Cheap Flights from Seattle / Tacoma International to Houston

Compare Seattle / Tacoma International to Houston flight deals

Find the cheapest month or even day of the year to fly to Houston

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Flight deals from Seattle / Tacoma International to Houston

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Houston? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle / Tacoma International to Houston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Houston flights are currently cheapest in August.

Direct flights from Seattle / Tacoma International to Houston

Alternative Seattle / Tacoma International to Houston routes

Looking for the cheapest, fastest or easiest route from Seattle / Tacoma International to Houston? You could fly into the following airports instead.

Seattle to Houston: Flight information

The things to know before you go.
Cheapest flight foundR 1,796
Cheapest month to flyAugust
Average flight time4 hrs, 20 mins
Most popular airlineUnited
Average flights per week136

Finding cheap flights from Seattle / Tacoma International to Houston: Frequently asked questions

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.
The best price we found for a return flight from Seattle / Tacoma International to Houston is R 3,361. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 20 minutes is the average flight time from Seattle / Tacoma International to Houston.
United, Air Tahiti Nui and Hawaiian Airlines fly direct from Seattle / Tacoma International to Houston.
As of July 2025, there are 136 flights per week flying from Seattle / Tacoma International to Houston.
The cheapest month to fly from Seattle / Tacoma International to Houston is usually August.
If you're flying from Seattle / Tacoma International Airport, the cheapest airport near Houston is Houston George Bush Intercntl. – which is 25.0 km away from the centre of Houston. We've found flights into this airport from R 3,361.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Houston on Thursday, 7 August 2025.
Yes – the average flight time is 4 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.
In July, the average temperature is usually around 29°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
Currently, Spirit Airlines and Hawaiian Airlines offer the cheapest flight tickets to Houston.

Flying from Seattle-Tacoma International Airport (SEA) to Houston: what you need to know

  • Take a direct flight from Seattle-Tacoma International Airport to Houston and you'll be in the air for an average of 4 hours 45 minutes.

  • Seattle-Tacoma International Airport is located in Seattle. Following the UTC-5 timezone, Houston is two hours ahead of Seattle.

  • Seattle-Tacoma International Airport (SEA) to George Bush Intercontinental Airport (IAH) is the most popular route, with 40 weekly departures to pick from. If you have things to do before leaving, the last flight from SEA to IAH is with Alaska Airlines at 23:59. Go for the first departure operated by United Airlines at 05:00 if you want to get on your way earlier.

  • To avoid rushing for your SEA to Houston flight, leave plenty of time for things like baggage drop and finding your gate. Turning up two hours before international departures and an hour before domestic flights is the general rule.

  • Delays at check-in and security are likely if you're heading away during high season, so give yourself a bit more breathing room. A good rule for peak times? Get there up to four hours early for international flights and two hours for domestic departures.

  • You can book a direct Seattle-Tacoma International Airport to Houston ticket. Begin your journey at SEA and land at George Bush Intercontinental Airport (IAH).

  • Top airlines that offer direct flights from Seattle-Tacoma International Airport to Houston include:

  • Located around 18 kilometres from central Seattle, SEA can be reached in about 20 minutes by car (depending on traffic). The journey on public transport takes roughly 55 minutes.

  • Planning to catch an early flight from Seattle-Tacoma International Airport to Houston? Avoid rushing to the airport (and get some extra shut-eye) by choosing one of these hotels close to SEA:

  • 81.27% of flights leaving Seattle-Tacoma International Airport arrive at their destination according to schedule. Given its strong performance rating, you're unlikely to face delays when taking off from SEA.

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Houston

  • The best price we've seen for a one-way Seattle-Tacoma International Airport to Houston flight is R 1,796. The cheapest price for a return flight is R 3,361. Keep in mind fares may change due to demand at the time of booking.

  • Score cheap flights from SEA to Houston by booking one month ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • Plan your trip for May. That's the best month for scoring an incredible deal on Seattle-Tacoma International Airport to Houston tickets. If you're open to different travel dates, use the 'Whole month' tool to find the cheapest price across every month.

  • Cut down on the time spent looking for cheap flights from SEA to Houston by creating a Price Alert. You'll get an email or notification through the app when a lower fare pops up.

  • Tailor your trip with filters. Pick your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Seattle-Tacoma International Airport to Houston.

Airports in Houston

George Bush Intercontinental Airport (IAH)

William P. Hobby Airport (HOU)

  • Central Houston is about 19 kilometres from William P. Hobby Airport (HOU). After your flight from Seattle-Tacoma International Airport to Houston has hit the runway and you've made your way out of the airport, expect a drive of about 20 minutes.

  • If you choose to travel on public transport, you'll reach the centre in 1 hour 40 minutes or so.

  • You'll find some comfortable places to park your luggage (and yourself) near HOU. Tuck yourself in and get cosy after your SEA to Houston flight at any of these well-located options:

  • Easirent, Dollar and Thrifty make picking up a William P. Hobby Airport rental car easy and quick. These companies are located in or around the terminal and will have you behind the wheel before you know it.

  • Score the best price by securing your ride from HOU four weeks in advance. You can also expect to have a wider range of vehicles.

  • The address for William P. Hobby Airport is 7800 Airport Boulevard.

Best time to go to Houston

  • Carefully consider your travel dates before booking your flight from Seattle-Tacoma International Airport to Houston. The city buzzes in high season, but rates are often higher and attractions can be crowded. Visit Houston in the off-season if you like a more relaxed vibe.

  • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your Seattle-Tacoma International Airport to Houston flight ticket then if you enjoy this type of weather.

  • Look for cheap tickets from SEA to Houston in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

More about Houston

  • Start your Houston trip off on the right foot by choosing the ideal place to stay. After booking your flight from Seattle-Tacoma International Airport to Houston, explore our selection of hotels including:

  • There are so many things to discover in this city it can be hard to work out where to start. The Museum of Fine Arts, Houston, Beck Building, The Houston Museum of Natural Science and Hermann Park are popular attractions which should be on every Houston itinerary.

Explore more of United States

  • You've visited Houston, now it's time to discover more of United States. Travel around 306 kilometres west to San Antonio to tick off its leading sights. From The San Antonio River Walk to San Antonio Missions National Historical Park and San Fernando Cathedral, there's plenty to keep you busy.

  • If there's time to check out another side of United States, consider Dallas, about 370 kilometres north of Houston. Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.