Find cheap flights from Ontario to Houston - Compare and Save

These are the earliest and latest flight times available from Ontario to Houston:

• Earliest: departs at 5:45 am and lands at 8:53 am
• Latest: departs at 6:45 pm and lands at 9:53 pm.

The flight takes about 3h 08m.

Three cabin classes are available on flights from Ontario to Houston:

• Economy Class
• Premium Economy Class
• First Class

A nonstop flight from Ontario to Houston takes 3h 08m, covering 1,333 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Ontario to Houston range from $224 to $420, with an average of $317 over the past 12 months. Anything below $224 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 31% above the $317 route average. Book 10 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $252 round-trip via Denver Intl (DEN), compared to $316 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $37–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Morning is the busiest departure period on Ontario to Houston flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

JetBlue is the only airline on the Ontario to Houston route offering in-flight Wi-Fi. Pricing depends on fare class.

Since Houston is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Houston George Bush Intcntl Airport (IAH) — daily rates from around $3:

• ACO Rent A Car
• Easirent
• America Car Rental
• Thrifty
• Hertz

Near Houston Hobby Airport (HOU) — daily rates from around $25:

• Thrifty
• Dollar
• Alamo
• Hertz
• Ace

Flights from Ontario to Houston usually depart from Ontario (ONT) and may arrive at several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH).

Morning flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Ontario to Houston route, 8% of flights were delayed in the past 3 months, with delays averaging 2h 18m.

One-stop flights from Ontario to Houston most commonly connect through:

• Phoenix Sky Harbor Intl (PHX) - 30% of one-stop connections
• Denver Intl (DEN) - 25% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 14% of one-stop connections
• Dallas/Fort Worth (DFW) - 13% of one-stop connections

Yes. Flexible dates can save you up to 21% on flights from Ontario to Houston. Wednesday is the cheapest departure day at $298 round-trip on average, while Monday is the most expensive at $375, a difference of $77.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

3 airlines operate flights between Ontario and Houston. The airlines offering nonstop flights on this route include:

• Southwest
• United Airlines
• Frontier

Flying via Austin Bergstrom (AUS) gives the shortest average 1-stop total travel time at 4h 47m, compared with 5h 01m via Dallas Love Field (DAL) and 5h 20m via Phoenix Sky Harbor Intl (PHX).

Houston is 2 hours ahead of Ontario (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Houston are George R. Brown Convention Center, Daikin Park and Houston Stadium. These are among the most viewed places in Houston on KAYAK.

Among airlines operating Ontario to Houston flights:

• Frontier: offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Frontier: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Economy Class
• Southwest: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.