$66+ Cheap flights from Boise to Denver (BOI - 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Boise 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Denver Intl are usually found in February or January, booked 65 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Boise to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boise to DenverExplore the most affordable flight options available from Boise to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Boise to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Southwest deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/111:55 pm -
2 stops7h 35m
Sun 12/138:35 am -
Nonstop2h 05m
Deal found 10/24![Southwest logo]()
$228
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/112:56 pm -
1 stop5h 30m
Mon 12/77:40 am -
1 stop5h 29m
Deal found 10/21![Alaska Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:15 pm -
1 stop5h 53m
Wed 12/1610:29 pm -
2 stops42h 19m
Deal found 10/25![Frontier logo]()
$233
This Orbitz deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/196:37 am -
1 stop7h 21m
Tue 11/241:03 pm -
1 stop5h 57m
Deal found 10/21![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/76:15 pm -
1 stop5h 53m
Thu 12/1010:42 pm -
2 stops18h 38m
Deal found 10/22![Frontier logo]()
$237
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/33:30 pm -
Nonstop1h 40m
Mon 12/79:00 am -
Nonstop2h 00m
Deal found 10/23![Southwest logo]()
$239
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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.
Sat 11/217:55 pm -
1 stop4h 59m
Sun 11/221:03 pm -
1 stop5h 57m
Deal found 10/23![Frontier logo]()
$240
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/101:05 pm -
Nonstop1h 45m
Thu 11/125:30 am -
1 stop6h 20m
Deal found 10/21![Southwest logo]()
$241
This Expedia deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/34:10 pm -
1 stop7h 05m
Wed 12/910:29 pm -
2 stops18h 51m
Deal found 10/24![Multiple Airlines logo]()
$244
Best flights from Boise to DenverDiscover carefully curated flight deals from Boise to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Boise to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/106:30 am -
Nonstop1h 58m
Thu 11/127:41 am -
Nonstop2h 11m
Deal found 10/21![United Airlines logo]()
$231
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 1/711:55 am -
Nonstop1h 50m
Mon 1/118:50 am -
Nonstop2h 10m
Deal found 10/21![Southwest logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/1612:49 pm -
2 stops11h 10m
Mon 11/236:51 pm -
1 stop14h 53m
Deal found 10/25![Alaska Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/101:40 pm -
2 stops9h 00m
Thu 11/125:30 am -
1 stop6h 20m
Deal found 10/21![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/31:05 pm -
Nonstop1h 45m
Sun 12/65:00 am -
1 stop4h 50m
Deal found 10/21![Southwest logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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 12/265:35 am -
1 stop5h 16m
Wed 12/309:42 pm -
1 stop12h 02m
Deal found 10/25![Alaska Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 2/54:15 pm -
Nonstop1h 50m
Sun 2/79:00 pm -
Nonstop2h 10m
Deal found 10/21![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 10/25. 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.
Thu 12/101:40 pm -
2 stops7h 25m
Mon 12/142:25 pm -
2 stops7h 30m
Deal found 10/25![Southwest logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/231:02 pm -
1 stop7h 55m
Mon 11/306:51 pm -
1 stop19h 28m
Deal found 10/23![Alaska Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/104:25 pm -
1 stop6h 00m
Sun 12/134:55 pm -
2 stops7h 15m
Deal found 10/23![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 10/25. 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.
Sat 11/1411:30 am -
1 stop4h 20m
Tue 11/171:10 pm -
Nonstop2h 00m
Deal found 10/25![Southwest logo]()
$315
Last-minute flights from Boise to DenverDiscover last-minute flight deals from Boise to Denver. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Denver. Data last updated October 26, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:49 pm -
1 stop8h 55m
Thu 11/127:30 am -
1 stop6h 24m
Deal found 10/23![Frontier logo]()
$256
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/101:05 pm -
Nonstop1h 45m
Thu 11/125:30 am -
1 stop6h 20m
Deal found 10/21![Southwest logo]()
$241
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/111:40 pm -
2 stops7h 25m
Wed 11/183:10 pm -
2 stops8h 05m
Deal found 10/23![Southwest logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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 11/148:30 am -
1 stop28h 27m
Tue 11/173:25 pm -
1 stop8h 24m
Deal found 10/25![Alaska Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/161:00 pm -
1 stop22h 59m
Wed 11/1810:29 pm -
2 stops15h 25m
Deal found 10/22![Multiple Airlines logo]()
$259
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/175:44 pm -
Nonstop1h 58m
Thu 11/197:41 am -
Nonstop2h 11m
Deal found 10/22![United Airlines logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/1710:49 am -
1 stop6h 50m
Fri 11/202:56 pm -
1 stop5h 13m
Deal found 10/23![Alaska Airlines logo]()
$255
This Orbitz deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/196:37 am -
1 stop7h 21m
Tue 11/241:03 pm -
1 stop5h 57m
Deal found 10/21![Multiple Airlines logo]()
$236
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/195:44 pm -
Nonstop1h 58m
Sat 11/217:27 pm -
Nonstop2h 07m
Deal found 10/24![United Airlines logo]()
$253
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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.
Sat 11/217:55 pm -
1 stop4h 59m
Sun 11/221:03 pm -
1 stop5h 57m
Deal found 10/23![Frontier logo]()
$240
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:55 pm -
1 stop4h 59m
Tue 11/249:34 am -
1 stop9h 26m
Deal found 10/23![Frontier logo]()
$260
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/241:19 pm -
1 stop3h 51m
Tue 12/85:25 am -
1 stop5h 19m
Deal found 10/22![Delta logo]()
$251
One-way flights from Boise to DenverSearch for one-way flight options from Boise to Denver. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Boise to Denver. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Southwest deal was found by Cheapflights users on 10/25. 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.
Thu 12/173:55 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Tue 11/247:55 pm -
1 stop4h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$78
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:44 pm -
Nonstop1h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:15 pm -
1 stop17h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$84
This Jetabroad deal was found by Cheapflights users on 10/25. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/257:53 pm -
1 stop13h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$87
This Delta deal was found by Cheapflights users on 10/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/171:07 pm -
1 stop4h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/47:18 pm -
1 stop18h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$91
This Southwest deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/241:40 pm -
2 stops7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Southwest logo]()
$94
This Orbitz deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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.
Mon 12/76:15 pm -
1 stop15h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/77:18 pm -
1 stop17h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$99
This Frontier deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 stop8h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$102
This Southwest deal was found by Cheapflights users on 10/25. 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.
Sun 12/134:40 pm -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$109
Find flight deals from Boise to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $228 (Southwest) |
One-way from | $66 (Southwest) |
Popular in | September |
Cheapest in | February |
Average price | $320 |
Good round-trip deal | $407 or less |
Good one-way deal | $276 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise 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 26, 2026.
Use the filters below to find and compare flights from Boise 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
Thu 12/24
3:30 pm-5:10 pm
Nonstop1h 40m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Fri 12/18
6:00 am-9:43 am
1 stop3h 43m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$89
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Mon 11/9
5:44 pm-7:42 pm
Nonstop1h 58m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$116
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Thu 12/10
1:05 pm-2:50 pm
Nonstop1h 45m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$116
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Mon 11/23
5:44 pm-7:42 pm
Nonstop1h 58m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$116
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sat 11/21
7:55 pm-10:06 am
2 stops38h 11m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$138
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Sun 11/15
6:00 am-11:05 am
1 stop5h 05m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$145
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Thu 11/26
7:00 am-4:37 pm
2 stops9h 37m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
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
Thu 11/12
7:41 am-9:52 am
Nonstop2h 11m
$231
BoiseDenver
BOI Boise Air Term. Gowen Fld - DEN Denver Intl
BOIDEN
Boise Air Term. Gowen Fld
Thu 1/7
11:55 am-1:45 pm
Nonstop1h 50m
Denver Intl
Mon 1/11
8:50 am-11:00 am
Nonstop2h 10m
$231
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Boise to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Denver in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Boise-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boise to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Boise with our price prediction graph.
BOI-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 Boise to Denver
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Airlines
How far ahead should I book a flight from Boise to Denver?
The price you pay for your flight from Boise to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Boise to Denver?
Currently, February is the cheapest month in which you can book a flight from Boise to Denver (average of $212). Flying from Boise to Denver in September 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 BOI to DEN?
Find hourly flight availability from Boise 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 26, 2026.
A simple way to save on the total cost of your ticket is to fly from Boise to Denver at noon. If you’re flexible enough to do this you can expect to save up to 53% on your trip compared to booking a flight in the evening.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated October 26, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Boise to Denver. 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
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Boise 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
Broomfield
Englewood
Golden
Wheat Ridge
Silverthorne
Fort Morgan
Limon
Greeley
Frisco
Winter Park
Black Hawk
Central City
Manitou Springs
Glendale
Cripple Creek
Evergreen
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Complete your trip
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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 26, 2026.
Search flights from Boise to Denver by cabin class
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Boise and Denver flights
Browse other Boise and Denver flight options. Last updated on October 26, 2026.
Other flights from Boise
Browse through other flights departing from Boise. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boise to Denver
Discover the top 4 airlines that operate flights from Boise 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 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$157 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$256 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$198 | Average$333 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$220 | Average$343 | FlexibilityNo cancel fee | On-time63% |