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92 places from Ontario with a recent one-way price. Prices we can stand behind come first, then the cheapest.
From $21 one way
65.3% below the middle price here: the cheapest one-way fare on each of 24 departure dates is usually $51 to $124.
This price is for these exact dates; other dates may cost more.
From $117 one way
38.3% below the middle price here: the cheapest one-way fare on each of 22 departure dates is usually $166 to $240.
This price is for these exact dates; other dates may cost more.
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| City | From | Dates | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| San Francisco SFO | $21 | 5 Dec | ONT → SFO | nonstop | found today | Open this trip |
| San Jose SJC | $55 | 17 Dec | ONT → SJC | nonstop | found 4 days ago | Open this trip |
| Denver DEN | $56 | 10 Dec | ONT → DEN | nonstop | found 4 days ago | Open this trip |
| Las Vegas LAS | $58 | 16 Dec | ONT → LAS | nonstop | found yesterday | Open this trip |
| St Louis STL | $88 | 4 Dec | ONT → STL | 1 stop | found 6 days ago | Open this trip |
| Phoenix PHX | $89 | 15 Dec | ONT → PHX | 1 stop | found 3 days ago | Open this trip |
| Houston HOU | $94 | 2 Dec | ONT → IAH | 1 stop |
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
| found 6 days ago |
| Open this trip |
| New York NYC | $117 | 5 Dec | ONT → LGA | stops unknown | found today | Open this trip |
| Seattle SEA | $124 | 12 Dec | ONT → SEA | 1 stop | found 4 days ago | Open this trip |
| Memphis MEM | $140 | 21 Dec | ONT → MEM | 1 stop | found 3 days ago | Open this trip |
| Nashville BNA | $143 | 6 Dec | ONT → BNA | 1 stop | found 5 days ago | Open this trip |
| Orlando ORL | $156 | 13 Dec | ONT → MCO | 1 stop | found 6 days ago | Open this trip |
| Vancouver YVR | $180 | 31 Dec | ONT → YVR | 1 stop | found yesterday | Open this trip |
| Honolulu HNL | $186 | 7 Dec | ONT → HNL | nonstop | found 2 days ago | Open this trip |
| Pittsburgh PIT | $287 | 26 Dec | ONT → PIT | 1 stop | found 6 days ago | Open this trip |
| Fort Lauderdale FLL | $289 | 19 Dec | ONT → FLL | 1 stop | found 4 days ago | Open this trip |
| Miami MIA | $321 | 18 Dec | ONT → MIA | 1 stop | found 2 days ago | Open this trip |
| Paris PAR | $641 | 25 Dec | ONT → CDG | 1 stop | found 6 days ago | Open this trip |