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United States · ONT

Cheap flights from Ontario from US$25

From Ontario you can fly nonstop to 24 destinations, and reach 274 mores with one connection. Pick a destination for fares, airlines and the best way to get there.

Scenic autumn view of Niagara River, showcasing vibrant foliage and city skyline.
OntarioPhoto: Virooshan Theva / Pexels

Cheapest flights from Ontario right now

Lowest one-way fares found recently. Prices change; tap through for live fares.

The Golden Gate Bridge in San Francisco seen from the headlandsNonstopSan FranciscoUnited StatesOne-way fromUS$25Stunning view of Denver's cityscape with skyscrapers under a colorful sunset sky.NonstopDenverUnited StatesOne-way fromUS$32Dynamic view of Las Vegas skyline with bustling street traffic and modern skyscrapers.NonstopLas VegasUnited StatesOne-way fromUS$55Captivating view of Dallas skyline with Reunion Tower from a rooftop pool at daytime.NonstopDallasUnited StatesOne-way fromUS$88A woman sits on a rock formation overlooking Phoenix, Arizona at sunset, embracing nature and tranquility.NonstopPhoenixUnited StatesOne-way fromUS$103Breathtaking view of Seattle's iconic skyline with the Space Needle and Mount Rainier in the background.NonstopSeattleUnited StatesOne-way fromUS$106Captivating view of Seattle skyline and Puget Sound with cloudy sky and lush greenery in the foreground.1+ stopBainbridge IslandUnited StatesOne-way fromUS$106The reflective Cloud Gate sculpture in Chicago surrounded by iconic skyscrapers.NonstopChicagoUnited StatesOne-way fromUS$114

Nonstop flights from Ontario

24 destinations, busiest first.

Connecting flights from Ontario

No direct flight, but people search these often. Each page shows the best place to change.

Flying from Ontario: questions answered

Where can you fly nonstop from Ontario?
There are nonstop flights from Ontario to 24 destinations, including Denver, Las Vegas, Phoenix, Dallas and Sacramento.
What are the cheapest flights from Ontario?
The lowest one-way fares we found recently are to San Francisco (US$25), Denver (US$32), Las Vegas (US$55) and Dallas (US$88).
Which places need a connection from Ontario?
Popular destinations with no direct flight include Miami, Orlando, Washington, Boston and San Antonio. Each route page shows the best place to change planes.
Which airports serve Ontario?
Ontario is served by ONT. Searching "Ontario (ONT)" covers all of them.