Cheap Flights from Houston to Ontario (IAH to ONT)

Swap the bustling Texas energy of Houston for the scenic Southern California sun when you fly from Houston (IAH) to Ontario (ONT). Globitude Travels makes booking your trip effortless with competitive options from trusted carriers. Whether traveling for business or leisure, discover great values with Frontier starting from $222 or United Airlines from $477 for a seamless trip.

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Flying from Houston to Ontario, California

Traveling from George Bush Intercontinental Airport (IAH) to Ontario International Airport (ONT) connects Houston to the heart of Southern California's Inland Empire. Choosing ONT as your destination airport allows you to enjoy a hassle-free arrival experience with quick baggage claim and easy ground transportation access, placing you within easy driving distance of Los Angeles, Orange County, and Palm Springs.

Ontario boasts a comfortable Mediterranean climate with sunny skies for most of the year, making it ideal for outdoor activities and sightseeing. Once you land, explore local dining spots featuring authentic regional Mexican dishes and classic California cuisine, or use the city as a gateway to explore nearby mountain ranges and regional shopping hubs.

Money-saving tips for this route

Book your tickets at least three to four weeks in advance to secure lower Economy rates.
Consider flying on mid-week days like Tuesday or Wednesday when demand is typically lower.
Travel light with Frontier to avoid extra charges for checked bags if you only need a personal item.
Keep your travel dates flexible to compare fare differences between Frontier and United Airlines.

Frequently asked questions

Which airlines offer flights from Houston to Ontario, CA?

Globitude Travels features flights on this route operated by Frontier, with fares starting from $222 in Economy, and United Airlines, with fares starting from $477 in Economy.

What are the airport codes for this flight route?

Flights depart from George Bush Intercontinental Airport (IAH) in Houston and land at Ontario International Airport (ONT) in California.

What is generally the cheapest month to book flights to Ontario?

Off-peak travel periods, particularly late fall and mid-winter months like November and January, generally offer lower rates for travel to Southern California.

Do flights from IAH to ONT have stops?

Flight itineraries on this route may be direct or include connecting stops, depending on the specific airline and schedule you choose.

Can I book my flight from Houston to Ontario over the phone?

Yes, you can call Globitude Travels to speak with a travel agent who can assist you in finding and booking the best available fares for your trip.

Related routes

↩ Ontario to Houston Houston to Amman Houston to Atlanta Houston to Atlantic City Houston to Baltimore Houston to Bar Harbor Houston to Burbank Atlanta to Ontario Augusta to Ontario Austin to Ontario Baton Rouge to Ontario Blountville to Ontario Boise to Ontario All routes →

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Globitude Travels is an independent travel agency — call 1-856-513-6369 or use the search above to compare live fares on this route. See our terms, privacy policy, refund policy and service fees for full details, or contact us any time.

Page updated September 13, 2026 · fare data refreshed automatically from live flight searches.