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Flights from Ontario/LA, CA
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Traveling From Ontario/LA, CA
Take the leap and book the trip you’ve been waiting for. Choose from over 100 destinations across the United States, or fly from the USA to some of your favorite destinations in Mexico and the Caribbean.
Best Flight Deals from Ontario/LA, CA with Frontier
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From | To | |||
|---|---|---|---|---|
| Ontario/LA, CA (ONT) | Las Vegas, NV (LAS) | One-way / Discount Den Basic Fare | Departing Dec 29, 2026 | From $19 Last seen: 10 hours ago |
| Ontario/LA, CA (ONT) | Dallas, TX (DFW) | One-way / Discount Den Basic Fare | Departing Dec 15, 2026 | From $70 Last seen: 6 hours ago |
| Ontario/LA, CA (ONT) | Denver, CO (DEN) | One-way / Discount Den Basic Fare | Departing Feb 3, 2027 | From $24 Last seen: 11 hours ago |
| Ontario/LA, CA (ONT) | San Francisco, CA (SFO) | One-way / Discount Den Basic Fare | Departing Dec 18, 2026 | From $64 Last seen: 2 hours ago |
| Ontario/LA, CA (ONT) | Atlanta, GA (ATL) | One-way / Discount Den Basic Fare | Departing Jan 13, 2027 | From $82 Last seen: 6 hours ago |
| Ontario/LA, CA (ONT) | Seattle, WA (SEA) | One-way / Discount Den Basic Fare | Departing Jan 30, 2027 | From $104 Last seen: 13 hours ago |
| Ontario/LA, CA (ONT) | Orlando, FL (MCO) | One-way / Discount Den Basic Fare | Departing Dec 29, 2026 | From $140 Last seen: 8 hours ago |
| Ontario/LA, CA (ONT) | Portland, OR (PDX) | One-way / Discount Den Basic Fare | Departing Dec 15, 2026 | From $75 Last seen: 14 hours ago |
| Ontario/LA, CA (ONT) | Chicago, IL (ORD) | One-way / Discount Den Basic Fare | Departing Dec 25, 2026 | From $136 Last seen: 3 hours ago |
| Ontario/LA, CA (ONT) | Phoenix, AZ (PHX) | One-way / Discount Den Basic Fare | Departing Dec 16, 2026 | From $56 Last seen: 7 hours ago |
| Ontario/LA, CA (ONT) | San Antonio, TX (SAT) | One-way / Discount Den Basic Fare | Departing Feb 3, 2027 | From $88 Last seen: 13 hours ago |
| Ontario/LA, CA (ONT) | Sacramento, CA (SMF) | One-way / Discount Den Basic Fare | Departing Dec 31, 2026 | From $119 Last seen: 12 hours ago |
| Ontario/LA, CA (ONT) | Salt Lake City, UT (SLC) | One-way / Discount Den Basic Fare | Departing Mar 9, 2027 | From $52 Last seen: 5 hours ago |
| Ontario/LA, CA (ONT) | Miami, FL (MIA) | One-way / Discount Den Basic Fare | Departing Feb 10, 2027 | From $162 Last seen: 12 hours ago |
| Ontario/LA, CA (ONT) | Reno, NV (RNO) | One-way / Discount Den Basic Fare | Departing Dec 16, 2026 | From $53 Last seen: 8 hours ago |
| Ontario/LA, CA (ONT) | San Jose, CA (SJC) | One-way / Discount Den Basic Fare | Departing Jan 18, 2027 | From $66 Last seen: 9 hours ago |
| Ontario/LA, CA (ONT) | Pensacola, FL (PNS) | One-way / Discount Den Basic Fare | Departing Dec 19, 2026 | From $204 Last seen: 11 hours ago |
| Ontario/LA, CA (ONT) | Raleigh, NC (RDU) | One-way / Discount Den Basic Fare | Departing Dec 16, 2026 | From $143 Last seen: 7 hours ago |
| Ontario/LA, CA (ONT) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Jan 22, 2027 | From $113 Last seen: 17 hours ago |
| Ontario/LA, CA (ONT) | San Juan, PR (SJU) | One-way / Discount Den Basic Fare | Departing Jan 7, 2027 | From $198 Last seen: 7 hours ago |
*Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.
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