Cheap flights from San Francisco to Ontario

Choose between WN, Frontier Airlines, or United Airlines to find the best price

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Travelers usually depart from San Francisco International, San Francisco, CA Bus Stop, San Francisco, CA - Salesforce Plaza, San Francisco, CA - Fisherman’s Wharf, or San Francisco, CA Train Station when they travel from San Francisco to Ontario. Book your trip to arrive at Ontario International, Montclair (Ontario), Ontario Bus Stop, or Ontario, CA station. The distance between San Francisco and Ontario is 586 km. The most popular airlines for this route are WN, Frontier Airlines, United Airlines, Alaska Airlines, and Delta Air Lines. San Francisco and Ontario have 145 direct flights per week.

Weekly flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights27273015-3115

Fly direct with

Frontier Airlines on Thursdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from San Francisco to Ontario

NameCarrier codeIATA CodePassport needed during bookingAirport check-in closesOnline check-in available
WNSWAWNNoUnknownNo
Frontier AirlinesFFTF9NoUnknownNo
United AirlinesUALUAYesUnknownNo
Alaska AirlinesASAASYesUnknownNo
Delta Air LinesDALDLYesUnknownNo

Frequently asked questions

How long does it take to travel from San Francisco to Ontario?

A one-way nonstop (direct) flight between San Francisco and Ontario takes around 1.4 hours.

What is the flight distance between San Francisco and Ontario?

The flight distance between San Francisco and Ontario is 586 km.

What airlines offer nonstop (direct) flights between San Francisco and Ontario?

Several carriers operate flights between San Francisco and Ontario. Airlines offering nonstop (direct) flights include Frontier Airlines, United Airlines.

What are the most popular routes to and from San Francisco?

Travelers frequently search for route combinations, such as San Francisco and London, Dublin, Manchester, New Delhi, Las Vegas, Glasgow, Athens, Los Angeles, Atlanta, Sydney, Paris, Chicago, Hyderabad, Tahiti, New York, Washington, D.C., Toronto, Denver, Bengaluru, Minneapolis.

What are the most popular routes to and from Ontario?

Travelers frequently search for route combinations, such as Ontario and London, New York, Bangkok, Denver, Sacramento, Taipei, Manila, Toronto, Calgary, Seattle, Las Vegas, San Jose, Orlando, Houston, Macau, Los Angeles, Washington, D.C., Manchester, Detroit, Guadalajara.

What airports are near San Francisco?

The main airport in San Francisco is San Francisco International. It is also served by San Francisco International, Sacramento International, Oakland International, San Jose International, Charles M. Schulz–Sonoma County, Stockton Metropolitan, Merced Regional, Monterey Regional, Buchanan Field.

What airports are near Ontario?

The main airport in Ontario is Ontario International. It is also served by San Diego International, Tijuana International, Ontario International, John Wayne, Hollywood Burbank, Palm Springs International, Long Beach, Santa Barbara Municipal, Imperial County, Meadows Field.

What buses and trains depart from San Francisco?

A number of bus and train companies depart from San Francisco, including Greyhound.

Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Francisco and Ontario?

What is Virtual Interlining and how do I use it?

Which airlines fly between San Francisco and Ontario?

When's the best time to travel between San Francisco and Ontario?

What flights operate between San Francisco and Ontario?

How many airports are there near San Francisco?

How many airports are there near Ontario?

Is it possible to reach San Francisco by bus or train?

What time do nonstop (direct) flights between San Francisco and Ontario depart?

What time do nonstop (direct) flights between San Francisco and Ontario arrive?

What time do flights between San Francisco and Ontario depart?

What time do flights between San Francisco and Ontario arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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