CheapAir.com has added 280 weekly Cuba flights to its product offerings. The Calabasas online travel agency can now book passage to Cuba on eight major airlines, as well as a charter service from Miami. Direct commercial flights originate from 11 cities, including Los Angeles. “Last year, when the rule changes for travel to Cuba opened up a historic opportunity, we jumped on it,” Jeff Klee, chief executive of CheapAir.com, said in a statement. “We haven’t had enough inventory to accommodate the demand, so we’re thrilled to have all these new flights.” The travel agency can arrange flights to 10 Cuban cities, including Havana, Santiago de Cuba and Camaguey.