£60 Cheap Flights from Chicago (CHI) to Seattle (SEA)

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Cheap Flights from Chicago (CHI) to Seattle (SEA)

Prices were available within the past 7 days and start at £60 for one-way flights and £115 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Delta
Alaska Airlines
Alaska Airlines
Alaska Airlines
Delta
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Flight from Chicago to Seattle route information
Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, United
Return price
£114
Distance
2745 km

Compare flights from Chicago to Seattle easily and book in 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, 20 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 CHI-All Airports 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 CHI-All Airports (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 CHI-All Airports to Seattle - Tacoma Intl. start at just £115 and range up to £167.  

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 May, 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 CHI-All Airports 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 £115. 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.
Chicago Airports
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