Cheap Flights from Houston to Ontario starting at S$ 27

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Houston to Ontario

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When to buy flight tickets from Houston (HOU) to Ontario (ONT) the cheapest?

Airlines adjust prices for flights from Houston to Ontario based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from Houston (HOU) to Ontario (ONT) cost?

According to Trip.com's data, the lowest price is around S$ 319.
What's the most popular airline for direct flights from Houston (HOU) to Ontario (ONT)?

United Airlines operates 2 direct flights from Houston (HOU) to Ontario (ONT).

How to find a cheap flight from Houston to Ontario

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Houston to Ontario. Book your flights at the right time and save more.

Choose your dates flexibly and get the best deals on flights from Houston to Ontario.

Tap 'Date' on the flight search bar to browse the calendar for Houston to Ontario airfare over the next 6 months in 2025. If you're looking to fly within the next 3 months, the cheapest date seems to be Sat, Apr 12, with one-way flights starting at S$ 27.

Compare cheap flight deals from hundreds of airlines for Houston to Ontario flights.

Our extensive search lets you compare prices from over 500 airlines to find the cheapest flights from Houston to Ontario. The cheapest flight at the moment is with Frontier Airlines.

Set up a Price Alert

Set up a Price Alert for your Houston to Ontario flights and track ticket prices easily—no need for daily checks.

Don't miss out on cheap deals and promo codes for Houston to Ontario flights.

You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership for more exclusive flight deals.

Book early or wait for last-minute deals.

It's always better to book early. Flight tickets are often at their lowest when first released, usually a year ahead of departure. Keep an eye out as soon as your desired flights open for booking. If you miss the early deals, you may still find lower prices closer to your travel date.

Search for flights on the go.

For the best flight booking experience on the go, download Trip.com and search for cheap flights from Houston to Ontario to get your exclusive deals.

Find cheapest flight ticket from Houston to Ontario

Cheapest one-way flight price	S$ 27
Cheapest return ticket price	S$ 70
Off-season for travel	February
Peak season for travel	February
Flight distance	10,519.53km
Popular airline	United Airlines