Houston to Seattle Flight Time & Schedules

How Much Time Does a Flight from Houston to Seattle Usually Take?

A nonstop flight from Houston to Seattle generally takes around 4 hours 35 minutes to 5 hours 5 minutes, depending on the Houston departure airport, airline and individual schedule. Direct flights to Seattle-Tacoma International Airport (SEA) are available from both George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).

Travelers departing from IAH can fly nonstop with Alaska Airlines or United Airlines. From Hobby Airport, Southwest Airlines provides direct HOU–SEA service.

The direct journey covers roughly 1,883 miles from IAH. Southwest lists the HOU–SEA distance at approximately 1,894 miles, making the two Houston routes similar in length.

One-stop itineraries are also available. Some of the quicker options take approximately 6 hours 20 minutes through Dallas Love Field from Hobby, while selected IAH journeys take about 6 hours 39 minutes via Oklahoma City.

When comparing flights, consider the complete elapsed journey, Houston departure airport and scheduled arrival time. A nonstop option can save around two hours or more compared with many connecting itineraries.

Average Nonstop Journey Length from Houston to Seattle

Most direct Houston-to-Seattle flights require between about four and a half and five hours.For IAH–SEA, current route data lists the shortest nonstop journey at approximately 4 hours 44 minutes, while other published schedules extend to around 5 hours 5 minutes.Southwest gives an average flight time of 4 hours 35 minutes from Hobby Airport to Seattle, while other schedule data places the route at approximately 4 hours 40–45 minutes.

A nonstop journey from George Bush Intercontinental Airport (IAH) to Seattle-Tacoma International Airport (SEA) generally takes approximately 4 hours 44 minutes to 5 hours 5 minutes, depending on the departure.

The route covers around 1,883 miles (3,030 km).
Two airlines currently provide nonstop service on this airport pairing:

Alaska Airlines
United Airlines

Both carriers operate direct IAH–SEA flights, giving travelers the option of reaching Seattle without changing planes.For passengers focused on reducing overall travel time, a nonstop departure from IAH is normally faster than an itinerary involving a mainland connection.

Passengers can also fly directly from William P. Hobby Airport (HOU) to Seattle-Tacoma International Airport.

Southwest Airlines lists the average HOU–SEA flight duration at approximately 4 hours 35 minutes and the distance at around 1,894 miles.

Southwest Airlines operates the nonstop service. Its current route information confirms direct weekday flights between Hobby and Seattle.

For travelers based closer to central or southern Houston, Hobby may offer a convenient alternative to traveling to IAH.

Dallas is one of several possible transfer points for travelers choosing a one-stop journey.

From Hobby Airport, some HOU–DAL–SEA itineraries through Dallas Love Field (DAL) take approximately 6 hours 20 minutes, including the connection.

Passengers departing from IAH can connect through Dallas/Fort Worth International Airport (DFW), with some IAH–DFW–SEA journeys taking around 6 hours 42 minutes.

These journeys add roughly an hour and a half or more compared with many nonstop flights, although actual travel time depends heavily on the layover.

Will Rogers World Airport (OKC) can be one of the quicker connecting points for passengers leaving from IAH.

Current routing information lists some IAH–OKC–SEA journeys at approximately 6 hours 39 minutes, including about an hour between flights.

Denver is another possible connection. Certain IAH–DEN–SEA itineraries take around 6 hours 50 minutes overall.

From Hobby, a Denver connection can take about 7 hours 25 minutes on some schedules.

Since both major Houston airports have nonstop Seattle service, making a connection is not essential. However, one-stop journeys can provide additional fare and departure-time choices.

Possible transfer airports include Dallas, Oklahoma City, Denver, Minneapolis, Sacramento, Austin, Phoenix and Portland, depending on the airline and Houston airport.

Some representative journey times include:

HOU–DAL–SEA: around 6 hrs 20 mins
IAH–OKC–SEA: around 6 hrs 39 mins
IAH–DFW–SEA: around 6 hrs 42 mins
IAH–DEN–SEA: around 6 hrs 50 mins
HOU–DFW–SEA: around 7 hrs 8 mins
HOU–MSP–SEA: around 7 hrs 17 mins

These figures are approximate and can change with the connection length, operating airline and particular departure.

When choosing between connecting options, compare the total journey time rather than only the length of the individual flight segments.

Houston to Seattle Flight Time by Route

Departure Airport	Arrival Airport	Route Code	Estimated Flight Time
William P. Hobby Airport (HOU)	Seattle-Tacoma International Airport (SEA)	HOU–SEA	Around 4 hrs 35 mins–4 hrs 45 mins nonstop
George Bush Intercontinental Airport (IAH)	Seattle-Tacoma International Airport (SEA)	IAH–SEA	Around 4 hrs 44 mins–5 hrs 5 mins nonstop
William P. Hobby Airport (HOU)	Seattle-Tacoma International Airport (SEA)	HOU–DAL–SEA	Around 6 hrs 20 mins with one stop
George Bush Intercontinental Airport (IAH)	Seattle-Tacoma International Airport (SEA)	IAH–OKC–SEA	Around 6 hrs 39 mins with one stop
George Bush Intercontinental Airport (IAH)	Seattle-Tacoma International Airport (SEA)	IAH–DFW–SEA	Around 6 hrs 42 mins with one stop
George Bush Intercontinental Airport (IAH)	Seattle-Tacoma International Airport (SEA)	IAH–DEN–SEA	Around 6 hrs 50 mins with one stop

Current schedule information shows that direct flights are available from both IAH and Hobby, although the airlines operating them differ by airport.
These travel times should be treated as estimates. Wind, weather, air-traffic conditions, ground delays and connection times can all affect the final duration.

Which Airlines Fly Directly from Houston to Seattle?

United Airlines

Alaska Airlines

Southwest Airlines

How Does Seattle's Time Compare with Houston?

Seattle is two hours behind Houston.Houston follows Central Time, while Seattle uses Pacific Time.
Current time-zone data shows Houston at UTC−5 during daylight saving time and Seattle at UTC−7, creating a two-hour difference.

For example, when it is 3:00 PM in Houston, it is 1:00 PM in Seattle.

Both cities observe seasonal clock changes under the U.S. daylight-saving schedule, so the two-hour difference generally remains the same throughout the year.

Because passengers travel westward and move their clocks back by two hours, the local arrival time can make the journey appear shorter than the actual amount of time spent flying.

Explore More Flight Times & Routes

Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below.

Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Houston Flight Times.