Cheap Flights to San Mateo County | Popular Routes to San Mateo County from HK$423

View HK$423 flight on Wed, 13 May 2026Opens in a new window

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Cheap round-trip flights to San Mateo County

Prices were available within the past 7 days and start at HK$423 for one-way flights and HK$760 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 6 May - Wed, 13 May
LAX
Los Angeles
SFO
San Francisco
HK$760 Return, found 2 days ago
HK$760
Return
found 2 days ago
Select Delta flight, departing Wed, 6 May from Los Angeles to San Francisco, returning Wed, 13 May, priced at HK$760 found 2 days ago
Alaska Airlines
Wed, 6 May - Wed, 6 May
LAX
Los Angeles
SFO
San Francisco
HK$760 Return, found 5 days ago
HK$760
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 6 May from Los Angeles to San Francisco, returning Wed, 6 May, priced at HK$760 found 5 days ago
United
Wed, 20 May - Sat, 23 May
LAX
Los Angeles
SFO
San Francisco
HK$1,169 Return, found 1 hour ago
HK$1,169
Return
found 1 hour ago
Select United flight, departing Wed, 20 May from Los Angeles to San Francisco, returning Sat, 23 May, priced at HK$1,169 found 1 hour ago
American Airlines
Wed, 6 May - Wed, 13 May
LAX
Los Angeles
SFO
San Francisco
HK$1,233 Return, found 2 days ago
HK$1,233
Return
found 2 days ago
Select American Airlines flight, departing Wed, 6 May from Los Angeles to San Francisco, returning Wed, 13 May, priced at HK$1,233 found 2 days ago
Delta
Tue, 24 Mar - Sat, 4 Apr
LAX
Los Angeles
SJC
San Jose
HK$1,255 Return, found 4 days ago
HK$1,255
Return
found 4 days ago
Select Delta flight, departing Tue, 24 Mar from Los Angeles to San Jose, returning Sat, 4 Apr, priced at HK$1,255 found 4 days ago
United
Sun, 5 Apr - Sun, 5 Apr
LAS
Las Vegas
SFO
San Francisco
HK$2,029 Return, found 2 days ago
HK$2,029
Return
found 2 days ago
Select United flight, departing Sun, 5 Apr from Las Vegas to San Francisco, returning Sun, 5 Apr, priced at HK$2,029 found 2 days ago
American Airlines
Thu, 26 Feb - Sat, 28 Feb
LAS
Las Vegas
SJC
San Jose
HK$3,271 Return, found 20 hours ago
HK$3,271
Return
found 20 hours ago
Select American Airlines flight, departing Thu, 26 Feb from Las Vegas to San Jose, returning Sat, 28 Feb, priced at HK$3,271 found 20 hours ago
Air Canada
Tue, 8 Sept - Tue, 15 Sept
HKG
Hong Kong SAR
SFO
San Francisco
HK$4,552 Return, found 6 hours ago
HK$4,552
Return
found 6 hours ago
Select Air Canada flight, departing Tue, 8 Sept from Hong Kong SAR to San Francisco, returning Tue, 15 Sept, priced at HK$4,552 found 6 hours ago
China Airlines
Thu, 3 Sept - Sat, 12 Sept
HKG
Hong Kong SAR
SFO
San Francisco
HK$4,992 Return, found 1 hour ago
HK$4,992
Return
found 1 hour ago
Select China Airlines flight, departing Thu, 3 Sept from Hong Kong SAR to San Francisco, returning Sat, 12 Sept, priced at HK$4,992 found 1 hour ago
Asiana Airlines
Fri, 27 Feb - Sun, 8 Mar
HKG
Hong Kong SAR
SFO
San Francisco
HK$5,100 Return, found 1 day ago
HK$5,100
Return
found 1 day ago
Select Asiana Airlines flight, departing Fri, 27 Feb from Hong Kong SAR to San Francisco, returning Sun, 8 Mar, priced at HK$5,100 found 1 day ago

About San Mateo County

Expedia offers flights to San Mateo County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to San Mateo County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to San Mateo County that have flexible change policies?
By using our nifty "No change fee" filter, that's how. All you have to do is enter your travel details, click the "Search" button, then select the box below the "Flexible change policies" heading (to the left). Expedia makes it a snap to find cheap, flexible flights to San Mateo County.
Which airlines fly to San Mateo County?
You can take your pick of a range of airlines that touch down in or near San Mateo County. A few of your best options are:

  • United Airlines - 5,914 flights to or near San Mateo County each month, including 5,914 flights to San Francisco Intl. Airport (SFO) per month.
  • Alaska Airlines - 2,349 flights to or near San Mateo County each month, including 2,349 flights to San Francisco Intl. Airport (SFO) per month.
  • Delta Air Lines - 1,222 flights to or near San Mateo County each month, including 1,222 flights to San Francisco Intl. Airport (SFO) per month.

How can I find cheap tickets to San Mateo County?
In the last seven days, HK$760 was the lowest price for a flight to San Mateo County. For an even cheaper fare, book well ahead of time and be flexible with your travel dates. Search for your flight to San Mateo County, then check out prices for nearby days by clicking on the "flexible dates" link above.
How much is a flight to San Mateo County?
The price of a round-trip airfare to San Mateo County in the last seven days varied between HK$760 and HK$5,100. If you were flying one way out of Los Angeles (LAX), you could have picked up a bargain from just HK$423.
What are the most popular airports to fly into in San Mateo County?
San Mateo County's primary gateway is San Francisco Intl. Airport (SFO). Get your next thrilling journey underway by reserving a ticket on one of the 11,935 flights every month to this destination.
When is the cheapest time to fly to San Mateo County?
Jet off on a Tuesday to boost your odds of scoring the cheapest flight to San Mateo County. Mondays are usually the second most affordable day to depart. Saturday is typically the most expensive day to fly anywhere.
How much is a plane ticket to San Mateo County?
In the last seven days, airfares to San Mateo County varied between HK$760 and HK$5,100. Prices depend on a number of things, particularly the departure time, cabin class, airline and when the fare is booked.
What is the best time to go to San Mateo County?
Summer starts June 20 in the Northern Hemisphere, and these warmer months are an excellent time to visit the exciting San Mateo County city of San Francisco. Average temperatures vary between 13ºC and 24ºC throughout this season. The largest crowds are found here in March, April and May.
What months are the cheapest to book a flight to San Mateo County?
The best month to purchase well-priced fares to San Mateo County is February. Bear in mind that in the U.S, the most expensive time to book a ticket is the month of December.

Trending flights to San Mateo 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.

Air Canada
Tue, 8 Sept - Tue, 15 Sept
HKG
Hong Kong SAR
SFO
San Francisco
HK$4,552 Return, found 8 hours ago
HK$4,552
Return
found 8 hours ago
Select Air Canada flight, departing Tue, 8 Sept from Hong Kong SAR to San Francisco, returning Tue, 15 Sept, priced at HK$4,552 found 8 hours ago
*Available to Expedia members.