Direct (nonstop) flights from Hong Kong to San Francisco
2 airlines fly nonstop from Hong Kong International Airport (HKG) to San Francisco International (SFO). It's 6,925 miles (11,144 km), about 12h 25m in the air. Operated by Cathay Pacific, United Airlines.
Cathay Pacific
United Airlines
Route data last updated: May 21, 2026
Airlines with non-stop flights
CX
Cathay Pacific
UA
United Airlines
Alternative Routes
Other ways to fly from Hong Kong to San Francisco with one stop · direct emits 1059 kg CO₂ per passenger
Looking for the return flight?
SFO → HKG: Flights from San Francisco to Hong KongOther direct flights from Hong Kong
Direct flights from San Francisco (SFO)
Frequently Asked Questions
How long is the direct flight from Hong Kong to San Francisco?
A nonstop flight from Hong Kong (HKG) to San Francisco (SFO) takes approximately 12 hours and 25 minutes. The distance is 6,925 miles (11,144 km).
Which airlines fly nonstop from Hong Kong to San Francisco?
2 airlines: Cathay Pacific, United Airlines.
Is there a nonstop flight from Hong Kong to San Francisco?
Yes. 2 airlines: Cathay Pacific, United Airlines.
How far is Hong Kong from San Francisco?
The flight distance from Hong Kong to San Francisco is 6,925 miles (11,144 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Tokyo.
What is the time difference between Hong Kong and San Francisco?
San Francisco is 15 hours behind Hong Kong. (Asia/Hong_Kong vs America/Los_Angeles.)
Will I experience jet lag flying from Hong Kong to San Francisco?
Probably — 15-hour time difference means significant jet lag. Expect about 1 day of adjustment per hour of shift. Flying westward is generally easier to adjust to.
What type of aircraft flies from Hong Kong to San Francisco?
At 12h 25m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from Hong Kong SAR to USA?
Depends on your passport. Check with the USA embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Hong Kong to San Francisco?
Roughly 1059 kg CO2 per passenger one-way. That's about the same as driving 5,295 km.
Is the return flight from San Francisco to Hong Kong also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Hong Kong to San Francisco?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Hong Kong International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.