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Cheap Flights to San Diego County | Popular Routes to San Diego County from HK$620

View HK$620 flight on Sat, 31 Oct 2026Opens in a new window

Popular airlines to San Diego County

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  • American Airlines

  • United

  • Delta

  • Frontier Airlines

  • Southwest Airlines

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Cheap round-trip flights to San Diego County

Prices were available within the past 7 days and start at HK$620 for one-way flights and HK$1,072 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Sat, 17 Oct - Mon, 19 Oct
SFO
San Francisco
SAN
San Diego
HK$1,072 Return, found 3 days ago
HK$1,072
Return
found 3 days ago
Select Southwest Airlines flight, departing Sat, 17 Oct from San Francisco to San Diego, returning Mon, 19 Oct, priced at HK$1,072 found 3 days ago
Delta
Sat, 17 Oct - Sat, 24 Oct
SFO
San Francisco
SAN
San Diego
HK$1,239 Return, found 4 hours ago
HK$1,239
Return
found 4 hours ago
Select Delta flight, departing Sat, 17 Oct from San Francisco to San Diego, returning Sat, 24 Oct, priced at HK$1,239 found 4 hours ago
United
Sat, 24 Oct - Sat, 31 Oct
SFO
San Francisco
SAN
San Diego
HK$1,470 Return, found 5 days ago
HK$1,470
Return
found 5 days ago
Select United flight, departing Sat, 24 Oct from San Francisco to San Diego, returning Sat, 31 Oct, priced at HK$1,470 found 5 days ago
Alaska Airlines
Sun, 20 Sept - Fri, 2 Oct
SFO
San Francisco
SAN
San Diego
HK$1,556 Return, found 6 days ago
HK$1,556
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 20 Sept from San Francisco to San Diego, returning Fri, 2 Oct, priced at HK$1,556 found 6 days ago
American Airlines
Sat, 17 Oct - Sat, 24 Oct
SFO
San Francisco
SAN
San Diego
HK$1,798 Return, found 4 hours ago
HK$1,798
Return
found 4 hours ago
Select American Airlines flight, departing Sat, 17 Oct from San Francisco to San Diego, returning Sat, 24 Oct, priced at HK$1,798 found 4 hours ago
United
Thu, 15 Oct - Mon, 19 Oct
SFO
San Francisco
SNA
Orange County
HK$2,104 Return, found 7 hours ago
HK$2,104
Return
found 7 hours ago
Select United flight, departing Thu, 15 Oct from San Francisco to Orange County, returning Mon, 19 Oct, priced at HK$2,104 found 7 hours ago
United
Sat, 10 Oct - Tue, 13 Oct
SFO
San Francisco
PSP
Palm Springs
HK$2,107 Return, found 5 days ago
HK$2,107
Return
found 5 days ago
Select United flight, departing Sat, 10 Oct from San Francisco to Palm Springs, returning Tue, 13 Oct, priced at HK$2,107 found 5 days ago
United
Sat, 24 Oct - Sat, 31 Oct
SFO
San Francisco
CLD
Carlsbad
HK$2,738 Return, found 5 days ago
HK$2,738
Return
found 5 days ago
Select United flight, departing Sat, 24 Oct from San Francisco to Carlsbad, returning Sat, 31 Oct, priced at HK$2,738 found 5 days ago
United
Thu, 24 Sept - Thu, 24 Sept
HKG
Hong Kong SAR
SAN
San Diego
HK$6,541 Return, found 13 hours ago
HK$6,541
Return
found 13 hours ago
Select United flight, departing Thu, 24 Sept from Hong Kong SAR to San Diego, returning Thu, 24 Sept, priced at HK$6,541 found 13 hours ago
Korean Air
Tue, 17 Nov - Tue, 24 Nov
HKG
Hong Kong SAR
SAN
San Diego
HK$6,661 Return, found 8 hours ago
HK$6,661
Return
found 8 hours ago
Select Korean Air flight, departing Tue, 17 Nov from Hong Kong SAR to San Diego, returning Tue, 24 Nov, priced at HK$6,661 found 8 hours ago

Trending flights to San Diego County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 24 Sept - Thu, 24 Sept
HKG
Hong Kong SAR
SAN
San Diego
HK$6,541 Return, found 13 hours ago
HK$6,541
Return
found 13 hours ago
Select United flight, departing Thu, 24 Sept from Hong Kong SAR to San Diego, returning Thu, 24 Sept, priced at HK$6,541 found 13 hours ago

Frequently asked questions

Can I cancel my flight booking to San Diego County due to COVID-19?
If you haven't booked yet, look through the terms and conditions of your preferred carrier. If you've already purchased your flight to San Diego County, click through to our Customer Service Portal. It will help you determine which COVID-19 policies apply to your booking and provide advice on the next steps.
What's the best way to find cheap flights to San Diego County that have flexible change policies?
It's as easy as can be with Expedia. Step 1: Type in your travel details and click "Search." Step 2: Check the "No change fee" box directly below the "Flexible change policies" heading to the left of the screen. Step 3. Snag your flexible and cheap flight to San Diego County.
What are some of the general tips for travelers to San Diego County during the COVID-19 outbreak?
With new COVID-19 rules and measures in place, travel looks a little different at present. Here's what you need to know before you pack your bags for San Diego County:
  • Find out if any travel restrictions apply to your origin and destination before locking in your flight. Also check if there are any special conditions you'll need to follow on arrival, such as proof of a negative COVID-19 test.
  • Wear a face mask even during airport screening. A TSA employee will ask you to temporarily lower your mask to verify your identity.
  • To reduce the risk of cross-contamination, place your boarding pass on the scanner yourself and then hold it up for inspection. Do not hand your boarding pass directly to a TSA officer.
  • You're allowed to take one container of hand sanitizer up to 12 oz (350 ml) in your hand luggage. This will need to be removed for X-ray scanning.
  • Put any personal items (keys, wallet and phone) in your carry-on instead of a bin to reduce handling during screening.
  • If you're bringing food through the security checkpoint, place it in a clear plastic bag and then into a screening bin. This lessens the likelihood that a TSA agent will need to touch your food container or carry-on bag for inspection.
  • Find out if any travel restrictions apply to your origin and destination before locking in your flight. Also check if there are any special conditions you'll need to follow on arrival, such as proof of a negative COVID-19 test.
  • Wear a face mask even during airport screening. A TSA employee will ask you to temporarily lower your mask to verify your identity.
  • To reduce the risk of cross-contamination, place your boarding pass on the scanner yourself and then hold it up for inspection. Do not hand your boarding pass directly to a TSA officer.
  • You're allowed to take one container of hand sanitizer up to 12 oz (350 ml) in your hand luggage. This will need to be removed for X-ray scanning.
  • Put any personal items (keys, wallet and phone) in your carry-on instead of a bin to reduce handling during screening.
  • If you're bringing food through the security checkpoint, place it in a clear plastic bag and then into a screening bin. This lessens the likelihood that a TSA agent will need to touch your food container or carry-on bag for inspection.
Which airlines fly to San Diego County?
Let American Airlines take you there. This leading carrier runs 759 services each month to San Diego Intl. Airport (SAN), a San Diego County gateway.
How can I find cheap tickets to San Diego County?
Book in advance, travel on a cheaper day, avoid peak travel periods — there's no shortage of ways! Another one is to make use of Expedia's "flexible dates" function. Search for your San Diego County flight, then compare the cheapest prices for nearby dates. In the last seven days, the best price for a flight to San Diego County was HK$1,072.
How much is a flight to San Diego County?
If you were journeying one way from San Francisco (SFO), you could've scored a bargain seat for just HK$620 in the last seven days. Return flights to San Diego County ranged from only HK$1,072 to HK$6,661 over the same period.
What are the most popular airports to fly into in San Diego County?
San Diego Intl. Airport (SAN) is the main gateway for those hoping to explore San Diego County. Around 6709 flights every month touch down at this airport.
When is the cheapest time to fly to San Diego County?
When travelling domestically, fly out on a Saturday to boost your chance of scoring the cheapest airfare. Thursday is often the most expensive day to depart. According to our research, when flying internationally you could save up to 25% on your flight if you choose to leave on a Friday. Sunday is usually the dearest time to fly.
How much is a plane ticket to San Diego County?
In the last seven days, seats to San Diego County ranged between HK$1,072 and HK$6,661. Prices depend on a number of things, particularly the departure time, seating class, airline and when you make your booking.
Which airlines with flights to San Diego County employ COVID-19 cleanliness policies?
As passengers and cabin crew start traveling once again, nearly all airlines have implemented physical distancing and other precautionary measures to help combat COVID-19. Here are just a few examples:
  • Southwest Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Alaska Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • American Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Southwest Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Alaska Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • American Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
What are the best things to do in San Diego County?
  • Packed with culture, energy and excitement, Carlsbad is an excellent place to kick off your San Diego County adventure. Tour popular attractions like Legoland California, hit up the stores or wine and dine your way around some of this destination's inviting restaurants and bars. What you decide to do is up to you!
  • When selecting what sort of clothes to pack for your trip, take into account that Carlsbad has a mediterranean climate. For a better idea of what to expect, study the weather before you set off.
  • Roughly 14 kilometres to the north of Carlsbad, Oceanside also deserves to be high on your itinerary. Noteworthy sights at this location include Mission San Luis Rey Church — don't forget to drop by.
  • Packed with culture, energy and excitement, Carlsbad is an excellent place to kick off your San Diego County adventure. Tour popular attractions like Legoland California, hit up the stores or wine and dine your way around some of this destination's inviting restaurants and bars. What you decide to do is up to you!
  • When selecting what sort of clothes to pack for your trip, take into account that Carlsbad has a mediterranean climate. For a better idea of what to expect, study the weather before you set off.
  • Roughly 14 kilometres to the north of Carlsbad, Oceanside also deserves to be high on your itinerary. Noteworthy sights at this location include Mission San Luis Rey Church — don't forget to drop by.

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About San Diego County

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About San Diego County

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