$74 Find Cheap Flights from Houston to Ontario - Compare and Save

Among airlines operating Houston to Ontario 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 Houston and Ontario. The airlines offering nonstop flights on this route include:
• Southwest
• United Airlines
• Frontier

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

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.

Only Economy Class is available on flights from Houston to Ontario.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $228 round-trip, compared to $298 via a layover through Denver Intl (DEN).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

• Dallas/Fort Worth (DFW) - 39% of one-stop connections
• Denver Intl (DEN) - 36% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 21% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 4% of one-stop connections

Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 25% on the Houston to Ontario route. Tuesday is the cheapest departure day at $235 round-trip on average, while Monday is the most expensive at $311, a difference of $76. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

A nonstop flight from Houston to Ontario takes 3h 25m, covering 1,333 miles.

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

• Earliest: departs at 6:10 am and lands at 9:35 am
• Latest: departs at 9:35 pm and lands at 1:00 am.

The flight takes about 3h 25m.

Last-minute fares on this route - booked within 2 weeks of departure - run 43% above the route average of $245. Book 6 weeks before departure for the lowest fares.

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 Houston to Ontario are currently lower than usual. Average one-way flight prices are about $113, which is 39% below the typical average for this route.

Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 5h 12m, compared with 5h 51m via Dallas/Fort Worth (DFW) and 7h 20m via Las Vegas Harry Reid Intl (LAS).

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

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
· Fox
· Thrifty
· Europcar
· Dollar
· Alamo

Round-trip flights from Houston to Ontario range from $161 to $388, with an average of $245 over the past 12 months. Anything below $161 counts as a good deal.

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