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Cheap flights from Boise (BOI) to Denver (DEN)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Boise (BOI) to Denver (DEN)

How to find the cheapest flight from Boise (BOI) to Denver (DEN)
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How to find the cheapest flight from Boise (BOI) to Denver (DEN)
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How to find the cheapest flight from Boise (BOI) to Denver (DEN)
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Cheap flights from Boise to Denver in December 2025 , January 2026

25 Dec - 19 Jan $ 158.00
BOI
Boise
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
BOI
Boise
Pick dates
20 Dec - 09 Jan $ 218.00
BOI
Boise
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
BOI
Boise
Pick dates
18 Dec - 09 Jan $ 229.00
BOI
Boise
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
BOI
Boise
Pick dates

Last minute flights from Boise to Denver

25 Dec - 31 Dec $ 362.00
BOI
Boise
Hawaiian Airlines
DIRECT
DEN
Denver
DEN
Denver
Hawaiian Airlines
1 STOPS
BOI
Boise
Pick dates
20 Dec - 31 Dec $ 416.00
BOI
Boise
Alaska Airlines
DIRECT
DEN
Denver
DEN
Denver
Alaska Airlines
1 STOPS
BOI
Boise
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20 Dec - 31 Dec $ 527.00
BOI
Boise
Hawaiian Airlines
DIRECT
DEN
Denver
DEN
Denver
Hawaiian Airlines
1 STOPS
BOI
Boise
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One-way flights to Denver from Boise

12:38 PM - 12:38 PM
Frontier Airlines
0 Stops
2h 1m
BOI - DEN
$ 125
Kiwi
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12:54 PM - 12:54 PM
Frontier Airlines
0 Stops
2h 1m
BOI - DEN
$ 164
Kiwi
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2:49 PM - 2:49 PM
United Airlines
0 Stops
1h 56m
BOI - DEN
$ 347
Kiwi
Pick dates

How to find the cheapest flight from Boise (BOI) to Denver (DEN)

Related info for your journey
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How to find the cheapest flight from Boise (BOI) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boise (BOI) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.