San Francisco Bay Area to Ontario (ONT) flight deals
San Francisco Bay Area to Ontario (ONT) from $36 round trip, Dec 8 to 15, 2026, Frontier Airlines nonstop, airline price $38. Checked Oct 23, 2026.
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Fare examples by month
Round-trip totals · Economy · USD. Choose a month to see the dates.
| Month | Travelers / trip length | Axel | Airline fare |
|---|---|---|---|
| November 2026 | 1 adult · 7 days | $134 | $142 |
| December 2026 | 1 adult · 7 days | $36 | $38 |
Flights from San Francisco Bay Area · San Francisco Bay Area to United States flight deals
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Fares observed October 23, 2026. USD for the travelers shown. Search a trip for current prices.
November 2026
1 adult · Economy · Round-trip totals
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| From | Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|---|
| SFO | Nov 10–17, 2026 · 7 days | Out: Frontier Airlines 1850 / 1923 · 1 stop (LAS) · 7h 7m · 09:14–16:21 local; Return: Frontier Airlines 2232 / 4401 · 1 stop (LAS) · 3h 45m · 10:35–14:20 local | $134 · Save $8 | $142 | Customer link — Open these flights in Axel · Optional: check axel prices |
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December 2026
1 adult · Economy · Round-trip totals
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| From | Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|---|
| SFO | Dec 8–15, 2026 · 7 days | Out: Frontier Airlines 1160 · Nonstop · 1h 27m · 21:56–23:23 local; Return: Frontier Airlines 1159 · Nonstop · 1h 35m · 19:26–21:01 local | $36 · Save $2 | $38 | Customer link — Open these flights in Axel · Optional: check axel prices |
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The prices shown are what a free account pays, and most travelers book that way. Membership is optional and takes the same flights lower. Live search shows the same free-account price.
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- This page: San Francisco Bay Area to Ontario (ONT) flight deals. Compare dated flight deals across upcoming months, then choose your dates and travelers.
- Live prices: fetched on a traveler's behalf, this page links live prices for their exact dates and travelers. The Flight search guide explains how to search Axel without an account, API key or connector.