Flights from Boise, ID to Denver, CO

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Best Deals on Flights From Boise, ID (BOI) to Denver, CO (DEN)

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Aug 2026
No results for this month.
Sep 2026
from$88*
Last seen: 17 hours ago
One-way/Economy
Oct 2026
from$88*
Last seen: 21 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $88
Displaying fares for August-2026
  • BOI–DEN: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

    AUG

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    31

    Mon

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    SEP

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    02

    Wed

  • BOI–DEN, Sep 3, 2026: from $207
    03

    Thu

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    04

    Fri

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    05

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    06

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    07

    Mon

  • BOI–DEN, Sep 8, 2026: from $103
    08

    Tue

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    09

    Wed

  • BOI–DEN, Sep 10, 2026: from $149
    10

    Thu

  • BOI–DEN, Sep 11, 2026: from $149
    11

    Fri

  • BOI–DEN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

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    13

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    14

    Mon

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    15

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    16

    Wed

  • BOI–DEN, Sep 17, 2026: from $129
    17

    Thu

  • BOI–DEN, Sep 18, 2026: from $129
    18

    Fri

  • BOI–DEN: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • BOI–DEN, Sep 20, 2026: from $110
    20

    Sun

  • BOI–DEN, Sep 21, 2026: from $88
    21

    Mon

  • BOI–DEN: cmp-view-offers-disclaimer. Find Offers
    22

    Tue

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    23

    Wed

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    24

    Thu

  • BOI–DEN, Sep 25, 2026: from $110
    25

    Fri

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    26

    Sat

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    27

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    28

    Mon

  • BOI–DEN: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

    • Range$88-$207

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Boise, ID to Denver, CO on Frontier

    $
    Flights Deals from Boise, ID to Denver, CO on Frontier
    From
    To
    Boise, ID (BOI)Denver, CO (DEN)One-way
    /
    Discount Den Basic Fare    		Departing Jan 3, 2027

    From

    $219

    Last seen: 18 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Boise, ID Denver, CO

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