Flights from Denver, CO to Boise, ID

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

Oct 2026
from$145*
Last seen: 19 hours ago
One-way/Economy
Nov 2026
from$90*
Last seen: 14 hours ago
One-way/Economy
Dec 2026
from$91*
Last seen: 1 hour ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $90
Displaying fares for October-2026
  • DEN–BOI: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

    OCT

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    23

    Fri

  • DEN–BOI, Oct 24, 2026: from $220
    24

    Sat

  • DEN–BOI, Oct 25, 2026: from $214
    25

    Sun

  • DEN–BOI, Oct 26, 2026: from $214
    26

    Mon

  • DEN–BOI: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

  • DEN–BOI, Oct 28, 2026: from $145
    28

    Wed

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    29

    Thu

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    30

    Fri

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    31

    Sat

  • DEN–BOI, Nov 1, 2026: from $179
    01

    Sun

    NOV

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    02

    Mon

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    03

    Tue

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    04

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    05

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    06

    Fri

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    07

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    08

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    09

    Mon

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    10

    Tue

  • DEN–BOI: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

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    12

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    13

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    14

    Sat

  • DEN–BOI: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

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    16

    Mon

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    17

    Tue

  • DEN–BOI, Nov 18, 2026: from $90
    18

    Wed

  • DEN–BOI, Nov 19, 2026: from $95
    19

    Thu

  • DEN–BOI: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

  • DEN–BOI, Nov 21, 2026: from $91
    21

    Sat

    • Range$90-$220

    *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 Denver, CO to Boise, ID on Frontier

    $
    *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®.

    Denver, CO Boise, ID

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