American Airlines flights from Chicago to Seattle

Flying from Chicago to Seattle

American Airlines offers convenient flights from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA). Whether you're traveling for business or leisure, enjoy flexible scheduling and seamless connections. With multiple daily flights, you can choose the best time to suit your itinerary.

Recent searches for flights from Chicago to Seattle

cmp-daily-histogram-bars-legend-min-price-aria-label $277
cmp-daily-histogram-bars-legend-max-price-aria-label $487
Displaying fares for August-2026
  • ORD–SEA, 08/24/26 – 09/07/26: From $447
    24

    Mo

    AUG

  • CHI–SEA, 08/25/26 – 08/28/26: From $447
    25

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  • CHI–SEA, 08/26/26 – 09/02/26: From $487
    26

    We

  • ORD–SEA, 08/27/26 – 09/01/26: From $447
    27

    Th

  • ORD–SEA, 08/28/26 – 08/30/26: From $447
    28

    Fr

  • ORD–SEA, 08/29/26 – 09/05/26: From $487
    29

    Sa

  • ORD–SEA, 08/30/26 – 09/02/26: From $447
    30

    Su

  • ORD–SEA, 08/31/26 – 09/01/26: From $447
    31

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  • ORD–SEA, 09/01/26 – 09/02/26: From $447
    01

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    SEP

  • ORD–SEA, 09/02/26 – 09/09/26: From $487
    02

    We

  • CHI–SEA, 09/03/26 – 09/07/26: From $447
    03

    Th

  • CHI–SEA, 09/04/26 – 09/11/26: From $487
    04

    Fr

  • ORD–SEA, 09/05/26 – 09/12/26: From $448
    05

    Sa

  • CHI–SEA, 09/06/26 – 09/13/26: From $448
    06

    Su

  • ORD–SEA, 09/07/26 – 09/14/26: From $427
    07

    Mo

  • CHI–SEA, 09/08/26 – 09/15/26: From $382
    08

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  • CHI–SEA, 09/09/26 – 09/16/26: From $343
    09

    We

  • ORD–SEA, 09/10/26 – 09/17/26: From $353
    10

    Th

  • ORD–SEA, 09/11/26 – 09/19/26: From $343
    11

    Fr

  • CHI–SEA, 09/12/26 – 09/19/26: From $343
    12

    Sa

  • CHI–SEA, 09/13/26 – 09/20/26: From $422
    13

    Su

  • ORD–SEA, 09/14/26 – 09/15/26: From $287
    14

    Mo

  • ORD–SEA, 09/15/26 – 09/22/26: From $277
    15

    Tu

  • CHI–SEA, 09/16/26 – 09/23/26: From $277
    16

    We

  • CHI–SEA, 09/17/26 – 09/24/26: From $297
    17

    Th

  • ORD–SEA, 09/18/26 – 09/22/26: From $317
    18

    Fr

  • ORD–SEA, 09/19/26 – 09/26/26: From $277
    19

    Sa

  • CHI–SEA, 09/20/26 – 09/27/26: From $357
    20

    Su

  • ORD–SEA, 09/21/26 – 09/24/26: From $297
    21

    Mo

  • ORD–SEA, 09/22/26 – 09/24/26: From $287
    22

    Tu

  • CHI–SEA, 09/23/26 – 09/27/26: From $317
    23

    We

  • range$277-$487

    Find deals on Chicago to Seattle flights

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    Chicago (ORD)to

    Seattle (SEA)
    09/26/26 - 10/03/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    09/15/26 - 09/22/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    09/30/26 - 10/07/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    Chicago (ORD)to

    Seattle (SEA)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $277Fare subject to changes
    Updated: 43 minutes ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Chicago to Seattle

    Looking for lower fares on your trip from Chicago to Seattle? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Chicago to Seattle

    Tips for a smooth departure from O'Hare International Airport (ORD)

    Ensure a hassle-free start to your journey with these tips:

    • Arrive early: Plan to arrive at least 2 hours before domestic flights and 3 hours for international trips.
    • Get your boarding pass: Download your boarding pass in the American app or print it before you arrive at the airport.
    • Know your terminal: American typically operates from Terminal 3 at ORD. Make sure to check your terminal before your flight.
    • Have your ID and travel documents: Travelers need a REAL ID or a valid passport to fly within the U.S. For international travel, a valid passport is required, and some international destinations may have additional entry requirements. Check the official airport website for your destination for these requirements.
    • Locate the lounge: Complimentary Admirals Club® lounge access may be available for qualifying customers.
    • Find dining options and amenities: ORD offers a variety of restaurants and amenities like pet relief areas, nursery rooms and more.

    Learn more about how you can manage travel on the go using the American app.

    Arriving in Seattle

    Seattle-Tacoma International Airport (SEA)

    Located approximately 14 miles south of downtown Seattle, Seattle-Tacoma International Airport offers easy access to the city. Choose from a variety of transportation options:

    • Public transportation: The Link Light Rail offers a convenient and affordable way to reach downtown Seattle from the airport. Trains run frequently, providing easy access to key areas of the city.
    • Taxis/rideshare: Taxis and rideshare services are available 24/7 at designated pickup areas outside the terminal. These options offer a quick and direct route to your destination.
    • Shuttle services: Many hotels in the Seattle area offer complimentary shuttle services to and from the airport. It's advisable to check with your hotel in advance to confirm availability and schedule.
    • Rental cars: The airport's Rental Car Facility houses a variety of rental car companies, providing flexibility for those who wish to explore Seattle and the surrounding region at their own pace.

    Check out the the official airport website for more transportation details.

    Discover Seattle

    Best time to visit Seattle

    Seattle is a year-round destination, but spring and summer offer the most pleasant weather for outdoor activities.

    • Spring (March to May): Spring is a beautiful time to visit Seattle, as the city comes alive with blooming flowers and mild temperatures.
    • Summer (June to August): Summer is the most popular time to visit Seattle, thanks to the warm and sunny weather. With temperatures typically ranging from the mid-50s to the high 70s (°F), it's an ideal time for outdoor activities like hiking, kayaking and exploring the city's parks.
    • Fall (September to November): Fall in Seattle is marked by cooler temperatures and stunning foliage, making it a great time for scenic drives and outdoor exploration.
    • Winter (December to February): While winter can be rainy and cool, with temperatures in the 30s and 40s (°F), Seattle offers plenty of indoor attractions and cozy experiences.

    Top things to see and do in Seattle

    Experience the vibrant energy of Seattle with these must-see attractions:

    • Pike Place Market: One of Seattle's most iconic destinations, Pike Place Market is one of the oldest and largest operating public market in the United States. Explore a variety of stalls offering fresh seafood, local produce, artisanal goods and unique crafts. Don't miss the famous fish-throwing tradition at the fish market and the original Starbucks store.
    • Space Needle: A symbol of Seattle, the Space Needle offers breathtaking panoramic views of the city, Puget Sound and the surrounding mountains. The observation deck provides a 360-degree view and the rotating SkyCity restaurant offers a unique dining experience.
    • Chihuly Garden and Glass: Located near the Space Needle, this exhibition showcases the stunning glass art of Dale Chihuly. Wander through the indoor galleries and outdoor garden to admire the vibrant and intricate glass sculptures.
    • Seattle Art Museum (SAM): Explore a diverse collection of art from around the world at SAM, located in downtown Seattle. The museum hosts rotating exhibitions and offers a variety of programs and events.

    Booking your trip to Seattle with American Airlines

    With a variety of flight options and easy booking, American Airlines makes it simple to plan your trip to Seattle. Enjoy reliable service and start your adventure today.