$73 Find Cheap Flights from Ontario to Houston - Compare and Save

The cheapest return flight from Ontario to Houston costs $155 on the route between Ontario (ONT) and Houston George Bush Intcntl Airport (IAH). Over the past month, this route was, on average, 23% cheaper than other Ontario-Houston routes. It is also the most popular route.

When flying from Ontario to Houston, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Fridays and the most expensive ones on Thursdays.

The cheapest month for flights from Ontario to Houston is October, where tickets cost $212 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $408 and $362 respectively.

To get a below average price on the flight from Ontario to Houston, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

In the past 5 days, the cheapest round-trip tickets from Ontario to Houston were found on Frontier ($177) and Southwest ($195).

Frontier connects Ontario to Houston with 7 flights per week and both United Airlines and Southwest also offer 7 flights per week.

Weekly flights between Ontario and Houston historically see delays in approximately 13% of cases, with the average delay over the past year being 121 minutes.

Typically, flights leaving in the morning tend to face fewer delays, whereas flights at night have historically encountered delays more often.

Statistically, Sunday is the day of the week with the fewest delays on this flight route, while Tuesday has typically experienced more delays than other days.

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 7% of their flights encountering any delays.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are 3 nonstop flights that take off from Ontario and land in Houston, with an average flight time of 3h 11m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 21 flights and there are the same amount of flights each day (3).