WHO CAN DENY THERE IS AN ‘ECONOMIC WAR’ BEING WAGED AGAINST VENEZUELA?

I just checked flight prices with Cheap Tickets for my sister who is thinking of traveling to Venezuela from San Francisco. The cheapest price came to $2149. Just for the heck of it, I tried San Francisco-Bogota-San Francisco on the same page and got prices at $990 and $1051. What rationale is there for charging more than double for the same distance? Less tourists = less dollars entering the Venezuelan economy = greater economic and political instability.