$134 Cheap United flights Cincinnati (CVG) to Houston (IAH)

Set the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines round-trip flights from $209 from CVG to IAH. Affordable one-way tickets from $134 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.

Look for affordable United Airlines flights from Cincinnati - Northern Kentucky Intl. Airport (CVG) to George Bush Intercontinental Airport (IAH) one to three months ahead of your day of departure. 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 journey, the best day to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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.

The earliest United Airlines flight from CVG to IAH departs at 6:20AM UTC-5, landing at 8:17AM UTC-6. If you want to set off later in the day, the last United Airlines flight leaves CVG at 4:52PM UTC-5 and touches down at IAH at 6:50PM UTC-6. Flying earlier is often a smart option as morning flights are least 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.

With a rewarding loyalty program, United Airlines is a popular choice for many travelers heading from CVG to IAH. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.