Direct (nonstop) flights from Seattle to Chicago
4 airlines fly nonstop from Seattle Tacoma International (SEA) to Chicago O Hare International (ORD). It's 1,720 miles (2,768 km), about 4h 11m in the air. Operated by American Airlines, Alaska Airlines, Delta Air Lines and others.
American Airlines
Alaska Airlines
Delta Air Lines
United Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
AA
American Airlines
AS
Alaska Airlines
DL
Delta Air Lines
UA
United Airlines
Alternative Routes
Other ways to fly from Seattle to Chicago with one stop · direct emits 291 kg CO₂ per passenger
Looking for the return flight?
ORD → SEA: Flights from Chicago to SeattleOther direct flights from Seattle
Direct flights from Chicago (ORD)
Frequently Asked Questions
How long is the direct flight from Seattle to Chicago?
A nonstop flight from Seattle (SEA) to Chicago (ORD) takes approximately 4 hours and 11 minutes. The distance is 1,720 miles (2,768 km).
Which airlines fly nonstop from Seattle to Chicago?
4 airlines: American Airlines, Alaska Airlines, Delta Air Lines, United Airlines.
Is there a nonstop flight from Seattle to Chicago?
Yes. 4 airlines: American Airlines, Alaska Airlines, Delta Air Lines, United Airlines.
How far is Seattle from Chicago?
The flight distance from Seattle to Chicago is 1,720 miles (2,768 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Seattle to Chicago?
At 4h 11m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Seattle to Chicago?
Roughly 291 kg CO2 per passenger one-way. That's about the same as driving 1,455 km.
Is the return flight from Chicago to Seattle also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Seattle to Chicago?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Seattle Tacoma International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.