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Cheap flights from Hong Kong to San Diego from HK$3,209

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 21-10. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAN
17 Sep — 24 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 18 August 2026.

Thu 3-912:20 -
2 stops20h 45m
Wed 16-919:53 -
1 stop18h 12m
Deal found 17-8HK$6,574
Thu 3-911:45 -
2 stops20h 41m
Wed 16-906:15 -
2 stops21h 40m
Deal found 17-8HK$6,614
Wed 30-900:45 -
2 stops29h 42m
Thu 8-1018:57 -
2 stops36h 48m
Deal found 17-8HK$7,429
Mon 21-1221:10 -
2 stops33h 31m
Sun 10-113:30 -
2 stops27h 30m
Deal found 13-8HK$7,735
Mon 28-911:05 -
2 stops26h 54m
Mon 5-1019:55 -
2 stops21h 55m
Deal found 14-8HK$8,049
Mon 28-912:40 -
1 stop22h 28m
Mon 5-1011:19 -
1 stop26h 41m
Deal found 14-8HK$8,630
Wed 30-901:10 -
1 stop22h 38m
Thu 8-1007:50 -
1 stop31h 25m
Deal found 17-8HK$9,085

Find 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 18 August 2026.

Round-trip from

HK$6,574

One-way from

HK$3,209
Delta
  • Delta
  • 3-9-16-9
  • 3 total stops
  • 38h 57m total
  • Hong Kong to San Diego
Search Deals
21-10
  • 21-10
  • 2 total stops
  • 19h 36m total
  • Hong Kong to San Diego
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 18 August 2026.
Use the filters below to find and compare flights from Hong Kong to San Diego that are best for you.

Fly from

Fly to

Route

Departure

Return

Price

Cheapest return flight

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Thu 3-9

11:45-17:26

2 stops20h 41m

San Diego

Wed 16-9

06:15-18:55

2 stops21h 40m

HK$6,614

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Mon 21-12

21:10-14:41

2 stops33h 31m

San Diego

Sun 10-1

18:20-09:00

2 stops22h 40m

HK$7,735

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Mon 28-9

11:05-22:59

2 stops26h 54m

San Diego

Mon 5-10

19:55-08:50

2 stops21h 55m

HK$8,049

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Mon 28-9

12:40-20:08

1 stop22h 28m

San Diego

Mon 5-10

11:19-05:00

1 stop26h 41m

HK$8,630

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Sat 16-1

11:15-23:26

2 stops28h 11m

San Diego

Sun 24-1

18:36-10:45

2 stops24h 09m

HK$9,108

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Sun 17-1

10:45-22:55

1 stop28h 10m

San Diego

Fri 22-1

19:30-07:40

1 stop20h 10m

HK$9,375

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Mon 21-12

10:45-00:19

2 stops29h 34m

San Diego

Sun 10-1

14:00-05:10

1 stop23h 10m

HK$9,665
Fastest return journey

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Fri 15-1

22:30-22:42

1 stop16h 12m

San Diego

Tue 19-1

19:41-06:45

1 stop19h 04m

HK$10,175
Cheapest one-way

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Wed 21-10

13:30-18:06

2 stops19h 36m

HK$3,209

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Sat 31-10

19:45-20:37

2 stops39h 52m

HK$4,182

Flights are sorted by cheapest return flights first.

Deals found on 13-8

Showing 1-10 of 19 resultsSorted by cheapest first
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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.

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 20h 41m. United Airlines provides one of the quickest options available for as low as HK$6,614. Airlines will cover a distance of 11829 km.

  • 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.

See more FAQs

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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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