HK$3,245+ 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 8-5. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
4 May — 11 May1
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 4 April 2026.

Fri 15-521:05
HKG
-
SAN
2 stops36h 22m
EVA Air
Fri 22-520:35
SAN
-
HKG
2 stops21h 15m
EVA Air
Deal found 31-3HK$7,500
Tue 19-519:40
HKG
-
SAN
2 stops27h 18m
Multiple Airlines
Tue 26-507:43
SAN
-
HKG
2 stops21h 12m
Multiple Airlines
Deal found 4-4HK$7,829
Tue 19-519:40
HKG
-
SAN
2 stops27h 18m
EVA Air
Tue 26-507:43
SAN
-
HKG
2 stops21h 12m
EVA Air
Deal found 4-4HK$7,853
Sun 17-521:05
HKG
-
SAN
2 stops30h 09m
EVA Air
Sun 24-507:43
SAN
-
HKG
2 stops22h 02m
EVA Air
Deal found 2-4HK$7,923
Thu 10-909:45
HKG
-
SAN
2 stops38h 20m
Air Canada
Mon 14-916:07
SAN
-
HKG
2 stops46h 08m
Air Canada
Deal found 31-3HK$8,150
Thu 10-922:30
HKG
-
SAN
1 stop16h 59m
United Airlines
Mon 14-912:41
SAN
-
HKG
1 stop25h 19m
United Airlines
Deal found 30-3HK$8,237
Sun 17-519:40
HKG
-
SAN
2 stops27h 18m
Multiple Airlines
Sun 24-507:43
SAN
-
HKG
2 stops21h 12m
Multiple Airlines
Deal found 2-4HK$8,840
Wed 9-909:45
HKG
-
SAN
2 stops37h 58m
Air Canada
Sun 13-908:45
SAN
-
HKG
2 stops29h 30m
Air Canada
Deal found 2-4HK$8,981
Wed 9-912:40
HKG
-
SAN
2 stops23h 05m
United Airlines
Sun 13-919:41
SAN
-
HKG
1 stop18h 19m
United Airlines
Deal found 2-4HK$9,326

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 4 April 2026.

Return from

HK$7,500

One-way from

HK$3,245

Popular in

February

Cheapest in

June

Average price

HK$9,326
EVA Air
  • EVA Air
  • 15-5-22-5
  • 4 total stops
  • 57h 37m total
  • Hong Kong to San Diego
8-5
  • 8-5
  • 2 total stops
  • 39h 47m total
  • Hong Kong to San Diego
Highest demand for flights based on searches. 17% potential increase in price (HK$2,536 potential increase over avg. return price).
Cheapest flight prices on average. 13% potential price decrease (HK$1,416 potential savings vs. average return price).
Average for return flights in April 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 4 April 2026.
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

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 14-5

15:25-07:58

2 stops31h 33m

San Diego

Thu 21-5

17:42-08:50

2 stops24h 08m

HK$7,555

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 10-9

09:45-09:05

2 stops38h 20m

San Diego

Mon 14-9

16:07-05:15

2 stops46h 08m

HK$8,150

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 10-9

22:30-00:29

1 stop16h 59m

San Diego

Mon 14-9

12:41-05:00

1 stop25h 19m

HK$8,237

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 9-9

09:45-08:43

2 stops37h 58m

San Diego

Sun 13-9

08:45-05:15

2 stops29h 30m

HK$8,981

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 9-9

22:30-00:29

1 stop16h 59m

San Diego

Sun 13-9

19:41-18:55

1 stop32h 14m

HK$9,020
Fastest return journey

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 14-5

12:40-17:24

1 stop19h 44m

San Diego

Thu 21-5

06:20-18:55

2 stops21h 35m

HK$10,165

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 25-7

10:15-09:35

2 stops38h 20m

San Diego

Thu 30-7

16:14-13:00

2 stops29h 46m

HK$10,690
Cheapest one-way

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 10-5

20:20-23:42

3 stops42h 22m

HK$4,177

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 25-8

21:15-23:49

3 stops41h 34m

HK$4,271

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 8-5

20:20-16:47

3 stops35h 27m

HK$4,577

Flights are sorted by cheapest return flights first.

Deals found on 2-4

Showing 1-10 of 18 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
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 16 hours 59 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$1,811, 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$1,384, 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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