$90 Cheap United flights Houston (IAH) to Harlingen (HRL)

Finding cheap one-way United Airlines flights from IAH to HRL from $90 on Expedia is a breeze — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $179 for your next adventure.**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 Harlingen in January or September. You could find lower fares with United Airlines during these off-peak times.

Look for cheap United Airlines flights from George Bush Intercontinental Airport (IAH) to Valley Intl. Airport (HRL) one to three months prior to 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 tends to be 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.

United Airlines offers direct flights from George Bush Intercontinental Airport (IAH) to Valley Intl. Airport (HRL), with 28 weekly departures. Just choose the “Nonstop” and “Airline” filters while searching on Expedia to show all direct United Airlines flights to HRL.

Take off from George Bush Intercontinental Airport (IAH) for Valley Intl. Airport (HRL) on a direct United Airlines flight, and you’ll be in the sky for around 1h 27m.

Thursday has the most United Airlines flights from George Bush Intercontinental Airport (IAH) to Valley Intl. Airport (HRL). With 4 daily departures, this is the best day of the week to book something that will fit your plans.

The earliest flight from IAH to HRL with United Airlines leaves at 9:45AM UTC-6. You’ll touch down at 11:19AM UTC-6. The last United Airlines flight of the day leaves at 10:15PM UTC-6 and arrives at 11:36PM UTC-6. With around 20% fewer cancellations for early and mid-morning flights, jetting out early is usually the best option.**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.

When traveling from George Bush Intercontinental Airport (IAH) to Harlingen with United Airlines, you’ll most likely land at Valley Intl. Airport (HRL). This is the airline’s main gateway to the city. Other nearby airports such as Miller Intl. Airport (MFE) and Brownsville-South Padre Island Intl. Airport (BRO) may offer cheaper tickets, so it’s wise to check out all available options on Expedia.

With a rewarding loyalty program, United Airlines is a favorite of many passengers flying from IAH to HRL. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could 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.

Take a United Airlines flight from George Bush Intercontinental Airport (IAH) to Valley Intl. Airport (HRL), and you’ll probably board an Embraer ERJ. Keep in mind though, that the aircraft type can vary depending on operational demands.

Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that. For more information about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to adjust your plans without additional charges, apply the “Changes included” and “No cancel fee” filters when organizing your next trip.