Flights from Boston to Phoenix from $ 222*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Boston (BOS) to Phoenix (PHX)

Mar 2026
From$ 312*
Viewed: 16 hours ago
RoundTrip|Economy
Apr 2026
From$ 222*
Viewed: 16 hours ago
RoundTrip|Economy
May 2026
From$ 257*
Viewed: 16 hours ago
RoundTrip|Economy
$ 222
$ 803
Displaying fares for March-2026
  • 22

    Su

    MAR

  • 23

    Mo

  • 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

    • Range$ 222-$ 803

    *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 Boston (BOS) to Phoenix (PHX) flights

    $
    keyboard_arrow_down
    More United deals on Boston (BOS) to Phoenix (PHX) flights
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/05/26 - 04/08/26

    from

    $ 222

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/04/26 - 04/08/26

    from

    $ 222

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/04/26 - 04/07/26

    from

    $ 227

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/08/26 - 04/15/26

    from

    $ 237

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/07/26 - 04/14/26

    from

    $ 242

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/11/26 - 04/15/26

    from

    $ 252

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		04/05/26 - 04/09/26

    from

    $ 256

    Viewed: 16 hours ago

    Boston (BOS)Phoenix (PHX)Roundtrip
    |
    Economy    		06/02/26 - 06/06/26

    from

    $ 257

    Viewed: 16 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