Our data shows that February tends to be the cheapest month to fly to Saint Lucia from San Francisco. Users have commonly found prices around $946 for the month, but tickets can be as low as $611. Due to multiple factors, prepare for potentially higher prices in December.
When flying from San Francisco to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
||$222||$629||No cancel fee||N/A|
||$265||$617||No cancel fee||69%|
||$273||$685||No cancel fee||62%|
||$369||$842||No cancel fee||71%|