$199 Cheap United flights Grand Rapids (GRR) to Houston (IAH)

Scoring cheap one-way United Airlines flights from GRR to IAH from $199 on Expedia is simple --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares from $229 for your next exciting getaway.**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.

For cheap United Airlines fares from Gerald R. Ford Intl. Airport (GRR) to George Bush Intercontinental Airport (IAH), start searching one to three months before your intended departure. Securing 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 what you pay. 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.

The first United Airlines flight from GRR to IAH departs at 6:25AM UTC-5, touching down at 8:43AM UTC-6. If you'd like to jet off later in the day, the last United Airlines flight leaves GRR at 6:25AM UTC-5 and touches down at IAH at 8:43AM UTC-6. Flying early is often a good option as 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.

Travel from GRR to IAH with United Airlines and you'll enjoy a range of benefits including a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can 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.