To save up to 20% on this flight, we recommend booking at least 17 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Dubuque to California from $75 1-2 weeks out and tickets from $95 for flights departing within the next 72 hours.
The best pricing can be found in the month of April. Prices to California from Dubuque average $86. You can even find prices in April for less than $86, as users have found deals to California from as low as $43. The month of December appears to be one of the more expensive times to travel to California from Dubuque. Flying in the targeted month can save you up to 23%.