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Get United's best fares today on flights from Ontario to San Francisco from *

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Low fare calendar for flights from Ontario (ONT) to San Francisco (SFO)

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
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13
from
$97*
Viewed:21 hours ago
Economy
Return:12/27/19
14
from
$97*
Viewed:2 hours ago
Economy
Return:12/21/19
15
from
$152*
Viewed:2 hours ago
Economy
Return:12/29/19
16
from
$97*
Viewed:2 hours ago
Economy
Return:12/23/19
17
from
$97*
Viewed:2 hours ago
Economy
Return:12/24/19
18
from
$97*
Viewed:2 hours ago
Economy
Return:12/25/19
19
from
$97*
Viewed:2 hours ago
Economy
Return:12/26/19
20
from
$97*
Viewed:2 hours ago
Economy
Return:12/27/19
21
from
$97*
Viewed:2 hours ago
Economy
Return:12/28/19
22
from
$152*
Viewed:2 hours ago
Economy
Return:01/05/20
23
from
$97*
Viewed:2 hours ago
Economy
Return:12/30/19
24
from
$97*
Viewed:2 hours ago
Economy
Return:12/31/19
25
from
$187*
Viewed:2 hours ago
Economy
Return:01/01/20
26
from
$97*
Viewed:2 hours ago
Economy
Return:01/02/20
27
from
$97*
Viewed:2 hours ago
Economy
Return:01/03/20
28
from
$187*
Viewed:2 hours ago
Economy
Return:01/04/20
29
from
$97*
Viewed:2 hours ago
Economy
Return:01/05/20
30
from
$187*
Viewed:2 hours ago
Economy
Return:01/06/20
31
from
$152*
Viewed:2 hours ago
Economy
Return:01/14/20
from
$97*
Viewed:2 hours ago
Economy
Return:01/08/20
from
$97*
Viewed:2 hours ago
Economy
Return:01/09/20
from
$97*
Viewed:2 hours ago
Economy
Return:01/10/20
from
$152*
Viewed:2 hours ago
Economy
Return:01/18/20
Lowest PriceToday
*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.

Looking for additional flights from Ontario to San Francisco?

FromToDatesFare TypePrice

Ontario (ONT)

San Francisco (SFO)

Depart: 02/13/20

Return: 02/20/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/12/20

Return: 02/19/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/15/20

Return: 02/22/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/20/20

Return: 02/27/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/19/20

Return: 02/26/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/21/20

Return: 02/28/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/22/20

Return: 02/29/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/25/20

Return: 03/03/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 02/27/20

Return: 03/05/20

Roundtrip
from
USD97*
Viewed:2hoursago

Ontario (ONT)

San Francisco (SFO)

Depart: 03/04/20

Return: 03/11/20

Roundtrip
from
USD97*
Viewed:2hoursago

*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 San Francisco

Friday light rain
56°F 12/13/19
Saturday sky is clear
55°F 12/14/19
Sunday sky is clear
52°F 12/15/19
Monday scattered clouds
50°F 12/16/19
Tuesday overcast clouds
50°F 12/17/19
Wednesday moderate rain
46°F 12/18/19
Thursday light rain
48°F 12/19/19
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