Flights from Seattle (SEA) to Chicago (ORD) on Alaska Airlines

Lowest fares from Seattle to Chicago

Nov 2026
From$244*
Seen: 7 hours ago
Flight Type One Way|Saver
Dec 2026
From$124*
Seen: 7 hours ago
Flight Type One Way|Saver
Jan 2027
From$150*
Seen: 7 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $124
cmp-daily-histogram-bars-legend-max-price-aria-label $329
Displaying fares for November-2026
  • SEA–ORD, Nov 10, 2026: From $269
    10

    Tu

    NOV

  • SEA–ORD, Nov 11, 2026: From $269
    11

    We

  • SEA–ORD, Nov 12, 2026: From $269
    12

    Th

  • SEA–ORD, Nov 13, 2026: From $269
    13

    Fr

  • SEA–ORD, Nov 14, 2026: From $269
    14

    Sa

  • SEA–ORD, Nov 15, 2026: From $269
    15

    Su

  • SEA–ORD, Nov 16, 2026: From $269
    16

    Mo

  • SEA–ORD, Nov 17, 2026: From $269
    17

    Tu

  • SEA–ORD, Nov 18, 2026: From $269
    18

    We

  • SEA–ORD, Nov 19, 2026: From $269
    19

    Th

  • SEA–ORD, Nov 20, 2026: From $269
    20

    Fr

  • SEA–ORD, Nov 21, 2026: From $269
    21

    Sa

  • SEA–ORD, Nov 22, 2026: From $269
    22

    Su

  • SEA–ORD, Nov 23, 2026: From $269
    23

    Mo

  • SEA–ORD, Nov 24, 2026: From $329
    24

    Tu

  • SEA–ORD, Nov 25, 2026: From $329
    25

    We

  • SEA–ORD, Nov 26, 2026: From $269
    26

    Th

  • SEA–ORD, Nov 27, 2026: From $269
    27

    Fr

  • SEA–ORD, Nov 28, 2026: From $329
    28

    Sa

  • SEA–ORD, Nov 29, 2026: From $269
    29

    Su

  • SEA–ORD, Nov 30, 2026: From $244
    30

    Mo

  • SEA–ORD, Dec 1, 2026: From $150
    01

    Tu

    DEC

  • SEA–ORD, Dec 2, 2026: From $124
    02

    We

  • SEA–ORD, Dec 3, 2026: From $124
    03

    Th

  • SEA–ORD, Dec 4, 2026: From $124
    04

    Fr

  • SEA–ORD, Dec 5, 2026: From $124
    05

    Sa

  • SEA–ORD, Dec 6, 2026: From $124
    06

    Su

  • SEA–ORD, Dec 7, 2026: From $124
    07

    Mo

  • SEA–ORD, Dec 8, 2026: From $124
    08

    Tu

  • SEA–ORD, Dec 9, 2026: From $124
    09

    We

    • Range$124-$329

    *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 Seattle to Chicago.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to Chicago.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 3, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 5, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 8, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 9, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 11, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 2, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 13, 2026

    From

    $124

    Seen: 7 hours ago

    Seattle (SEA)Chicago (ORD)One-way
    |
    Saver    		Depart: Dec 16, 2026

    From

    $124

    Seen: 7 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 Seattle (SEA) to Chicago (ORD)

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

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

    Can I earn points on my flight to Chicago?

    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 O'Hare International Airport?

    Yes, you can rent a car at O'Hare International Airport. Check availability and book now

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

    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 Chicago?

    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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