Direct (nonstop) flights from Kansas City to Seattle
3 airlines fly nonstop from Kansas City International Airport (MCI) to Seattle Tacoma International (SEA). It's 1,488 miles (2,395 km), about 4h 5m in the air. Operated by Alaska Airlines, Delta Air Lines, Southwest Airlines.
Alaska Airlines
Delta Air Lines
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Kansas City to Seattle with one stop · direct emits 251 kg CO₂ per passenger
Looking for the return flight?
SEA → MCI: Flights from Seattle to Kansas CityOther direct flights from Kansas City
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Kansas City to Seattle?
A nonstop flight from Kansas City (MCI) to Seattle (SEA) takes approximately 4 hours and 5 minutes. The distance is 1,488 miles (2,395 km).
Which airlines fly nonstop from Kansas City to Seattle?
3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.
Is there a nonstop flight from Kansas City to Seattle?
Yes. 3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.
How far is Kansas City from Seattle?
The flight distance from Kansas City to Seattle is 1,488 miles (2,395 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Kansas City to Seattle?
At 4h 5m, 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 Kansas City to Seattle?
Roughly 251 kg CO2 per passenger one-way. That's about the same as driving 1,255 km.
Is the return flight from Seattle to Kansas City 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 Kansas City 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 Kansas City International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.