$159 Cheap United flights Ontario Intl. Airport (ONT) to San Francisco (SFO)

View $159 flight on Wed, Jul 1, 2026Opens in a new window

$159 Cheap United flights Ontario Intl. Airport (ONT) to San Francisco (SFO)

Prices were available within the past 7 days and start at $159 for one-way flights and $247 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jul 1 - Wed, Jul 8
ONT
Ontario
SFO
San Francisco
$247 Roundtrip, found 20 hours ago
$247
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Jul 1 from Ontario to San Francisco, returning Wed, Jul 8, priced at $247 found 20 hours ago

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Francisco Intl. SFO. Cheapest and Closest option available. Average driving time to city center is 19 minutes. Flights from $102
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city center19 min
Flights from $102

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
582 km
Average flight time
1 hour 28 mins

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