To save up to 7% on this flight, we recommend booking at least 35 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Imperial to San Francisco from $99 1-2 weeks out and tickets from $105 for flights departing within the next 72 hours.
August can be a great time to fly to San Francisco from Imperial with a flight ticket averaging about $108. Cheapflights users have found deals in the month of August for as cheap as $48. The most expensive prices can be found in the month of June.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Imperial to San Francisco as you normally would.