$96 Cheap Flights from Seattle (SEA) to Houston (IAH)

View $96 flight on Wed, Jul 16, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Seattle to Houston (SEA-IAH)

Prices were available within the past 7 days and start at $96 for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Jul 15 - Tue, Aug 12
SEA
Seattle
IAH
Houston
$188 Roundtrip, found 18 hours ago
$188
Roundtrip
found 18 hours ago
Select Spirit Airlines flight, departing Tue, Jul 15 from Seattle to Houston, returning Tue, Aug 12, priced at $188 found 18 hours ago
Spirit Airlines
Wed, Jul 16 - Sat, Jul 26
SEA
Seattle
IAH
Houston
$198 Roundtrip, found 2 hours ago
$198
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Wed, Jul 16 from Seattle to Houston, returning Sat, Jul 26, priced at $198 found 2 hours ago
Spirit Airlines
Thu, Aug 7 - Tue, Aug 12
SEA
Seattle
IAH
Houston
$204 Roundtrip, found 3 hours ago
$204
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Thu, Aug 7 from Seattle to Houston, returning Tue, Aug 12, priced at $204 found 3 hours ago
Spirit Airlines
Tue, Jul 29 - Thu, Jul 31
SEA
Seattle
IAH
Houston
$205 Roundtrip, found 19 hours ago
$205
Roundtrip
found 19 hours ago
Select Spirit Airlines flight, departing Tue, Jul 29 from Seattle to Houston, returning Thu, Jul 31, priced at $205 found 19 hours ago
Spirit Airlines
Thu, Aug 7 - Mon, Aug 11
SEA
Seattle
IAH
Houston
$207 Roundtrip, found 2 hours ago
$207
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Thu, Aug 7 from Seattle to Houston, returning Mon, Aug 11, priced at $207 found 2 hours ago
Spirit Airlines
Mon, Jul 21 - Sat, Jul 26
SEA
Seattle
IAH
Houston
$209 Roundtrip, found 13 hours ago
$209
Roundtrip
found 13 hours ago
Select Spirit Airlines flight, departing Mon, Jul 21 from Seattle to Houston, returning Sat, Jul 26, priced at $209 found 13 hours ago
Alaska Airlines
Tue, Aug 12 - Wed, Aug 13
SEA
Seattle
IAH
Houston
$231 Roundtrip, found 21 hours ago
$231
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Tue, Aug 12 from Seattle to Houston, returning Wed, Aug 13, priced at $231 found 21 hours ago
United
Sat, Sep 6 - Tue, Sep 23
SEA
Seattle
IAH
Houston
$237 Roundtrip, found 1 hour ago
$237
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Sep 6 from Seattle to Houston, returning Tue, Sep 23, priced at $237 found 1 hour ago
American Airlines
Sat, Sep 6 - Tue, Sep 23
SEA
Seattle
IAH
Houston
$257 Roundtrip, found 1 hour ago
$257
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Sep 6 from Seattle to Houston, returning Tue, Sep 23, priced at $257 found 1 hour ago
Delta
Sat, Sep 6 - Tue, Sep 23
SEA
Seattle
IAH
Houston
$257 Roundtrip, found 1 hour ago
$257
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Sep 6 from Seattle to Houston, returning Tue, Sep 23, priced at $257 found 1 hour ago

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

October is typically the cheapest month to fly

From $114 - $363 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Houston (IAH)
Origin airport
Seattle - Tacoma Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$188
Distance
1871 mi
Average flight time
6 hours 21 mins

Seattle to Houston Flights

The cheapest times to fly from Seattle to Houston

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 Seattle to Houston are during the month of July. You can find some of the cheapest flights from Seattle to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Houston

Sunday is one of the best days to book for cheap flights from Seattle to Houston: 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 Seattle to Houston

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 Seattle to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $96 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 Seattle to Houston 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 Seattle to Houston 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 Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) cost?
Cheap round-trip flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) start at $242. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving SEA on July 11 2025 and touching down at IAH. The price was last updated on June 24 2025 and has not changed since.
What is the cheapest month to fly from SEA to IAH?
The cheapest flights from SEA to IAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
You can fly straight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) on a United Airlines flight.
What is the cheapest airline that flies from SEA to IAH?
Currently, the cheapest carrier operating one-way flights from SEA to IAH is Alaska Airlines. You can jet off on this route from $127. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on September 13 2025. Prices were last updated on June 24 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
Each day on average, 4 nonstop flights take off from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH). Pick the departure time that best suits your plans.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
Flights between SEA and IAH tend to be busiest at 10 AM. If you'd like a more relaxed experience and possibly cheaper tickets, look for a time when demand is lower.
What day of the week has the most flights from SEA to IAH?
Jet off on a Friday if you're looking for the biggest selection of flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
The earliest flight taking off from Seattle - Tacoma Intl. Airport (SEA) is at around 7:00AM UTC-8. Board this flight and you'll land at George Bush Intercontinental Airport (IAH) at approximately 1:23PM UTC-6. The entire trip takes 4h 23m.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
The average flight duration from SEA to IAH is 4 hours and 25 minutes, covering a distance of 1,850 mi.
What airline has the least delays from SEA to IAH?
Consider traveling with United Airlines if you'd like to fly straight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) without any holdups. This airline has the best track record for punctuality, with an on-time performance of 89%. Want to get notified of any changes? You can check your flight status using the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
Book a flight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) that takes off before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Houston from Seattle - Tacoma Intl. Airport (SEA)?
George Bush Intercontinental Airport (IAH) is the only airport in Houston with direct flights from Seattle - Tacoma Intl. Airport (SEA). Check out your options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) last-minute?
Booking your ticket from SEA to IAH just before your getaway is usually more expensive. However, if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a SEA to IAH flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to IAH flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place will take the hassle out of planning your trip. Just pick your flights and select from our wide range of hotels, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
Generally, it's possible to cancel or reschedule your SEA to IAH flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.