Alaska Airlines Flights from Portland to Boston

Lowest fares from Portland to Boston

Aug 2026
From$209*
Seen: 11 hours ago
Flight Type One Way|Saver
Sep 2026
From$183*
Seen: 7 hours ago
Flight Type One Way|Saver
Oct 2026
From$192*
Seen: 11 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $183
cmp-daily-histogram-bars-legend-max-price-aria-label $429
Displaying fares for August-2026
  • PDX–BOS, Aug 12, 2026: From $429
    12

    We

    AUG

  • PDX–BOS, Aug 13, 2026: From $429
    13

    Th

  • PDX–BOS, Aug 14, 2026: From $429
    14

    Fr

  • PDX–BOS, Aug 15, 2026: From $369
    15

    Sa

  • PDX–BOS, Aug 16, 2026: From $369
    16

    Su

  • PDX–BOS, Aug 17, 2026: From $369
    17

    Mo

  • PDX–BOS, Aug 18, 2026: From $379
    18

    Tu

  • PDX–BOS, Aug 19, 2026: From $364
    19

    We

  • PDX–BOS, Aug 20, 2026: From $374
    20

    Th

  • PDX–BOS, Aug 21, 2026: From $399
    21

    Fr

  • PDX–BOS, Aug 22, 2026: From $364
    22

    Sa

  • PDX–BOS, Aug 23, 2026: From $329
    23

    Su

  • PDX–BOS, Aug 24, 2026: From $324
    24

    Mo

  • PDX–BOS, Aug 25, 2026: From $324
    25

    Tu

  • PDX–BOS, Aug 26, 2026: From $259
    26

    We

  • PDX–BOS, Aug 27, 2026: From $219
    27

    Th

  • PDX–BOS, Aug 28, 2026: From $209
    28

    Fr

  • PDX–BOS, Aug 29, 2026: From $219
    29

    Sa

  • PDX–BOS, Aug 30, 2026: From $219
    30

    Su

  • PDX–BOS, Aug 31, 2026: From $209
    31

    Mo

  • PDX–BOS, Sep 1, 2026: From $219
    01

    Tu

    SEP

  • PDX–BOS, Sep 2, 2026: From $283
    02

    We

  • PDX–BOS, Sep 3, 2026: From $249
    03

    Th

  • PDX–BOS, Sep 4, 2026: From $239
    04

    Fr

  • PDX–BOS, Sep 5, 2026: From $189
    05

    Sa

  • PDX–BOS, Sep 6, 2026: From $189
    06

    Su

  • PDX–BOS, Sep 7, 2026: From $239
    07

    Mo

  • PDX–BOS, Sep 8, 2026: From $189
    08

    Tu

  • PDX–BOS, Sep 9, 2026: From $344
    09

    We

  • PDX–BOS, Sep 10, 2026: From $269
    10

    Th

  • PDX–BOS, Sep 11, 2026: From $183
    11

    Fr

    • Range$183-$429

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights Portland to Boston.*

    $
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    One-way low-fare flights Portland to Boston.*
    From
    To
    Fare Type
    Dates
    Price
    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Sep 11, 2026

    From

    $183

    Seen: 7 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Sep 6, 2026

    From

    $189

    Seen: 5 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Sep 8, 2026

    From

    $189

    Seen: 4 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Sep 5, 2026

    From

    $189

    Seen: 11 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 30, 2026

    From

    $192

    Seen: 11 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 20, 2026

    From

    $202

    Seen: 11 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 24, 2026

    From

    $202

    Seen: 11 hours ago

    Portland (PDX)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 28, 2026

    From

    $202

    Seen: 11 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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