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Cheap flights from Hong Kong to San Diego from HK$3,276

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 27-1. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAN
20 Jan — 27 Jan1
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 21 December 2025.

Tue 23-1222:30HKG - SAN
1 stop17h 45mUnited Airlines
Sun 4-120:45SAN - HKG
2 stops30h 35mUnited Airlines
Deal found 19-12HK$7,034
Fri 26-1222:30HKG - SAN
1 stop17h 45mUnited Airlines
Sun 4-117:40SAN - HKG
2 stops33h 35mUnited Airlines
Deal found 19-12HK$7,330
Fri 26-1211:25HKG - SAN
1 stop28h 12mUnited Airlines
Sat 3-111:12SAN - HKG
1 stop27h 48mUnited Airlines
Deal found 19-12HK$7,633
Mon 22-1210:35HKG - SAN
1 stop16h 08mUnited Airlines
Wed 31-1219:55SAN - HKG
1 stop18h 50mUnited Airlines
Deal found 19-12HK$9,773
Fri 26-1220:25HKG - SAN
2 stops40h 22mAir Canada
Sat 3-106:30SAN - HKG
2 stops44h 10mAir Canada
Deal found 19-12HK$9,928
Sat 20-1222:30HKG - SAN
1 stop17h 45mUnited Airlines
Thu 1-119:55SAN - HKG
1 stop18h 50mUnited Airlines
Deal found 19-12HK$10,068
Tue 23-1220:25HKG - SAN
2 stops58h 33mAir Canada
Sat 3-106:30SAN - HKG
2 stops44h 10mAir Canada
Deal found 19-12HK$10,325
Sat 20-1222:30HKG - SAN
1 stop17h 45mUnited Airlines
Fri 2-119:55SAN - HKG
1 stop18h 50mUnited Airlines
Deal found 19-12HK$10,372
Mon 22-1220:25HKG - SAN
1 stop31h 38mAir Canada
Sat 3-106:30SAN - HKG
2 stops44h 10mAir Canada
Deal found 19-12HK$10,504
Sun 21-1220:25HKG - SAN
2 stops56h 34mAir Canada
Sat 3-106:30SAN - HKG
2 stops44h 10mAir Canada
Deal found 19-12HK$10,629
Thu 25-1219:40HKG - SAN
2 stops20h 11mMultiple Airlines
Sat 3-106:15SAN - HKG
1 stop20h 45mMultiple Airlines
Deal found 19-12HK$10,652
Fri 26-1220:25HKG - SAN
2 stops40h 22mAir Canada
Sun 4-118:55SAN - HKG
2 stops31h 45mAir Canada
Deal found 19-12HK$10,738

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 21 December 2025.

Round-trip from

HK$5,719

One-way from

HK$3,276

Popular in

August

Cheapest in

July

Average price

HK$10,885
22-1-4-2
  • 22-1-4-2
  • 4 total stops
  • 50h 15m total
  • Hong Kong to San Diego
Search Deals
27-1
  • 27-1
  • 3 total stops
  • 37h 31m total
  • Hong Kong to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (HK$1,868 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$3,151 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 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 21 December 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

Thu 22-1

20:05-08:35

2 stops28h 30m

San Diego

Wed 4-2

19:30-09:15

2 stops21h 45m

HK$5,719

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 28-4

20:10-08:39

2 stops27h 29m

San Diego

Fri 8-5

20:45-10:05

2 stops22h 20m

HK$5,719

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 21-3

11:25-00:04

2 stops27h 39m

San Diego

Sun 22-3

18:25-09:15

2 stops23h 50m

HK$5,851

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 30-4

09:45-00:28

2 stops29h 43m

San Diego

Tue 5-5

16:45-05:10

1 stop21h 25m

HK$6,481

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 30-4

09:45-17:24

1 stop22h 39m

San Diego

Mon 11-5

16:45-05:10

1 stop21h 25m

HK$6,583

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 29-4

09:45-17:24

1 stop22h 39m

San Diego

Mon 11-5

16:45-05:10

1 stop21h 25m

HK$6,583

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 5-2

20:25-17:24

1 stop36h 59m

San Diego

Mon 9-2

18:05-18:40

1 stop32h 35m

HK$6,583

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 29-4

09:45-12:00

1 stop17h 15m

San Diego

Sun 10-5

16:45-05:10

1 stop21h 25m

HK$6,583

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 27-4

09:45-14:57

2 stops20h 12m

San Diego

Tue 5-5

11:00-05:10

2 stops27h 10m

HK$6,691

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 24-3

00:55-19:16

2 stops33h 21m

San Diego

Sat 11-4

15:30-10:55

2 stops28h 25m

HK$6,738

Flights are sorted by cheapest return flights first.

Deals found on 20-12

Showing 1-10 of 17 results
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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.

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$3,571). Flying from Hong Kong to San Diego in August is currently the most expensive (average of HK$8,248). 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 21 December 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.

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 29h 43m. Air Canada provides one of the quickest options available for as low as HK$6,481. 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.

  • 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$3,571). Flying from Hong Kong to San Diego in August is currently the most expensive (average of HK$8,248). 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

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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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