S$115 Cheap Flights from Chicago to Seattle

View S$115 flight on Sat, 14 Feb, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Seattle-Tacoma International Airport (SEA)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Chicago to Seattle (ORD-SEA)

Prices were available within the past 7 days and start at S$115 for one-way flights and S$267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$267 Return, found 5 days ago
S$267
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$267 found 5 days ago
United
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$287 Return, found 5 days ago
S$287
Return
found 5 days ago
Select United flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$287 found 5 days ago
Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$292 Return, found 5 days ago
S$292
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$292 found 5 days ago
Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$305 Return, found 5 days ago
S$305
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$305 found 5 days ago
Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$319 Return, found 5 days ago
S$319
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$319 found 5 days ago
United
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$326 Return, found 5 days ago
S$326
Return
found 5 days ago
Select United flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$326 found 5 days ago
Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$331 Return, found 5 days ago
S$331
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$331 found 5 days ago
Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$333 Return, found 5 days ago
S$333
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$333 found 5 days ago
Delta
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$344 Return, found 5 days ago
S$344
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$344 found 5 days ago
American Airlines
Sat, 28 Feb - Sat, 7 Mar
ORD
Chicago
SEA
Seattle
S$344 Return, found 5 days ago
S$344
Return
found 5 days ago
Select American Airlines flight, departing Sat, 28 Feb from Chicago to Seattle, returning Sat, 7 Mar, priced at S$344 found 5 days ago

Find the cheapest month to fly from Chicago (ORD) to Seattle (SEA)

February is typically the cheapest month to fly

From S$138 - S$242 per traveller.

Frequently asked questions

How much is a flight from O'Hare Intl. Airport (ORD) to Sea-Tac Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey between O'Hare Airport and SEA was S$267. Fares this good don't last forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from O'Hare Airport to SEA?
We understand that life can throw the odd curveball, so we've made it as easy as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from ORD 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 O'Hare Airport 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 O'Hare Intl. Airport (ORD) to Sea-Tac Airport?
The flying distance from ORD to Seattle - Tacoma Intl. Airport (SEA) is 2,800 kilometres. Close your eyes or read a good book and the journey will zip by.
Which airlines fly direct from ORD to Seattle - Tacoma Intl. Airport (SEA)?
It's a breeze to fly directly from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA). These are the top carriers that operate nonstop services on this route:

  • 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 O'Hare Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally find a bargain, with some of the cheapest airfares from O'Hare Airport to Sea-Tac Airport showing up a few weeks before the departure date. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines advertise prices that far in advance.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
S$266
Distance
2745 km
Average flight time
2 hours 43 mins

Book with confidence

Flights from Chicago to Seattle

There are several airlines that operate frequent flights from Chicago (ORD) to Seattle (SEA) including

The earliest flight leaves O'Hare Intl. Airport at 06:00 and arrives at Seattle Tacoma Intl. Airport at 01:42. The last flight of the day departs Chicago at 23:35 and arrives at Seattle at 23:05.

The flight distance from Chicago to Seattle is about 2776 km, the shortest flight is 04 hours 22 minutes with United Airlines.

Expedia lets you search across the largest number of airlines and Seattle flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Chicago Seattle flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chicago to Seattle trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Seattle flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Chicago to Seattle with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Flights from Chicago to Seattle

Explore a world of travel with Expedia

*Available to Expedia members.