1:28 pm
Nonstop1h 55m
West Yellowstone
lun. 5/18
2:03 pm-3:47 pm
Nonstop1h 44m
$263
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
vie. 5/15
11:33 am-1:28 pm
Nonstop1h 55m
West Yellowstone
mar. 5/19
2:03 pm-3:47 pm
Nonstop1h 44m
$266
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
vie. 6/5
6:19 pm-10:42 pm
1 stop4h 23m
Idaho Falls Fanning Field
dom. 6/7
6:00 am-9:18 am
1 stop3h 18m
$269
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
jue. 6/25
7:00 pm-10:31 pm
1 stop3h 31m
Idaho Falls Fanning Field
sáb. 6/27
6:00 am-9:18 am
1 stop3h 18m
$269
Grand JunctionSpokane
GJT - GEG
GJTGEG
Grand Junction Regnl
vie. 5/15
6:51 pm-11:35 pm
1 stop5h 44m
Spokane
mar. 5/19
4:57 pm-10:00 pm
1 stop4h 03m
$271
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-GEG
DEN-IDA
GJT-GEG
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-GEG
DEN-IDA
GJT-GEG
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 70 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 month to book a flight from Colorado to Idaho?
Currently, May is the cheapest month in which you can book a flight from Colorado to Idaho (average of $18). Flying from Colorado to Idaho in April is currently the most expensive (average of $114). 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 mayo 2, 2026.
It’s typically best to fly out from Colorado to Idaho in the afternoon. Doing so could potentially save you 37% on the flight price compared to flying at noon, which is usually more expensive.
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 May 2, 2026.
Travelers seeking maximum savings on their Colorado to Idaho flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Colorado to Idaho
Explore weekly flight availability from Colorado to Idaho. 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 mayo 2, 2026.
The most flights from USCO to USID are scheduled on a Saturday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Colorado to Idaho?
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 mayo 2, 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.
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for 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 mayo 2, 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 5 airlines flying from Colorado to Idaho
Discover the top 5 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 2,558,603 searches. Data last updated mayo 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$125 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$358 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$89 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$159 | Average$370 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$352 | FlexibilityNo cancel fee | On-time63% |