United Airlines flights from Hong Kong to San Francisco (HKG - SFO)
HKG — SFO
7 Nov — 14 Nov1
Find United Airlines flight deals from Hong Kong to San Francisco
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Cheapest United Airlines flights from Hong Kong to San FranciscoExplore the most affordable United Airlines flight options available from Hong Kong to San Francisco. Find the lowest fares with prices last updated on 8 October 2026.
Explore the most affordable United Airlines flight options available from Hong Kong to San Francisco. Find the lowest fares with prices last updated on 8 October 2026.
Thu 5-1110:35 -
Nonstop12h 30m
Tue 12-111:45 -
Nonstop15h 35m
Deal found 6-10HK$5,862
Mon 26-1011:25 -
1 stop16h 46m
Tue 27-1018:55 -
1 stop21h 05m
Deal found 6-10HK$5,902
Fri 6-1110:35 -
Nonstop12h 30m
Sun 15-1122:50 -
1 stop28h 25m
Deal found 7-10HK$6,011
Best United Airlines flights from Hong Kong to San FranciscoDiscover carefully curated United Airlines flight deals from Hong Kong to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.
Discover carefully curated United Airlines flight deals from Hong Kong to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.
Mon 26-1011:25 -
1 stop16h 46m
Tue 27-1018:55 -
1 stop21h 05m
Deal found 7-10HK$5,902
Fri 6-1110:35 -
Nonstop12h 30m
Sun 15-1122:50 -
1 stop28h 25m
Deal found 7-10HK$6,011
Sat 7-1122:30 -
Nonstop12h 25m
Thu 12-1123:15 -
Nonstop15h 30m
Deal found 3-10HK$6,255
Direct United Airlines flights from Hong Kong to San FranciscoExplore direct United Airlines flight options from Hong Kong to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 October 2026.
Explore direct United Airlines flight options from Hong Kong to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 October 2026.
Thu 5-1110:35 -
Nonstop12h 30m
Tue 12-111:45 -
Nonstop15h 35m
Deal found 6-10HK$5,862
Fri 20-1122:30 -
Nonstop12h 25m
Tue 5-123:15 -
Nonstop15h 30m
Deal found 5-10HK$6,255
Wed 18-1110:35 -
Nonstop12h 30m
Sat 2-123:15 -
Nonstop15h 30m
Deal found 5-10HK$6,263
Last-minute United Airlines flights from Hong Kong to San FranciscoDiscover last-minute United Airlines flight deals from Hong Kong to San Francisco. Data last updated 8 October 2026 and is based on user searches.
Discover last-minute United Airlines flight deals from Hong Kong to San Francisco. Data last updated 8 October 2026 and is based on user searches.
Thu 5-1110:35 -
Nonstop12h 30m
Tue 12-111:45 -
Nonstop15h 35m
Deal found 6-10HK$5,862
Mon 26-1011:25 -
1 stop16h 46m
Tue 27-1018:55 -
1 stop21h 05m
Deal found 6-10HK$5,902
Fri 6-1110:35 -
Nonstop12h 30m
Sun 15-1122:50 -
1 stop28h 25m
Deal found 7-10HK$6,011
One-way United Airlines flights to San FranciscoSearch for one-way United Airlines flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.
Search for one-way United Airlines flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.
Mon 26-1010:35 -
Nonstop12h 30m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-10HK$3,893
Wed 28-1010:35 -
Nonstop12h 30m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 7-10HK$3,900
Tue 1-1210:35 -
Nonstop12h 30m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 6-10HK$3,908
United Airlines flights from Hong Kong to San Francisco in 2026
Find detailed information about United Airlines flights from Hong Kong to San Francisco. Explore the options provided by United Airlines to plan your journey from Hong Kong to San Francisco. Data last updated 8 October 2026.
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When is the best time to book a flight to San Francisco with United Airlines?
The best time to book a flight to San Francisco with United Airlines is 86 days before departure. On average, fares are higher if you book 48 days before departure.
Which month is the cheapest to fly Economy class from Hong Kong to San Francisco?
For Economy class flights, the cheapest month to fly this route is December. The most expensive months are May and July.
Rainfall in San Francisco by month
Plan your trip to San Francisco by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.
Temperature in San Francisco by month
Plan your trip to San Francisco by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).
Best time to book a flight from Hong Kong to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Hong Kong with our price prediction graph.
HKG-SFO
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines serving San Francisco
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Fly from Hong Kong to San Francisco on another airline
Consider alternative airlines that service the San Francisco area. Flight routes are based on user searches made on Cheapflights and were last updated on 8 October 2026.
Other United Airlines flights from Hong Kong
Browse through other United Airlines flights departing from Hong Kong. Flight routes are based on user searches made on Cheapflights and were last updated on 8 October 2026.
Complete your trip
Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.
Other airlines serving Hong Kong and San Francisco
Choose from other airlines serving Hong Kong and San Francisco.
Other popular destinations in North America
If San Francisco is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 8 October 2026.
See what others are saying about United Airlines
Read reviews and see what other travellers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated 8 October 2026.
Overview
Reviews
United Airlines
10,000 reviews
Overview
Crew
8.1
Food
6.7
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Recent reviews
10.0
|Oct 2026Is good
10.0
|Sept 2026Everything was good
8.0
|Sept 2026The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
10.0
|Aug 2026Staff friendly, good boarding experience
4.0
|Aug 2026Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
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