$72 Find Cheap Flights from Ontario to Houston - Compare and Save

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.

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

• Southwest
• United Airlines
• Frontier

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).

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 travelers should check the fare details before booking.

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

• Economy Class
• Premium Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $247 round-trip via Denver Intl (DEN), compared to $303 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.

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

• Denver Intl (DEN) - 31% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 30% of one-stop connections
• Dallas/Fort Worth (DFW) - 19% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 10% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 24% on the Ontario to Houston route. Thursday is the cheapest departure day at $285 round-trip on average, while Monday is the most expensive at $374, a difference of $89. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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 2 hours 25 minutes.

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%.

Some of the most popular sights in Houston are Downtown Houston, George R. Brown Convention Center and Galleria Mall. These are among the most viewed places in Houston on KAYAK.

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

• Earliest: departs at 6:00 am and lands at 9:10 am
• Latest: departs at 6:47 pm and lands at 9:57 pm.

The flight takes about 3h 10m.

Last-minute fares on this route - booked within 2 weeks of departure - run 18% above the route average of $304. Book 9 weeks before departure for the lowest fares.

A nonstop flight from Ontario to Houston takes 3h 10m, 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.

One-way fares from Ontario to Houston are currently lower than usual. Average one-way flight prices are about $113, which is 36% below the typical average for this route.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 5h 01m, compared with 5h 17m via Phoenix Sky Harbor Intl (PHX) and 5h 44m via Dallas/Fort Worth (DFW).

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

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
· Hertz
· Thrifty

Near Houston Hobby Airport (HOU) — daily rates from around $20:

· Thrifty
· Dollar
· Alamo
· Hertz
· Budget

Round-trip flights from Ontario to Houston range from $211 to $419, with an average of $304 over the past 12 months. Anything below $211 counts as a good deal.

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