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Ontario California aerial with San Gabriel Mountains
ONT
Ontario
Old San Juan Puerto Rico colorful buildings
SJU
San Juan

Ontario → San Juan

United Airlines · Round Trip · Nonstop

Save $136 (31% off)
Compared to the typical price of $443
$306$443

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
Apr 25, 2026
Returns
May 2, 2026

Price History

Avg: $307
Low: $306
High: $307
Current price is the lowest recorded!
$300$303$307$310Apr 3

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