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: 50 minutes ago
Flight Type One Way/Economy
Nov 2026
From$39*
Viewed: 1 day ago
Flight Type One Way/Economy
Dec 2026
From$39*
Viewed: 20 hours ago
Flight Type One Way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $39
Displaying fares for October-2026
  • BIL–SDY, 10/30/2026: From $49
    30

    Fr

    OCT

  • BIL–SDY, 10/31/2026: From $39
    31

    Sa

  • BIL–SDY, 11/01/2026: From $39
    01

    Su

    NOV

  • BIL–SDY, 11/02/2026: From $49
    02

    Mo

  • BIL–SDY, 11/03/2026: From $39
    03

    Tu

  • BIL–SDY, 11/04/2026: From $39
    04

    We

  • BIL–SDY, 11/05/2026: From $39
    05

    Th

  • BIL–SDY, 11/06/2026: From $39
    06

    Fr

  • BIL–SDY, 11/07/2026: From $39
    07

    Sa

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

    Su

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    09

    Mo

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

    Tu

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

    We

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    12

    Th

  • BIL–SDY, 11/13/2026: From $39
    13

    Fr

  • BIL–SDY, 11/14/2026: From $39
    14

    Sa

  • BIL–SDY, 11/15/2026: From $39
    15

    Su

  • BIL–SDY, 11/16/2026: From $39
    16

    Mo

  • BIL–SDY, 11/17/2026: From $39
    17

    Tu

  • BIL–SDY, 11/18/2026: From $39
    18

    We

  • BIL–SDY, 11/19/2026: From $39
    19

    Th

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    20

    Fr

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    21

    Sa

  • BIL–SDY, 11/22/2026: From $39
    22

    Su

  • BIL–SDY, 11/23/2026: From $39
    23

    Mo

  • BIL–SDY, 11/24/2026: From $39
    24

    Tu

  • BIL–SDY, 11/25/2026: From $39
    25

    We

  • BIL–SDY, 11/26/2026: From $39
    26

    Th

  • BIL–SDY, 11/27/2026: From $39
    27

    Fr

  • BIL–SDY: cmp-view-offers-disclaimer. Find Offers
    28

    Sa

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

    Su

    • Range$39-$49

    *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: 11/13/2026

    Fares From

    $39

    Viewed: 21 hours ago

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

    Fares From

    $39

    Viewed: 21 hours ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/17/2026

    Fares From

    $39

    Viewed: 21 hours ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/19/2026

    Fares From

    $39

    Viewed: 21 hours ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/25/2026

    Fares From

    $39

    Viewed: 17 hours ago

    Billings (BIL)Sidney, MT (SDY)One-way
    /
    Economy    		Depart: 11/22/2026

    Fares From

    $39

    Viewed: 17 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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