Asiana Airlines via DealBase discounts select Asiana Airlines Roundtrip Flights to Asia, with prices starting from $575.05. (On the DealBase landing page, click on "Asiana Airlines" in the top line to see this sale.) This price is valid on flights departing on August 21 from San Francisco, CA, (SFO) with arrival in Manila, Philippines, (MNL) and return on August 28.