Billings (BIL) to Sidney, MT (SDY) Flight Deals from $39!

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Cape Air Tickets for Upcoming Billings (BIL) to Sidney, MT (SDY) Flights

Oct 2026
From$39*
Viewed: 21 hours ago
Flight Type One Way/Economy
Nov 2026
From$39*
Viewed: 9 hours ago
Flight Type One Way/Economy
Dec 2026
From$39*
Viewed: 3 hours ago
Flight Type One Way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $39
Displaying fares for October-2026
  • BIL–SDY, 10/10/2026: From $39
    10

    Sa

    OCT

  • BIL–SDY, 10/11/2026: From $39
    11

    Su

  • BIL–SDY, 10/12/2026: From $39
    12

    Mo

  • BIL–SDY, 10/13/2026: From $39
    13

    Tu

  • BIL–SDY, 10/14/2026: From $39
    14

    We

  • BIL–SDY, 10/15/2026: From $39
    15

    Th

  • BIL–SDY, 10/16/2026: From $39
    16

    Fr

  • BIL–SDY, 10/17/2026: From $39
    17

    Sa

  • BIL–SDY, 10/18/2026: From $39
    18

    Su

  • BIL–SDY, 10/19/2026: From $39
    19

    Mo

  • BIL–SDY, 10/20/2026: From $39
    20

    Tu

  • BIL–SDY, 10/21/2026: From $39
    21

    We

  • BIL–SDY, 10/22/2026: From $39
    22

    Th

  • BIL–SDY, 10/23/2026: From $39
    23

    Fr

  • BIL–SDY, 10/24/2026: From $39
    24

    Sa

  • BIL–SDY, 10/25/2026: From $39
    25

    Su

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    26

    Mo

  • BIL–SDY, 10/27/2026: From $39
    27

    Tu

  • BIL–SDY, 10/28/2026: From $39
    28

    We

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    29

    Th

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    30

    Fr

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    31

    Sa

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    01

    Su

    NOV

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    02

    Mo

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    03

    Tu

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    04

    We

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    05

    Th

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    06

    Fr

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    07

    Sa

  • BIL–SDY, 11/08/2026: From $39
    08

    Su

  • BIL–SDY, 11/09/2026: From $39
    09

    Mo

    • Range$39

    *Prices have been viewed by other users searching within the last 48 hours for flights on this route, and may not be currently available. Additional baggage charges and fees may apply. Other terms and conditions may apply.

    Find Billings to Sidney, MT plane ticket offers

    $
    Find Billings to Sidney, MT plane ticket offers
    From
    To
    Fare Type
    Dates
    Price
    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 10/18/2026

    Fares From

    $39

    Viewed: 9 hours ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/12/2026

    Fares From

    $39

    Viewed: 1 day ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/13/2026

    Fares From

    $39

    Viewed: 1 day ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/14/2026

    Fares From

    $39

    Viewed: 1 day ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 10/10/2026

    Fares From

    $39

    Viewed: 21 hours ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 10/23/2026

    Fares From

    $39

    Viewed: 21 hours ago

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.
    Billings (BIL) to Sidney, MT (SDY) Flight Deals

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