Cheap Flights from Houston to Seattle

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Flight deals from Houston to Seattle

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

Find the cheapest month to fly from Houston to Seattle

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

Direct flights from Houston to Seattle

Houston to Seattle: Flight information

The things to know before you go.
Cheapest flight found$295
Cheapest month to flyMarch
Average flight time4 hrs, 47 mins
Most popular airlineUnited
Average flights per week460

Finding cheap flights from Houston to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Houston to Seattle is $295. 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 46 minutes is the average flight time from Houston to Seattle.
United, Air Tahiti Nui and Qatar Airways fly direct from Houston to Seattle.
As of February 2026, there are 460 flights per week flying from Houston to Seattle.
The cheapest month to fly from Houston to Seattle is usually March.
If you're flying from Houston, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $295.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Seattle on Tuesday, 24 March 2026.
Yes – the average flight time is 4 hours and 46 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 Seattle 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 Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 4°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
The cheapest airline that flies to Seattle is United .

Travelling from Houston to Seattle: what you need to know

  • Start your trip planning by checking out the most convenient departure point for your flight from Houston to Seattle. Explore your options for taking off from George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU), two of the city's main airports.

  • Seattle-Tacoma International Airport (SEA) is where your flight will arrive in Seattle.

  • Around 4 hours 40 minutes is how long you can expect to be travelling on a direct Houston to Seattle flight.

  • The timezone in Seattle is UTC-7, which is two hours behind Houston.

  • The most popular route for flights from Houston to Seattle is from George Bush Intercontinental Airport (IAH) to Seattle-Tacoma International Airport (SEA). Take your pick of 40 weekly services between these two airports. If you want to head off as soon as possible, the earliest flight from IAH to SEA is the 06:00 Alaska Airlines service. If you have other commitments or plans on your day of travel, the last departure is at 20:13 with United Airlines.

  • For a relaxed travel experience, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your Houston to Seattle flight.

  • Be prepared for longer lines during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a good idea.

How to find the cheapest flights from Houston to Seattle

  • To secure cheap Houston to Seattle flights, reserve your journey three months ahead of your planned departure.

  • June is the best month for nabbing a fantastic deal on a plane ticket from Houston to Seattle. If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • There's no need to check back in every day to find out if prices have dropped when you create a Price Alert. We'll notify you when there's a better deal on cheap flights from Houston to Seattle.

  • Save on your Houston to Seattle flight with the help of our filters. Choose your preferred departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from Houston

George Bush Intercontinental Airport (IAH)

  • You can book a direct flight from Houston to Seattle taking off from George Bush Intercontinental Airport (IAH). Begin your trip at IAH and land at Seattle-Tacoma International Airport (SEA).

  • United Airlines is a well-known airline that offers direct Houston to Seattle plane tickets leaving from IAH.

  • IAH is about 21 kilometres from central Houston. If you're ride-sharing, catching a cab or driving from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 50 minutes.

  • After an easy start to your journey? Stay near George Bush Intercontinental Airport. Whether you're boarding an early flight from Houston to Seattle or just don't want to be rushed, these hotels are the answer:

  • Of the flights that depart from George Bush Intercontinental Airport, 78.42% touch down on time at their destination.

  • IAH's address is 16930 JFK Boulevard.

William P. Hobby Airport (HOU)

  • You can take a nonstop flight from Houston to Seattle departing from William P. Hobby Airport (HOU). Begin your travels at HOU and touch down at Seattle-Tacoma International Airport (SEA).

  • Southwest Airlines offers direct Houston to Seattle plane tickets from HOU. Book your favourite seat and reach your destination in a single hop.

  • HOU is about 16 kilometres from central Houston. It takes 20 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 1 hour 40 minutes.

  • You're going on holiday, so why not extend it with an extra night away? Consider staying at one of these hotels near William P. Hobby Airport the day before your flight from Houston to Seattle:

  • The majority of flights that depart William P. Hobby Airport get to their destination on schedule. It boasts a strong on-time performance rate of 81%.

  • The street address for HOU is 7800 Airport Boulevard.

Arriving in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle takes about 20 minutes to reach by car. The centre is roughly 19 kilometres away.

  • Travelling to the centre by public transport takes roughly 55 minutes.

  • If you're coming in on a late flight from Houston to Seattle, nothing beats the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and relaxing not long after at one of these hotels near SEA:

  • Grab a Seattle-Tacoma International Airport rental car and discover Seattle and beyond with your own set of wheels. Thrifty, Europcar and Budget are well-known companies you can book with here.

  • Booking your ride from Seattle-Tacoma International Airport around one week in advance boosts your odds of scoring a great price.

Lake Union Sea Plane Base Airport (LKE)

  • The centre of Seattle is around 3 kilometres from Lake Union Sea Plane Base Airport (LKE). Once your flight from Houston to Seattle has touched down and you've made your way to arrivals, expect a drive of around 10 minutes.

  • The journey will take approximately 25 minutes on public transport.

  • After your flight from Houston to Seattle, unwind at a hotel near LKE. These are some great options that'll help you get into relaxation mode:

Best time to go to Seattle

  • It's time to plan your trip dates for your flight from Houston to Seattle. July is the most popular month for a trip to Seattle. If you like a more relaxed vibe, go in May.

  • Before locking in your Houston to Seattle tickets, consider the kind of weather forecast you're hoping for. August is the warmest month in Seattle, with temperatures ranging from 12ºC to 28ºC.

  • February has average temperatures of between -1ºC and 11ºC. Look for cheap flights from Houston to Seattle around that time if you like cooler conditions.

More about Seattle

Explore more of United States

  • Seattle has plenty to offer, but there are so many other parts of United States you'll want to see. Around 241 kilometres south of Seattle, a trip to Portland will fill your itinerary to the brim. Start with popular sights like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • If there's time to check out another major destination in United States, head for Spokane, roughly 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are among the biggest draws.

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