HK$3,501+ Cheap flights to San Diego

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 30-1. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
20 Feb — 27 Feb1
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
Explore the most affordable flight options available to San Diego. Find the lowest fares based on data from user searches, with prices last updated on 21 January 2026.

Wed 3-620:10
HKG
-
SAN
2 stops26h 29m
Multiple Airlines
Tue 9-619:59
SAN
-
HKG
2 stops22h 16m
Multiple Airlines
Deal found 20-1HK$6,051
Wed 3-619:40
HKG
-
SAN
2 stops28h 52m
Multiple Airlines
Fri 19-606:30
SAN
-
HKG
2 stops22h 25m
Multiple Airlines
Deal found 19-1HK$6,480
Sat 7-319:40
HKG
-
SAN
2 stops27h 38m
Multiple Airlines
Sat 14-308:00
SAN
-
HKG
2 stops21h 05m
Multiple Airlines
Deal found 20-1HK$6,496
Mon 2-221:50
HKG
-
SAN
2 stops29h 05m
Multiple Airlines
Thu 5-214:20
SAN
-
HKG
2 stops26h 40m
Multiple Airlines
Deal found 19-1HK$6,543
Tue 3-220:25
HKG
-
SAN
1 stop36h 59m
Air Canada
Fri 6-218:05
SAN
-
HKG
1 stop32h 35m
Air Canada
Deal found 19-1HK$6,574
Thu 5-319:40
HKG
-
SAN
2 stops19h 23m
EVA Air
Thu 12-322:09
SAN
-
HKG
2 stops30h 56m
EVA Air
Deal found 18-1HK$6,652
Thu 11-613:30
HKG
-
SAN
2 stops25h 23m
Multiple Airlines
Thu 18-606:30
SAN
-
HKG
2 stops22h 25m
Multiple Airlines
Deal found 20-1HK$7,322
Tue 31-310:15
HKG
-
SAN
2 stops43h 39m
China Airlines
Sat 4-415:45
SAN
-
HKG
2 stops26h 30m
China Airlines
Deal found 19-1HK$7,385
Thu 5-310:35
HKG
-
SAN
2 stops20h 25m
United Airlines
Thu 12-306:15
SAN
-
HKG
1 stop22h 00m
United Airlines
Deal found 18-1HK$7,439
Tue 31-312:40
HKG
-
SAN
1 stop19h 32m
United Airlines
Sat 4-406:20
SAN
-
HKG
2 stops21h 35m
United Airlines
Deal found 19-1HK$7,736

Find flight deals to San Diego

Find the latest flights to San Diego in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 21 January 2026.

Return from

HK$6,051

One-way from

HK$3,501

Popular in

August

Cheapest in

July

Average price

HK$9,498
3-6-9-6
  • 3-6-9-6
  • 4 total stops
  • 48h 45m total
  • Hong Kong to San Diego
30-1
  • 30-1
  • 2 total stops
  • 28h 30m total
  • Hong Kong to San Diego
Highest demand for flights based on searches. 2% potential increase in price (HK$238 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (HK$406 potential savings vs. average return price).
Average for return flights in January 2026

Cheapflights Fare Finder

 
Locate flights to San Diego that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 21 January 2026.
Use the filters below to find and compare flights to San Diego that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 3-6

20:10-07:39

2 stops26h 29m

San Diego

Tue 9-6

19:59-09:15

2 stops22h 16m

HK$6,051

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 3-6

19:40-09:32

2 stops28h 52m

San Diego

Fri 19-6

06:30-19:55

2 stops22h 25m

HK$6,480

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 2-2

21:50-10:55

2 stops29h 05m

San Diego

Thu 5-2

14:20-09:00

2 stops26h 40m

HK$6,543

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 3-2

20:25-17:24

1 stop36h 59m

San Diego

Fri 6-2

18:05-18:40

1 stop32h 35m

HK$6,574

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 5-3

19:40-23:03

2 stops19h 23m

San Diego

Thu 12-3

22:09-20:05

2 stops30h 56m

HK$6,652

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 31-3

14:05-18:22

2 stops43h 17m

San Diego

Sat 4-4

15:45-13:05

2 stops30h 20m

HK$7,385

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 2-2

22:30-00:15

1 stop17h 45m

San Diego

Thu 5-2

07:45-06:45

1 stop31h 00m

HK$7,439

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 5-3

10:35-12:44

1 stop18h 09m

San Diego

Thu 12-3

11:57-05:45

1 stop26h 48m

HK$7,439

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 31-3

12:40-18:38

2 stops20h 58m

San Diego

Sat 4-4

17:00-05:00

2 stops21h 00m

HK$7,736

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 30-1

20:05-08:35

2 stops28h 30m

HK$3,501

Flights are sorted by cheapest return flights first.

Deals found on 18-1

Showing 1-10 of 20 results
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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
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 to San Diego

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals 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

Plan your trip to San Diego by taking into account the average temperature totals 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 26 hours 29 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$1,802, while return flights cost around HK$1,203.

  • How much is a return flight to San Diego?

    A return flight to San Diego will typically cost around HK$1,377, however they can be found for as little as HK$1,203.

  • 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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