SFO → ONT from $34 round-trip

Flight deal

SFO → ONT from $34 round-trip

SFO → ONTUSD 34Frontier AirlineseconomyRound-tripSteal · 96/100

Score basis: 69% below the 9-fare median of $108.

Live fare — price verified 2h ago.

Travel: 2027-01-18 – 2027-01-26
Book by: 11/4/2026
Booked via: Travelpayouts partner feed
Operated by: Frontier Airlines

Book this flight Add a hotel Flight + hotel

Also check on Kiwi

Opens a Kiwi.com search for this route and dates — prices and availability there are set by Kiwi and may differ from the fare above.

This page contains affiliate links. We may earn a commission at no cost to you.

Share Email

More live deals on this route

SFO → ONT

SFO → ONT from $45 round-trip

USD 45

SFO → SAN

SFO → SAN from $57 round-trip

USD 57

SFO → LAS

SFO → LAS from $74 round-trip

USD 74

SFO → PHX

SFO → PHX from $100 round-trip

USD 100

SFO → CHI

SFO → CHI from $134 round-trip

USD 134

SFO → MNL

SFO → MNL from $497 round-trip

USD 497

Last verified: 11/2/2026, 9:10:01 AM · Source: travelpayouts_api