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HK$3,869+ 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 4-6. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
18 Apr — 25 Apr1
1 adult

Flights to San Diego in 2025

Find the latest flights to San Diego in 2025, 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 13 April 2025.

Return from

HK$6,831

One-way from

HK$3,869

Popular in

June

Cheapest in

September

Average price

HK$10,700
星宇航空
  • 星宇航空
  • 28-5-4-6
  • 4 total stops
  • 49h 27m total
  • Hong Kong to San Diego
4-6
  • 4-6
  • 3 total stops
  • 55h 37m total
  • Hong Kong to San Diego
Highest demand for flights based on searches. 12% potential increase in price (HK$12,771 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (HK$2,728 potential savings vs. average return price).
Average for return flights in April 2025

Find flight deals to San Diego

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 13 April 2025.

Wed 28-511:20HKG - SAN
2 stops25h 25m星宇航空
Wed 4-618:53SAN - HKG
2 stops24h 02m星宇航空
Deal found 12-4HK$6,831
Fri 17-1018:00HKG - SAN
1 stop32h 52mAir Canada
Wed 19-1120:10SAN - HKG
1 stop30h 30mAir Canada
Deal found 13-4HK$7,722
Sun 26-1012:00HKG - SAN
2 stops22h 25mMultiple Airlines
Mon 1-1220:10SAN - HKG
1 stop30h 30mMultiple Airlines
Deal found 12-4HK$7,738
Thu 16-1000:30HKG - SAN
2 stops38h 06mAsiana Airlines
Wed 19-1106:30SAN - HKG
2 stops24h 00mAsiana Airlines
Deal found 13-4HK$9,606
Sun 22-618:55HKG - SAN
1 stop15h 52mUnited Airlines
Sat 12-710:53SAN - HKG
2 stops27h 07mUnited Airlines
Deal found 12-4HK$10,196
Mon 28-400:45HKG - SAN
2 stops32h 17mDelta
Wed 9-718:55SAN - HKG
2 stops36h 35mDelta
Deal found 13-4HK$10,591
Mon 14-700:45HKG - SAN
2 stops29h 36mKorean Air
Tue 29-719:30SAN - HKG
2 stops24h 10mKorean Air
Deal found 12-4HK$12,041
Sun 13-723:15HKG - SAN
2 stops38h 29mSWISS
Tue 29-716:00SAN - HKG
2 stops33h 40mSWISS
Deal found 13-4HK$12,467
Fri 11-701:20HKG - SAN
1 stop25h 15mJapan Airlines
Tue 29-707:39SAN - HKG
2 stops38h 51mJapan Airlines
Deal found 12-4HK$12,902
Fri 11-701:25HKG - SAN
2 stops34h 35mQatar Airways
Tue 29-714:27SAN - HKG
2 stops40h 18mQatar Airways
Deal found 13-4HK$13,948
Wed 28-522:05HKG - SAN
4 stops55h 54mEthiopian Air
Wed 4-621:30SAN - HKG
3 stops50h 25mEthiopian Air
Deal found 12-4HK$14,623
Fri 11-701:20HKG - SAN
1 stop25h 15mAmerican Airlines
Tue 29-710:34SAN - HKG
2 stops44h 26mAmerican Airlines
Deal found 12-4HK$17,608

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 13 April 2025.
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 28-5

11:20-21:45

2 stops25h 25m

San Diego

Wed 4-6

18:53-09:55

2 stops24h 02m

HK$6,831

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 27-5

00:05-19:53

2 stops34h 48m

San Diego

Wed 4-6

20:48-18:55

2 stops31h 07m

HK$8,064

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 22-6

18:00-12:02

1 stop33h 02m

San Diego

Sat 12-7

17:00-16:05

1 stop32h 05m

HK$9,948

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 22-6

18:55-19:47

1 stop15h 52m

San Diego

Sat 12-7

10:53-05:00

2 stops27h 07m

HK$10,196

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 28-4

00:45-18:02

2 stops32h 17m

San Diego

Wed 9-7

18:55-22:30

2 stops36h 35m

HK$10,591

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 28-8

00:30-13:40

2 stops28h 10m

San Diego

Sun 5-10

06:15-22:50

2 stops25h 35m

HK$11,708

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 14-7

00:45-15:21

2 stops29h 36m

San Diego

Tue 29-7

19:30-10:40

2 stops24h 10m

HK$12,041

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 13-7

23:15-22:44

2 stops38h 29m

San Diego

Tue 29-7

16:00-16:40

2 stops33h 40m

HK$12,467

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 11-7

01:20-11:35

1 stop25h 15m

San Diego

Tue 29-7

07:39-13:30

2 stops38h 51m

HK$12,902

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 11-7

01:25-21:00

2 stops34h 35m

San Diego

Tue 29-7

14:27-21:45

2 stops40h 18m

HK$13,948

Flights are sorted by cheapest return flights first.

Deals found on 12-4

Showing 1-10 of 16 results
1
2

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

How long is the flight to San Diego?

On average, a flight from Hong Kong to San Diego takes 21 hours 53 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.

What are the cheapest airlines that fly to San Diego?

The cheapest airlines flying from Hong Kong to San Diego are Air Canada and United Airlines.

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).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated 13 April 2025.
To help decide which airline to fly to San Diego, see what other customers have to say about 星宇航空, Korean Air and Japan Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
星宇航空
9.1
Wonderful

Comfort

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

Food

8.9

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
星宇航空
9.1
Wonderful
星宇航空
9.1
Wonderful

Comfort

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

Food

8.9

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
星宇航空
9.1
Wonderful

Comfort

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

Food

8.9

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
星宇航空
9.1
Wonderful

Comfort

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

Food

8.9

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
星宇航空
9.1
Wonderful

Comfort

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

Food

8.9

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
星宇航空
9.1
Wonderful

Comfort

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

Food

8.9

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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 best airline to fly to San Diego?

    Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to San Diego.

  • 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$42, while return flights cost around HK$1,940.

  • How much is a return flight to San Diego?

    A return flight to San Diego will typically cost around HK$253, however they can be found for as little as HK$250.

  • 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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