Flights from Billings to Austin from $ 389*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Billings (BIL) to Austin (AUS)

Mar 2026
From$ 389*
Viewed: 1 hour ago
RoundTrip|Economy
Apr 2026
From$ 594*
Viewed: 14 hours ago
RoundTrip|Economy
May 2026
No result for this month
$ 389
Displaying fares for March-2026
  • 23

    Mo

    MAR

  • 24

    Tu

  • 25

    We

  • 26

    Th

  • 27

    Fr

  • 28

    Sa

  • 29

    Su

  • 30

    Mo

  • 31

    Tu

  • 01

    We

    APR

  • 02

    Th

  • 03

    Fr

  • 04

    Sa

  • 05

    Su

  • 06

    Mo

  • 07

    Tu

  • 08

    We

  • 09

    Th

  • 10

    Fr

  • 11

    Sa

  • 12

    Su

  • 13

    Mo

  • 14

    Tu

  • 15

    We

  • 16

    Th

  • 17

    Fr

  • 18

    Sa

  • 19

    Su

  • 20

    Mo

  • 21

    Tu

  • 22

    We

    • Range$ 389-$ 594

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Billings (BIL) to Austin (AUS) flights

    $
    keyboard_arrow_down
    More United deals on Billings (BIL) to Austin (AUS) flights
    From
    To
    Fare Type
    Dates
    Price
    Billings (BIL)Austin (AUS)Roundtrip
    |
    Economy    		03/25/26 - 03/31/26

    from

    $ 389

    Viewed: 1 hour ago

    Billings (BIL)Austin (AUS)Roundtrip
    |
    Economy    		03/25/26 - 03/31/26

    from

    $ 479

    Viewed: 1 hour ago

    Billings (BIL)Austin (AUS)Roundtrip
    |
    Economy    		04/10/26 - 04/12/26

    from

    $ 594

    Viewed: 14 hours ago

    Billings (BIL)Austin (AUS)Roundtrip
    |
    Economy    		03/25/26 - 03/31/26

    from

    $ 750

    Viewed: 1 hour ago

    Billings (BIL)Austin (AUS)Roundtrip
    |
    Economy    		04/10/26 - 04/12/26

    from

    $ 855

    Viewed: 14 hours ago

    Billings (BIL)Austin (AUS)Roundtrip
    |
    Economy    		04/10/26 - 04/12/26

    from

    $ 865

    Viewed: 14 hours ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    Explore United Airlines's Top-Pick Destinations

    Explore more United flights