CHI to SEA (Chicago to Seattle) Flights

Last Minute Flights from CHI to SEA

Price found within the past 7 days for the specified period. Click for updated prices.

Cheapest CHI to SEA Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
ORDSeattleApril 25 to May 2$213
ORDSeattleApril 15 to April 29$216
RFDSeattleMay 12 to May 19$255
ORDSeattleMay 6 to May 9$255
MDWSeattleMay 5 to May 12$255
*Prices include taxes and fees
CHI to SEA Flight Details
Origin airport
O'Hare Intl.
Origin airport IATA code
ORD
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Distance
1715 mi

Frequently asked questions

How many flights are there from Chicago, IL (CHI-All Airports) to SEA?
There are 27 flights a day from Chicago, IL (CHI-All Airports) to Seattle, WA (SEA-Seattle - Tacoma Intl.), so you have no shortage of ways to get to SeaTac. Just decide on a date and time that works for you and lock in your seat.
How many morning flights are there from Chicago, IL (CHI-All Airports) to SEA?
The Chicago, IL (CHI-All Airports) to SEA route has good connections, with 82 morning flights a week.

  • Delta Air Lines (DL) operates 41 weekly flights that jet off before noon. The earliest one departs at 6:00AM.
  • Alaska Airlines (AS) is one more option. It operates 14 services before noon each week, with the earliest departure being 6:00AM.

How many afternoon flights are there from Chicago, IL (CHI-All Airports) to SEA?
Take off on one of the 109 afternoon and evening flights from Chicago, IL (CHI-All Airports) to SEA each week.

  • Delta Air Lines (DL) provides 49 weekly flights that leave after midday. The earliest departure is 12:00PM.
  • Alaska Airlines (AS) provides 22 afternoon and evening flights each week. The first departs Chicago, IL (CHI-All Airports) at 1:06PM.
  • One more top choice is United Airlines (UA). It operates 20 afternoon and evening flights every week from 1:00PM onward.

What is the earliest departure time out of Illinois to SeaTac?
5:30AM is the earliest flight that takes off from Chicago, IL (CHI-All Airports), touching down at SEA at 9:35PM. Save time in the morning by having your suitcase zipped up and ready to be thrown in the boot.
What is the latest departure time out of Illinois to SeaTac?
The last flight leaves the runway at Chicago, IL (CHI-All Airports) at 10:59PM and touches down at 8:00PM at SEA. You'll have plenty of time to prepare for this flight.
What is the average price from Illinois to SeaTac?
Round-trip journeys from Chicago, IL (CHI-All Airports) to SEA start from around $213. Hot deals wait for nobody, so get set to click "book" when you find the right price. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Chicago to Seattle Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from Chicago to Seattle to attend your cousin’s wedding, to pitch a business idea to your boss, or simply treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find our cheapest flights from CHI to SEA, we’ve got you covered here at Flights.com.

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from Chicago to Seattle, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.

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