Cheap flights from Ontario to Houston from $63

The month of October is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Ontario, with most prices found around $192. If you are unable to visit Houston George Bush Intcntl Airport during the month of October, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $194.

The cheapest day to depart from Ontario to Houston George Bush Intcntl Airport is on a Saturday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Saturday will often find tickets for as low as $389. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Sunday is $483.

Our data shows that the cheapest Ontario to Houston George Bush Intcntl Airport flights are usually those with departure times at noon. Our users have found flights to Houston George Bush Intcntl Airport at noon for as low as $275. Try not to purchase tickets in the evening because they tend to be around $496. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Ontario to Houston George Bush Intcntl for the best Ontario - Houston George Bush Intcntl flight prices

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Ontario for as low as $205 on momondo.

There are 4 cabin classes available to choose from on Ontario to Houston George Bush Intcntl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Ontario to Houston George Bush Intcntl Airport.

As of August 2026, prices for Ontario to Houston George Bush Intcntl Airport flights are approximately 10% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Ontario to Houston George Bush Intcntl

United Airlines, Frontier and Delta are the top three most popular airlines that fly to Houston George Bush Intcntl Airport from Ontario according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Houston George Bush Intcntl Airport. Keep in mind that there are 5 different airlines that fly to Houston George Bush Intcntl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between Ontario and Houston have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

As of August 2026, there are 2 flights per day flying from Ontario to Houston George Bush Intcntl Airport. The most common time of day flights depart is 9:00AM, with 65% of flights taking off at noon.

The number of flights available between Ontario and Houston George Bush Intcntl Airport is 17 per week as of August 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.