Direct (nonstop) flights from Houston to Seattle
1 airline flys nonstop from William P. Hobby Airport (HOU) to Seattle Tacoma International (SEA). It's 1,893 miles (3,046 km), about 4h 40m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 24, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Houston to Seattle with one stop · direct emits 320 kg CO₂ per passenger
Looking for the return flight?
SEA → HOU: Flights from Seattle to HoustonOther direct flights from Houston
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Houston to Seattle?
A nonstop flight from Houston (HOU) to Seattle (SEA) takes approximately 4 hours and 40 minutes. The distance is 1,893 miles (3,046 km).
Which airlines fly nonstop from Houston to Seattle?
Just Southwest Airlines.
Is there a nonstop flight from Houston to Seattle?
Yes. 1 airline: Southwest Airlines.
How far is Houston from Seattle?
The flight distance from Houston to Seattle is 1,893 miles (3,046 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What type of aircraft flies from Houston to Seattle?
At 4h 40m, 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 Houston to Seattle?
Roughly 320 kg CO2 per passenger one-way. That's about the same as driving 1,600 km.
Is the return flight from Seattle to Houston 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 Houston 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 William P. Hobby Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.