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Uncover the best deals on Chicago to Seattle flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest ORD - SEA Flights
Useful information for finding best airline tickets from Chicago O'Hare International to Seattle Tacoma International on your next trip.
Cheapest Round Trip Flight
$490
Southwest Airlines
• nonstop
• 7h 15m
Sep 25 – Oct 03
The cheapest round trip flight from Chicago to Seattle (ORD-SEA-ORD) is currently $490
Cheapest Direct Flight
$210
United Airlines
• nonstop
• 4m
Sep 25
The cheapest nonstop flight from Chicago to Seattle (ORD-SEA) is currently $210
Fastest Flight
4m
The fastest nonstop flight from Chicago to Seattle (ORD-SEA) takes 4m
Top Airlines Flying from Chicago to Seattle
Latest Flight Deals from Chicago (ORD) to Seattle (SEA)
Compare and book low fare round-trip air tickets from Chicago to Seattle. Ideal for travelers with confirmed return itineraries.
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 15m
9:20 PM - 11:55 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 5m
3:55 PM - 6:20 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 5m
3:55 PM - 6:20 PM • nonstop
Chicago → Seattle
10h 35m
11:05 AM - 7:40 PM • 1 stop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 15m
9:20 PM - 11:55 PM • nonstop
Chicago → Seattle
10h 35m
11:05 AM - 7:40 PM • 1 stop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 10m
10:45 AM - 1:15 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Flying to Seattle soon? We've surfaced some of the most affordable last-minute flights from Chicago to Seattle, ideal for urgent plans or spontaneous trips.
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 15m
9:20 PM - 11:55 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 5m
3:55 PM - 6:20 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 5m
3:55 PM - 6:20 PM • nonstop
Chicago → Seattle
10h 35m
11:05 AM - 7:40 PM • 1 stop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 15m
9:20 PM - 11:55 PM • nonstop
Chicago → Seattle
10h 35m
11:05 AM - 7:40 PM • 1 stop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 10m
10:45 AM - 1:15 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Looking for the fastest way to Seattle? These direct flight options from ORD to SEA offer both convenience and value—no layovers, just straight to your destination.
Sep 25 - Oct 03, Economy
Chicago → Seattle
4m
8:45 AM - 11:27 AM • nonstop
Chicago → Seattle
4m
5:07 PM - 11:10 PM • nonstop
United Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
9m
12:55 PM - 8:37 PM • nonstop
Chicago → Seattle
4m
5:07 PM - 11:10 PM • nonstop
United Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
4m
10:00 AM - 12:50 PM • nonstop
Chicago → Seattle
4m
6:18 AM - 12:32 PM • nonstop
American Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 15m
9:20 PM - 11:55 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
Sep 25 - Oct 03, Economy
Chicago → Seattle
7h 5m
3:55 PM - 6:20 PM • nonstop
Chicago → Seattle
5h 55m
12:10 AM - 6:05 AM • nonstop
Southwest Airlines
FAQs on Chicago to Seattle Flights
What are the airports in Chicago?
MDW,ORD
What’s the most popular airline flying from ORD to SEA?
The most popular airline flying from Chicago to Seattle are
Can I fly from ORD to SEA non-stop?
Yes, you can fly ORD to SEA non-stop on
Which airlines fly nonstop between Chicago and Seattle?
The non-stop flights between Chicago and Seattle are .
What’s the earliest departure time from ORD to SEA Airport?
The earliest flight leaves ORD at 8:45 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Chicago to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ORD to SEA?
Read the fare rules of the Chicago to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Chicago and Seattle?
operate flights between Chicago and Seattle
How long does a flight from Chicago to Seattle take?
It takes approximately 4 hour to fly non-stop from ORD to SEA, which is 1720.56 miles by air.
Which airlines provide the cheapest flights from Chicago (ORD) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from ORD were found on WN : USD 533
Do I need a passport to fly between ORD and SEA?
No
What’s the latest departure time from ORD to SEA ?
The last flight leaves ORD at 9:20 pm
Chicago (ORD) to Seattle (SEA): Airport Information
| Origin Airport | Chicago O'Hare International , Chicago, US |
| Destination Airport | Seattle Tacoma International , Seattle, US |
| Distance | 1721 miles |
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