$129 Cheap Alaska Airlines flights Seattle (SEA) to Houston (IAH)

Finding cheap one-way Alaska Airlines flights from SEA to IAH from $129 on Expedia is easy — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

November is one of the most affordable months to get away to Houston with Alaska Airlines. You could also find great prices on return and one-way fares in February.

Look for cheap Alaska Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Hop on one of Alaska Airlines’s 14 weekly direct flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH). To see your choices, enter your travel dates, origin and destination and hit search. Next, apply the “Nonstop” and “Airline” filters.

Depart Seattle - Tacoma Intl. Airport (SEA) for George Bush Intercontinental Airport (IAH) on a direct Alaska Airlines flight, and you’ll be in the sky for approximately 4h 29m.

If you’re looking for flexibility, Thursday offers the most choice for Alaska Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH). You can pick from 2 different departures.

Taking off from SEA at 10:01AM UTC-8, the earliest Alaska Airlines flight to IAH arrives at 4:36PM UTC-6. Flying early means you’re less likely to experience delays.* Don’t like early starts? The last Alaska Airlines flight from SEA to IAH departs at 5:43PM UTC-8 and touches down at 11:59PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Alaska Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Houston arrive at George Bush Intercontinental Airport (IAH). This is the main gateway here.

Alaska Airlines makes flying from SEA to IAH more comfortable with top-tier customer service and an excellent in-flight experience. You even have the chance to collect points with Mileage Plan. Be sure to join Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) route, Alaska Airlines typically flies Boeing 737-900 and Boeing 737 MAX 9 planes. Remember that last-minute changes are possible for operational demands, so your flight may be on another aircraft.

Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that time. For more details about altering your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your itinerary without extra charges, check the “No cancel fee” or “Changes included” filter when planning your trip.