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Cheap flights from Hong Kong to San Diego from HK$3,536

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5-12. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAN
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Hong Kong to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Hong Kong to San Diego
Explore the most affordable flight options available from Hong Kong to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 November 2025.

Thu 13-1110:35HKG - SAN
2 stops22h 54mUnited Airlines
Wed 26-1106:15SAN - HKG
2 stops21h 05mUnited Airlines
Deal found 12-11HK$7,040
Fri 26-1211:25HKG - SAN
2 stops23h 18mUnited Airlines
Fri 2-116:00SAN - HKG
2 stops23h 00mUnited Airlines
Deal found 10-11HK$7,631
Sat 27-1211:25HKG - SAN
2 stops19h 33mUnited Airlines
Sat 3-116:00SAN - HKG
2 stops23h 00mUnited Airlines
Deal found 12-11HK$8,439
Thu 25-1201:00HKG - SAN
2 stops23h 45mMultiple Airlines
Fri 2-106:15SAN - HKG
1 stop20h 45mMultiple Airlines
Deal found 10-11HK$10,156
Fri 26-1201:00HKG - SAN
1 stop23h 51mMultiple Airlines
Sat 3-106:15SAN - HKG
1 stop20h 45mMultiple Airlines
Deal found 12-11HK$10,568
Thu 25-1200:55HKG - SAN
2 stops33h 10mDelta
Fri 2-106:30SAN - HKG
2 stops36h 50mDelta
Deal found 10-11HK$10,584
Wed 12-1100:25HKG - SAN
2 stops33h 40mQatar Airways
Wed 26-1122:01SAN - HKG
2 stops31h 39mQatar Airways
Deal found 12-11HK$11,812
Wed 12-1101:00HKG - SAN
1 stop24h 55mMultiple Airlines
Wed 26-1116:53SAN - HKG
1 stop34h 07mMultiple Airlines
Deal found 12-11HK$17,127
Fri 26-1200:35HKG - SAN
2 stops34h 08mEmirates
Sat 3-110:25SAN - HKG
3 stops39h 15mEmirates
Deal found 12-11HK$25,442

Cheap flight deals from Hong Kong to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 November 2025.

Round-trip from

HK$6,955

One-way from

HK$3,536

Popular in

August

Cheapest in

July

Average price

HK$13,311
27-3-11-4
  • 27-3-11-4
  • 4 total stops
  • 42h 29m total
  • Hong Kong to San Diego
Search Deals
5-12
  • 5-12
  • 3 total stops
  • 45h 04m total
  • Hong Kong to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (HK$2,118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$3,174 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 13 November 2025.
Use the filters below to find and compare flights from Hong Kong to San Diego that are best for you.

Fly from

Hong Kong

Fly to

San Diego

Route

Departure

Return

Price

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 27-3

19:40-00:04

2 stops19h 24m

San Diego

Sat 11-4

18:45-08:50

2 stops23h 05m

HK$6,955

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 20-2

11:15-23:03

2 stops27h 48m

San Diego

Tue 24-2

16:45-10:10

2 stops25h 25m

HK$7,087

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 20-2

11:25-17:29

1 stop22h 04m

San Diego

Tue 24-2

12:55-06:45

2 stops25h 50m

HK$7,328

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 26-12

22:30-11:15

1 stop28h 45m

San Diego

Fri 2-1

19:55-06:45

1 stop18h 50m

HK$7,631

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 27-12

22:45-10:30

1 stop27h 45m

San Diego

Sat 3-1

07:40-19:20

1 stop19h 40m

HK$7,631

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 27-3

22:45-23:40

1 stop15h 55m

San Diego

Sat 11-4

06:15-18:55

1 stop21h 40m

HK$7,631

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 7-12

18:55-23:56

3 stops45h 01m

HK$3,551

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 4-12

18:55-23:59

3 stops45h 04m

HK$3,567

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 9-2

21:50-10:55

2 stops29h 05m

HK$3,582

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 30-1

17:35-08:35

2 stops31h 00m

HK$3,590

Flights are sorted by cheapest return flights first.

Deals found on 13-11

Showing 1-10 of 15 results
1
2

Best time to book a flight from Hong Kong to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Hong Kong with our price prediction graph.
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.

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to San Diego

What is the cheapest month to book a flight from Hong Kong to San Diego?

Currently, July is the cheapest month in which you can book a flight from Hong Kong to San Diego (average of HK$3,567). Flying from Hong Kong to San Diego in August is currently the most expensive (average of HK$8,237). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HKG to SAN?

Find hourly flight availability from Hong Kong to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 November 2025.

When flying from Hong Kong to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 38% versus a flight at midday.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated 13 November 2025.
Get a feel of what it's like to fly with United Airlines from Hong Kong to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,015 reviews
Check prices

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,015 reviews
United Airlines
7.4
Good
9,015 reviews
Check prices

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Hong Kong to San Diego?

    A quick flight from Hong Kong to San Diego can take about 22h 04m. 星宇航空 provides one of the quickest options available for as low as HK$7,328. Airlines will cover a distance of 11829 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Hong Kong to San Diego round-trip?

    Currently priced at HK$6,238, United Airlines will fly you from Hong Kong to San Diego and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Hong Kong to San Diego that include hotel bookings?

    Yes. In addition to deals on Hong Kong to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to San Diego.

  • Can I find deals for business class flights from Hong Kong to San Diego?

    Yes. Cheapflights offers flight deals from Hong Kong to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hong Kong to San Diego?

    Currently, July is the cheapest month in which you can book a flight from Hong Kong to San Diego (average of HK$3,567). Flying from Hong Kong to San Diego in August is currently the most expensive (average of HK$8,237). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Fly from Hong Kong to San Diego on these airlines

Choose from the following airlines for your flight from Hong Kong to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 13 November 2025.
United Airlines flights from Hong Kong Intl to San Diego

Top airline flying from Hong Kong to San Diego

Discover the top airline that operate flights from Hong Kong to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestHK$6,238AverageHK$10,263FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Hong Kong to San Diego?

Cheapflights makes it easy to find Hong Kong to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to San Diego?

Millions of users choose and trust Cheapflights to book the best flight deals from Hong Kong to San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Hong Kong to San Diego with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Hong Kong to San Diego flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Hong Kong to San Diego become cheaper?

Yes! Start tracking prices for Hong Kong to San Diego flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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