$89+ Cheap flights from Idaho to Denver (DEN)
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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
Oct 31 — Nov 71
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Denver 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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Denver
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Cheapest flights from Idaho to DenverExplore the most affordable flight options available from Idaho to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 1, 2026.
Explore the most affordable flight options available from Idaho to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 1, 2026.
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:32 pm -
1 stop4h 53m
Tue 10/276:59 pm -
1 stop18h 48m
Deal found 9/26![Alaska Airlines logo]()
$197
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:51 pm -
1 stop18h 48m
Wed 12/910:48 pm -
1 stop12h 30m
Deal found 9/30![Multiple Airlines logo]()
$197
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:55 pm -
1 stop4h 59m
Tue 12/110:36 pm -
2 stops46h 18m
Deal found 9/30![Frontier logo]()
$201
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:20 pm -
Nonstop1h 50m
Sat 10/315:45 am -
1 stop4h 55m
Deal found 9/30![Southwest logo]()
$207
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.
Thu 11/56:00 am -
1 stop10h 05m
Sat 11/77:40 pm -
Nonstop2h 00m
Deal found 9/26![Southwest logo]()
$213
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:50 pm -
1 stop18h 59m
Wed 10/2110:44 pm -
2 stops15h 11m
Deal found 9/28![Frontier logo]()
$215
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.
Sat 11/75:30 am -
1 stop4h 45m
Sat 11/72:10 pm -
1 stop6h 20m
Deal found 9/28![Southwest logo]()
$217
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.
Mon 10/262:51 pm -
Nonstop1h 54m
Mon 11/28:45 pm -
Nonstop2h 14m
Deal found 9/26![United Airlines logo]()
$221
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:28 am -
1 stop13h 21m
Thu 12/1010:48 pm -
1 stop10h 50m
Deal found 9/30![Multiple Airlines logo]()
$222
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:28 am -
1 stop13h 21m
Wed 12/910:48 pm -
1 stop12h 30m
Deal found 9/30![Multiple Airlines logo]()
$223
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:51 pm -
1 stop18h 48m
Sat 12/52:50 pm -
1 stop20h 28m
Deal found 9/30![Multiple Airlines logo]()
$227
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:50 pm -
2 stops13h 25m
Mon 11/25:00 am -
1 stop4h 50m
Deal found 9/27![Southwest logo]()
$228
Best flights from Idaho to DenverDiscover carefully curated flight deals from Idaho to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 1, 2026.
Discover carefully curated flight deals from Idaho to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 1, 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.
Tue 11/103:30 pm -
Nonstop1h 40m
Tue 11/179:00 am -
Nonstop2h 00m
Deal found 9/26![Southwest logo]()
$197
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.
Fri 10/236:49 pm -
1 stop3h 51m
Mon 10/265:25 am -
1 stop5h 17m
Deal found 9/27![Delta logo]()
$283
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:30 pm -
Nonstop1h 50m
Mon 11/168:00 am -
Nonstop1h 53m
Deal found 9/30![United Airlines logo]()
$299
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.
Mon 10/196:50 pm -
2 stops13h 25m
Wed 10/216:05 am -
2 stops6h 45m
Deal found 9/28![Southwest logo]()
$233
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 12/511:51 am -
1 stop6h 35m
Wed 12/93:22 pm -
1 stop19h 47m
Deal found 9/29![Alaska Airlines logo]()
$506
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 12/74:10 pm -
Nonstop1h 49m
Sat 12/1211:55 am -
Nonstop1h 42m
Deal found 9/27![United Airlines logo]()
$299
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:50 pm -
Nonstop1h 50m
Mon 10/266:35 pm -
1 stop7h 10m
Deal found 9/27![Southwest logo]()
$273
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.
Thu 12/106:04 am -
1 stop3h 39m
Sat 12/126:11 pm -
1 stop3h 35m
Deal found 9/30![Delta logo]()
$317
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:10 pm -
Nonstop1h 49m
Thu 12/108:00 am -
Nonstop1h 51m
Deal found 9/30![United Airlines logo]()
$299
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 10/294:05 pm -
Nonstop1h 50m
Mon 11/28:35 am -
Nonstop2h 05m
Deal found 9/28![Southwest logo]()
$282
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.
Sat 11/711:45 am -
2 stops7h 50m
Mon 11/92:20 pm -
1 stop5h 30m
Deal found 9/26![Southwest logo]()
$288
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/212:51 pm -
Nonstop1h 54m
Fri 11/2711:38 am -
Nonstop2h 07m
Deal found 9/30![United Airlines logo]()
$338
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.
Tue 3/236:04 am -
1 stop3h 40m
Thu 4/156:25 pm -
1 stop3h 21m
Deal found 9/26![Delta logo]()
$387
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:30 am -
Nonstop1h 58m
Mon 11/307:25 pm -
Nonstop2h 07m
Deal found 9/30![United Airlines logo]()
$345
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.
Wed 11/116:00 am -
1 stop3h 40m
Mon 11/1610:45 am -
1 stop11h 14m
Deal found 9/26![Delta logo]()
$392
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:40 am -
Nonstop1h 45m
Mon 11/309:00 pm -
1 stop4h 35m
Deal found 9/30![Southwest logo]()
$339
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.
Fri 10/3011:48 am -
2 stops30h 13m
Tue 11/31:55 pm -
2 stops20h 56m
Deal found 9/28![Alaska Airlines logo]()
$516
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 12/26:59 pm -
1 stop4h 15m
Tue 12/85:25 am -
1 stop6h 52m
Deal found 9/30![Delta logo]()
$399
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:40 pm -
Nonstop1h 45m
Wed 12/98:00 am -
Nonstop1h 51m
Deal found 9/30![United Airlines logo]()
$389
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:55 pm -
2 stops32h 04m
Mon 11/161:55 pm -
2 stops25h 23m
Deal found 9/30![Alaska Airlines logo]()
$518
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 12/2412:17 pm -
1 stop5h 46m
Mon 12/288:00 am -
1 stop4h 35m
Deal found 9/28![Delta logo]()
$416
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:48 am -
1 stop10h 49m
Tue 10/207:07 am -
1 stop27h 59m
Deal found 9/30![Alaska Airlines logo]()
$519
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 10/224:05 pm -
Nonstop1h 54m
Sun 10/258:00 am -
Nonstop1h 53m
Deal found 9/29![United Airlines logo]()
$390
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:33 am -
1 stop6h 06m
Wed 11/111:55 pm -
2 stops44h 56m
Deal found 9/26![Alaska Airlines logo]()
$519
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/174:20 pm -
Nonstop1h 58m
Sat 1/211:45 am -
Nonstop1h 43m
Deal found 9/30![United Airlines logo]()
$454
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.
Sat 12/55:35 am -
1 stop4h 13m
Sun 12/612:49 pm -
1 stop23h 28m
Deal found 9/30![Delta logo]()
$509
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.
Fri 10/233:19 pm -
1 stop4h 15m
Mon 10/2610:45 am -
1 stop3h 50m
Deal found 9/30![Delta logo]()
$539
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.
Fri 10/232:38 pm -
Nonstop2h 02m
Mon 10/2611:45 am -
Nonstop2h 08m
Deal found 9/27![United Airlines logo]()
$519
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.
Thu 10/227:20 am -
1 stop4h 36m
Mon 10/268:20 am -
1 stop4h 00m
Deal found 9/30![Delta logo]()
$539
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.
Thu 11/122:34 pm -
Nonstop1h 56m
Sun 11/1511:45 am -
Nonstop2h 08m
Deal found 9/26![United Airlines logo]()
$519
Last-minute flights from Idaho to DenverDiscover last-minute flight deals from Idaho to Denver. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Denver. Data last updated October 1, 2026 and is based on user searches.
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.
Sat 10/1712:25 pm -
1 stop5h 25m
Mon 10/196:35 pm -
1 stop7h 10m
Deal found 9/26![Southwest logo]()
$217
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:50 pm -
1 stop18h 59m
Wed 10/2110:44 pm -
2 stops15h 11m
Deal found 9/28![Frontier logo]()
$215
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:32 pm -
1 stop4h 53m
Tue 10/276:59 pm -
1 stop18h 48m
Deal found 9/26![Alaska Airlines logo]()
$197
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.
Fri 10/235:51 pm -
Nonstop1h 52m
Fri 10/3011:46 am -
Nonstop1h 42m
Deal found 9/29![United Airlines logo]()
$299
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.
Mon 10/262:51 pm -
Nonstop1h 54m
Mon 11/28:45 pm -
Nonstop2h 14m
Deal found 9/26![United Airlines logo]()
$221
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:50 pm -
2 stops13h 25m
Mon 11/25:00 am -
1 stop4h 50m
Deal found 9/27![Southwest logo]()
$228
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.
Mon 10/266:50 pm -
2 stops13h 25m
Thu 10/295:55 am -
2 stops7h 25m
Deal found 9/29![Southwest logo]()
$233
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 pm -
2 stops28h 19m
Mon 11/29:10 am -
1 stop9h 30m
Deal found 9/30![Multiple Airlines logo]()
$238
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 pm -
2 stops28h 19m
Thu 10/2910:44 pm -
1 stop14h 50m
Deal found 9/30![Multiple Airlines logo]()
$241
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:50 pm -
2 stops18h 19m
Thu 10/297:30 am -
1 stop6h 24m
Deal found 9/28![Frontier logo]()
$250
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:20 pm -
Nonstop1h 50m
Sat 10/315:45 am -
1 stop4h 55m
Deal found 9/30![Southwest logo]()
$207
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 10/296:30 am -
Nonstop1h 58m
Mon 11/28:45 pm -
Nonstop2h 14m
Deal found 9/27![United Airlines logo]()
$245
One-way flights from Idaho to DenverSearch for one-way flight options from Idaho to Denver. Find affordable one-way fares based on user searches. Data last updated October 1, 2026.
Search for one-way flight options from Idaho to Denver. Find affordable one-way fares based on user searches. Data last updated October 1, 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.
Tue 12/296:56 pm -
1 stop5h 13m
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.
Mon 10/262:50 pm -
2 stops32h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$90
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:49 pm -
1 stop9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$95
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 10/264:20 pm -
1 stop5h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Alaska Airlines logo]()
$99
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.
Mon 10/267:45 pm -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$109
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.
Tue 10/276:15 am -
2 stops7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$114
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 10/195:30 pm -
Nonstop2h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$123
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.
Mon 10/199:33 pm -
2 stops35h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$142
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:33 pm -
1 stop12h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$184
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.
Fri 10/239:15 am -
1 stop7h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$219
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:33 am -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Alaska Airlines logo]()
$230
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:48 am -
1 stop10h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Alaska Airlines logo]()
$235
Find flight deals from Idaho to Denver
Keep the following information in mind while searching for Idaho to Denver flight deals. Data was last updated October 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Alaska Airlines) |
One-way from | $89 (Priceline) |
Popular in | September |
Cheapest in | February |
Average price | $295 |
Good round-trip deal | $391 or less |
Good one-way deal | $221 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Denver 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 October 1, 2026.
Use the filters below to find and compare flights from Idaho to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Mon 10/26
4:05 pm-5:55 pm
Nonstop1h 50m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Tue 11/10
6:30 am-8:28 am
Nonstop1h 58m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Wed 10/28
6:45 am-3:15 pm
1 stop8h 30m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Wed 11/11
1:40 pm-9:05 pm
2 stops7h 25m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$114
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Mon 10/19
9:33 pm-9:49 am
1 stop12h 16m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$154
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Wed 3/24
12:00 pm-7:31 pm
1 stop7h 31m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$164
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sat 3/27
6:00 am-10:39 am
1 stop4h 39m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$164
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Fri 11/6
6:30 am-8:28 am
Nonstop1h 58m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$165
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sun 3/28
6:00 am-10:39 am
1 stop4h 39m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sat 12/19
6:20 am-8:22 am
Nonstop2h 02m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Idaho with our price prediction graph.
BOI-DEN
IDA-DEN
SUN-DEN
PIH-DEN
LWS-DEN
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 Idaho to Denver
USID-DEN
BOI-DEN
IDA-DEN
SUN-DEN
PIH-DEN
What is the cheapest month to book a flight from Idaho to Denver?
Currently, February is the cheapest month in which you can book a flight from Idaho to Denver (average of $249). Flying from Idaho to Denver in July is currently the most expensive (average of $352). 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 ID to DEN?
Find hourly flight availability from Idaho to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 1, 2026.
When flying from Idaho to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 47% versus a flight in the morning.
Weekly flight availability from Idaho to Denver
Explore weekly flight availability from Idaho to Denver. 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 October 1, 2026.
The most flights from USID to DEN are scheduled on a Tuesday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Idaho to Denver?
Airfare is below average for this route at the moment.
Idaho to Denver flights typically cost between $208 and $374 in October.The cheapest round-trip price found within the last 5 days was $197 on Alaska Airlines (Oct 20-Oct 27).
How far ahead should I book a flight from Idaho to Denver?
To ensure you get the cheapest price possible for a flight from Idaho to Denver, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Black Hawk
Broomfield
Golden
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Greeley
Frisco
Winter Park
Limon
Englewood
Manitou Springs
Glendale
Cripple Creek
Evergreen
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Denver flight routes
Flights by cabin class
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Popular flights
Top destinations
Alternative routes for Idaho to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 1, 2026.
Search flights from Idaho to Denver by cabin class
Find flights from Idaho to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Denver flights
Browse other Idaho and Denver flight options. Last updated on October 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Idaho to Denver flights
Consider these flights traveling from Idaho to Denver.
Top 5 airlines flying from Idaho to Denver
Discover the top 5 airlines that operate flights from Idaho to Denver. 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 October 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$156 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$390 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$360 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$227 | Average$345 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$342 | FlexibilityNo cancel fee | On-time75% |