$139 Cheap United flights West Palm Beach (PBI) to Houston (IAH)

Finding cheap one-way United Airlines flights from PBI to IAH from $139 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our affordable return fares from $229 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.

Begin your search one to three months ahead of your departure date to get cheap fares on United Airlines flights from Palm Beach Intl. Airport (PBI) to George Bush Intercontinental Airport (IAH). 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 cut 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 journeys.*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.

Taking off from PBI at 5:06PM UTC-5, the first United Airlines flight to IAH arrives at 7:09PM UTC-6. Flying earlier in the day means you're less likely to encounter delays or cancellations.* Not an early riser? The last United Airlines flight from PBI to IAH departs at 5:06PM UTC-5 and touches down at 7:09PM 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.

Depart from PBI to IAH with United Airlines and look forward to a host of benefits including a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.