$125 Cheap Delta flights Phoenix (PHX) to Houston (IAH)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap Delta Air Lines return flights from $211 from PHX to IAH. Affordable one-way fares from $125 are available as well.**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.

Search for one-way or return flights to Houston in November or February. You could find cheaper fares with Delta Air Lines during these off-peak travel months.

For cheap Delta Air Lines fares from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall cost. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**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.

Fill in your dates, click search and tick the “Nonstop” filter on Expedia to find any direct flights from PHX to IAH with Delta Air Lines or another carrier.

Sort your results by “Morning” and “Early Morning” to find the earliest flights from PHX to IAH. Heading off early means flight cancellations are less likely.**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.

Jump on a Delta Air Lines flight from Sky Harbor Intl. Airport (PHX) to Houston, and you’ll most likely arrive at George Bush Intercontinental Airport (IAH). This is the airline’s main hub here.

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a favorite for many passengers heading from PHX to IAH. What’s more, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of booking, but your airline may add a charge after that time. For further information about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without additional costs, apply the “Changes included” or “No cancel fee” filter when organizing your next escape.