Find flights
Airlines
Travel Guide

HK$4,937+ 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 19-7. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
7 Jul — 14 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 2 July 2025.

Return from

HK$6,523

One-way from

HK$4,937

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
19-7
  • 19-7
  • 3 total stops
  • 58h 43m total
  • Hong Kong to San Diego
Highest demand for flights based on searches. 12% potential increase in price (HK$13,021 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (HK$3,409 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 2 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 30-6HK$6,523
Sun 26-1011:15HKG - SAN
2 stops36h 23mEVA Air
Mon 1-1216:00SAN - HKG
2 stops27h 50mEVA Air
Deal found 30-6HK$6,931
Sun 26-1019:25HKG - SAN
1 stop31h 38mAir Canada
Mon 1-1218:10SAN - HKG
1 stop32h 30mAir Canada
Deal found 30-6HK$7,284
Fri 17-1018:00HKG - SAN
2 stops20h 41mMultiple Airlines
Wed 19-1118:10SAN - HKG
1 stop32h 30mMultiple Airlines
Deal found 30-6HK$7,363
Tue 1-700:30HKG - SAN
2 stops38h 14mAsiana Airlines
Fri 5-914:21SAN - HKG
2 stops30h 19mAsiana Airlines
Deal found 1-7HK$7,983
Sun 7-900:45HKG - SAN
2 stops37h 06mDelta
Wed 29-1006:15SAN - HKG
2 stops38h 05mDelta
Deal found 30-6HK$9,427

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 2 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$6,523

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 26-10

11:15-08:38

2 stops36h 23m

San Diego

Mon 1-12

16:00-11:50

2 stops27h 50m

HK$6,931

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$7,284

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 17-10

18:00-23:41

2 stops20h 41m

San Diego

Wed 19-11

18:10-18:40

1 stop32h 30m

HK$7,363

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sun 7-9

00:45-22:51

2 stops37h 06m

San Diego

Wed 29-10

06:15-11:20

2 stops38h 05m

HK$9,427

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 19-7

20:35-16:18

3 stops58h 43m

HK$4,937

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Thu 14-8

18:00-21:53

1 stop18h 53m

HK$5,110

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 13-8

00:45-23:42

2 stops37h 57m

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

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Sat 16-8

11:15-00:15

1 stop28h 00m

HK$6,994

Flights are sorted by cheapest return flights first.

Deals found on 1-7

Showing 1-10 of 12 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 2 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
9.1
Wonderful

Crew

9.3

Overall

9.1

Comfort

9.0

Entertainment

9.0

Food

8.9

Boarding

9.0

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
9.1
Wonderful
星宇航空
9.1
Wonderful

Crew

9.3

Overall

9.1

Comfort

9.0

Entertainment

9.0

Food

8.9

Boarding

9.0

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
9.1
Wonderful

Crew

9.3

Overall

9.1

Comfort

9.0

Entertainment

9.0

Food

8.9

Boarding

9.0

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
9.1
Wonderful

Crew

9.3

Overall

9.1

Comfort

9.0

Entertainment

9.0

Food

8.9

Boarding

9.0

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
9.1
Wonderful

Crew

9.3

Overall

9.1

Comfort

9.0

Entertainment

9.0

Food

8.9

Boarding

9.0

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
9.1
Wonderful

Crew

9.3

Overall

9.1

Comfort

9.0

Entertainment

9.0

Food

8.9

Boarding

9.0

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to San Diego by cabin class

Find flights to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to San Diego?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Diego today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets to San Diego?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego.

Can Cheapflights find flights to San Diego with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to San Diego flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to San Diego become cheaper?

Yes! Start tracking prices for San Diego flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
OSZAR »