SFO → ONT from $45 round-trip

Flight deal

SFO → ONT from $45 round-trip

SFO → ONTUSD 45Frontier AirlineseconomyRound-tripGreat · 88/100

Score basis: 63% below the 7-fare median of $122.

Live fare — price verified 5h ago.

Travel: 2027-01-07 – 2027-01-09
Book by: 11/4/2026
Booked via: Travelpayouts partner feed
Operated by: Frontier Airlines

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Last verified: 11/2/2026, 6:10:03 AM · Source: travelpayouts_api