HK$3,348+ Cheap flights to San Diego

— SAN
19 Sep — 26 Sep1
1 adult
1 adult, Economy, 0 bags

Flights to San Diego in 2026

Enter your travel dates to find the best prices.

Cheapest flights to San Diego

Thu 10-912:20 -
2 stops23h 49m
Thu 17-906:15 -
1 stop31h 50m
Deal found 18-8HK$6,571
Thu 10-911:45 -
1 stop16h 59m
Thu 17-912:41 -
1 stop25h 19m
Deal found 18-8HK$6,587
Thu 3-911:45 -
2 stops20h 41m
Wed 16-906:15 -
2 stops21h 40m
Deal found 17-8HK$6,610
Fri 11-911:45 -
1 stop16h 59m
Sun 20-915:56 -
1 stop35h 59m
Deal found 19-8HK$6,987
Wed 30-900:45 -
2 stops29h 42m
Thu 8-1018:57 -
2 stops36h 48m
Deal found 17-8HK$7,426
Mon 21-1221:10 -
2 stops33h 31m
Sun 10-118:20 -
2 stops22h 40m
Deal found 15-8HK$7,732
Wed 30-901:10 -
1 stop22h 38m
Thu 8-1007:50 -
1 stop31h 25m
Deal found 17-8HK$9,080
Fri 21-800:45 -
2 stops52h 29m
Fri 28-807:03 -
2 stops42h 17m
Deal found 19-8HK$9,206
Mon 21-1210:45 -
2 stops29h 34m
Sun 10-114:00 -
1 stop23h 10m
Deal found 14-8HK$9,661

Find flight deals to San Diego

Return from

HK$6,571

One-way from

HK$3,348
Delta
  • Delta
  • 10-9-17-9
  • 3 total stops
  • 55h 39m total
  • Hong Kong to San Diego
23-11
  • 23-11
  • 2 total stops
  • 19h 30m total
  • Hong Kong to San Diego

Cheapflights Fare Finder

 
Use the filters below to find and compare flights to San Diego that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight
Fastest return journey

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Thu 3-9

12:20-18:05

2 stops20h 45m

San Diego

Wed 16-9

19:53-05:05

1 stop18h 12m

HK$6,571

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Thu 10-9

11:45-13:44

1 stop16h 59m

San Diego

Thu 17-9

12:41-05:00

1 stop25h 19m

HK$6,587

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$6,610

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Fri 11-9

12:40-18:35

2 stops20h 55m

San Diego

Sun 20-9

15:56-05:40

2 stops22h 44m

HK$7,387

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$7,732

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$9,370

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$9,661

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Tue 19-1

10:35-13:44

1 stop43h 09m

San Diego

Wed 20-1

17:00-07:00

1 stop22h 00m

HK$9,872

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Sat 16-1

22:30-22:42

1 stop40h 12m

San Diego

Mon 25-1

17:00-07:00

1 stop22h 00m

HK$10,178
Cheapest one-way

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Mon 23-11

13:40-17:10

2 stops19h 30m

HK$3,348

Flights are sorted by cheapest return flights first.

Deals found on 18-8

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight to San Diego

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

Cheapflights Insights

Everything you need to know about your flight to San Diego

Rainfall in San Diego by month

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

How long is the flight to San Diego?

On average, a flight from Hong Kong to San Diego takes 23 hours 49 minutes. Flights to San Diego from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

FAQs about flying to San Diego

San Diego climate

The average daily temperature is 21 degrees Celsius. During the summer months and into October temperatures of 29C are not unusual. The city averages a mere 25cm (ten inches) of rain and even during the coldest months of December and January, temperatures still average a mild 20C.

Getting around San Diego

Like much of Southern California, the easiest way to get around San Diego is by car. You can find several rental car companies at the airport. Bus tickets are cheap and the trolley system is a great way to get around downtown or to nearby Tijuana. The Blue Line can take you through Old Town before crossing the border into Mexico. Tickets cost a few dollars and last for two hours. 

What is good to know if travelling to San Diego?

  • The Hotel del Coronado on Coronado Island is the largest wooden structure in the United States.
  • The zoo is home to a family of giant pandas, and when Hua Mei was born here, she was the first baby panda born in the Western Hemisphere since 1990 (she is now in China, mother of eight).
  • Deep discounts are available at the ARTS TIX booth downtown in Horton Plaza Park, where day-of-show tickets are available on a cash-only basis. Events include theatre, concert and dance throughout the city.
  • Each July, Mission Bay is home to a San Diego original, the Over-the-Line Tournament. This beach softball event dates from 1953 and is renowned for boisterous, anything-goes behaviour.
  • And for the holidays, kids of all ages gather in the lobby of Loews Coronado Bay Resort, where the Cat in the Hat gives regular readings of How the Grinch Stole Christmas. Theodor Geisel (Dr. Seuss) is one of San Diego’s most treasured native sons.
  • When is the best time to fly to San Diego?

    Peak season:  San Diego is a year-round destination and its high season takes in most of the year. Prices for San Diego flights and accommodation will be highest between May and August, November to January and all public holidays. If you are looking forward to the beach, beware the May Gray and June Gloom – fog by any other name.  Off season:  October, February and March are low-season months.  Shoulder season:  September and April are months of good weather and fewer crowds.

  • What airport do you fly into for flights to San Diego?

    San Diego (SAN), located 4.2 km from the city centre, is the airport you fly into when you book flights to San Diego.

  • Can I find cheaper flights to San Diego if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to San Diego on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the cheapest airport to fly to in San Diego?

    San Diego is currently the cheapest airport to fly to in San Diego. One-way flights to San Diego typically cost HK$401, while return flights cost around HK$1,209.

  • How much is a return flight to San Diego?

    A return flight to San Diego will typically cost around HK$1,385, however they can be found for as little as HK$1,209.

  • Does San Diego have rental cars?

    Yes. Those touching down at San Diego can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Diego?

    Yes. San Diego has hotels nearby for those requiring accommodations. Sheraton San Diego Resort is the closest property to San Diego (0.0 km away from San Diego).

See more FAQs

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