$57+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
May 7 — May 141
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 April 7, 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 April 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Tue 6/21:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/6![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Tue 6/910:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Sun 6/141:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 4/4![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Sun 5/1010:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Thu 5/141:22 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/3![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Sun 6/141:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 4/6![Frontier logo]()
$166
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2810:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Sun 7/121:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 4/6![Frontier logo]()
$168
This Expedia deal was found by Cheapflights users on 4/3. 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.
Tue 6/2310:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Tue 6/301:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 4/3![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Thu 5/141:22 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/6![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Sun 5/101:22 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/5![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2310:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Sun 7/261:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 4/5![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:12 am
DEN
- GEG
Nonstop2h 26m
Multiple Airlines
Sun 5/318:45 pm
GEG
- DEN
1 stop23h 42m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Mon 6/810:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Mon 6/1512:28 pm
GEG
- DEN
Nonstop2h 24m
Frontier
Deal found 4/3![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 4/5. 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.
Wed 5/2710:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Mon 6/112:33 pm
GEG
- DEN
Nonstop2h 26m
Frontier
Deal found 4/5![Frontier logo]()
$198
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 April 7, 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 April 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Thu 4/2310:29 pm
DEN
- TWF
1 stop13h 31m
Multiple Airlines
Mon 4/271:40 pm
TWF
- DEN
1 stop21h 50m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$233
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Fri 5/158:10 am
DEN
- IDA
Nonstop1h 45m
United Airlines
Fri 5/222:30 pm
IDA
- DEN
Nonstop1h 48m
United Airlines
Deal found 4/3![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 4/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:40 am
DEN
- BOI
1 stop3h 52m
Delta
Tue 6/304:00 pm
BOI
- DEN
1 stop7h 59m
Delta
Deal found 4/3![Delta logo]()
$263
This Southwest deal was found by Cheapflights users on 4/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:20 pm
DEN
- BOI
Nonstop1h 55m
Southwest
Wed 5/65:15 pm
BOI
- DEN
1 stop4h 15m
Southwest
Deal found 4/6![Southwest logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 5/51:02 pm
DEN
- GEG
1 stop10h 18m
Alaska Airlines
Wed 5/610:30 am
GEG
- DEN
1 stop12h 29m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
DEN
- TWF
2 stops30h 00m
Multiple Airlines
Mon 5/41:40 pm
TWF
- DEN
1 stop13h 45m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$251
This United Airlines deal was found by Cheapflights users on 4/5. 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.
Sat 5/162:15 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
Sun 5/172:03 pm
WYS
- DEN
Nonstop1h 44m
United Airlines
Deal found 4/5![United Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 4/5. 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.
Mon 5/49:35 pm
DEN
- BOI
Nonstop1h 55m
Southwest
Thu 5/74:20 pm
BOI
- DEN
Nonstop1h 55m
Southwest
Deal found 4/5![Southwest logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:00 am
DEN
- TWF
1 stop6h 00m
Multiple Airlines
Mon 5/41:40 pm
TWF
- DEN
2 stops28h 27m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 4/5. 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.
Thu 5/75:30 am
DEN
- BOI
1 stop4h 02m
Delta
Mon 5/116:41 pm
BOI
- DEN
1 stop3h 59m
Delta
Deal found 4/5![Delta logo]()
$291
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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.
Tue 5/127:06 pm
DEN
- GEG
2 stops17h 46m
Alaska Airlines
Wed 5/207:01 am
GEG
- DEN
1 stop15h 48m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:10 am
DEN
- IDA
Nonstop1h 45m
United Airlines
Sun 5/105:26 pm
IDA
- DEN
Nonstop1h 55m
United Airlines
Deal found 4/7![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 4/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:45 am
DEN
- BOI
Nonstop2h 00m
Southwest
Mon 6/84:25 pm
BOI
- DEN
Nonstop1h 55m
Southwest
Deal found 4/3![Southwest logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:59 pm
DEN
- TWF
2 stops36h 01m
Multiple Airlines
Mon 5/41:40 pm
TWF
- DEN
1 stop13h 45m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$260
This Southwest deal was found by Cheapflights users on 4/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:30 pm
DEN
- BOI
2 stops6h 55m
Southwest
Sat 6/203:15 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Deal found 4/4![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 4/2. 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.
Thu 5/215:30 am
DEN
- BOI
1 stop4h 02m
Delta
Mon 5/253:23 pm
BOI
- DEN
1 stop8h 21m
Delta
Deal found 4/2![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 4/5. 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.
Fri 6/52:10 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
Wed 6/102:19 pm
WYS
- DEN
Nonstop1h 41m
United Airlines
Deal found 4/5![United Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
DEN
- TWF
1 stop6h 00m
Multiple Airlines
Fri 4/241:40 pm
TWF
- DEN
2 stops25h 56m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 4/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:41 pm
DEN
- BOI
1 stop5h 14m
Delta
Thu 6/186:43 am
BOI
- DEN
1 stop5h 35m
Delta
Deal found 4/4![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Sun 5/1711:33 am
DEN
- WYS
Nonstop1h 55m
United Airlines
Sun 5/245:45 pm
WYS
- DEN
Nonstop1h 45m
United Airlines
Deal found 4/2![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:00 pm
DEN
- BOI
Nonstop1h 55m
Southwest
Tue 5/53:15 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Deal found 4/7![Southwest logo]()
$294
This Alaska Airlines deal was found by Cheapflights users on 4/4. 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.
Fri 5/17:06 pm
DEN
- GEG
1 stop28h 14m
Alaska Airlines
Sun 5/37:10 am
GEG
- DEN
2 stops15h 49m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 4/2. 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.
Fri 4/245:30 am
DEN
- JAC
1 stop6h 34m
Delta
Sun 4/265:11 pm
JAC
- DEN
1 stop3h 35m
Delta
Deal found 4/2![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Sun 5/178:10 am
DEN
- IDA
Nonstop1h 45m
United Airlines
Sun 5/247:00 am
IDA
- DEN
Nonstop1h 55m
United Airlines
Deal found 4/2![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 4/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:05 pm
DEN
- BOI
1 stop4h 20m
Southwest
Tue 6/305:30 am
BOI
- DEN
2 stops8h 05m
Southwest
Deal found 4/3![Southwest logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:51 pm
DEN
- IDA
2 stops17h 26m
Alaska Airlines
Mon 5/254:03 pm
IDA
- DEN
1 stop19h 03m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$415
This Delta deal was found by Cheapflights users on 4/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:49 pm
DEN
- SUN
1 stop6h 10m
Delta
Sun 5/107:30 am
SUN
- DEN
1 stop4h 15m
Delta
Deal found 4/4![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Fri 6/52:10 pm
DEN
- WYS
Nonstop1h 52m
United Airlines
Mon 6/82:19 pm
WYS
- DEN
Nonstop1h 41m
United Airlines
Deal found 4/2![United Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 4/5. 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.
Thu 5/213:49 pm
DEN
- SUN
1 stop6h 10m
Delta
Mon 5/257:30 am
SUN
- DEN
1 stop4h 15m
Delta
Deal found 4/5![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 4/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:55 pm
DEN
- GEG
Nonstop2h 20m
Southwest
Sat 7/46:05 am
GEG
- DEN
Nonstop2h 10m
Southwest
Deal found 4/6![Southwest logo]()
$366
Last-minute flights from Denver to IdahoDiscover last-minute flight deals from Denver to Idaho. Data last updated April 7, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Idaho. Data last updated April 7, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 5/46:00 am
DEN
- IDA
2 stops15h 31m
Multiple Airlines
Mon 5/1110:21 pm
IDA
- DEN
1 stop11h 17m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Thu 5/141:22 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/6![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Sun 5/101:22 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/5![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:34 pm
DEN
- GEG
1 stop8h 55m
Multiple Airlines
Fri 5/812:33 pm
GEG
- DEN
Nonstop2h 26m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Sun 5/1010:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Thu 5/141:22 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/3![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1410:22 am
DEN
- BOI
Nonstop2h 05m
Multiple Airlines
Fri 5/154:19 pm
BOI
- DEN
1 stop7h 40m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$222
This Orbitz deal was found by Cheapflights users on 4/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1710:22 am
DEN
- BOI
Nonstop2h 05m
Multiple Airlines
Wed 5/206:07 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$199
This Frontier deal was found by Cheapflights users on 4/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Thu 5/281:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/4![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:12 am
DEN
- GEG
Nonstop2h 26m
Multiple Airlines
Sun 5/318:45 pm
GEG
- DEN
1 stop23h 42m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$193
This Frontier deal was found by Cheapflights users on 4/5. 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.
Wed 5/2710:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Mon 6/112:33 pm
GEG
- DEN
Nonstop2h 26m
Frontier
Deal found 4/5![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Tue 6/21:25 pm
BOI
- DEN
Nonstop2h 16m
Frontier
Deal found 4/6![Frontier logo]()
$127
This Expedia deal was found by Cheapflights users on 4/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:25 am
DEN
- BOI
Nonstop2h 05m
Multiple Airlines
Tue 6/26:07 pm
BOI
- DEN
1 stop5h 52m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$217
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 April 7, 2026.
Search for one-way flight options from Denver to Idaho. Find affordable one-way fares based on user searches. Data last updated April 7, 2026.
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/6![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/7![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/6![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 6/3010:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 4/3![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:29 pm
DEN
- GEG
1 stop23h 00m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2110:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/6![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 4/3. 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.
Sun 5/1010:22 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/3![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:34 pm
DEN
- GEG
1 stop8h 55m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$90
This Frontier deal was found by Cheapflights users on 4/2. 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 5/2410:25 am
DEN
- BOI
Nonstop2h 05m
Frontier
Deal found 4/2![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Wed 6/310:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Deal found 4/3![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:29 pm
DEN
- GEG
1 stop22h 28m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$104
This Booking.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:12 am
DEN
- GEG
Nonstop2h 26m
Frontier
Deal found 4/7![Frontier logo]()
$110
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 April 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $57 (Frontier) |
Popular in | March |
Cheapest in | February |
Average price | $262 |
Good round-trip deal | $220 or less |
Good one-way deal | $184 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 April 7, 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
DenverTwin Falls
DEN - TWF
DENTWF
Denver Intl
Thu 4/23
10:29 pm-12:00 pm
1 stop13h 31m
Twin Falls Joslin
Mon 4/27
1:40 pm-11:30 am
1 stop21h 50m
$233
Quickest round-trip
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Fri 5/15
8:10 am-9:55 am
Nonstop1h 45m
Idaho Falls Fanning Field
Fri 5/22
2:30 pm-4:18 pm
Nonstop1h 48m
$249
DenverTwin Falls
DEN - TWF
DENTWF
Denver Intl
Thu 4/23
6:00 am-12:00 pm
2 stops30h 00m
Twin Falls Joslin
Mon 5/4
1:40 pm-3:25 am
1 stop13h 45m
$251
DenverTwin Falls
DEN - TWF
DENTWF
Denver Intl
Fri 4/24
6:00 am-12:00 pm
1 stop6h 00m
Twin Falls Joslin
Mon 5/4
1:40 pm-6:07 pm
2 stops28h 27m
$258
DenverTwin Falls
DEN - TWF
DENTWF
Denver Intl
Sat 4/25
11:59 pm-12:00 pm
2 stops36h 01m
Twin Falls Joslin
Mon 5/4
1:40 pm-3:25 am
1 stop13h 45m
$260
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Tue 6/23
5:40 am-9:32 am
1 stop3h 52m
Boise Air Term. Gowen Fld
Tue 6/30
4:00 pm-11:59 pm
1 stop7h 59m
$263
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 5/2
2:20 pm-4:15 pm
Nonstop1h 55m
Boise Air Term. Gowen Fld
Wed 5/6
5:15 pm-9:30 pm
1 stop4h 15m
$263
DenverWest Yellowstone
DEN - WYS
DENWYS
Denver Intl
Sat 5/16
2:15 pm-4:07 pm
Nonstop1h 52m
West Yellowstone
Sun 5/17
2:03 pm-3:47 pm
Nonstop1h 44m
$264
DenverSpokane
DEN - GEG
DENGEG
Denver Intl
Tue 5/5
1:02 pm-10:20 pm
1 stop10h 18m
Spokane
Wed 5/6
10:30 am-11:59 pm
1 stop12h 29m
$265
DenverIdaho Falls
DEN - IDA
DENIDA
Denver Intl
Fri 5/8
8:10 am-9:55 am
Nonstop1h 45m
Idaho Falls Fanning Field
Sun 5/10
5:26 pm-7:21 pm
Nonstop1h 55m
$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-GEG
DEN-IDA
DEN-TWF
DEN-WYS
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-TWF
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 $36). 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 April 7, 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 38% on your trip compared to booking a flight at noon.
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 April 4, 2026.
Travelers seeking maximum savings on their Denver to Idaho flight should consider departing on Wednesday 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 April 7, 2026.
The most flights from DEN to USID are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Denver 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 April 7, 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
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from 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 April 7, 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 April 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$40 | Average$88 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$54 | Average$125 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$353 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$350 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$294 | FlexibilityNo cancel fee | On-time63% |