$90 Cheap Delta flights Seattle (SEA) to Chicago (ORD)

Finding cheap one-way Delta Air Lines flights from SEA to ORD from $90 on Expedia is a cinch — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly round-trip fares from $179 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to Chicago tend to be more affordable in the low-season months of January and February. Whether you’re in search of a one-way or a return ticket, you could score a better deal then.

Begin your search one to three months ahead of your departure date to find cheap fares on Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to O’Hare Intl. Airport (ORD). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Delta Air Lines offers direct flights from Seattle - Tacoma Intl. Airport (SEA) to O’Hare Intl. Airport (ORD), with 13 departures every week. Simply choose the “Nonstop” and “Airline” filters while searching on Expedia to see all direct Delta Air Lines flights to ORD.

From takeoff to touchdown, a nonstop Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to O’Hare Intl. Airport (ORD) typically takes 4h 2m.

Thursday has the most Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to O’Hare Intl. Airport (ORD). With 2 daily departures, this is the best day of the week to find something that will suit your schedule.

The earliest flight from SEA to ORD with Delta Air Lines leaves at 7:25AM UTC-8. You’ll touch down at 1:30PM UTC-6. The final Delta Air Lines flight of the day leaves at 6:10PM UTC-8 and arrives at 12:11AM UTC-6. With around 20% fewer cancellations for morning and mid-morning departures, setting off early is typically the smartest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Chicago touch down at O’Hare Intl. Airport (ORD) and Midway Intl. Airport (MDW). The main Chicago gateway served by this airline is ORD. It’s always worth exploring flights arriving at nearby airports on Expedia as they may have cheaper tickets.

Delta Air Lines makes flying from SEA to ORD more enjoyable with a rewarding loyalty program and an excellent in-flight experience. You may even earn points with Delta SkyMiles. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Hop on a Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to O’Hare Intl. Airport (ORD), and you’ll probably board an Airbus A220-300. Keep in mind though, that the aircraft type can change due to operational requirements.

Depending on the type of fare you purchased, a fee may apply if you cancel or reschedule your booking more than 24 hours after it’s confirmed. To find tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when looking for flights. For more details on canceling or changing your reservation, go to “Trips,” select your flight and tick “Manage Booking.”