$74 Cheap Flights from Houston (IAH) to Seattle (SEA)

View $74 flight on Sun, Mar 1, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Seattle-Tacoma International Airport (SEA)

Today's featured flight deals from George Bush Intercontinental Airport (IAH) to Seattle-Tacoma International Airport (SEA)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Houston to Seattle (IAH-SEA)

Prices were available within the past 7 days and start at $74 for one-way flights and $148 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Jan 30 - Thu, Feb 5
IAH
Houston
SEA
Seattle
$148 Roundtrip, found 1 hour ago
$148
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Jan 30 from Houston to Seattle, returning Thu, Feb 5, priced at $148 found 1 hour ago
Frontier Airlines
Sun, Jan 25 - Fri, Jan 30
IAH
Houston
SEA
Seattle
$158 Roundtrip, found 3 hours ago
$158
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sun, Jan 25 from Houston to Seattle, returning Fri, Jan 30, priced at $158 found 3 hours ago
Frontier Airlines
Sun, Mar 1 - Thu, Mar 5
IAH
Houston
SEA
Seattle
$165 Roundtrip, just found
$165
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Mar 1 from Houston to Seattle, returning Thu, Mar 5, priced at $165 just found
Frontier Airlines
Mon, Feb 2 - Fri, Feb 6
IAH
Houston
SEA
Seattle
$175 Roundtrip, found 3 hours ago
$175
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Feb 2 from Houston to Seattle, returning Fri, Feb 6, priced at $175 found 3 hours ago
Frontier Airlines
Thu, Jan 29 - Mon, Feb 2
IAH
Houston
SEA
Seattle
$182 Roundtrip, found 1 hour ago
$182
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Jan 29 from Houston to Seattle, returning Mon, Feb 2, priced at $182 found 1 hour ago
Frontier Airlines
Mon, Jan 19 - Sun, Jan 25
IAH
Houston
SEA
Seattle
$184 Roundtrip, found 1 hour ago
$184
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Jan 19 from Houston to Seattle, returning Sun, Jan 25, priced at $184 found 1 hour ago
Frontier Airlines
Thu, Jan 29 - Mon, Feb 2
IAH
Houston
SEA
Seattle
$186 Roundtrip, found 1 hour ago
$186
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Jan 29 from Houston to Seattle, returning Mon, Feb 2, priced at $186 found 1 hour ago
United
Sat, Feb 14 - Fri, Feb 20
IAH
Houston
SEA
Seattle
$198 Roundtrip, found 1 hour ago
$198
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Feb 14 from Houston to Seattle, returning Fri, Feb 20, priced at $198 found 1 hour ago
Alaska Airlines
Tue, Feb 17 - Fri, Feb 20
IAH
Houston
SEA
Seattle
$202 Roundtrip, found 8 hours ago
$202
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Tue, Feb 17 from Houston to Seattle, returning Fri, Feb 20, priced at $202 found 8 hours ago
American Airlines
Sat, Jan 17 - Fri, Jan 30
IAH
Houston
SEA
Seattle
$215 Roundtrip, found 20 hours ago
$215
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Jan 17 from Houston to Seattle, returning Fri, Jan 30, priced at $215 found 20 hours ago

Find the cheapest month to fly from Houston (IAH) to Seattle (SEA)

January is typically the cheapest month to fly

From $121 - $323 per traveler.
Flights from Houston (IAH) to Seattle (SEA)
Origin airport
George Bush Intercontinental
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$148
Distance
1871 mi
Average flight time
2 hours 58 mins

Houston to Seattle Flights

The cheapest times to fly from Houston to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Seattle are during the month of January. You can find some of the cheapest flights from Houston to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Seattle

Sunday is one of the best days to book for cheap flights from Houston to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $74 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight from $74 or cheap return flight from $148 from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
January is the cheapest month to fly from IAH to SEA. Planning your trip for the off-season is often the key to finding a great deal.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
You can fly directly from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) on a United Airlines flight.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
While prices can vary depending on when you travel, United Airlines and Alaska Airlines are often frequently picked for flights between George Bush Intercontinental Airport (IAH) and Seattle - Tacoma Intl. Airport (SEA). You can also compare airlines on Expedia and use the "Sort by" filter to find the lowest fare for your IAH to SEA flight.
How many flights per day from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
With an average of 4 nonstop flights departing from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) every day, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
More travelers fly between IAH and SEA at 9 AM than at any other time of day. Rather skip the crowds? Pick a flight outside the busiest times and there's a chance you'll save on your fare as well.
What day of the week has the most flights from IAH to SEA?
Sunday has the most flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA). Consider leaving on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
Hop on the earliest flight at around 7:35AM UTC-6, departing from George Bush Intercontinental Airport (IAH). You'll be in the air for about 4h 56m, arriving at Seattle - Tacoma Intl. Airport (SEA) at approximately 10:31AM UTC-8.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
It takes approximately 5 hours to fly the 1,850 mi from IAH to SEA.
What airline has the least delays from IAH to SEA?
Consider traveling with United Airlines if you'd like to go straight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) without any delays. This airline has the best track record for punctuality, with an on-time score of 82%. Want to be notified if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
To arrive at Seattle - Tacoma Intl. Airport (SEA) on time, opt for a flight that leaves George Bush Intercontinental Airport (IAH) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from George Bush Intercontinental Airport (IAH)?
Seattle - Tacoma Intl. Airport (SEA) is the only airport in Seattle with direct flights from George Bush Intercontinental Airport (IAH). Browse the available options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from IAH to SEA shortly before your trip is typically more expensive. However, if you're flexible with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an IAH to SEA flight and hotel package?
You'll generally save money by booking an IAH to SEA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred accommodations and flights, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
Typically, you can cancel or reschedule your IAH to SEA flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, go to our Customer Service portal.

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*Available to One Key members.