SEAORD·~4h 30m nonstop
Cheap SEA to Chicago Flights
Bag fees in the price
Seattle to Chicago is a popular business route with solid competition from Alaska, United, and American. The Pacific Northwest–Midwest corridor sees strong corporate demand, which keeps frequency high and often makes midweek departures considerably cheaper than weekend travel.
Search SEA to ORD flights
Spotvoy compares fares across providers and shows true trip cost with bag fees.
Flight time from SEA to ORD
The typical nonstop flight time from SEA to ORD is ~4h 30m. Actual flight time varies by wind conditions and specific routing.
Route facts
Nonstop flight time SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete strongly. American offers service through their hub network.
Spotvoy tip for this route
Alaska's free bag benefit is valuable on this route, especially when comparing against United's bag fees at ORD. Midweek fares are often 15–25% lower than Friday–Sunday.
Planning a trip to Chicago?
See our full guide to Chicago — airport facts, family tips, and the best time to visit.
Chicago travel guide →Common questions about SEA–ORD flights
How long is the flight from Seattle to Chicago?
The typical nonstop flight time from SEA to ORD is ~4h 30m. Actual flight time varies by wind conditions and specific routing.
What is the flight time from SEA to ORD?
The typical nonstop flight time from SEA to ORD is ~4h 30m. Actual flight time varies by wind conditions and specific routing.
How long is the flight from SEA to Chicago?
The typical nonstop flight time from SEA to ORD is ~4h 30m. Actual flight time varies by wind conditions and specific routing.
What airlines fly SEA to ORD?
Nonstop flight time SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete strongly. American offers service through their hub network.
What is the true cost of a flight from Seattle to Chicago?
The headline fare is only part of the real cost. Spotvoy adds checked bag fees (typically $0 on Southwest, $30–65 on other carriers), seat selection if needed (for families), and estimates ground transport to and from the airport. The total can vary significantly from the advertised fare, especially for families.
What's the cheapest month to fly SEA to ORD?
Fares on this route shift by season. Midweek departures (Tuesday–Wednesday) typically save 10–20% versus weekend flights. Spotvoy compares live fares across dates so you can see when the true trip cost — bags included — is lowest for your trip.
Where can I find cheap flights from Seattle to Chicago?
Search SEA to ORD on Spotvoy to compare headline fares plus bag fees and seat costs. Midweek departures and booking a few weeks ahead usually lower the true trip cost. Alaska's free bag benefit is valuable on this route, especially when comparing against United's bag fees at ORD. Midweek fares are often 15–25% lower than Friday–Sunday.
Are there direct flights from SEA to ORD?
Nonstop flight time SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete strongly. American offers service through their hub network. Typical nonstop time is ~4h 30m nonstop.
Does Alaska fly from SEA to ORD?
Nonstop flight time SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete strongly. American offers service through their hub network.
Does United fly from SEA to ORD?
Nonstop flight time SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete strongly. American offers service through their hub network.
What are the cheapest SEA to ORD flights?
Search SEA to ORD on Spotvoy for true trip cost with bag fees — the cheapest headline fare is not always cheapest for families. Alaska's free bag benefit is valuable on this route, especially when comparing against United's bag fees at ORD. Midweek fares are often 15–25% lower than Friday–Sunday.
Are there SEA to ORD flights today?
Same-day SEA–ORD seats depend on season and day of week — this route is moderately served. Spotvoy compares fares across dates; use your airline app for live gate status after booking.
What is the flight time from Seattle to Chicago?
Nonstop SEA to ORD is typically ~4h 30m nonstop. Nonstop flight time SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete strongly. American offers service through their hub network.
What is the flight time from SEA to ORD?
Nonstop SEA–ORD is approximately 4 hours 30 minutes. Alaska and United compete on this route. Midweek fares are often 15–25% lower than Friday–Sunday.
Are there SEA to ORD flights?
Yes. Alaska and United operate frequent SEA–ORD nonstops. American also serves the route through its hub network. Spotvoy compares bag fees so a cheaper headline fare does not hide a $70 bag add-on.
Tips for flying SEA to ORD?
Alaska's free bag benefit is valuable on this route, especially when comparing against United's bag fees at ORD. Midweek fares are often 15–25% lower than Friday–Sunday.