$109 Cheap United flights Houston (IAH) to Jacksonville (JAX)

Set the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines round-trip flights from $217 from IAH to JAX. Affordable one-way fares from $109 are available too.**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.

Start searching one to three months ahead of your departure date to score cheap fares on United Airlines flights from George Bush Intercontinental Airport (IAH) to Jacksonville Intl. Airport (JAX). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*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 first United Airlines flight from IAH to JAX departs at 7:20AM UTC-6, landing at 10:33AM UTC-5. If you'd like to head off later in the day, the last United Airlines flight leaves IAH at 6:34PM UTC-6 and touches down at JAX at 9:45PM UTC-5. Flying before noon is generally a smart choice as morning and mid-morning flights are 20% less likely to be canceled.**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 top pick for many passengers heading from IAH to JAX. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.