Cathay offers two free checked bags in economy, enhancing value for international travelers.
Cathay's business class features a 1-2-1 layout with ample storage and privacy partitions.

Planning a trip from San Francisco to Hong Kong? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
When planning a trip from San Francisco to Hong Kong, there are several ways to potentially save money on your flight. According to the data, the cheapest month to fly is typically April, while the cheapest day of the week varies.
Advance Booking: Book your flight at least 45 days in advance to get the best deal.
Cheapest Airline: Consider flying with STARLUX Airlines, as they generally offer the cheapest fares.
Route Selection: The direct route from SFO to HKG is typically the most affordable.
Flight Type: Direct flights with United Airlines or Cathay Pacific are usually cheaper than flights with layovers.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
| Low season | August |
|---|---|
| High season | June |
| Cheapest flight | $427 |
Direct departures
San Francisco to Hong Kong Intl
Monday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Tuesday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Wednesday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Thursday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Friday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Saturday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Sunday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Direct returns
Hong Kong Intl to San Francisco
Monday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Tuesday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Wednesday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Thursday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Friday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Saturday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
Sunday
Cathay Pacific, United Airlines
Cathay Pacific, United Airlines
The crew very accommodating and food too is good. Keep up the good work
The crew very accommodating and food too is good. Keep up the good work
The crews are very efficient. Other airlines should learn from them when it comes to boarding and departing from the airplane. They also display efficiency in serving meals. They don't keep the aisles blocked for hours like some other airlines. The food is poor. Generally the food was unrecognizable and poorly prepared. The only thing that made it better than US flag carriers is that there was a fresh fruit bowl with each meal.
Very good service and food. Crew was professional and helpful. Cabin and restrooms were kept clean
Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean
EVA airlines was excellent: on time or early, safe, courteous crew. Highly recommended.
Flight Attendants could have been nicer and food portions could be bigger.
Great experience, comfort and food is delicious. Always great service and one time
Excellent service from check in to boarding the crew is so pleasant to asked
The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.
I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.
Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.
We are glad to have used China Airlines for our trip. Continue the good service! Thank you!
The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.
The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!
I love my Delta crew, they were so welcoming and helpful.
I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.
Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.
Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!
Better organization of boarding procedures. Terrible leadership guiding people to gates.
I did not like how the plane landed. It was not smooth.
First time tying out business class with this airline, hat a disappointment, never returning. We didn’t get the meal as requested from Singapore to HKG flight. While meals served connecting flight, crew takes meal order based off passenger membership status by giving the. Priority selection of meals. It was a battle, plain disappointment, not worth the hype, price, class as categorized/ advertised
Very friendly and accommodating staff. Food was great. Lots of movies and tv shows to choose from. Highly recommend.
Leg room wasn't that great. Other than that it was a good flight
Close to excellent. The only problem is when I try to charge my phone on the USB in front of my seat, the battery level is decreasing rather than increasing. Why?
If my return flight was not so much better, I would have given an excellent review.
They downgraded me from premium economy to regular economy and me had 2 major lay over and had to have an emergency landing due to engine failure mid flight Don’t use them worst experience I have ever had still dealing with the trauma
Seats in the absolute back row of the plane even though we booked ages ago :( Crew was awesome though
The only problem was my connecting flight to Chiang Mai on Hong Kong express that I booked through Cathay Pacific was canceled and I was never told about it. I was rescheduled on a flight 10 hours later. Very long day at rgr airport in Hing Kong after a 13 hour flight but that's OK, I understand things change but I think I should have been told. I would have prepared myself for a long wait. Great flights all around though. Thank you
Overall pretty good experience. It would be nice to have caught the attendants even they were flying down the aisle with snacks, and if they could cater to multiple dietary restrictions (bland and no lactose. The customer service chat is a bad experience), but otherwise no complaints.
There was a flight attendant named Angela who took care of me because I injured my foot badly right before the flight. Because of the service she provided I will always fly Cathay.
Older aircraft, no meal, only food was for purchase. Not impressed United.
Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?
My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.
Premium Plus is a really good idea for longer flights
Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly
We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.
We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.
From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.
The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.
Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!
Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦
All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.
They rescheduled me and I had no issues with the new flight
No paper towels in bathroom. Aisle seat difficult to get out of Other than those, excellent service
Both flights are delayed so I rate the whole experience as mediocre.
Bad experience boarding and flight got delayed didn’t make it to my next flight
The seat was reasonably comfortable. I hope the food could be hotter and more tasty.
Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers
They are a great airline, and i enjoying flying with them. However my experience with booking through Kayak was a horrible experience. With all the restrictions and glitches of website. My entire bookings by kayak was wrong. And there was no possible way of fixing anything with them, because they hand over responsibility to the airline after purchase is made. Will not be booking through Kayak again and will inform my family and friends not to as well.
Excellent crew, great food despite catering issues. We need more people like this.