Cheap Flights from Seattle to Houston George Bush Intercntl.

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Flight deals from Seattle to Houston George Bush Intercntl.

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

Find the cheapest month to fly from Seattle to Houston George Bush Intercntl.

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

Direct flights from Seattle to Houston George Bush Intercntl.

Seattle to Houston George Bush Intercntl.: Alternative routes

Compare routes from Seattle to Houston below. You may find an airport to fly into that's cheaper, faster, or easier than Houston George Bush Intercntl..

Seattle to Houston: Flight information

The things to know before you go.
Cheapest flight foundR 1,710
Cheapest month to flyAugust
Average flight time4 hrs, 23 mins
Most popular airlineUnited
Average flights per week126

Finding cheap flights from Seattle to Houston George Bush Intercntl.: Frequently asked questions

The best price we found for a return flight from Seattle to Houston George Bush Intercntl. is R 3,845. 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 23 minutes is the average flight time from Seattle to Houston George Bush Intercntl..
United, Air Tahiti Nui and Hawaiian Airlines fly direct from Seattle to Houston George Bush Intercntl..
As of July 2025, there are 126 flights per week flying from Seattle to Houston George Bush Intercntl..
The cheapest month to fly from Seattle to Houston George Bush Intercntl. is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Houston George Bush Intercntl. Airport on Tuesday, 2 September 2025.
Yes – the average flight time is 4 hours and 23 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 George Bush Intercntl. 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.
The cheapest airline that flies to Houston George Bush Intercntl. is United .

Travelling from Seattle to George Bush Intercontinental Airport (IAH): What you need to know

  • Start your adventure at Seattle-Tacoma International Airport (SEA), the main airport in Seattle. Look for flights from Seattle to George Bush Intercontinental Airport (IAH) that depart from this base.

  • Expect to be travelling for 4 hours 20 minutes. That's the average journey time for a direct Seattle to George Bush Intercontinental Airport flight.

  • The timezone in Houston is UTC-5, which is two hours ahead of Seattle. George Bush Intercontinental Airport is located in Houston.

  • The most popular route is from Seattle-Tacoma International Airport (SEA) to George Bush Intercontinental Airport (IAH), with 40 direct services every week. If you're ready to head out sooner, the earliest flight from SEA to IAH is the 5am United Airlines option. If you're looking to take off later, the final departure is at 11:59pm with Alaska Airlines.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport on time to catch your flight from Seattle to IAH.

  • Peak travel periods mean busier airports, so show up even earlier. Give yourself at least two hours before a domestic flight and four hours for international journeys to stay on schedule.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) offers an easy route to your destination. Nonstop flights from Seattle to George Bush Intercontinental Airport (IAH) can be booked from this terminal.

  • You can get away on a direct flight from Seattle to George Bush Intercontinental Airport with United Airlines. This top carrier operates services from SEA.

  • Most passengers choose to fly with United Airlines from SEA to IAH.

  • United Airlines leads the way as the most punctual carrier on this route, with 85.47% of services landing on schedule.

  • SEA is around 23 kilometres from central Seattle. If you're driving, catching a cab or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the journey time to be around 55 minutes.

  • Booked an early flight from Seattle to George Bush Intercontinental Airport? Avoid rushing to the terminal (and enjoy a few extra z's) by staying at one of these hotels close to Seattle-Tacoma International Airport:

  • Seattle-Tacoma International Airport has a solid on-time record, reducing the likelihood of delays. Departures from SEA land at their destination as scheduled 81.27% of the time.

Lake Union Sea Plane Base Airport (LKE)

  • With public transport, you can travel from central Seattle to LKE in about 25 minutes. The terminal is roughly 3 kilometres away, and getting there by car takes approximately 10 minutes.

  • Want to treat yourself to an extra night away before boarding your Seattle to IAH flight? Kick back in a hotel near Lake Union Sea Plane Base Airport before your break officially begins. These stays are calling your name:

About George Bush Intercontinental Airport (IAH)

Getting from George Bush Intercontinental Airport (IAH) to central Houston

  • The centre of Houston is roughly 21 kilometres from George Bush Intercontinental Airport. Travel times by cab or car hire will vary based on traffic conditions and time of day, so do a little research ahead of time.

  • If you're travelling on public transport, expect a journey of about 50 minutes.

How to find the cheapest flights from Seattle to George Bush Intercontinental Airport (IAH)

  • Currently, R 1,710 is the lowest price we've found for a one-way ticket from Seattle to George Bush Intercontinental Airport. The cheapest price for a return flight is R 3,845. Keep in mind fares may change due to demand at the time of booking.

  • Booking ahead of time is often the key to scoring a cheap flight from Seattle to IAH. Airlines adjust prices based on demand, so the closer you get to departure, the more expensive your ticket may be.

  • Affordable Seattle to George Bush Intercontinental Airport tickets are easier to find when your dates are flexible. Use the 'Whole month' tool to compare fares throughout the month and then fly out on the cheapest day.

  • Snapping up a cheap plane ticket from Seattle to IAH is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when there's a better deal.

  • Find the best deal on a flight from Seattle to George Bush Intercontinental Airport with the help of the filters. Choose your ideal arrival and departure times, airlines and number of stops. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best.'

The best time to fly from Seattle to George Bush Intercontinental Airport (IAH)

  • February is the quietest month for flights from Seattle to George Bush Intercontinental Airport (IAH), while July is the busiest. Work out the best time to go to Houston based on whether you prefer a laid-back vibe or a lively atmosphere.

  • When booking your Seattle to IAH plane ticket, consider what kind of weather you prefer. August is the warmest month in Houston, with temperatures ranging from 24ºC (75ºF) to 40ºC (104ºF).

  • For cooler conditions, search for a cheap ticket from Seattle to George Bush Intercontinental Airport in January when temperatures are between 5ºC (41ºF) and 19ºC (66ºF).

More about Houston

Explore more of the United States

  • Austin is just one of the many places in the United States waiting to be explored once you've taken in the sights of Houston. Around 241 kilometres away to the west, top sights here include Texas State Capitol, Central Park and Austin Museum of Art, Downtown.

  • Corpus Christi is another standout destination in the United States and is around 306 kilometres south-west of Houston. No journey is complete without seeing Texas State Aquarium, Bayfront Park and Corpus Christi Cathedral.

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