Book United San Francisco to Ontario flight deals from $231

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Search flights from San Francisco to Ontario (SFO - ONT)

November

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Wed 28

Return Thu 13
from$ 235*Viewed: 1 hour ago

Thu 29

Return Fri 14
from$ 235*Viewed: 1 hour ago

Fri 30

Return Sat 15
from$ 235*Viewed: 1 hour ago

December

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Thu 27

Return Fri 11
from$ 231*Viewed: 1 hour ago

Sun 30

Return Mon 14
from$ 231*Viewed: 1 hour ago

Mon 31

Return Tue 15
from$ 231*Viewed: 1 hour ago

January

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Mon 21

Return Tue 5
from$ 231*Viewed: 1 hour ago

Tue 22

Return Wed 6
from$ 231*Viewed: 1 hour ago

Fri 25

Return Sat 9
from$ 231*Viewed: 1 hour ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Plan ahead for flights from San Francisco to Ontario

from
to
Type
Dates
Price*
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Wed 5 Dec 2018
Return Thu 20 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Thu 6 Dec 2018
Return Fri 21 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Sat 8 Dec 2018
Return Sun 23 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Sun 9 Dec 2018
Return Mon 24 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Mon 10 Dec 2018
Return Tue 25 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Tue 11 Dec 2018
Return Wed 26 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Wed 12 Dec 2018
Return Thu 27 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Thu 13 Dec 2018
Return Fri 28 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Fri 14 Dec 2018
Return Sat 29 Dec 2018
from$ 231*Viewed: 1 hour ago
San Francisco (SFO)
to Ontario (ONT)
Roundtrip
Depart Sat 15 Dec 2018
Return Sun 30 Dec 2018
from$ 231*Viewed: 1 hour ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Ontario

78 °FWednesday11/14/2018
62 °FThursday11/15/2018
64 °FFriday11/16/2018
66 °FSaturday11/17/2018
62 °FSunday11/18/2018
60 °FMonday11/19/2018
58 °FTuesday11/20/2018
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