Cheap flights from San Juan to Ontario
3,337 mi · 45m average nonstop
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Quick answer: San Juan to Ontario at a glance
Cheap flights from San Juan (SJU) to Ontario (ONT) cover 3,337 miles (5,369 km) in about 45m nonstop, with 1 airline flying direct — a long-haul international route. Search Kayak for today's cheapest live fare. Route difficulty 6/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from San Juan to Ontario covers 3,337 miles (5,369 km) in approximately 0 hour 45 minutes. 1 airline offers direct flights on this long-haul international route. This is a long-haul international route requiring advance planning for connections and layovers.
Nonstop distance 3,337 miles. Direct carriers include FL.
We don't track historical prices for this route yet. Search live fares on Kayak for today's best price across 100+ airlines and booking sites.
Airlines on this route
1 airlines fly San Juan → Ontario. All are direct routes.
| Airline | Route type |
|---|---|
| FL | Direct |
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San Juan to Ontario — quick answers
How far is San Juan from Ontario by plane?
The nonstop flight distance from San Juan (SJU) to Ontario (ONT) is 3,337 miles (5,369 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from San Juan to Ontario?
The average nonstop flight time from SJU to ONT is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from San Juan to Ontario?
1 airlines serve this route nonstop: FL. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.