NZ$319 Cheap Flights Chicago to Seattle (CHI-SEA)

View NZ$319 flight on Sat, 13 Jun. 2026Opens in a new window

Popular airlines from Chicago to Seattle, WA (SEA-Seattle - Tacoma Intl.)

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$554 Return, found 6 days ago
NZ$554
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$554 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$589 Return, found 6 days ago
NZ$589
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$589 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$671 Return, found 6 days ago
NZ$671
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$671 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$696 Return, found 6 days ago
NZ$696
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$696 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$705 Return, found 6 days ago
NZ$705
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$705 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$722 Return, found 6 days ago
NZ$722
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$722 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$723 Return, found 6 days ago
NZ$723
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$723 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$731 Return, found 6 days ago
NZ$731
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$731 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$739 Return, found 6 days ago
NZ$739
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$739 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$756 Return, found 6 days ago
NZ$756
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$756 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$757 Return, found 6 days ago
NZ$757
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$757 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$774 Return, found 6 days ago
NZ$774
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$774 found 6 days ago
American Airlines
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$799 Return, found 6 days ago
NZ$799
Return
found 6 days ago
Select American Airlines flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$799 found 6 days ago
Delta
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$816 Return, found 6 days ago
NZ$816
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$816 found 6 days ago
United
Thu, 11 Jun. - Sat, 13 Jun.
ORD
Chicago
SEA
Seattle
NZ$885 Return, found 6 days ago
NZ$885
Return
found 6 days ago
Select United flight, departing Thu, 11 Jun. from Chicago to Seattle, returning Sat, 13 Jun., priced at NZ$885 found 6 days ago
Flight from Chicago to Seattle route information
Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
NZ$554
Distance
2745 km

CHI to SEA Flights

Ready to have the time of your life? When you use Expedia.co.nz to book cheap flights from Illinois to Seattle, you can experience all of the attractions this city is famous for, or escape the crowds and explore the outskirts on your own. Our amazing deals on airfare help you save big on tickets, so you can spend more of your hard-earned money enjoying local entertainment options. Even if you seek to score a seat on one of the last-minute CHI to SEA flights, you’ll still save a bundle when compared to the competition.

See for yourself how simple it is to book the holiday of your dreams to Seattle by using our helpful search engine today. We have the largest inventory of flights on the internet, and our intuitive tools make it easy to find affordable airfare at any time of year.

Prefer to fly with a particular airline? Our extensive network of travel partners ensures that you can travel with whichever carrier you prefer. So if you’ve been searching for cheap flights to Seattle from Illinois, Expedia.co.nz has exactly what you’re looking for. As the world’s leader in travel, we’re committed to helping you get the best rates around.

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 NZ$554. 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.

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