Cheap Southwest Airlines flights Tucson (TUS) to Houston (IAH)

Scoring cheap one-way Southwest Airlines flights from TUS to IAH on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable return fares for your next break.**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 jet off to Houston with Southwest Airlines. You could also find great deals on one-way and round-trip fares in February.

Look for affordable Southwest Airlines flights from Tucson Intl. Airport (TUS) 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 type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be 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.

Simply enter your dates, press search and use the “Nonstop” filter on Expedia to browse any direct flights from TUS to IAH with Southwest Airlines or other airlines.

To find the earliest departures from TUS to IAH with Southwest Airlines, sort your results by “Morning” and “Early Morning.” Choosing an early flight generally means you’re less likely to experience cancellations.**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.

Catch a Southwest Airlines flight from Tucson Intl. Airport (TUS) to Houston, and you’ll likely touch down at George Bush Intercontinental Airport (IAH). This is the airline’s primary hub in this destination.

Depending on your ticket type, a fee may apply if you cancel or reschedule your flight more than 24 hours after it’s been confirmed. To secure flexible fares, select our “No cancel fee” or “Changes included” filter while searching for flights. For more details on canceling or modifying your reservation, visit “Trips,” select your flight and click on “Manage Booking.”