$269 Cheap Frontier Airlines flights Ontario (ONT) to San Juan (SJU)

$269 Cheap Frontier Airlines flights Ontario (ONT) to San Juan (SJU)

Prices were available within the past 7 days and start at $269 for one-way flights and $692 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 28 - Tue, Sep 2

ONT

Ontario

SJU

San Juan

$692 Roundtrip, found 16 hours ago

$692

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Ontario to San Juan, returning Tue, Sep 2, priced at $692 found 16 hours ago

Thu, Aug 28 - Tue, Sep 2

ONT

Ontario

SJU

San Juan

$709 Roundtrip, found 16 hours ago

$709

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Ontario to San Juan, returning Tue, Sep 2, priced at $709 found 16 hours ago

Thu, Aug 28 - Tue, Sep 2

ONT

Ontario

SJU

San Juan

$733 Roundtrip, found 16 hours ago

$733

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Ontario to San Juan, returning Tue, Sep 2, priced at $733 found 16 hours ago

Thu, Aug 28 - Tue, Sep 2

ONT

Ontario

SJU

San Juan

$747 Roundtrip, found 16 hours ago

$747

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Ontario to San Juan, returning Tue, Sep 2, priced at $747 found 16 hours ago

Thu, Aug 28 - Tue, Sep 2

ONT

Ontario

SJU

San Juan

$756 Roundtrip, found 16 hours ago

$756

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Ontario to San Juan, returning Tue, Sep 2, priced at $756 found 16 hours ago

Thu, Aug 28 - Tue, Sep 2

ONT

Ontario

SJU

San Juan

$759 Roundtrip, found 16 hours ago

$759

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Ontario to San Juan, returning Tue, Sep 2, priced at $759 found 16 hours ago