Nonstop flights from Seattle to Houston

2 airlines fly this route, with up to 8 flights a day.

SEASeattle-Tacoma International

1,872 mi · 53 flights a week

IAHHouston George Bush Intercontinental

SEAIAH

When they leave

Seattle time

5:00a11:57pFirst departure 5:00 AM, last 11:57 PM

Four in the morning, 5:00 AM to 11:55 AM, then one afternoon flight at 12:10 PM, then four in the evening, 5:00 PM to 11:57 PM.

Every flight

Earliest first

5:00 AM→11:21 AMUnited AirlinesBoeing 737 MAX 8Mon, Wed, Thu, Fri, Sat, Sun
7:05 AM→1:31 PMUnited AirlinesBoeing 737Daily
10:52 AM→5:16 PMAlaska AirlinesBoeing 737Daily
11:55 AM→6:35 PMUnited AirlinesBoeing 737Mon, Wed, Thu, Fri, Sat, Sun
12:10 PM→6:40 PMUnited AirlinesBoeing 737 MAX 9Tue
5:00 PM→11:26 PMUnited AirlinesAirbus A320Mon, Tue, Wed, Thu, Fri, Sun
5:33 PM→11:59 PMAlaska AirlinesBoeing 737 MAX 9Daily
11:49 PM→6:10 AM⁺¹United AirlinesBoeing 737 MAX 8Mon, Tue, Thu, Fri, Sat, Sun
11:57 PM→6:20 AM⁺¹Alaska AirlinesBoeing 737Daily

Schedules last checked Sep 19, 2026. Times are local.

Flying from Seattle to Houston

United Airlines flies most often, 4 to 5 times a day on the Boeing 737, Boeing 737 MAX 8, Airbus A320 and Boeing 737 MAX 9. Alaska Airlines flies 3 times a day on the Boeing 737 and Boeing 737 MAX 9.

There are 7 or 8 flights every day of the week. The first arrival in Houston is at 11:21 AM and the last at 6:20 AM the next day. The flight covers 1,872 miles.

Flying back, Houston to Seattle has 53 nonstop flights a week.

Return flights

Houston to SeattleView

Find the cheapest day to fly from Seattle to Houston.

Schedules as of Oct 9, 2026.