Chicago, IL CHI to Seattle-Tacoma International Airport SEA flight with Alaska Airlines

Mon, Nov 17
+ Add return
Alaska Airlines
American Airlines
Vueling Airlines
easyJet
Ryanair
1,000+ travel companies
Alaska Airlines
American Airlines
Vueling Airlines
easyJet
Ryanair
1,000+ travel companies
QR-Code
Scan to get our free app
Use our app to get live travel updates and book mobile tickets for trains, buses, flights, and ferries.
App Store
rate4.9
42K ratings
Google Play
rate4.6
136K reviews

Journey information

Overview: Chicago, IL to Seattle-Tacoma International Airport flight

USAUSA
USAUSA
Icon of flight

Flights from Chicago, IL to Seattle-Tacoma International Airport depart on average 28 times per day, taking around 4h 34m. Cheap flight tickets for this journey start at $97 (€79) if you book in advance.

There are 10 flights per day. The earliest flight runs at 16:26, the last at 16:47. The fastest flight covers the 1731 miles (2786 km) distance in 4h 36m. August is the cheapest month to fly.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
1731 miles (2786 km)
Average flight duration
4h 34m
Cheapest ticket price
$97 (€79)
Flights per day
28
Direct flights
10
Fastest flight
4h 36m
Cheapest month to travel
August
First flight
16:26
Last flight
16:47
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

Travel Information

Compare bus, train, and flight for Chicago, IL to Seattle-Tacoma International Airport

Omio recommends booking the flight as it is the most popular option from Chicago, IL to Seattle-Tacoma International Airport among Omio's users. If you are prioritising price take the flight with prices starting from €79. For those with little time consider booking a flight which can get you there in 4h 34m. The ticket price range depends on the travel mode: a flight costs an average of €79, and a train costs an average of €146.

Distance: 1731 miles (2786 km)

Compare flight with

Most popular
Flight
Train
Bus

€94

Average price

Cheapest

€148

Average price

€137

Average price

7h 34m

Average total duration

Fastest

4h 34m

Onboard

+

3h 0m

Additional time*

100h 13m

Average total duration

99h 43m

Onboard

+

30m

Additional time*

89h 15m

Average total duration

88h 45m

Onboard

+

30m

Additional time*

Direct Options

Direct Options

Direct Options

Compare prices and tickets Chicago, IL to Seattle-Tacoma International Airport by bus, train, or flight

Compare bus, train, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

Mon
Nov 17
Tue
Nov 18
Wed
Nov 19
Thu
Nov 20
Fri
Nov 21
Sat
Nov 22
Sun
Nov 23

Airlines: Alaska Airlines, American Airlines from Chicago, IL to Seattle-Tacoma International AirportFind the best flights between Chicago, IL to Seattle-Tacoma International Airport with Omio's travel partners Alaska Airlines, American Airlines from $97 (€79). We can find you the best deals, schedules and tickets when comparing and booking the best trip.

American Airlines

About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
4h 36m
Cheapest Price
$97 (€79)
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Entertaiment on board

Alaska Airlines

About
Alaska Airlines, headquartered in SeaTac, Washington, is a major U.S. airline and the fifth-largest in North America by scheduled passengers carried as of 2024. Along with its regional partners, Horizon Air and SkyWest Airlines, Alaska Airlines operates a route network primarily connecting cities along the West Coast of the United States, including Alaska and Hawaii, to over 100 destinations in the contiguous U.S., the Bahamas, Belize, Canada, Costa Rica, Guatemala, and Mexico. The airline is a member of the Oneworld alliance, offering passengers access to a broad global network. Alaska Airlines is known for its customer service and loyalty program, Mileage Plan, and offers First Class, Premium Class, and Main Cabin seating options. The airline's primary hub is Seattle-Tacoma International Airport. In 2024, its parent company, Alaska Air Group, acquired Hawaiian Airlines.
Luggage & cancellation policy
Average Duration
4h 51m
Cheapest Price
$404 (€327)
Alaska Airlines frequency
18 a day
Luggage included
1 carry-on bag (22 x 14 x 9) and 1 personal item included
Additional luggage
Checked bags fees start at $30 for first bag, $40 for second bag
Cancellation Policy
Saver fares are non-refundable. Main and First Class fares are refundable with fee, depending on fare type and elite status
Pregnant on board
Passengers can fly up to 36 weeks pregnant. After 28 weeks, medical certificate required
Unaccompagned minor
Unaccompanied minor service available for children ages 5-17. Service fee is $50 per direction on nonstop flights
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Alaska Airlines provides wheelchair assistance and special services for passengers with disabilities, including meet-and-assist services and accessible seating
Pets
Pets allowed in cabin and cargo hold. Service animals welcome. Fees apply for pets in cabin ($100)
Entertaiment on board

FAQs: Chicago, IL to Seattle-Tacoma International Airport Flight

Find answers to the most common questions about traveling from Chicago, IL to Seattle-Tacoma International Airport by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Seattle-Tacoma International Airport, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) can start from as little as $77 (€62) when you book in advance. The average flight ticket price for Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) is $128 (€104); however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) flight time is 4 h 34 min   covering the 1727 mile (2786 km) long trip, but the journey time can vary depending on specific dates or if traveling on weekends and holidays.
The earliest flight from Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) leaves at 1: 40PM. Plan your trip with the Journey Planner   from Omio.
The latest flight from Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) leaves at 9: 45PM.
There are 40 flights a day from Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) which require at least one change with Alaska Airlines. Schedules can vary on holidays or weekends with fewer flights.
For the best Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) flight to buy, you can travel safely and comfortably with Alaska Airlines. However, it's always good to check all possible airlines with services between Chicago, IL and Seattle-Tacoma International Airport, WA (SEA) to compare what amenities they may offer.
The cheapest month for a flight from Chicago, IL to Seattle-Tacoma International Airport, WA (SEA) is September.
It's helpful to compare your options as there are 3 ways to travel between Chicago, IL and Seattle-Tacoma International Airport, WA (SEA) including taking a bus, train or flight.
Since neither Chicago, IL nor Seattle-Tacoma International Airport, WA (SEA) are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and USA. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 2 h between Chicago, IL and Seattle-Tacoma International Airport, WA (SEA) all year round.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e. G. 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs).
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.

popular airports

Popular airports from Chicago, IL to Seattle-Tacoma International Airport

Chicago
Seattle
The major airport for departures in Chicago is O'Hare International Airport. Find all the information you need to know about services, amenities and connections at O'Hare International Airport for your trip from Chicago to Seattle.
Amenities at airport
WifiWifi
ShoppingShopping
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
Car RentalCar Rental
information
ticketOfficeHours
Distance to city center
3 km
carConnection
Car connection
I-190, Exit 1
Wifi
Wifi
  • Free Wi-Fi available throughout the airport.
Shopping
Shopping
  • Shops are located in all terminals, including duty-free and brands like Hudson and MAC Cosmetics.
Parking
Parking
  • Parking available with options including hourly, daily, and economy lots, approximately 2.85€ ($3) per hour.
Dining
Dining
  • Restaurants are located in all terminals, offering a variety of cuisines including American and intertiol. Top options include Tortas Frontera and Publican Tavern.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Elevators, ramps, toilets
WC
WC
  • Available throughout the airport.
Hotel
Hotel
  • Hotels such as Hilton Chicago O'Hare are located on airport grounds, with others like the Hyatt Regency nearby.
Shower
Shower
  • Showers are available in some lounges, such as the United Club, but access may require a fee or membership.
Lounge
Lounge
  • Lounges available, including United Club and American Airlines Admirals Club.
Lost and Found Office
Lost and Found Office
  • Lost and Found located in terminal 1, near the baggage claim area.
Car Rental
Car Rental
  • Car rental services are available at the Multi-Modal Facility, with companies like Hertz and Avis.
Public transit options for O'Hare International Airport
  • CTA Blue Line, O'Hare Station, 45 minutes to city center

More options for your journey from Chicago, IL to Seattle-Tacoma International Airport

Here are some other resources that might have the information you need

HomeFlightsFlights in USAChicago, IL to Seattle-Tacoma International Airport Flights

The Omio App Makes Travel Planning Easy

We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.

ios-badge
android-badge
Hand With Phone