Key carriers linking San Francisco International Airport (SFO) and Ninoy Aquino International Airport (MNL) in October include Philippine Airlines, United Airlines (via partner hubs), ANA, EVA Air, Korean Air, and Cathay Pacific. Philippine Airlines may offer the most direct Philippines-focused network and baggage policies suited to onward domestic travel; EVA Air and ANA provide high-quality one-stop connections via Taipei and Tokyo respectively, while Cathay Pacific and Korean Air offer competitive schedules via Hong Kong and Seoul. Compare seat comfort, included baggage, frequent flyer partnerships, and overall price when choosing an October itinerary. For business travelers, check premium-cabin availability on long-haul sectors; for budget travelers, examine layover durations and change fees.