Flights from Ontario/LA, CA to San Francisco, CA

Promo Code

Best Deals on Flights From Ontario/LA, CA (ONT) to San Francisco, CA (SFO)

Nov 2026
from$113*
Last seen: 3 hours ago
One-way/Economy
Dec 2026
from$19*
Last seen: 47 mins ago
One-way/Economy
Jan 2027
from$203*
Last seen: 12 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $19
cmp-daily-histogram-bars-legend-max-price-aria-label $230
Displaying fares for November-2026
  • ONT–SFO: cmp-view-offers-disclaimer. Find Offers
    13

    Fri

    NOV

  • ONT–SFO: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

  • ONT–SFO, Nov 15, 2026: from $189
    15

    Sun

  • ONT–SFO, Nov 16, 2026: from $195
    16

    Mon

  • ONT–SFO: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

  • ONT–SFO, Nov 18, 2026: from $188
    18

    Wed

  • ONT–SFO: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

  • ONT–SFO, Nov 20, 2026: from $116
    20

    Fri

  • ONT–SFO, Nov 21, 2026: from $116
    21

    Sat

  • ONT–SFO, Nov 22, 2026: from $116
    22

    Sun

  • ONT–SFO, Nov 23, 2026: from $116
    23

    Mon

  • ONT–SFO, Nov 24, 2026: from $113
    24

    Tue

  • ONT–SFO, Nov 25, 2026: from $144
    25

    Wed

  • ONT–SFO: cmp-view-offers-disclaimer. Find Offers
    26

    Thu

  • ONT–SFO, Nov 27, 2026: from $165
    27

    Fri

  • ONT–SFO, Nov 28, 2026: from $183
    28

    Sat

  • ONT–SFO, Nov 29, 2026: from $230
    29

    Sun

  • ONT–SFO, Nov 30, 2026: from $151
    30

    Mon

  • ONT–SFO, Dec 1, 2026: from $69
    01

    Tue

    DEC

  • ONT–SFO, Dec 2, 2026: from $81
    02

    Wed

  • ONT–SFO, Dec 3, 2026: from $49
    03

    Thu

  • ONT–SFO, Dec 4, 2026: from $54
    04

    Fri

  • ONT–SFO, Dec 5, 2026: from $58
    05

    Sat

  • ONT–SFO, Dec 6, 2026: from $70
    06

    Sun

  • ONT–SFO, Dec 7, 2026: from $49
    07

    Mon

  • ONT–SFO, Dec 8, 2026: from $19
    08

    Tue

  • ONT–SFO, Dec 9, 2026: from $19
    09

    Wed

  • ONT–SFO, Dec 10, 2026: from $49
    10

    Thu

  • ONT–SFO, Dec 11, 2026: from $106
    11

    Fri

  • ONT–SFO, Dec 12, 2026: from $66
    12

    Sat

    • Range$19-$230

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Ontario/LA, CA to San Francisco, CA on Frontier

    $
    Flights Deals from Ontario/LA, CA to San Francisco, CA on Frontier
    From
    To
    Ontario/LA, CA (ONT)San Francisco, CA (SFO)One-way
    /
    Discount Den Basic Fare    		Departing Mar 9, 2027

    From

    $62

    Last seen: 23 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Ontario/LA, CA San Francisco, CA

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