$89+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Sep 30 — Oct 71
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Idaho with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from 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 August 31, 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 August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:05 am -
Nonstop1h 50m
Sat 9/2612:55 pm -
Nonstop1h 50m
Deal found 8/28![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 8/27. 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.
Thu 9/245:30 am -
1 stop4h 21m
Tue 9/296:44 pm -
1 stop3h 56m
Deal found 8/27![Delta logo]()
$217
This Orbitz deal was found by Cheapflights users on 8/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:50 pm -
1 stop15h 05m
Sun 9/272:50 pm -
1 stop24h 10m
Deal found 8/26![Frontier logo]()
$220
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:30 pm -
1 stop6h 40m
Tue 9/292:20 pm -
2 stops7h 05m
Deal found 8/26![Southwest logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 9/247:30 am -
1 stop6h 25m
Mon 9/282:50 pm -
2 stops18h 42m
Deal found 8/28![Frontier logo]()
$226
This Southwest deal was found by Cheapflights users on 8/27. 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 10/228:35 am -
2 stops7h 30m
Sat 10/241:30 pm -
2 stops9h 05m
Deal found 8/27![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:30 pm -
2 stops7h 00m
Thu 9/241:55 pm -
1 stop9h 15m
Deal found 8/28![Southwest logo]()
$228
This FlightHub deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:30 am -
1 stop6h 25m
Sun 9/202:50 pm -
1 stop19h 17m
Deal found 8/29![Frontier logo]()
$231
This CheapOair deal was found by Cheapflights users on 8/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:05 pm -
1 stop24h 50m
Sun 9/202:50 pm -
1 stop19h 17m
Deal found 8/27![Frontier logo]()
$232
This Expedia deal was found by Cheapflights users on 8/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:53 am -
1 stop4h 53m
Sat 10/317:19 am -
1 stop13h 53m
Deal found 8/27![Alaska Airlines logo]()
$266
This Southwest deal was found by Cheapflights users on 8/27. 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.
Tue 10/208:50 am -
Nonstop2h 25m
Wed 10/213:25 pm -
1 stop5h 35m
Deal found 8/27![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:08 pm -
1 stop5h 03m
Mon 9/217:24 pm -
1 stop14h 28m
Deal found 8/28![Alaska Airlines 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 August 31, 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 August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:15 pm -
Nonstop2h 00m
Wed 9/303:40 pm -
1 stop5h 45m
Deal found 8/26![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 8/26. 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 9/235:30 am -
1 stop4h 21m
Wed 9/306:00 am -
1 stop6h 09m
Deal found 8/26![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:40 am -
Nonstop1h 54m
Tue 9/295:30 pm -
Nonstop2h 01m
Deal found 8/26![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:31 pm -
1 stop11h 19m
Sat 10/317:19 am -
1 stop13h 53m
Deal found 8/30![Alaska Airlines logo]()
$283
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Wed 10/147:35 pm -
Nonstop2h 00m
Wed 10/215:00 am -
Nonstop2h 10m
Deal found 8/27![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 8/27. 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 10/106:00 am -
1 stop7h 18m
Tue 10/133:30 pm -
1 stop7h 25m
Deal found 8/27![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 8/27. 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 11/128:40 am -
Nonstop2h 35m
Fri 11/136:25 am -
1 stop6h 10m
Deal found 8/27![Southwest logo]()
$283
This Alaska Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:53 am -
1 stop5h 17m
Tue 10/207:20 am -
1 stop14h 52m
Deal found 8/29![Alaska Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:34 am -
Nonstop1h 56m
Sun 10/112:05 pm -
Nonstop1h 45m
Deal found 8/26![United Airlines logo]()
$283
This Alaska Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:20 am -
1 stop14h 09m
Mon 11/97:03 am -
1 stop28h 54m
Deal found 8/29![Alaska Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 8/27. 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.
Fri 11/134:30 pm -
1 stop8h 35m
Tue 11/172:15 pm -
2 stops7h 20m
Deal found 8/27![Southwest logo]()
$298
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:34 am -
Nonstop1h 56m
Sun 10/112:05 pm -
Nonstop1h 45m
Deal found 8/26![United Airlines logo]()
$283
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:34 am -
Nonstop1h 56m
Sun 10/112:05 pm -
Nonstop1h 45m
Deal found 8/26![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:35 am -
Nonstop2h 05m
Mon 11/161:05 pm -
Nonstop1h 45m
Deal found 8/29![Southwest logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 9/128:08 am -
1 stop5h 06m
Sat 9/194:27 pm -
1 stop18h 25m
Deal found 8/27![Alaska Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:40 pm -
Nonstop1h 44m
Sun 9/275:51 pm -
Nonstop1h 52m
Deal found 8/29![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:30 am -
1 stop5h 01m
Sun 9/277:00 pm -
1 stop3h 40m
Deal found 8/30![Delta logo]()
$397
This Southwest deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:10 am -
1 stop6h 50m
Mon 9/282:55 pm -
Nonstop1h 50m
Deal found 8/29![Southwest logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:35 pm -
Nonstop1h 41m
Sun 10/114:05 pm -
Nonstop1h 54m
Deal found 8/26![United Airlines logo]()
$294
This Alaska Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:49 pm -
1 stop11h 58m
Sun 12/137:00 am -
1 stop27h 34m
Deal found 8/30![Alaska Airlines logo]()
$361
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:05 pm -
1 stop5h 40m
Sun 10/255:00 am -
Nonstop1h 50m
Deal found 8/30![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 8/27. 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 10/166:42 pm -
1 stop5h 24m
Sun 10/189:15 am -
1 stop7h 32m
Deal found 8/27![Delta logo]()
$422
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:40 pm -
Nonstop1h 44m
Fri 10/164:05 pm -
Nonstop1h 54m
Deal found 8/26![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 8/27. 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.
Thu 10/18:05 am -
1 stop4h 18m
Sun 10/41:17 pm -
1 stop6h 23m
Deal found 8/27![Delta logo]()
$437
This United Airlines deal was found by Cheapflights users on 8/28. 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 1/97:18 pm -
Nonstop1h 58m
Wed 1/132:45 pm -
Nonstop1h 53m
Deal found 8/28![United Airlines logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:45 am -
2 stops27h 36m
Tue 11/33:55 pm -
2 stops21h 02m
Deal found 8/30![Alaska Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:28 pm -
1 stop5h 45m
Sun 10/412:14 pm -
1 stop6h 26m
Deal found 8/28![Delta logo]()
$446
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Wed 9/231:30 pm -
Nonstop2h 36m
Mon 9/285:00 am -
Nonstop2h 23m
Deal found 8/27![United Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/113:04 pm -
1 stop18h 42m
Tue 9/1510:28 am -
1 stop7h 42m
Deal found 8/27![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:28 pm -
1 stop5h 40m
Thu 10/112:14 pm -
1 stop3h 48m
Deal found 8/29![Delta logo]()
$456
Last-minute flights from Denver to IdahoDiscover last-minute flight deals from Denver to Idaho. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Idaho. Data last updated August 31, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 8/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:05 pm -
1 stop24h 50m
Sun 9/202:50 pm -
1 stop19h 17m
Deal found 8/27![Frontier logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:08 pm -
1 stop5h 03m
Mon 9/217:24 pm -
1 stop14h 28m
Deal found 8/28![Alaska Airlines logo]()
$269
This FlightHub deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:30 am -
1 stop6h 25m
Sun 9/202:50 pm -
1 stop19h 17m
Deal found 8/29![Frontier logo]()
$231
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:05 am -
Nonstop1h 50m
Sat 9/2612:55 pm -
Nonstop1h 50m
Deal found 8/28![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:30 pm -
2 stops7h 00m
Thu 9/241:55 pm -
1 stop9h 15m
Deal found 8/28![Southwest logo]()
$228
This Southwest deal was found by Cheapflights users on 8/27. 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.
Tue 9/225:00 pm -
1 stop6h 10m
Mon 9/286:30 am -
Nonstop2h 15m
Deal found 8/27![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 8/27. 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.
Wed 9/239:00 am -
Nonstop2h 15m
Wed 9/3010:55 am -
1 stop10h 15m
Deal found 8/27![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 8/27. 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.
Thu 9/245:30 am -
1 stop4h 21m
Tue 9/296:44 pm -
1 stop3h 56m
Deal found 8/27![Delta logo]()
$217
This Orbitz deal was found by Cheapflights users on 8/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:50 pm -
1 stop15h 05m
Sun 9/272:50 pm -
1 stop24h 10m
Deal found 8/26![Frontier logo]()
$220
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:30 pm -
1 stop6h 40m
Tue 9/292:20 pm -
2 stops7h 05m
Deal found 8/26![Southwest logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 9/247:30 am -
1 stop6h 25m
Mon 9/282:50 pm -
2 stops18h 42m
Deal found 8/28![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 9/2410:50 pm -
1 stop13h 08m
Sun 9/278:20 pm -
1 stop15h 51m
Deal found 8/28![Multiple Airlines logo]()
$276
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 August 31, 2026.
Search for one-way flight options from Denver to Idaho. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Priceline deal was found by Cheapflights users on 8/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:30 am -
1 stop6h 25m
Deal found 8/27![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:10 pm -
2 stops48h 44m
Deal found 8/27![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Wed 10/281:10 pm -
2 stops24h 44m
Deal found 8/26![Frontier logo]()
$95
This CheapOair deal was found by Cheapflights users on 8/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:49 pm -
1 stop15h 06m
Deal found 8/28![Frontier logo]()
$96
This Southwest deal was found by Cheapflights users on 8/27. 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 9/267:30 pm -
Nonstop2h 05m
Deal found 8/27![Southwest logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Wed 10/141:10 pm -
2 stops24h 45m
Deal found 8/28![Frontier logo]()
$103
This Orbitz deal was found by Cheapflights users on 8/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:29 am -
Nonstop2h 00m
Deal found 8/27![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:44 pm -
2 stops39h 11m
Deal found 8/27![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Wed 10/281:10 pm -
2 stops30h 28m
Deal found 8/26![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Wed 11/42:14 pm -
2 stops29h 59m
Deal found 8/28![Multiple Airlines logo]()
$127
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 9/267:25 pm -
Nonstop2h 24m
Deal found 8/27![United Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:42 pm -
2 stops21h 37m
Deal found 8/27![Multiple Airlines logo]()
$131
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 August 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Southwest) |
One-way from | $89 (Priceline) |
Popular in | July |
Cheapest in | February |
Average price | $282 |
Good round-trip deal | $267 or less |
Good one-way deal | $163 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 7,457,451 searches. Data last updated August 31, 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 Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Wed 9/23
9:15 pm-11:15 pm
Nonstop2h 00m
Boise Air Term. Gowen Fld
Wed 9/30
3:40 pm-9:25 pm
1 stop5h 45m
$207
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Wed 9/23
5:30 am-9:51 am
1 stop4h 21m
Boise Air Term. Gowen Fld
Wed 9/30
6:00 am-12:09 pm
1 stop6h 09m
$217
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Thu 9/24
7:40 am-9:34 am
Nonstop1h 54m
Boise Air Term. Gowen Fld
Tue 9/29
5:30 pm-7:31 pm
Nonstop2h 01m
$277
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Wed 10/14
7:35 pm-9:35 pm
Nonstop2h 00m
Boise Air Term. Gowen Fld
Wed 10/21
5:00 am-7:10 am
Nonstop2h 10m
$277
DenverSpokane
DEN Denver Intl - GEG Spokane
DENGEG
Denver Intl
Sat 10/10
6:00 am-12:18 pm
1 stop7h 18m
Spokane
Tue 10/13
3:30 pm-11:55 pm
1 stop7h 25m
$277
DenverSpokane
DEN Denver Intl - GEG Spokane
DENGEG
Denver Intl
Wed 10/28
12:31 pm-10:50 pm
1 stop11h 19m
Spokane
Sat 10/31
7:19 am-10:12 pm
1 stop13h 53m
$283
DenverSpokane
DEN Denver Intl - GEG Spokane
DENGEG
Denver Intl
Thu 11/12
8:40 am-10:15 am
Nonstop2h 35m
Spokane
Fri 11/13
6:25 am-1:35 pm
1 stop6h 10m
$283
DenverWest Yellowstone
DEN Denver Intl - WYS West Yellowstone
DENWYS
Denver Intl
Sat 10/10
11:34 am-1:30 pm
Nonstop1h 56m
West Yellowstone
Sun 10/11
2:05 pm-3:50 pm
Nonstop1h 45m
$283
DenverWest Yellowstone
DEN Denver Intl - WYS West Yellowstone
DENWYS
Denver Intl
Thu 10/8
11:34 am-1:30 pm
Nonstop1h 56m
West Yellowstone
Sun 10/11
2:05 pm-3:50 pm
Nonstop1h 45m
$283
DenverWest Yellowstone
DEN Denver Intl - WYS West Yellowstone
DENWYS
Denver Intl
Fri 10/9
11:34 am-1:30 pm
Nonstop1h 56m
West Yellowstone
Sun 10/11
2:05 pm-3:50 pm
Nonstop1h 45m
$287
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-TWF
DEN-JAC
DEN-PIH
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-TWF
DEN-JAC
What is the cheapest month to book a flight from Denver to Idaho?
Currently, February is the cheapest month in which you can book a flight from Denver to Idaho (average of $185). Flying from Denver to Idaho in June is currently the most expensive (average of $353). 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 August 31, 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 19% 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 August 31, 2026.
The most flights from DEN to USID are scheduled on a Sunday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from Denver to Idaho?
Airfare is below average for this route at the moment.
Denver to Idaho flights typically cost between $213 and $367 in September.The cheapest round-trip price found within the last 5 days was $197 on Southwest (Sep 22-Sep 26).
How far ahead should I book a flight from Denver to Idaho?
Booking 80 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 August 29, 2026.
Travelers seeking maximum savings on their Denver to Idaho flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday mornings 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 August 31, 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.
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
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 August 31, 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 4 airlines flying from Denver to Idaho
Discover the top 4 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 7,457,451 searches. Data last updated August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$136 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$179 | Average$379 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$339 | FlexibilityNo cancel fee | On-time63% |