
Book Cheap Alaska Airlines flight from Seattle (SEA) to Chicago (ORD) from CA $161
Find The Best Day to Book a Cheap Alaska Airlines Flights From Seattle to Chicago
Cheapest Alaska Airlines Flights from Seattle (SEA) to Chicago (ORD)
The cheapest flights to O'Hare Intl. found within the past 7 days were CA $333 round trip and CA $161 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great Alaska Airlines flight from SEA to ORD
To find a great deal on Alaska Airlines flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying Alaska Airlines Seattle to Chicago gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with Alaska Airlines between Seattle and Chicago
Alaska Airlines has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Seattle to Chicago with Alaska Airlines are May.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your Alaska Airlines flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| SEA | USA | Seattle - Tacoma Intl. | 115 |
| ORD | USA | O'Hare Intl. | 44 |
| LAX | USA | Los Angeles Intl. | 24 |
| PDX | USA | Portland Intl. | 23 |
| ANC | USA | Ted Stevens Anchorage Intl. | 22 |
| SFO | USA | San Francisco Intl. | 21 |
| SAN | USA | San Diego Intl. | 18 |
| JNU | USA | Juneau Intl. | 10 |
| SJC | USA | Norman Y. Mineta San Jose Intl. | 10 |
| GEG | USA | Spokane Intl. | 7 |
Travelers ❤️ these 🏨 after their flight to Chicago

Hilton Chicago O'Hare Airport
The hotel had no electricity upon arrival, inexplicably as there were no severe weather conditions. I was handed two glow sticks to be able to guide my way around the hotel and my room. You can’t make this stuff up. The fact that there was nothing provided to compensate for the matter (discount, ...
Reviewed on Mar 19, 2026

Hyatt Regency O'Hare Chicago
Had a lovely view of the Outside and a very comfortable bed. But sadly, the room I had was not very soundproof, I’m a person who likes to take a shower in the morning Just to find out. The shower didn’t work. No I had to check if the shower works or not. Whenever I book a top.
Reviewed on Mar 20, 2026

Holiday Inn Chicago O'Hare – Rosemont by IHG
Everyone was helpful - check-in, restaurant
Reviewed on Mar 18, 2026
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