Cheap Flights from Ontario to Houston

Cheapest flights from Ontario to Houston

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Ontario to Houston. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$66

Frontier Airlines

1 layover

1d 1h 20m

09/21/2026

The cheapest one-way flight from Ontario to Houston departs on 09/21/2026, is operated by Frontier Airlines and costs $66

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Ontario to Houston

The fastest flight

3h 12m

Fastest flight from Ontario to Houston takes 3h 12m

Direct flights

Several times a week

There are direct flights on this route 2 days a week: Mo and Fr

Earliest flight

5:45 AM

Latest flight

2:40 PM

Direct flights count

12

Distance

2149km

Timezone difference

2h

The distance between Ontario and Houston is 2149km (1332 miles). There are 12 direct flights from Ontario to Houston. The time difference between Ontario and Houston is 2h. Flights from Ontario begin at 5:45 AM. The latest flight from Ontario departs at 2:40 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Ontario to Houston by month

The minimum one-way ticket price from Ontario to Houston is $60 (August 2026), while the maximum is $217 (April 2027). On average, a ticket costs $115–$119.

August 2026

Lowest price

on average:

$60

April 2027

Highest price

on average:

$217

Avg Price

Price dynamics

Prices on the Ontario — Houston route are consistently going up. From August 2026 to April 2027, tickets went from $60 to $217 — a 259% increase. This trend is worth considering when planning your trip.

Cheaper and more expensive periods

The most significant price increase was from August 2026 to April 2027 — up 259%. The best time to fly is August 2026–September 2026, when the average price is $72. In October 2026–April 2027, tickets cost around $166.

Best time to buy

Given the rising prices, it's best not to delay your purchase. Flying in August 2026–September 2026 can save you up to 56% compared to the most expensive months.

Price predictability

Price variation across months on this route is 50.1%. Your choice of departure month significantly affects the total flight cost.

Airlines operating on route

The route Ontario — Houston is served by several airlines: Frontier Airlines, Southwest Airlines, and United Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $66 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.

Frontier Airlines

starting at $66

Southwest Airlines

starting at $237

United Airlines

starting at $152

Non-stop flights from Ontario to Houston

A non-stop flight is the most convenient and comfortable way to fly from Ontario to Houston, despite the fact that sometimes flights with transfers can cost significantly less.

Ontario — Houston

ONT — HOU

08/28/2026

Departure

Direct flight

F92412

starting at $388

Ontario — Houston

ONT — HOU

08/31/2026

Departure

Direct flight

WN3453

starting at $574

Ontario — Houston

ONT — HOU

10/16/2026

Departure

Direct flight

UA2267

starting at $152

Ontario — Houston

ONT — HOU

09/21/2026

Departure

Direct flight

WN3453

starting at $237

Schedule of direct flights from Ontario to Houston

There are most likely no direct flights on the Ontario — Houston route

Ontario airports overview

Ontario International Airport

•

ONT

5km

Serves Ontario and the Inland Empire region of Southern California, offering domestic and select international flights; convenient for travelers to Los Angeles, San Bernardino and nearby business centers.

•

Houston airports overview

Andrau Airpark

•

AAP

29km

William P. Hobby Airport

•

HOU

16km

George Bush Intercontinental Airport

•

IAH

25km

Houston's main international gateway, offering extensive domestic and international routes with multiple terminals and reliable onward connections across the Americas and beyond.

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Ontario to Houston?

The cheapest flight ticket from Ontario to Houston according to data for the last 48 hours costs $66

When is the best time to buy air tickets on the route Ontario — Houston?

Often the best time to buy tickets from Ontario to Houston is 2 months before departure.

When is the cheapest time of year to fly from Ontario to Houston?

Based on statistics over the past years, the lowest prices for flights from Ontario to Houston can be found flying in these months: August, September, October.

How long does it take to fly from Ontario to Houston?

The fastest flights from Ontario to Houston start from 3 hours 12 minutes in the air.

Which airline can fly direct from Ontario to Houston?

The following airlines operate direct flights on the route Ontario — Houston: Frontier Airlines, Southwest Airlines, United Airlines

Special offers and sales on air tickets from Ontario to Houston

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

Ontario — Houston

September 23

Frontier Airlines

$104

Alternative routes

•••••••••••••••••••

Cheapest one way flight

$66

Frontier Airlines

1 layover

1d 1h 20m

09/21/2026

The cheapest one-way flight from Ontario to Houston departs on 09/21/2026, is operated by Frontier Airlines and costs $66

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Ontario to Houston

The fastest flight