Cheap Flights from Boise, ID to Denver, CO from $71

Return flight: Denver – Boise

On Cheapflightsplus.com you will find 15 direct and 253 connecting flights from Boise to Denver. You can compare airfare deals from 6 airlines and multiple travel sites from $71, book and save on cheap plane tickets and last minute offers. Also check out BOI-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Boise to Denver Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $71 (one-way), $122 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Boise to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
05:00 — 07:05
05:00 — 07:05 UA5226 United Airlines
Boise — Denver
2h 5m
Find flight
from$137
05:00 — 07:05
05:00 — 07:05 UA5924 United Airlines
Boise — Denver
2h 5m
Find flight
from$142
05:00 — 07:05
05:00 — 07:05 UA4775 United Airlines
Boise — Denver
2h 5m
Find flight
from$145
06:30 — 08:27
06:30 — 08:27 UA532 United Airlines
Boise — Denver
1h 57m
Find flight
from$173
07:00 — 08:55
07:00 — 08:55 UA1782 United Airlines
Boise — Denver
1h 55m
Find flight
from$141
08:15 — 10:17
08:15 — 10:17 UA4704 United Airlines
Boise — Denver
2h 2m
Find flight
from$174
10:42 — 12:42
10:42 — 12:42 UA1228 United Airlines
Boise — Denver
2h
Find flight
from$146
10:42 — 12:42
10:42 — 12:42 UA598 United Airlines
Boise — Denver
2h
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from$310
10:45 — 12:41
10:45 — 12:41 UA213 United Airlines
Boise — Denver
1h 56m
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from$141
10:47 — 12:53
10:47 — 12:53 UA4679 United Airlines
Boise — Denver
2h 6m
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from$260
12:36 — 14:34
12:36 — 14:34 F93934 Frontier Airlines
Boise — Denver
1h 58m
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from$71
12:45 — 14:47
12:45 — 14:47 UA4733 United Airlines
Boise — Denver
2h 2m
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from$359
14:42 — 16:35
14:42 — 16:35 UA2173 United Airlines
Boise — Denver
1h 53m
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from$137
17:39 — 19:40
17:39 — 19:40 UA4637 United Airlines
Boise — Denver
2h 1m
Find flight
from$144
17:42 — 19:39
17:42 — 19:39 UA395 United Airlines
Boise — Denver
1h 57m
Find flight
from$145
06:30 — 11:55
06:35 — 07:14 AS929 Alaska Airlines
Boise — Seattle
49m stop
08:13 — 12:10 AS682 Alaska Airlines
Seattle — Denver
5h 25m
including layover
Find flight
from$122
06:35 — 14:06
06:35 — 07:14 AS929 Alaska Airlines
Boise — Seattle
3h 1m stop
10:15 — 14:06 AS535 Alaska Airlines
Seattle — Denver
7h 31m
including layover
Find flight
from$122
07:21 — 14:00
07:21 — 08:45 HA4759 Hawaiian Airlines
Boise — San Diego
1h 47m stop
10:32 — 14:00 HA6401 Hawaiian Airlines
San Diego — Denver
6h 39m
including layover
Find flight
from$105
07:21 — 14:00
07:21 — 08:45 AS909 Alaska Airlines
Boise — San Diego
1h 47m stop
10:32 — 14:00 AS1068 Alaska Airlines
San Diego — Denver
6h 39m
including layover
Find flight
from$114
08:47 — 23:59
08:47 — 09:20 HA4807 Hawaiian Airlines
Boise — Seattle
10h 57m stop
20:17 — 23:59 HA6652 Hawaiian Airlines
Seattle — Denver
15h 12m
including layover
Find flight
from$163
09:00 — 17:21
09:00 — 09:38 HA4781 Hawaiian Airlines
Boise — Seattle
3h 57m stop
13:35 — 17:21 HA6651 Hawaiian Airlines
Seattle — Denver
8h 21m
including layover
Find flight
from$194
09:00 — 17:21
09:00 — 09:38 AS3321 Alaska Airlines
Boise — Seattle
3h 57m stop
13:35 — 17:21 AS620 Alaska Airlines
Seattle — Denver
8h 21m
including layover
Find flight
from$202
11:19 — 21:46
11:19 — 11:52 HA4762 Hawaiian Airlines
Boise — Seattle
6h 7m stop
17:59 — 21:46 HA6654 Hawaiian Airlines
Seattle — Denver
10h 27m
including layover
Find flight
from$150
11:19 — 21:46
11:19 — 11:52 AS2148 Alaska Airlines
Boise — Seattle
6h 7m stop
17:59 — 21:46 AS1163 Alaska Airlines
Seattle — Denver
10h 27m
including layover
Find flight
from$160
13:00 — 23:59
13:00 — 13:38 AS3448 Alaska Airlines
Boise — Seattle
6h 39m stop
20:17 — 23:59 AS642 Alaska Airlines
Seattle — Denver
10h 59m
including layover
Find flight
from$173
13:25 — 18:02
13:25 — 13:50 HA4757 Hawaiian Airlines
Boise — Portland
42m stop
14:32 — 18:02 HA6338 Hawaiian Airlines
Portland — Denver
4h 37m
including layover
Find flight
from$190
14:20 — 21:38
14:20 — 14:50 AS2397 Alaska Airlines
Boise — Seattle
3h 5m stop
17:55 — 21:38 AS524 Alaska Airlines
Seattle — Denver
7h 18m
including layover
Find flight
from$205
15:59 — 23:59
15:59 — 16:37 HA4745 Hawaiian Airlines
Boise — Seattle
3h 40m stop
20:17 — 23:59 HA6652 Hawaiian Airlines
Seattle — Denver
8h
including layover
Find flight
from$114
15:59 — 23:59
15:59 — 16:37 AS1015 Alaska Airlines
Boise — Seattle
3h 40m stop
20:17 — 23:59 AS642 Alaska Airlines
Seattle — Denver
8h
including layover
Find flight
from$124
16:50 — 23:59
16:50 — 17:26 HA4803 Hawaiian Airlines
Boise — Seattle
2h 51m stop
20:17 — 23:59 HA6652 Hawaiian Airlines
Seattle — Denver
7h 9m
including layover
Find flight
from$114
16:50 — 23:59
16:50 — 17:26 AS3002 Alaska Airlines
Boise — Seattle
2h 51m stop
20:17 — 23:59 AS642 Alaska Airlines
Seattle — Denver
7h 9m
including layover
Find flight
from$124
17:39 — 00:05
+1 day
14:40 — 15:25 AS1019 Alaska Airlines
Boise — Seattle
2h 14m stop
18:59 — 22:36 AS321 Alaska Airlines
Seattle — Denver
6h 26m
including layover
Find flight
from$144
18:01 — 15:59
+1 day
17:44 — 21:28 SY944 Sun Country Airlines
Boise — Minneapolis
17h 3m stop
15:12 — 16:23 SY655 Sun Country Airlines
Minneapolis — Denver
21h 58m
including layover
Find flight
from$209
18:55 — 09:19
+1 day
18:02 — 21:46 SY944 Sun Country Airlines
Boise — Minneapolis
9h 33m stop
07:30 — 08:39 SY651 Sun Country Airlines
Minneapolis — Denver
14h 24m
including layover
Find flight
from$209
20:21 — 11:55
+1 day
20:21 — 21:04 HA4763 Hawaiian Airlines
Boise — Seattle
10h 58m stop
08:02 — 11:55 HA6555 Hawaiian Airlines
Seattle — Denver
15h 34m
including layover
Find flight
from$150
20:21 — 11:55
+1 day
20:21 — 21:04 AS3316 Alaska Airlines
Boise — Seattle
10h 58m stop
08:02 — 11:55 AS682 Alaska Airlines
Seattle — Denver
15h 34m
including layover
Find flight
from$160
*Departure and arrival times - local. Updated on August 6, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Boise to Denver depends on and how to choose the most interesting flight option for you.

Distance between Boise and Denver is 1042 miles. Time difference between the cities is 0h. Airplanes depart 05:00 to 20:59 from 1 Boise airport and arrive 05:00 to 20:59 to 2 Denver airports. Average flight time is 2h.

  • The fastest flight 1h 53m
  • Average flight time 2h
  • The earliest flight 05:00
  • The latest flight 20:59
  • Distance 648 ml

The cheapest months to travel to Denver are june (from 71 $), may (from 91 $), october (from 105 $).

The most expensive months are november (from 218 $), december (from 185 $), february (from 148 $).

What is the lowest airfare Boise to Denver?

The cheapest plane ticket found by our users is $71. This airfare is for economy class on one-way F93934 flight by Frontier Airlines for June 29, 2025 which leaves Boise in Boise at 12:36 am and arrives at Denver Denver International at 14:34.

Economy class
$71
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Boise — Denver is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 113 departures per week at the price of from $ 114 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 1828.

Direct flights

There are 15 nonstop flights on the route. The fastest direct flight is UA2173 by United Airlines takes 1h 53m and the cheapest is F93934 by Frontier Airlines for $71.

  • F9 - Frontier Airlines
    from $71
    Find
  • UA - United Airlines
    from $137
    Find
See more direct flights

Connecting Flights

There are 253 flights with layovers on the route. The fastest connecting flight is HA4757 by Hawaiian Airlines takes 4h 37m and the cheapest is F93934 by Frontier Airlines for $105.

  • AS - Alaska Airlines
    from $114
    Find
  • SY - Sun Country Airlines
    from $209
    Find
  • HA - Hawaiian Airlines
    from $105
    Find
  • UA - United Airlines
    from $235
    Find
  • NK - Spirit Airlines
    from $212
    Find
See more connecting flights

Airports

You can fly from Boise to Denver from 1 airports (Boise).

Boise airports

  • Boise-BOI
    from $71
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Denver airports

  • Denver International-DEN
    Find
  • Arapahoe Co-APA
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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