$89+ Cheap flights from Denver (DEN) to Idaho
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Oct 30 — Nov 61
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Idaho with Cheapflights
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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 September 30, 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 September 30, 2026.
This Southwest deal was found by Cheapflights users on 9/29. 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.
Tue 10/278:55 am -
1 stop4h 50m
Tue 11/31:05 pm -
Nonstop1h 45m
Deal found 9/29![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 9/29. 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.
Tue 10/204:00 pm -
2 stops7h 15m
Wed 10/2112:55 pm -
Nonstop1h 50m
Deal found 9/29![Southwest logo]()
$212
This Delta deal was found by Cheapflights users on 9/26. 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.
Sat 10/177:15 am -
1 stop3h 27m
Tue 10/2011:32 am -
1 stop5h 24m
Deal found 9/26![Delta logo]()
$217
This Justfly.com deal was found by Cheapflights users on 9/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 am -
1 stop6h 55m
Mon 10/262:50 pm -
1 stop21h 52m
Deal found 9/28![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1010:48 pm -
1 stop10h 50m
Mon 12/147:58 pm -
1 stop13h 18m
Deal found 9/26![Multiple Airlines logo]()
$228
This Southwest deal was found by Cheapflights users on 9/28. 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.
Thu 10/225:55 am -
2 stops7h 25m
Mon 10/266:50 pm -
2 stops13h 25m
Deal found 9/28![Southwest logo]()
$233
This CheapOair deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:08 am -
1 stop14h 46m
Sun 12/69:51 pm -
1 stop26h 17m
Deal found 9/29![Frontier logo]()
$243
This Expedia deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:50 pm -
1 stop20h 10m
Tue 11/247:55 pm -
1 stop13h 48m
Deal found 9/25![Frontier logo]()
$248
This Expedia deal was found by Cheapflights users on 9/27. 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.
Fri 11/61:55 pm -
1 stop8h 44m
Tue 11/106:43 pm -
1 stop18h 14m
Deal found 9/27![Alaska Airlines logo]()
$253
This Expedia deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:30 am -
1 stop6h 24m
Sun 11/152:49 pm -
1 stop21h 53m
Deal found 9/28![Frontier logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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.
Fri 10/305:57 pm -
1 stop6h 02m
Mon 11/212:49 pm -
1 stop9h 49m
Deal found 9/29![Alaska Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:37 pm -
2 stops14h 57m
Mon 11/27:30 pm -
1 stop22h 40m
Deal found 9/29![Multiple Airlines logo]()
$268
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 September 30, 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 September 30, 2026.
This Southwest deal was found by Cheapflights users on 9/26. 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.
Mon 10/268:05 pm -
1 stop5h 40m
Mon 11/25:35 am -
2 stops7h 15m
Deal found 9/26![Southwest logo]()
$222
This United Airlines deal was found by Cheapflights users on 9/29. 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 11/267:41 am -
Nonstop2h 11m
Mon 11/305:44 pm -
Nonstop1h 58m
Deal found 9/29![United Airlines logo]()
$315
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Mon 10/266:59 pm -
2 stops20h 24m
Mon 11/24:24 pm -
1 stop5h 02m
Deal found 9/27![Alaska Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 9/27. 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.
Tue 10/276:00 pm -
1 stop4h 10m
Tue 11/31:05 pm -
1 stop3h 51m
Deal found 9/27![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:55 pm -
Nonstop2h 05m
Tue 11/1011:25 am -
1 stop6h 15m
Deal found 9/25![Southwest logo]()
$273
This Southwest deal was found by Cheapflights users on 9/29. 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 11/612:15 pm -
2 stops8h 55m
Sat 11/71:45 pm -
1 stop5h 50m
Deal found 9/29![Southwest logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Sun 10/258:00 am -
Nonstop1h 53m
Sun 11/110:35 am -
Nonstop1h 50m
Deal found 9/26![United Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 9/29. 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 10/308:35 am -
2 stops7h 30m
Mon 11/25:35 am -
2 stops7h 15m
Deal found 9/29![Southwest logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/137:53 am -
1 stop5h 17m
Sat 10/174:18 pm -
1 stop6h 19m
Deal found 9/28![Alaska Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Mon 10/263:55 pm -
Nonstop2h 08m
Mon 11/25:44 pm -
Nonstop1h 58m
Deal found 9/27![United Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 9/29. 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.
Tue 11/173:10 pm -
2 stops8h 05m
Mon 11/235:35 am -
1 stop5h 00m
Deal found 9/29![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 9/29. 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.
Wed 10/288:20 am -
1 stop4h 02m
Sun 11/11:05 pm -
2 stops23h 01m
Deal found 9/29![Delta logo]()
$423
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Wed 11/258:00 am -
Nonstop1h 53m
Sun 11/299:40 pm -
Nonstop1h 50m
Deal found 9/29![United Airlines logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/67:04 pm -
1 stop19h 07m
Sat 3/136:48 pm -
1 stop16h 07m
Deal found 9/25![Alaska Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 9/29. 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 10/297:05 am -
2 stops15h 05m
Sat 10/316:00 am -
2 stops15h 52m
Deal found 9/29![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:55 am -
1 stop6h 20m
Tue 10/201:25 pm -
2 stops9h 30m
Deal found 9/25![Southwest logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/271:50 pm -
Nonstop1h 48m
Tue 11/34:30 pm -
Nonstop1h 50m
Deal found 9/28![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 9/29. 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.
Tue 10/277:25 pm -
2 stops16h 57m
Sat 10/316:00 am -
2 stops15h 52m
Deal found 9/29![Delta logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:31 pm -
2 stops26h 49m
Tue 11/33:55 pm -
2 stops21h 02m
Deal found 9/27![Alaska Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:00 am -
Nonstop1h 53m
Mon 11/24:30 pm -
Nonstop1h 50m
Deal found 9/27![United Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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 3/139:00 am -
1 stop9h 08m
Fri 3/1910:20 am -
1 stop9h 11m
Deal found 9/29![Alaska Airlines logo]()
$459
This Southwest deal was found by Cheapflights users on 9/29. 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.
Wed 11/255:05 am -
1 stop5h 00m
Thu 11/267:10 am -
2 stops7h 30m
Deal found 9/29![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/161:40 pm -
Nonstop1h 44m
Sat 10/244:05 pm -
Nonstop1h 54m
Deal found 9/26![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 9/28. 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.
Mon 10/198:20 am -
1 stop4h 19m
Fri 10/239:15 am -
1 stop7h 32m
Deal found 9/28![Delta logo]()
$529
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:45 am -
1 stop3h 50m
Sun 10/181:00 pm -
1 stop6h 34m
Deal found 9/26![Delta logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/147:33 am -
2 stops27h 18m
Tue 11/1711:33 am -
2 stops31h 46m
Deal found 9/27![Alaska Airlines logo]()
$553
This Delta deal was found by Cheapflights users on 9/28. 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.
Thu 12/175:25 am -
1 stop7h 14m
Fri 12/1812:19 pm -
1 stop7h 13m
Deal found 9/28![Delta logo]()
$541
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/163:39 pm -
1 stop6h 13m
Sun 10/187:00 am -
Nonstop2h 02m
Deal found 9/26![United Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 9/28. 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.
Wed 12/306:35 pm -
1 stop5h 24m
Sat 1/212:17 pm -
1 stop6h 11m
Deal found 9/28![Delta logo]()
$581
This Delta deal was found by Cheapflights users on 9/28. 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.
Thu 10/296:42 pm -
1 stop5h 24m
Sat 10/319:15 am -
1 stop7h 32m
Deal found 9/28![Delta logo]()
$584
Last-minute flights from Denver to IdahoDiscover last-minute flight deals from Denver to Idaho. Data last updated September 30, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Idaho. Data last updated September 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/26. 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.
Sat 10/177:15 am -
1 stop3h 27m
Mon 10/196:49 pm -
1 stop3h 51m
Deal found 9/26![Delta logo]()
$217
This Justfly.com deal was found by Cheapflights users on 9/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 am -
1 stop6h 55m
Mon 10/262:50 pm -
1 stop21h 52m
Deal found 9/28![Frontier logo]()
$223
This Southwest deal was found by Cheapflights users on 9/29. 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.
Tue 10/204:00 pm -
2 stops7h 15m
Wed 10/2112:55 pm -
Nonstop1h 50m
Deal found 9/29![Southwest logo]()
$212
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Wed 10/218:05 am -
Nonstop1h 48m
Sun 10/255:40 pm -
Nonstop1h 50m
Deal found 9/28![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 9/28. 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.
Thu 10/225:55 am -
2 stops7h 25m
Mon 10/266:50 pm -
2 stops13h 25m
Deal found 9/28![Southwest logo]()
$233
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Mon 10/267:25 pm -
Nonstop2h 07m
Mon 11/25:44 pm -
Nonstop1h 58m
Deal found 9/27![United Airlines logo]()
$274
This Southwest deal was found by Cheapflights users on 9/29. 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.
Tue 10/278:55 am -
1 stop4h 50m
Tue 11/31:05 pm -
Nonstop1h 45m
Deal found 9/29![Southwest logo]()
$207
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/278:00 am -
Nonstop1h 53m
Sun 11/155:30 pm -
Nonstop1h 50m
Deal found 9/29![United Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:37 pm -
2 stops14h 57m
Mon 11/27:30 pm -
1 stop22h 40m
Deal found 9/29![Multiple Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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.
Fri 10/305:57 pm -
1 stop6h 02m
Mon 11/212:49 pm -
1 stop9h 49m
Deal found 9/29![Alaska Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 9/29. 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 10/308:55 pm -
Nonstop2h 05m
Mon 11/23:55 pm -
Nonstop1h 50m
Deal found 9/29![Southwest logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:30 am -
1 stop6h 04m
Mon 11/27:30 pm -
2 stops28h 23m
Deal found 9/29![Multiple Airlines logo]()
$282
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 September 30, 2026.
Search for one-way flight options from Denver to Idaho. Find affordable one-way fares based on user searches. Data last updated September 30, 2026.
This Priceline deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:30 am -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:37 pm -
2 stops15h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 9/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:33 am -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Alaska Airlines logo]()
$92
This Booking.com deal was found by Cheapflights users on 9/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:05 pm -
1 stop24h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$95
This Southwest deal was found by Cheapflights users on 9/29. 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 10/242:15 pm -
Nonstop2h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Southwest logo]()
$99
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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.
Mon 11/27:59 pm -
1 stop17h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Alaska Airlines logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/2710:55 pm -
2 stops38h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$106
This Delta deal was found by Cheapflights users on 9/29. 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.
Sat 10/247:15 am -
1 stop3h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$109
This Frontier deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:10 am -
1 stop11h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:37 pm -
1 stop9h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$157
This Delta deal was found by Cheapflights users on 9/29. 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.
Mon 11/168:10 am -
1 stop4h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$183
This Delta deal was found by Cheapflights users on 9/30. 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 11/1812:53 pm -
2 stops11h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$189
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 September 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Southwest) |
One-way from | $89 (Priceline) |
Popular in | July |
Cheapest in | February |
Average price | $317 |
Good round-trip deal | $243 or less |
Good one-way deal | $173 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 September 30, 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
Thu 10/22
8:50 am-10:45 am
Nonstop1h 55m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Tue 1/5
9:00 am-11:00 am
Nonstop2h 00m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Wed 10/28
5:25 am-10:42 am
1 stop5h 17m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Sat 11/7
10:37 pm-8:12 am
1 stop9h 35m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$157
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Sat 3/27
9:00 am-4:11 pm
1 stop7h 11m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$164
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Fri 11/27
11:38 am-1:45 pm
Nonstop2h 07m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$165
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Fri 11/6
8:35 am-10:40 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$165
DenverBoise
DEN Denver Intl - BOI Boise Air Term. Gowen Fld
DENBOI
Denver Intl
Mon 1/4
8:35 am-10:40 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
DenverLewiston
DEN Denver Intl - LWS Lewiston Nez Perce Rgnl
DENLWS
Denver Intl
Mon 11/16
8:10 am-11:44 am
1 stop4h 34m
Lewiston Nez Perce Rgnl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$183
DenverLewiston
DEN Denver Intl - LWS Lewiston Nez Perce Rgnl
DENLWS
Denver Intl
Wed 11/18
6:33 pm-11:03 pm
1 stop5h 30m
Lewiston Nez Perce Rgnl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$183
Showing 1-10 of 57 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-LWS
DEN-SUN
DEN-TWF
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-LWS
DEN-SUN
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 $357). 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 September 30, 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 17% 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 September 30, 2026.
The most flights from DEN to USID are scheduled on a Tuesday (15 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Denver to Idaho?
Airfare is typical for this route at the moment.
Denver to Idaho flights typically cost between $158 and $361 in October.The cheapest round-trip price found within the last 5 days was $207 on Southwest (Oct 27-Oct 29).
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 September 26, 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. Tuesday at noon 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 September 30, 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
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
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 September 30, 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 September 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$135 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$334 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$185 | Average$381 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$346 | FlexibilityNo cancel fee | On-time63% |