$64+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Aug 5 — Aug 121
Round-trip
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 July 6, 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 July 6, 2026.
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Sun 8/161:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/1![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/249:55 am
DEN
- BOI
Nonstop2h 09m
Frontier
Tue 9/2912:59 pm
BOI
- DEN
Nonstop2h 01m
Frontier
Deal found 7/3![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/116:15 pm
DEN
- BOI
1 stop5h 49m
Multiple Airlines
Tue 8/181:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$203
This Frontier deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/610:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Sun 8/91:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/2![Frontier logo]()
$209
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 am
DEN
- BOI
Nonstop2h 00m
Multiple Airlines
Sun 8/164:35 pm
BOI
- DEN
1 stop7h 24m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Wed 9/308:22 am
DEN
- BOI
1 stop7h 08m
Multiple Airlines
Thu 10/812:23 pm
BOI
- DEN
Nonstop2h 01m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Thu 9/109:55 am
DEN
- BOI
Nonstop2h 09m
Frontier
Fri 9/113:52 pm
BOI
- DEN
1 stop12h 00m
Frontier
Deal found 7/1![Frontier logo]()
$217
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/151:39 pm
DEN
- IDA
Nonstop1h 44m
United Airlines
Sat 8/224:04 pm
IDA
- DEN
Nonstop1h 54m
United Airlines
Deal found 7/3![United Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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.
Wed 8/2610:49 pm
DEN
- GEG
1 stop11h 33m
Multiple Airlines
Sun 8/3010:12 am
GEG
- DEN
1 stop16h 36m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$259
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Fri 8/143:35 pm
DEN
- IDA
Nonstop1h 41m
United Airlines
Fri 8/215:53 pm
IDA
- DEN
Nonstop1h 52m
United Airlines
Deal found 7/6![United Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/1311:25 am
DEN
- WYS
Nonstop1h 56m
United Airlines
Thu 8/201:56 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 7/4![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 7/6. 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 12/236:25 pm
DEN
- IDA
1 stop3h 54m
Delta
Sun 12/276:45 pm
IDA
- DEN
1 stop3h 48m
Delta
Deal found 7/6![Delta logo]()
$269
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 July 6, 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 July 6, 2026.
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/2211:38 am
DEN
- BOI
Nonstop2h 00m
United Airlines
Wed 8/266:30 am
BOI
- DEN
Nonstop2h 01m
United Airlines
Deal found 7/2![United Airlines logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:04 pm
DEN
- BOI
1 stop5h 20m
Alaska Airlines
Sat 9/197:20 am
BOI
- DEN
1 stop12h 06m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 7/6. 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 8/146:28 pm
DEN
- IDA
1 stop4h 04m
Delta
Fri 8/217:00 pm
IDA
- DEN
1 stop3h 55m
Delta
Deal found 7/6![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/226:10 am
DEN
- BOI
2 stops7h 35m
Southwest
Wed 8/266:25 am
BOI
- DEN
2 stops7h 15m
Southwest
Deal found 7/2![Southwest logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:10 am
DEN
- TWF
1 stop5h 50m
Multiple Airlines
Mon 8/101:45 pm
TWF
- DEN
2 stops27h 25m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Fri 8/143:35 pm
DEN
- IDA
Nonstop1h 41m
United Airlines
Fri 8/215:53 pm
IDA
- DEN
Nonstop1h 52m
United Airlines
Deal found 7/6![United Airlines logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/248:08 am
DEN
- BOI
1 stop5h 06m
Alaska Airlines
Tue 9/296:49 pm
BOI
- DEN
1 stop17h 31m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 7/5. 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.
Tue 10/271:00 pm
DEN
- IDA
1 stop5h 16m
Delta
Tue 11/36:00 am
IDA
- DEN
1 stop3h 50m
Delta
Deal found 7/5![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/18:05 am
DEN
- IDA
Nonstop1h 48m
United Airlines
Sun 10/44:05 pm
IDA
- DEN
Nonstop1h 54m
United Airlines
Deal found 7/3![United Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 7/5. 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.
Wed 8/193:56 pm
DEN
- IDA
1 stop6h 36m
Delta
Wed 8/267:00 pm
IDA
- DEN
1 stop3h 55m
Delta
Deal found 7/5![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/1. 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.
Tue 8/111:05 pm
DEN
- BOI
2 stops9h 10m
Southwest
Sun 8/164:35 pm
BOI
- DEN
1 stop7h 35m
Southwest
Deal found 7/1![Southwest logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 7/5. 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.
Thu 9/248:08 am
DEN
- BOI
1 stop5h 06m
Alaska Airlines
Sun 9/276:00 am
BOI
- DEN
1 stop4h 52m
Alaska Airlines
Deal found 7/5![Alaska Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Thu 8/1311:25 am
DEN
- WYS
Nonstop1h 56m
United Airlines
Thu 8/201:56 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 7/5![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 7/5. 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.
Wed 12/236:25 pm
DEN
- IDA
1 stop3h 54m
Delta
Sun 12/276:45 pm
IDA
- DEN
1 stop3h 48m
Delta
Deal found 7/5![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:00 am
DEN
- BOI
Nonstop1h 50m
Southwest
Fri 8/2812:10 pm
BOI
- DEN
1 stop9h 40m
Southwest
Deal found 7/5![Southwest logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:10 am
DEN
- TWF
1 stop5h 50m
Multiple Airlines
Fri 7/241:45 pm
TWF
- DEN
2 stops32h 04m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 7/168:05 am
DEN
- IDA
Nonstop1h 45m
United Airlines
Tue 7/215:54 pm
IDA
- DEN
Nonstop1h 51m
United Airlines
Deal found 7/1![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/195:40 am
DEN
- IDA
1 stop5h 03m
Delta
Sat 7/256:00 am
IDA
- DEN
1 stop3h 12m
Delta
Deal found 7/2![Delta logo]()
$284
This Southwest deal was found by Cheapflights users on 7/1. 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.
Thu 9/104:40 pm
DEN
- BOI
2 stops7h 15m
Southwest
Fri 9/119:05 am
BOI
- DEN
2 stops6h 30m
Southwest
Deal found 7/1![Southwest logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/275:34 pm
DEN
- BOI
1 stop6h 10m
Alaska Airlines
Wed 9/28:03 am
BOI
- DEN
2 stops11h 23m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 7/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/254:10 pm
DEN
- BOI
2 stops6h 40m
Southwest
Mon 9/2810:50 am
BOI
- DEN
1 stop7h 55m
Southwest
Deal found 7/5![Southwest logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 7/5. 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.
Tue 10/2712:31 pm
DEN
- GEG
1 stop10h 09m
Alaska Airlines
Wed 10/287:16 am
GEG
- DEN
1 stop9h 46m
Alaska Airlines
Deal found 7/5![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 7/1. 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.
Thu 8/65:35 am
DEN
- BOI
1 stop4h 13m
Delta
Sun 8/96:00 am
BOI
- DEN
1 stop3h 14m
Delta
Deal found 7/1![Delta logo]()
$318
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Tue 9/298:05 am
DEN
- IDA
Nonstop1h 48m
United Airlines
Sat 10/35:51 pm
IDA
- DEN
Nonstop1h 52m
United Airlines
Deal found 7/5![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:40 pm
DEN
- BOI
Nonstop1h 55m
Southwest
Fri 9/182:55 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Deal found 7/5![Southwest logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/1611:32 am
DEN
- GEG
1 stop12h 35m
Alaska Airlines
Wed 8/197:03 am
GEG
- DEN
1 stop11h 23m
Alaska Airlines
Deal found 7/4![Alaska Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/1911:24 am
DEN
- WYS
Nonstop1h 56m
United Airlines
Fri 8/284:44 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 7/4![United Airlines logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 12/105:00 pm
DEN
- GEG
1 stop6h 57m
Alaska Airlines
Sun 12/136:07 pm
GEG
- DEN
1 stop16h 48m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/1311:25 am
DEN
- WYS
Nonstop1h 56m
United Airlines
Sun 8/164:44 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 7/3![United Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:56 pm
DEN
- TWF
1 stop6h 22m
Delta
Thu 8/276:16 am
TWF
- DEN
1 stop2h 58m
Delta
Deal found 7/2![Delta logo]()
$371
Last-minute flights from Denver to IdahoDiscover last-minute flight deals from Denver to Idaho. Data last updated July 6, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Idaho. Data last updated July 6, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/3010:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Sun 8/91:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/2![Frontier logo]()
$228
This Expedia deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
Wed 8/56:02 am
DEN
- BOI
1 stop6h 45m
Multiple Airlines
Sun 8/91:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Thu 8/610:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Sun 8/91:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/1![Frontier logo]()
$208
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Sun 8/161:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/1![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/116:15 pm
DEN
- BOI
1 stop5h 49m
Multiple Airlines
Tue 8/181:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$203
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 am
DEN
- BOI
Nonstop2h 00m
Multiple Airlines
Sun 8/164:35 pm
BOI
- DEN
1 stop7h 24m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$213
This Expedia deal was found by Cheapflights users on 7/5. 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.
Thu 8/136:02 am
DEN
- BOI
1 stop8h 05m
Multiple Airlines
Thu 8/2012:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$243
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Fri 8/143:35 pm
DEN
- IDA
Nonstop1h 41m
United Airlines
Fri 8/215:53 pm
IDA
- DEN
Nonstop1h 52m
United Airlines
Deal found 7/6![United Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/151:39 pm
DEN
- IDA
Nonstop1h 44m
United Airlines
Sat 8/224:04 pm
IDA
- DEN
Nonstop1h 54m
United Airlines
Deal found 7/3![United Airlines logo]()
$249
This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Wed 8/261:43 pm
DEN
- BOI
1 stop6h 37m
Multiple Airlines
Thu 8/2712:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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.
Wed 8/2610:49 pm
DEN
- GEG
1 stop11h 33m
Multiple Airlines
Sun 8/3010:12 am
GEG
- DEN
1 stop16h 36m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$259
This Priceline deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/286:17 am
DEN
- BOI
1 stop7h 45m
Multiple Airlines
Tue 9/11:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$239
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 July 6, 2026.
Search for one-way flight options from Denver to Idaho. Find affordable one-way fares based on user searches. Data last updated July 6, 2026.
This Frontier deal was found by Cheapflights users on 7/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 7/1![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 7/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 7/1![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/229:55 am
DEN
- BOI
Nonstop2h 09m
Frontier
Deal found 7/3![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 10/19:55 am
DEN
- BOI
Nonstop2h 09m
Frontier
Deal found 7/2![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 7/5. 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.
Thu 9/179:55 am
DEN
- BOI
Nonstop2h 09m
Frontier
Deal found 7/5![Frontier logo]()
$105
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 9/13:00 pm
DEN
- BOI
1 stop5h 33m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$113
This Frontier deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/210:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 7/2![Frontier logo]()
$114
This Frontier deal was found by Cheapflights users on 7/5. 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.
Sun 8/910:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 7/5![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Wed 9/97:08 pm
DEN
- GEG
1 stop15h 11m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$119
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 8/13:55 pm
DEN
- BOI
Nonstop2h 01m
United Airlines
Deal found 7/1![United Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Wed 9/210:49 pm
DEN
- GEG
1 stop11h 30m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Sat 8/2910:49 pm
DEN
- GEG
1 stop11h 33m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$125
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 July 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $178 (Expedia) |
One-way from | $64 (Frontier) |
Popular in | May |
Cheapest in | February |
Average price | $317 |
Good round-trip deal | $250 or less |
Good one-way deal | $148 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 July 6, 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
Cheapest round-trip
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 8/22
11:38 am-1:38 pm
Nonstop2h 00m
Boise Air Term. Gowen Fld
Wed 8/26
6:30 am-8:31 am
Nonstop2h 01m
$245
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 9/12
3:04 pm-8:24 pm
1 stop5h 20m
Boise Air Term. Gowen Fld
Sat 9/19
7:20 am-7:26 pm
1 stop12h 06m
$251
Quickest round-trip
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Fri 8/14
3:35 pm-5:16 pm
Nonstop1h 41m
Idaho Falls Fanning Field
Fri 8/21
5:53 pm-7:45 pm
Nonstop1h 52m
$262
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Thu 10/1
8:05 am-9:53 am
Nonstop1h 48m
Idaho Falls Fanning Field
Sun 10/4
4:05 pm-5:59 pm
Nonstop1h 54m
$262
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
Thu 8/13
11:25 am-1:21 pm
Nonstop1h 56m
West Yellowstone
Thu 8/20
1:56 pm-3:41 pm
Nonstop1h 45m
$263
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Thu 9/24
8:08 am-1:14 pm
1 stop5h 06m
Boise Air Term. Gowen Fld
Tue 9/29
6:49 pm-12:20 pm
1 stop17h 31m
$268
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Fri 8/14
6:28 pm-10:32 pm
1 stop4h 04m
Idaho Falls Fanning Field
Fri 8/21
7:00 pm-10:55 pm
1 stop3h 55m
$269
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Tue 10/27
1:00 pm-6:16 pm
1 stop5h 16m
Idaho Falls Fanning Field
Tue 11/3
6:00 am-9:50 am
1 stop3h 50m
$269
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Wed 8/19
3:56 pm-10:32 pm
1 stop6h 36m
Idaho Falls Fanning Field
Wed 8/26
7:00 pm-10:55 pm
1 stop3h 55m
$269
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Wed 12/23
6:25 pm-10:19 pm
1 stop3h 54m
Idaho Falls Fanning Field
Sun 12/27
6:45 pm-10:33 pm
1 stop3h 48m
$269
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-IDA
DEN-TWF
DEN-WYS
DEN-GEG
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-IDA
DEN-TWF
DEN-WYS
What is the cheapest month to book a flight from Denver to Idaho?
Currently, December is the cheapest month in which you can book a flight from Denver to Idaho (average of $25). Flying from Denver 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 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 July 6, 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 23% on your trip compared to booking a flight at noon.
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 July 6, 2026.
The most flights from DEN to USID are scheduled on a Sunday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Denver to Idaho?
How far ahead should I book a flight from Denver to Idaho?
Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 July 4, 2026.
Travelers seeking maximum savings on their Denver 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.
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 July 6, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
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
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 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 July 6, 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 July 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$130 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$339 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$84 | Average$88 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$177 | Average$365 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$323 | FlexibilityNo cancel fee | On-time63% |