$32 Find Cheap Flights from San Francisco to Ontario - Compare and Save

If you have lost your item when traveling to ONT, you can visit the lost and found offices. The offices are in terminal 2 just behind the information desk. The lost and found offices operate from Monday through Friday from 7am to 3:30pm.

Yes, there are several electric vehicles charging stations that are easily accessible. The charging stations are located at the domestic garage level 1, Long-term garage 2, and the international garage level 2. The charging stations are available on a first-come, first-served basis.

Yes, SFO airport is child-friendly and you can travel with your children easily. Several nursery spots are located at terminals 1, 2, and 3, international terminal A gates, international terminal main hall, and international terminal G gates. There are shower facilities at the entire airport to enable you to freshen up before traveling with your child.

At ONT airport, there are security screening procedures to guarantee your safety. The security screening commences upon your arrival at the airport. It is advisable to declare all your electronics at the security screening center to avoid inconveniences. The security screening procedures often change; hence it’s advisable to be flexible and adjust accordingly.

Among airlines operating San Francisco to Ontario flights:

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

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

2 airlines operate flights between San Francisco and Ontario. The airlines offering nonstop flights on this route include:
• United Airlines
• Frontier

Flights from San Francisco to Ontario usually depart from San Francisco (SFO) and arrive at Ontario (ONT).

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

• United Airlines: a cabin bag and a checked bag in Economy Class
• Frontier: a cabin bag in Economy Class class
• JetBlue: 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 San Francisco to Ontario:

• Economy Class
• Premium Economy Class
• First Class

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $198 round-trip, compared to $213 via a layover through Denver Intl (DEN).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $24–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A320neo family is used most often on this route, operated mainly by Frontier. Other aircraft seen on the route include Boeing 737 MAX 9 variants.

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

• Phoenix Sky Harbor Intl (PHX) - 50% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 33% of one-stop connections
• Denver Intl (DEN) - 11% of one-stop connections
• Salt Lake City (SLC) - 6% of one-stop connections

Phoenix Sky Harbor Intl (PHX) 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 San Francisco to Ontario route. Monday is the cheapest departure day at $171 round-trip on average, while Sunday is the most expensive at $227, a difference of $56. 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 San Francisco to Ontario route, 17% of flights were delayed in the past 3 months, with delays averaging 2 hours 6 minutes.

Morning is the busiest departure period on San Francisco to Ontario flights, with 34% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 17%, and night flights for 16%.

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 San Francisco to Ontario takes 1h 33m, covering 363 miles.

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

• Earliest: departs at 8:40 am and lands at 10:13 am
• Latest: departs at 9:25 pm and lands at 10:58 pm.

The flight takes about 1h 33m.

Last-minute fares on this route - booked within 2 weeks of departure - run 17% above the route average of $198. Book 5 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 San Francisco to Ontario are currently lower than usual. Average one-way flight prices are about $100, which is 18% below the typical average for this route.

Evening 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 Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 5h 13m, compared with 5h 22m via Las Vegas Harry Reid Intl (LAS) and 5h 33m via Salt Lake City (SLC).

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 San Francisco to Ontario range from $136 to $280, with an average of $198 over the past 12 months. Anything below $136 counts as a good deal.

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