£89 Cheap Flights from Chicago (CHI) to Seattle (SEA)
Popular airlines from Chicago to Seattle, WA (SEA-Seattle - Tacoma Intl.)
Alaska AirlinesAlaska Airlines
DeltaDelta
American AirlinesAmerican Airlines
UnitedUnited
Frontier AirlinesFrontier Airlines
Southwest AirlinesSouthwest Airlines
Sun Country AirlinesSun Country Airlines
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Cheap Flights from Chicago to Seattle (CHI-SEA)
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
Find the cheapest month to fly from Chicago (CHI) to Seattle (SEA)
November is typically the cheapest month to flyNovember is typically the cheapest month to fly
Book with confidence
Compare flights from Chicago to Seattle easily and book with confidence
For travelling on business or for pleasure, Expedia makes it easy to book your flights from Chicago to Seattle. Operating between them flights per day, 5 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Chicago, IL to Seattle - Tacoma Intl..
To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.
Grab a great deal on your flight from Chicago, IL (CHI) to Seattle - Tacoma Intl. (SEA)
The easiest way to view the best deals on flights from Chicago to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Chicago, IL to Seattle - Tacoma Intl. start at just £178 and range up to £224.
To find an even better deal, try
- being flexible on your dates – midweek flights can be cheaper
- looking for other airports near Chicago and Seattle
- booking your flight during December, the cheapest month on this route
- varying your flight times – early morning and late at night are sometimes cheaper
Why you should book your Chicago to Seattle flight with Expedia!
We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Chicago, IL to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.
Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.
Frequently Asked Questions
How much is a flight from Chicago, IL (CHI-All Airports) to SEA?
If you're travelling between Chicago, IL (CHI-All Airports) and Seattle - Tacoma Intl. Airport (SEA), round-trip flights start from £178. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chicago, IL (CHI-All Airports) to Sea-Tac Airport?
We understand that things crop up unexpectedly, so we've made it as simple as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Chicago, IL (CHI-All Airports) to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chicago, IL (CHI-All Airports) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chicago, IL (CHI-All Airports) to Seattle - Tacoma Intl. Airport (SEA)?
Expect to be up above the clouds for a while, as the flight distance between Chicago, IL (CHI-All Airports) and Sea-Tac Airport is 2,700 kilometres. Set up a playlist of your favourite tunes before leaving home to stay entertained during the trip.
Which airlines fly direct from Chicago, IL (CHI-All Airports) to Seattle - Tacoma Intl. Airport (SEA)?
Take a look at the deals on offer with these sought-after carriers and book your ticket from Chicago, IL (CHI-All Airports) to Sea-Tac Airport today:
- Alaska Airlines - (AS) with 134 monthly flights
- United Airlines - (UA) with 117 monthly flights
- Delta Air Lines - (DL) with 69 monthly flights
- American Airlines - (AA) with 60 monthly flights
Are Chicago, IL (CHI-All Airports) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Chicago, IL (CHI-All Airports) to Sea-Tac Airport can be hit-or-miss. It is possible to find a bargain, but then again, you could miss out altogether! If you'd prefer to start your trip planning early, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines advertise their prices so far in advance. Our top tip? Check back often as prices are updated frequently.
Travel information
Origin airport | Chicago Midway Airport |
|---|---|
Destination airport | Seattle-Tacoma International Airport |
Distance | 1,728 miles away |
Airlines serving | Southwest Airlines, Delta |
Popular airline | Southwest Airlines |
Return price | £178 |
Average flight time | 4 hours 45 mins |