SFO → ONT from $41 round-trip

Flight deal

SFO → ONT from $41 round-trip

SFO → ONTUSD 41Frontier AirlineseconomyRound-tripGood · 74/100

Score basis: 53% below the 7-fare median of $87.

Live fare — price verified 49 min ago.

Travel: 2026-09-17 – 2026-09-24
Book by: 8/28/2026
Booked via: Travelpayouts partner feed
Operated by: Frontier Airlines

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Last verified: 8/26/2026, 6:10:01 AM · Source: travelpayouts_api