Direct (nonstop) flights from Chicago to Seattle
1 airline flys nonstop from Chicago Midway International (MDW) to Seattle Tacoma International (SEA). It's 1,733 miles (2,789 km), about 4h 30m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Chicago to Seattle with one stop · direct emits 293 kg CO₂ per passenger
Looking for the return flight?
SEA → MDW: Flights from Seattle to ChicagoOther direct flights from Chicago
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Chicago to Seattle?
A nonstop flight from Chicago (MDW) to Seattle (SEA) takes approximately 4 hours and 30 minutes. The distance is 1,733 miles (2,789 km).
Which airlines fly nonstop from Chicago to Seattle?
Just Southwest Airlines.
Is there a nonstop flight from Chicago to Seattle?
Yes. 1 airline: Southwest Airlines.
How far is Chicago from Seattle?
The flight distance from Chicago to Seattle is 1,733 miles (2,789 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Chicago to Seattle?
At 4h 30m, 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 Chicago to Seattle?
Roughly 293 kg CO2 per passenger one-way. That's about the same as driving 1,465 km.
Is the return flight from Seattle to Chicago 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 Chicago to Seattle?
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 Chicago Midway International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.