Trip ideas from Ontario 84 places from Ontario with a recent one-way price. Prices we can stand behind come first, then the cheapest.
Return (165) One-way (84) Fly from somewhere else Narrow it down 62 hidden by travel month Deals worth a look Las Vegas
Las Vegas 5 Jan 2027 · Nonstop
Leaves from Ontario International Airport (ONT) → LAS
From $21 one way From $21 one way
1 traveler · Economy
found 4 days ago
62.8% below the middle price here: the cheapest one-way fare on each of 34 departure dates is usually $23 to $118.
This price is for these exact dates; other dates may cost more.
Miami
Miami 8 Jan 2027
Leaves from Ontario International Airport (ONT) → MIA
From $143 one way From $143 one way
1 traveler · Economy
found 3 days ago
34.4% below the middle price here: the cheapest one-way fare on each of 12 departure dates is usually $175 to $262.
This trip has 2 stops.
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Show all 22 places with recent prices from Ontario The cheapest recent price for each place — per traveler in Economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work