Cheap Frontier Airlines flights Ontario (ONT) to San Jose (SJC)

Cheap Frontier Airlines flights Ontario (ONT) to San Jose (SJC)

Prices were available within the past 7 days and start at for one-way flights and $290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Nov 17 - Mon, Dec 1

ONT

Ontario

SJC

San Jose

$290 Roundtrip, found 12 hours ago

$290

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Mon, Nov 17 from Ontario to San Jose, returning Mon, Dec 1, priced at $290 found 12 hours ago

Fri, Nov 7 - Mon, Nov 10

ONT

Ontario

SJC

San Jose

$700 Roundtrip, found 17 hours ago

$700

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Fri, Nov 7 from Ontario to San Jose, returning Mon, Nov 10, priced at $700 found 17 hours ago