$59 Cheap Frontier Airlines flights Ontario (ONT) to Houston (IAH)

Scoring cheap one-way Frontier Airlines flights from ONT to IAH from $59 on Expedia is easy — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $128 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.

Browse for one-way or return flights to Houston in November or February. You could find a cheap fare with Frontier Airlines during these off-peak travel months.

Look for cheap Frontier Airlines flights from Los Angeles - Ontario Intl. Airport (ONT) to George Bush Intercontinental Airport (IAH) one to three months prior to your departure day. 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. Regardless of fare class and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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.

Yes, you can fly from Los Angeles - Ontario Intl. Airport (ONT) to George Bush Intercontinental Airport (IAH) on any of Frontier Airlines’s 2 weekly direct flights. Apply our “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll arrive at IAH at a time that suits you.

It takes approximately 3h 17m to travel nonstop from Los Angeles - Ontario Intl. Airport (ONT) to George Bush Intercontinental Airport (IAH) with Frontier Airlines.

The first flight from ONT to IAH with Frontier Airlines leaves at 11:57AM UTC-8. You’ll touch down at 5:14PM UTC-6. The last Frontier Airlines flight of the day leaves at 12:22PM UTC-8 and arrives at 5:39PM UTC-6. With around 20% fewer cancellations for morning departures, jetting out early is often the smartest 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.

Most Frontier Airlines flights from Los Angeles - Ontario Intl. Airport (ONT) to Houston arrive at George Bush Intercontinental Airport (IAH). This is the airline’s main entry point to this city. It’s worth checking out Expedia for flights to nearby airports such as William P. Hobby Airport (HOU), as tickets may be cheaper.

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to depart from ONT to IAH with Frontier Airlines. Plus, by joining Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It’s yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Most likely, you’ll be flying on an Airbus A320neo for your Frontier Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to George Bush Intercontinental Airport (IAH). However, you may be switched to another aircraft if there are operational changes.

Depending on the ticket type you purchased, a fee generally applies if you modify or cancel your flight more than 24 hours after confirmation. To secure tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when looking for flights. For more details on canceling or modifying your reservation, head to “Trips,” select your flight and click on “Manage Booking.”