Cheap flights from Seattle to Houston from $144

The month of March is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Seattle, with most prices found around $350. If you are unable to visit Houston George Bush Intcntl Airport during the month of March, then departing from Seattle during the month April is also very affordable. Most momondo users find prices during this month for around $382.

The cheapest day to depart from Seattle to Houston George Bush Intcntl Airport is on a Saturday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Saturday will often find tickets for as low as $538. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Sunday is $659.

Our data shows that the cheapest Seattle to Houston George Bush Intcntl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Houston George Bush Intcntl Airport in the afternoon for as low as $448. Try not to purchase tickets in the evening because they tend to be around $608. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Seattle/Tacoma Intl to Houston George Bush Intcntl for the best Seattle/Tacoma Intl - Houston George Bush Intcntl flight prices

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Seattle for as low as $378 on momondo.

There are 4 cabin classes available to choose from on Seattle to Houston George Bush Intcntl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 6% on your flight if you consider stops on a Seattle to Houston George Bush Intcntl Airport flight.

As of November 2026, prices for Seattle to Houston George Bush Intcntl Airport flights are approximately 13% cheaper when compared to flights at the same time last year.

Frontier is the most popular carrier operating from Seattle/Tacoma Intl to Houston George Bush Intcntl

United Airlines, Alaska Airlines and Frontier are the top three most popular airlines that fly to Houston George Bush Intcntl Airport from Seattle according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Houston George Bush Intcntl Airport. Keep in mind that there are 5 different airlines that fly to Houston George Bush Intcntl Airport on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $348.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 6h 12m.

Dallas (DFW) has the shortest average layover time for this route: 1h 07m.

3 flights are operational daily from Seattle to Houston George Bush Intcntl Airport as of November 2026. The most popular departure time for this route is 5:00PM, with 52% of flights per day taking off in the afternoon.

26 flights are operational weekly from Seattle to Houston George Bush Intcntl Airport as of November 2026. The most popular departure day for this route is Mon, with 38% of flights per week taking off on this day.