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Cheap flights from Hong Kong to San Diego from $409

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to San Diego departing on 10/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Hong Kong to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:20 pm - 6:05 pmHKG  Hong Kong Intl-SAN San Diego
20h 45m2 stops Incheon Intl Seattle/Tacoma Intl
Delta Logo
7:53 pm - 5:05 amSAN  San Diego-HKG Hong Kong Intl
18h 12m1 stop Los Angeles Los Angeles
$838Delta
Thu, Sep 3 - Wed, Sep 16
Delta Logo
9:25 am - 3:10 pmHKG  Hong Kong Intl-SAN San Diego
20h 45m1 stop Los Angeles Los Angeles
Delta Logo
7:53 pm - 5:05 amSAN  San Diego-HKG Hong Kong Intl
18h 12m1 stop Los Angeles Los Angeles
$840Delta
Thu, Sep 3 - Wed, Sep 16
United Airlines Logo
11:45 am - 5:26 pmHKG  Hong Kong Intl-SAN San Diego
20h 41m2 stops San Francisco Los Angeles Los Angeles
United Airlines Logo
6:15 am - 6:55 pmSAN  San Diego-HKG Hong Kong Intl
21h 40m2 stops Los Angeles Los Angeles San Francisco
$843United Airlines
Thu, Sep 3 - Wed, Sep 16
Delta Logo
12:45 am - 3:27 pmHKG  Hong Kong Intl-SAN San Diego
29h 42m2 stops Incheon Intl Seattle/Tacoma Intl
Delta Logo
6:57 pm - 10:45 pmSAN  San Diego-HKG Hong Kong Intl
36h 48m2 stops Seattle/Tacoma Intl Incheon Intl
$947Delta
Wed, Sep 30 - Thu, Oct 8
Multiple Airlines Logo
9:10 pm - 2:41 pmHKG  Hong Kong Intl-SAN San Diego
33h 31m2 stops Taipei City Taiwan Taoyuan Intl San Francisco
Multiple Airlines Logo
1:30 pm - 9:00 amSAN  San Diego-HKG Hong Kong Intl
27h 30m2 stops San Francisco Taipei City Taiwan Taoyuan Intl
$986Multiple Airlines
Mon, Dec 21 - Sun, Jan 10
Multiple Airlines Logo
9:10 pm - 11:41 amHKG  Hong Kong Intl-SAN San Diego
30h 31m2 stops Taipei City Taiwan Taoyuan Intl San Francisco
Multiple Airlines Logo
6:20 pm - 10:10 amSAN  San Diego-HKG Hong Kong Intl
23h 50m2 stops San Francisco Taipei City Taiwan Taoyuan Intl
$995Multiple Airlines
Sun, Jan 17 - Fri, Jan 22
Delta Logo
12:55 am - 5:59 pmHKG  Hong Kong Intl-SAN San Diego
33h 04m2 stops Incheon Intl Seattle/Tacoma Intl
Delta Logo
3:59 pm - 7:40 amSAN  San Diego-HKG Hong Kong Intl
23h 41m1 stop Los Angeles Los Angeles
$1,014Delta
Sun, Jan 17 - Sat, Jan 23
Delta Logo
10:45 am - 10:30 amHKG  Hong Kong Intl-SAN San Diego
15h 45m1 stop Los Angeles Los Angeles
Delta Logo
3:59 pm - 7:40 amSAN  San Diego-HKG Hong Kong Intl
23h 41m1 stop Los Angeles Los Angeles
$1,016Delta
Tue, Jan 19 - Wed, Jan 20
Delta Logo
10:45 am - 10:55 pmHKG  Hong Kong Intl-SAN San Diego
28h 10m1 stop Los Angeles Los Angeles
Delta Logo
6:15 am - 11:10 pmSAN  San Diego-HKG Hong Kong Intl
24h 55m2 stops Salt Lake City Incheon Intl
$1,023Delta
Tue, Jan 19 - Mon, Jan 25
Delta Logo
10:45 am - 10:30 amHKG  Hong Kong Intl-SAN San Diego
15h 45m1 stop Los Angeles Los Angeles
Delta Logo
3:59 pm - 7:40 amSAN  San Diego-HKG Hong Kong Intl
23h 41m1 stop Los Angeles Los Angeles
$1,025Delta
Tue, Jan 19 - Fri, Jan 22

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Delta flights from Hong Kong to San Diego

Our best Delta deals on Hong Kong to San Diego flight tickets
Delta
Sep 3
HKG12:20 pmHong Kong Intl
20h 45m
2 stops
SAN6:05 pmSan Diego
Sep 16
SAN7:53 pmSan Diego
18h 12m
1 stop
HKG5:05 amHong Kong Intl
$838
Delta
Sep 3
HKG9:25 amHong Kong Intl
20h 45m
1 stop
SAN3:10 pmSan Diego
Sep 16
SAN7:53 pmSan Diego
18h 12m
1 stop
HKG5:05 amHong Kong Intl
$840
Delta
Sep 30
HKG12:45 amHong Kong Intl
29h 42m
2 stops
SAN3:27 pmSan Diego
Oct 8
SAN6:57 pmSan Diego
36h 48m
2 stops
HKG10:45 pmHong Kong Intl
$947

United Airlines flights from Hong Kong to San Diego

Our best United Airlines deals on Hong Kong to San Diego flight tickets
United Airlines
Sep 3
HKG11:45 amHong Kong Intl
20h 41m
2 stops
SAN5:26 pmSan Diego
Sep 16
SAN6:15 amSan Diego
21h 40m
2 stops
HKG6:55 pmHong Kong Intl
$843
United Airlines
Sep 28
HKG12:40 pmHong Kong Intl
22h 28m
1 stop
SAN8:08 pmSan Diego
Oct 5
SAN11:19 amSan Diego
26h 41m
1 stop
HKG5:00 amHong Kong Intl
$1,100
United Airlines
Jan 19
HKG10:35 amHong Kong Intl
19h 09m
1 stop
SAN1:44 pmSan Diego
Jan 19
SAN5:00 pmSan Diego
22h 00m
1 stop
HKG7:00 amHong Kong Intl
$1,259

momondo Fare Finder

 
Customize your flight search to find flights from Hong Kong to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Hong Kong to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Thu 9/3

12:20 pm-6:05 pm

2 stops20h 45m

San Diego

Wed 9/16

7:53 pm-5:05 am

1 stop18h 12m

$838

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Thu 9/3

9:25 am-3:10 pm

1 stop20h 45m

San Diego

Wed 9/16

7:53 pm-5:05 am

1 stop18h 12m

$840

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Thu 9/3

11:45 am-5:26 pm

2 stops20h 41m

San Diego

Wed 9/16

6:15 am-6:55 pm

2 stops21h 40m

$843

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Wed 9/30

12:45 am-3:27 pm

2 stops29h 42m

San Diego

Thu 10/8

6:57 pm-10:45 pm

2 stops36h 48m

$947

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Mon 12/21

9:10 pm-2:41 pm

2 stops33h 31m

San Diego

Sun 1/10

1:30 pm-9:00 am

2 stops27h 30m

$986

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Sun 1/17

9:10 pm-11:41 am

2 stops30h 31m

San Diego

Fri 1/22

6:20 pm-10:10 am

2 stops23h 50m

$995

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Sun 1/17

12:55 am-5:59 pm

2 stops33h 04m

San Diego

Sat 1/23

3:59 pm-7:40 am

1 stop23h 41m

$1,014

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Tue 1/19

10:45 am-10:30 am

1 stop15h 45m

San Diego

Wed 1/20

3:59 pm-7:40 am

1 stop23h 41m

$1,016

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Tue 1/19

10:45 am-10:55 pm

1 stop28h 10m

San Diego

Mon 1/25

6:15 am-11:10 pm

2 stops24h 55m

$1,023

Hong KongSan Diego

HKG Hong Kong Intl - SAN San Diego

HKGSAN

Hong Kong Intl

Tue 1/19

10:45 am-10:30 am

1 stop15h 45m

San Diego

Fri 1/22

3:59 pm-7:40 am

1 stop23h 41m

$1,025

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Hong Kong to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Hong Kong to San Diego flights?

You could potentially save up to 15% on your flight if you consider stops on a Hong Kong to San Diego flight.

How have Hong Kong to San Diego flight prices changed over time?

When to book flights from Hong Kong to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Hong Kong to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hong Kong to San Diego (HKG to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hong Kong to San Diego

Best Price Found

$409

Fastest flight time

25h 01m

Direct flights

None
The best one-way flight to San Diego from Hong Kong in the past 72 hours is $409. The best round-trip flight deal from Hong Kong to San Diego found on momondo in the last 72 hours is $838.
The fastest flight from Hong Kong to San Diego takes 25h 01m
There are no direct flights from Hong Kong to San Diego. There are no popular flight routes from Hong Kong to San Diego.
Search flight deals

Frequently asked questions about flying from Hong Kong to San Diego

  • How far is Hong Kong Intl to San Diego by plane?

    San Diego is 7340.9 mi away from Hong Kong Intl. Flights usually cover this in 25h 01m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Hong Kong Intl Airport to San Diego Airport?

    Prices for flights from Hong Kong Intl Airport to San Diego Airport were last updated today.

  • How old do you have to be to fly from Hong Kong Intl Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Hong Kong Intl Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
Coronado
El Cajon
National City
Julian
La Mesa
Poway
San Ysidro
Imperial Beach
Santee
Borrego Springs
Lemon Grove
Alpine

Why use momondo?

Why should I use momondo to find a flight deal from Hong Kong to San Diego?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Hong Kong to San Diego for you.

Can I find flights from Hong Kong to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Hong Kong to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from Hong Kong to San Diego?

Once all potential Hong Kong to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Hong Kong to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Hong Kong and alert you when they change.

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