Flights from Bellingham (BLI) to Seattle (SEA) on Alaska Airlines

Lowest fares from Bellingham to Seattle

Nov 2026
From$189*
Seen: 18 hours ago
Flight Type One Way|Saver
Dec 2026
From$139*
Seen: 18 hours ago
Flight Type One Way|Saver
Jan 2027
From$139*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $139
cmp-daily-histogram-bars-legend-max-price-aria-label $309
Displaying fares for November-2026
  • BLI–SEA, Nov 11, 2026: From $309
    11

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    NOV

  • BLI–SEA, Nov 12, 2026: From $309
    12

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  • BLI–SEA, Nov 13, 2026: From $309
    13

    Fr

  • BLI–SEA, Nov 14, 2026: From $309
    14

    Sa

  • BLI–SEA, Nov 15, 2026: From $309
    15

    Su

  • BLI–SEA, Nov 16, 2026: From $284
    16

    Mo

  • BLI–SEA, Nov 17, 2026: From $284
    17

    Tu

  • BLI–SEA, Nov 18, 2026: From $284
    18

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  • BLI–SEA, Nov 19, 2026: From $284
    19

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  • BLI–SEA, Nov 20, 2026: From $284
    20

    Fr

  • BLI–SEA, Nov 21, 2026: From $284
    21

    Sa

  • BLI–SEA, Nov 22, 2026: From $284
    22

    Su

  • BLI–SEA, Nov 23, 2026: From $234
    23

    Mo

  • BLI–SEA, Nov 24, 2026: From $234
    24

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  • BLI–SEA, Nov 25, 2026: From $234
    25

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  • BLI–SEA, Nov 26, 2026: From $234
    26

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  • BLI–SEA, Nov 27, 2026: From $234
    27

    Fr

  • BLI–SEA, Nov 28, 2026: From $234
    28

    Sa

  • BLI–SEA, Nov 29, 2026: From $234
    29

    Su

  • BLI–SEA, Nov 30, 2026: From $189
    30

    Mo

  • BLI–SEA, Dec 1, 2026: From $189
    01

    Tu

    DEC

  • BLI–SEA, Dec 2, 2026: From $189
    02

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  • BLI–SEA, Dec 3, 2026: From $189
    03

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  • BLI–SEA, Dec 4, 2026: From $189
    04

    Fr

  • BLI–SEA, Dec 5, 2026: From $189
    05

    Sa

  • BLI–SEA, Dec 6, 2026: From $189
    06

    Su

  • BLI–SEA, Dec 7, 2026: From $189
    07

    Mo

  • BLI–SEA, Dec 8, 2026: From $189
    08

    Tu

  • BLI–SEA, Dec 9, 2026: From $139
    09

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  • BLI–SEA, Dec 10, 2026: From $149
    10

    Th

    • Range$139-$309

    *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 Bellingham to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights Bellingham to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 29, 2026

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 9, 2027

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 13, 2027

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 16, 2027

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 27, 2027

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 30, 2027

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Feb 16, 2027

    From

    $139

    Seen: 18 hours ago

    Bellingham (BLI)Seattle (SEA)One-way
    |
    Saver    		Depart: Feb 17, 2027

    From

    $139

    Seen: 18 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.

    Frequently Asked Questions on flights from Bellingham (BLI) to Seattle (SEA)

    When is the best time to book a flight from Bellingham to Seattle?

    Want to find the lowest fares by day and time flying from Bellingham to Seattle on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.

    Can I earn points on my flight to Seattle?

    Yes, with Atmosâ„¢ Rewards you can earn points on flights to 1000+ destinations worldwide through the growing network of Alaska and Hawaiian Airlines. Not an Atmosâ„¢ Rewards member yet? Learn more and join today.

    Can I rent a car when I arrive at Seattle/Tacoma International Airport?

    Yes, you can rent a car at Seattle/Tacoma International Airport. Check availability and book now

    Where can I find the status of my flight to Seattle?

    You can check the status of your upcoming Alaska Airlines flight on our flight schedule page.

    Where can I find answers to questions about flying with Alaska Airlines?

    Visit the Alaska Airlines Help Center to quickly browse our help pages by category to find the information you need.

    Can I change or cancel my Alaska Airlines flight to Seattle?

    Yes, you can review, modify, or cancel a reservation from our Manage Your Reservation tool. You can learn more about our policy for changing or cancelling a reservation here. 

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