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HK$3,626+ 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 1-9. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
9 Jul — 16 Jul1
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 4 July 2025.

Return from

HK$6,531

One-way from

HK$3,626

Popular in

June

Cheapest in

September

Average price

HK$9,145
星宇航空
  • 星宇航空
  • 8-9-29-10
  • 4 total stops
  • 58h 38m total
  • Hong Kong to San Diego
1-9
  • 1-9
  • 2 total stops
  • 37h 17m total
  • Hong Kong to San Diego
Highest demand for flights based on searches. 12% potential increase in price (HK$13,022 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (HK$3,407 potential savings vs. average return price).
Average for return flights in July 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 4 July 2025.

Mon 8-911:20HKG - SAN
2 stops25h 37m星宇航空
Wed 29-1018:29SAN - HKG
2 stops33h 01m星宇航空
Deal found 3-7HK$6,531
Sat 27-911:05HKG - SAN
2 stops36h 47mEVA Air
Sat 4-1007:15SAN - HKG
2 stops21h 40mEVA Air
Deal found 3-7HK$6,554
Sun 26-1019:25HKG - SAN
1 stop31h 38mAir Canada
Mon 1-1218:10SAN - HKG
1 stop32h 30mAir Canada
Deal found 4-7HK$7,857
Sat 16-815:10HKG - SAN
2 stops30h 50mMultiple Airlines
Sat 23-817:00SAN - HKG
1 stop32h 05mMultiple Airlines
Deal found 1-7HK$8,697
Thu 16-1000:45HKG - SAN
2 stops38h 00mDelta
Wed 19-1106:15SAN - HKG
2 stops24h 55mDelta
Deal found 2-7HK$10,228
Thu 16-1001:25HKG - SAN
2 stops35h 04mQatar Airways
Wed 19-1109:10SAN - HKG
2 stops44h 20mQatar Airways
Deal found 4-7HK$10,299

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 July 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

Mon 8-9

11:20-21:57

2 stops25h 37m

San Diego

Wed 29-10

18:29-18:30

2 stops33h 01m

HK$6,531

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 27-9

11:05-08:52

2 stops36h 47m

San Diego

Sat 4-10

07:15-19:55

2 stops21h 40m

HK$6,554

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 26-10

19:25-12:03

1 stop31h 38m

San Diego

Mon 1-12

18:10-18:40

1 stop32h 30m

HK$7,857

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 16-8

15:10-07:00

2 stops30h 50m

San Diego

Sat 23-8

17:00-16:05

1 stop32h 05m

HK$8,697

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 16-10

00:45-23:45

2 stops38h 00m

San Diego

Wed 19-11

06:15-23:10

2 stops24h 55m

HK$10,228

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 16-10

01:25-21:29

2 stops35h 04m

San Diego

Wed 19-11

09:10-21:30

2 stops44h 20m

HK$10,299

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 1-9

10:35-08:52

2 stops37h 17m

HK$3,626

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 1-9

18:00-21:53

1 stop18h 53m

HK$6,021

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 15-8

00:45-22:51

2 stops37h 06m

HK$6,083

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 16-8

17:55-18:24

2 stops39h 29m

HK$6,099

Flights are sorted by cheapest return flights first.

Deals found on 3-7

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 25 hours 37 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 4 July 2025.
Get a feel of what it's like to fly with 星宇航空, EVA Air, andKorean Air to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
星宇航空
9.0
Wonderful

Overall

9.0

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.0
Wonderful
星宇航空
9.0
Wonderful

Overall

9.0

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.0
Wonderful

Overall

9.0

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.0
Wonderful

Overall

9.0

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.0
Wonderful

Overall

9.0

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
8.0
Very Good
星宇航空
9.0
Wonderful

Overall

9.0

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

  • 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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