$58+ Cheap flights from Denver (DEN) 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Mar 30 — Apr 61
1 adult, Economy
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Cheapest flights from Denver to IdahoExplore the most affordable flight options available from Denver to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 28, 2026.
Explore the most affordable flight options available from Denver to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 28, 2026.
This Frontier deal was found by Cheapflights users on 2/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Thu 3/2612:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/26![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/159:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Thu 3/1912:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/26![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 2/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/2212:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/26![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Sun 4/1212:03 pm
BOI
- DEN
Nonstop2h 03m
Frontier
Deal found 2/25![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/29:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Sun 4/512:03 pm
BOI
- DEN
Nonstop2h 03m
Frontier
Deal found 2/25![Frontier logo]()
$145
This Frontier deal was found by Cheapflights users on 2/25. 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.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/2912:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/25![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:02 pm
DEN
- GEG
1 stop10h 18m
Multiple Airlines
Thu 5/1411:32 am
GEG
- DEN
Nonstop2h 14m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/129:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/1512:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/25![Frontier logo]()
$157
This Expedia deal was found by Cheapflights users on 2/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:41 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/812:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/25![Frontier logo]()
$158
This Expedia deal was found by Cheapflights users on 2/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:10 am
DEN
- BOI
Nonstop1h 58m
Multiple Airlines
Mon 4/206:04 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$162
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:45 pm
DEN
- GEG
1 stop5h 35m
Delta
Tue 5/125:00 am
GEG
- DEN
1 stop5h 49m
Delta
Deal found 2/25![Delta logo]()
$163
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:55 am
DEN
- GEG
1 stop6h 32m
Delta
Tue 5/511:25 am
GEG
- DEN
1 stop5h 45m
Delta
Deal found 2/25![Delta logo]()
$164
Best flights from Denver to IdahoDiscover carefully curated flight deals from Denver to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 28, 2026.
Discover carefully curated flight deals from Denver to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 28, 2026.
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:45 pm
DEN
- GEG
1 stop5h 35m
Delta
Tue 5/125:00 am
GEG
- DEN
1 stop5h 49m
Delta
Deal found 2/25![Delta logo]()
$163
This Southwest deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:10 pm
DEN
- BOI
1 stop4h 50m
Southwest
Tue 4/143:15 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Deal found 2/24![Southwest logo]()
$234
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/162:15 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
Wed 5/202:03 pm
WYS
- DEN
Nonstop1h 44m
United Airlines
Deal found 2/28![United Airlines logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 4/147:00 am
DEN
- IDA
1 stop9h 19m
Alaska Airlines
Tue 4/214:59 pm
IDA
- DEN
1 stop6h 57m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:45 pm
DEN
- GEG
1 stop5h 35m
Delta
Sun 4/269:30 am
GEG
- DEN
1 stop7h 40m
Delta
Deal found 2/25![Delta logo]()
$165
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:55 am
DEN
- GEG
1 stop6h 32m
Delta
Sun 5/36:15 am
GEG
- DEN
1 stop5h 02m
Delta
Deal found 2/26![Delta logo]()
$183
This Delta deal was found by Cheapflights users on 2/27. 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.
Wed 4/151:20 pm
DEN
- GEG
1 stop6h 37m
Delta
Mon 4/206:15 am
GEG
- DEN
1 stop5h 02m
Delta
Deal found 2/27![Delta logo]()
$183
This United Airlines deal was found by Cheapflights users on 2/27. 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 4/241:40 pm
DEN
- JAC
Nonstop1h 44m
United Airlines
Mon 4/274:15 pm
JAC
- DEN
Nonstop1h 54m
United Airlines
Deal found 2/27![United Airlines logo]()
$249
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:55 am
DEN
- GEG
Nonstop2h 20m
Southwest
Tue 5/1210:55 am
GEG
- DEN
2 stops8h 05m
Southwest
Deal found 2/25![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:45 pm
DEN
- LWS
1 stop5h 23m
Delta
Sat 5/26:09 am
LWS
- DEN
1 stop5h 08m
Delta
Deal found 2/25![Delta logo]()
$212
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/207:15 pm
DEN
- IDA
Nonstop1h 51m
United Airlines
Mon 3/232:35 pm
IDA
- DEN
Nonstop1h 50m
United Airlines
Deal found 2/24![United Airlines logo]()
$258
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/108:00 am
DEN
- JAC
Nonstop1h 51m
United Airlines
Sat 3/144:16 pm
JAC
- DEN
Nonstop1h 56m
United Airlines
Deal found 2/24![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/265:30 am
DEN
- BOI
1 stop3h 57m
Delta
Mon 3/304:40 pm
BOI
- DEN
1 stop6h 52m
Delta
Deal found 2/24![Delta logo]()
$234
This Southwest deal was found by Cheapflights users on 2/27. 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 5/288:10 pm
DEN
- BOI
1 stop4h 50m
Southwest
Wed 6/37:05 am
BOI
- DEN
2 stops7h 10m
Southwest
Deal found 2/27![Southwest logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/277:24 pm
DEN
- SUN
1 stop15h 54m
Alaska Airlines
Tue 3/3112:00 pm
SUN
- DEN
1 stop11h 56m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:55 pm
DEN
- BOI
Nonstop2h 01m
United Airlines
Thu 7/235:00 am
BOI
- DEN
Nonstop2h 05m
United Airlines
Deal found 2/24![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:30 am
DEN
- GEG
1 stop5h 20m
Delta
Tue 3/313:25 pm
GEG
- DEN
1 stop7h 07m
Delta
Deal found 2/24![Delta logo]()
$234
This Southwest deal was found by Cheapflights users on 2/27. 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.
Sat 3/288:35 am
DEN
- BOI
Nonstop1h 55m
Southwest
Sat 4/47:50 pm
BOI
- DEN
1 stop4h 50m
Southwest
Deal found 2/27![Southwest logo]()
$332
This United Airlines deal was found by Cheapflights users on 2/27. 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.
Thu 5/287:45 am
DEN
- BOI
Nonstop2h 00m
United Airlines
Wed 6/36:30 am
BOI
- DEN
Nonstop1h 59m
United Airlines
Deal found 2/27![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 2/27. 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.
Sat 3/286:30 am
DEN
- BOI
1 stop6h 35m
Delta
Sat 4/410:09 am
BOI
- DEN
1 stop4h 58m
Delta
Deal found 2/27![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:35 am
DEN
- BOI
2 stops9h 45m
Southwest
Mon 4/202:00 pm
BOI
- DEN
2 stops9h 10m
Southwest
Deal found 2/25![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 2/28. 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 4/28:10 am
DEN
- IDA
Nonstop1h 43m
United Airlines
Mon 4/65:20 pm
IDA
- DEN
Nonstop1h 50m
United Airlines
Deal found 2/28![United Airlines logo]()
$294
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 5/145:58 pm
DEN
- JAC
2 stops41h 22m
Alaska Airlines
Sun 5/173:27 pm
JAC
- DEN
2 stops32h 22m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$438
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:20 pm
DEN
- BOI
1 stop8h 50m
Southwest
Sat 3/284:25 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Deal found 2/25![Southwest logo]()
$334
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:20 pm
DEN
- LWS
1 stop11h 48m
Delta
Sat 5/26:09 am
LWS
- DEN
1 stop5h 08m
Delta
Deal found 2/26![Delta logo]()
$252
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Mon 3/308:10 am
DEN
- IDA
Nonstop1h 43m
United Airlines
Mon 4/65:20 pm
IDA
- DEN
Nonstop1h 50m
United Airlines
Deal found 2/28![United Airlines logo]()
$294
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/197:24 pm
DEN
- IDA
1 stop27h 28m
Alaska Airlines
Mon 3/235:59 pm
IDA
- DEN
2 stops29h 45m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:30 am
DEN
- JAC
1 stop6h 34m
Delta
Mon 4/275:11 pm
JAC
- DEN
1 stop5h 18m
Delta
Deal found 2/27![Delta logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:38 am
DEN
- IDA
2 stops11h 58m
Alaska Airlines
Sun 3/158:00 am
IDA
- DEN
1 stop15h 59m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$468
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:25 pm
DEN
- IDA
1 stop3h 49m
Delta
Sat 8/153:04 pm
IDA
- DEN
1 stop4h 06m
Delta
Deal found 2/25![Delta logo]()
$269
Last-minute flights from Denver to IdahoDiscover last-minute flight deals from Denver to Idaho. Data last updated February 28, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Idaho. Data last updated February 28, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:41 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/812:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/25![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/129:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/1512:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/25![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/159:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Thu 3/1912:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/26![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 2/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Thu 3/2612:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/26![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 2/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/2212:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/26![Frontier logo]()
$136
This Frontier deal was found by Cheapflights users on 2/25. 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.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Sun 3/2912:15 pm
BOI
- DEN
Nonstop2h 00m
Frontier
Deal found 2/25![Frontier logo]()
$146
This Expedia deal was found by Cheapflights users on 2/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:10 am
DEN
- BOI
Nonstop2h 10m
Multiple Airlines
Wed 3/256:04 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 2/28. 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.
Sun 3/229:11 am
DEN
- GEG
Nonstop2h 37m
Frontier
Thu 3/2611:32 am
GEG
- DEN
Nonstop2h 23m
Frontier
Deal found 2/28![Frontier logo]()
$206
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/241:10 pm
DEN
- BOI
1 stop7h 51m
Delta
Sat 3/284:40 pm
BOI
- DEN
1 stop6h 52m
Delta
Deal found 2/25![Delta logo]()
$204
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Wed 3/2511:45 am
DEN
- IDA
Nonstop1h 45m
United Airlines
Wed 4/15:20 pm
IDA
- DEN
Nonstop1h 50m
United Airlines
Deal found 2/25![United Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/269:10 am
DEN
- GEG
Nonstop2h 37m
Frontier
Thu 4/211:06 am
GEG
- DEN
Nonstop2h 14m
Frontier
Deal found 2/26![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/299:11 am
DEN
- GEG
Nonstop2h 37m
Frontier
Thu 4/211:06 am
GEG
- DEN
Nonstop2h 14m
Frontier
Deal found 2/24![Frontier logo]()
$193
One-way flights from Denver to IdahoSearch for one-way flight options from Denver to Idaho. Find affordable one-way fares based on user searches. Data last updated February 28, 2026.
Search for one-way flight options from Denver to Idaho. Find affordable one-way fares based on user searches. Data last updated February 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Deal found 2/25![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Deal found 2/25![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:10 am
DEN
- GEG
Nonstop2h 21m
Frontier
Deal found 2/24![Frontier logo]()
$63
This Priceline deal was found by Cheapflights users on 2/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/29:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Deal found 2/25![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 4/169:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Deal found 2/28![Frontier logo]()
$70
This Priceline deal was found by Cheapflights users on 2/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Deal found 2/25![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:10 am
DEN
- GEG
Nonstop2h 21m
Frontier
Deal found 2/24![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 2/25. 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.
Sun 4/129:10 am
DEN
- BOI
Nonstop1h 58m
Frontier
Deal found 2/25![Frontier logo]()
$78
This Frontier deal was found by Cheapflights users on 2/25. 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.
Sun 3/89:10 am
DEN
- BOI
Nonstop2h 10m
Frontier
Deal found 2/25![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:28 am
DEN
- GEG
Nonstop2h 21m
Frontier
Deal found 2/26![Frontier logo]()
$83
This Priceline deal was found by Cheapflights users on 2/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:28 am
DEN
- GEG
Nonstop2h 21m
Frontier
Deal found 2/25![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 2/28. 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.
Sun 4/199:28 am
DEN
- GEG
Nonstop2h 21m
Frontier
Deal found 2/28![Frontier logo]()
$88
Find flight deals from Denver to Idaho
Keep the following information in mind while searching for Denver to Idaho flight deals. Data was last updated February 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $134 (Frontier) |
One-way from | $58 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $232 |
Good round-trip deal | $114 or less |
Good one-way deal | $121 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver 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 February 28, 2026.
Use the filters below to find and compare flights from Denver to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
DenverSpokane
DEN - GEG
DENGEG
Denver Intl
Tue 5/5
7:45 pm-12:20 am
1 stop5h 35m
Spokane
Tue 5/12
5:00 am-11:49 am
1 stop5h 49m
$163
DenverSpokane
DEN - GEG
DENGEG
Denver Intl
Thu 4/23
7:45 pm-12:20 am
1 stop5h 35m
Spokane
Sun 4/26
9:30 am-6:10 pm
1 stop7h 40m
$165
DenverSpokane
DEN - GEG
DENGEG
Denver Intl
Fri 5/1
6:55 am-12:27 pm
1 stop6h 32m
Spokane
Sun 5/3
6:15 am-12:17 pm
1 stop5h 02m
$183
DenverSpokane
DEN - GEG
DENGEG
Denver Intl
Wed 4/15
1:20 pm-6:57 pm
1 stop6h 37m
Spokane
Mon 4/20
6:15 am-12:17 pm
1 stop5h 02m
$183
DenverLewiston
DEN - LWS
DENLWS
Denver Intl
Thu 4/30
7:45 pm-12:08 am
1 stop5h 23m
Lewiston Nez Perce Rgnl
Sat 5/2
6:09 am-12:17 pm
1 stop5h 08m
$212
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Mon 4/13
8:10 pm-1:00 am
1 stop4h 50m
Boise Air Term. Gowen Fld
Tue 4/14
3:15 pm-5:05 pm
Nonstop1h 50m
$234
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Thu 3/26
5:30 am-9:27 am
1 stop3h 57m
Boise Air Term. Gowen Fld
Mon 3/30
4:40 pm-11:32 pm
1 stop6h 52m
$234
DenverSpokane
DEN - GEG
DENGEG
Denver Intl
Tue 3/24
6:30 am-10:50 am
1 stop5h 20m
Spokane
Tue 3/31
3:25 pm-11:32 pm
1 stop7h 07m
$234
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
Sat 5/16
2:15 pm-4:07 pm
Nonstop1h 52m
West Yellowstone
Wed 5/20
2:03 pm-3:47 pm
Nonstop1h 44m
$243
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 3/28
6:30 am-1:05 pm
1 stop6h 35m
Boise Air Term. Gowen Fld
Sat 4/4
10:09 am-3:07 pm
1 stop4h 58m
$247
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Denver to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Denver with our price prediction graph.
DEN-BOI
DEN-GEG
DEN-IDA
DEN-WYS
DEN-JAC
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 Denver to Idaho
DEN-USID
DEN-BOI
DEN-GEG
DEN-IDA
DEN-WYS
What is the cheapest month to book a flight from Denver to Idaho?
Currently, May is the cheapest month in which you can book a flight from Denver to Idaho (average of $37). Flying from Denver to Idaho in April is currently the most expensive (average of $189). 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 DEN to ID?
Find hourly flight availability from Denver 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 February 28, 2026.
A simple way to save on the total cost of your ticket is to fly from Denver to Idaho in the afternoon. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Denver to Idaho?
Use this chart to determine the cheapest time to fly round-trip from Denver to Idaho. Price data was last updated on February 21, 2026.
Travelers seeking maximum savings on their Denver to Idaho flight should consider departing on Thursday 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 Denver to Idaho
Explore weekly flight availability from Denver 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 February 28, 2026.
The most flights from DEN to USID are scheduled on a Thursday (16 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).
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 February 28, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Denver to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Denver 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 Denver to Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Denver to Idaho by cabin class
Find flights from Denver to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Denver and Idaho flights
Browse other Denver and Idaho flight options. Last updated on February 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Denver to Idaho flights
Consider these flights traveling from Denver to Idaho.
Top 5 airlines flying from Denver to Idaho
Discover the top 5 airlines that operate flights from Denver 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 February 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$40 | Average$88 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$54 | Average$126 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$288 | FlexibilityNo cancel fee | On-time63% |