3 airlines fly nonstop from Seattle to Houston.
Checking today’s fares with the airlines.
| Airline | From | To |
|---|---|---|
| Alaska Airlines | SEA Seattle-Tacoma International Airport | IAH George Bush Intercontinental Airport |
| United Airlines | SEA Seattle-Tacoma International Airport | IAH George Bush Intercontinental Airport |
| Southwest AirlinesSeasonal | SEA Seattle-Tacoma International Airport | HOU William P. Hobby Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
23 miles (37 km) from the city centre. 48.4 million passengers in 2024
| How | Route | Cost |
|---|---|---|
| Bus | METRO Route 500 IAH Downtown Direct to the George R. Brown Convention Center | $4.50 one way |
| Bus | METRO Route 102 Bush IAH Express via Greenspoint and I-45 | $1.25 (local fare) |
7 miles (11 km) from the city centre. 14.6 million passengers in 2024
| How | Route | Cost |
|---|---|---|
| Bus | METRO bus 40 to downtown | $1.25 (local fare) |
No passport or visa is needed for domestic travel, but a REAL ID-compliant license or another accepted ID is required to fly within the US.
Houston is 2 hours ahead of Seattle. Houston uses the US dollar (USD).
Read the Houston guide: when to go, weather, airports and tips
Nonstop flight times vary by airline and season; flights with a connection take longer.
As of October 2026, Alaska Airlines, United Airlines and Southwest Airlines fly this route nonstop, some of them seasonally.
Nonstop flights leave from Seattle-Tacoma International Airport (SEA) and arrive at George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).
About 1,890 miles (3,041 km), measured between the city centres.
Houston is 2 hours ahead of Seattle.
No passport or visa is needed for domestic travel, but a REAL ID-compliant license or another accepted ID is required to fly within the US.
METRO Route 500 IAH Downtown Direct to the George R. Brown Convention Center, $4.50 one way.
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.