Cheap flights from Ontario to Houston from $106
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Houston departing on 6/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Houston
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Southwest flights from Ontario to Houston
Our best Southwest deals on Ontario to Houston flight tickets
Delta flights from Ontario to Houston
Our best Delta deals on Ontario to Houston flight tickets
See travel insights to Houston from
How to get the cheapest flight ticket from Ontario to Houston
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Houston?
The month of October is, on average, the cheapest month to fly to Houston from Ontario, with most prices found around $182. The month of September is another great option to travel to Houston, with average flight prices from Ontario averaging around $184.
What is the cheapest day to depart on your flight to Houston?
On average, the least expensive day to fly to Houston from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $382. However, this price may fluctuate depending on the airline, the season, and holidays. 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 on Sunday is $484.
What is the cheapest time of day to depart on your flight to Houston?
Our data shows that the cheapest Ontario to Houston flights are usually those with departure times at noon. Our users have found flights to Houston at noon for as low as $267. Try not to purchase tickets in the evening because they tend to be around $455. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Ontario to Houston flight route?
Fly from Ontario to Houston George Bush Intcntl for the best Ontario - Houston flight prices
How far in advance should I book a flight to Houston?
You are more likely to see cheaper flights to Houston from Ontario when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $234 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Ontario for as low as $192 on momondo.
What cabin class options are available on Ontario to Houston flights?
There are 4 cabin classes available to choose from on Ontario to Houston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to Houston?
Frontier, United Airlines, and Southwest are the most popular carriers operating from Ontario to Houston
What airlines fly to Houston?
Spirit Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Houston from Ontario according to our data. Spirit Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Houston. Keep in mind that there are 7 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Houston on average per day?
As of June 2025, there are 1 flights per day flying from Ontario to Houston. The most common time of day flights depart is 6:00AM, with 61% of flights taking off at noon.
How many flights depart from Ontario to Houston on average per week?
The number of flights available between Ontario and Houston is 12 per week as of June 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.
Cheap Ontario to Houston flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Houston
How far is Ontario to Houston by plane?
Ontario and Houston are 1336.6 mi apart from one another. Typically, this will take 3h 00m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Houston?
Prices for flights from Ontario Airport to Houston were last updated today.
How many operators does momondo search for flights from Ontario Airport to Houston?
As of June 2025, there are 6 operators available to choose from for flights from Ontario Airport to Houston.
How old do you have to be to fly from Ontario Airport to Houston?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Houston.
What documentation or ID do you need to fly to Houston?
The necessary travel and health documents for your Houston trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Ontario to Houston
Compare and see reviews for airlines that fly from Ontario to Houston with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $74 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $77 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $173 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $188 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $192 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $258 | Free Cancellation | Rating 8.0 4,287 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Houston?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Houston. momondo saves you time and could save you money on your trip.
Can I find flights from Ontario to Houston with flexible booking policies on momondo?
Yes. All flights to Houston from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ontario to Houston?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Houston from Ontario.
I’m not ready to book a flight from Ontario to Houston right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Houston, momondo offers a useful price alert feature which will track prices for flights to Houston from Ontario and alert you when they change.