Cheap Flights to San Mateo County | Popular Routes to San Mateo County from HK$617

View HK$617 flight on Wed, 22 Apr 2026Opens in a new window

Popular airlines to San Mateo County

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Cheap round-trip flights to San Mateo County

Prices were available within the past 7 days and start at HK$617 for one-way flights and HK$997 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 13 May - Mon, 17 Aug
SAN
San Diego
SFO
San Francisco
HK$997 Return, found 1 day ago
HK$997
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 13 May from San Diego to San Francisco, returning Mon, 17 Aug, priced at HK$997 found 1 day ago
Delta
Thu, 14 May - Fri, 15 May
SAN
San Diego
SFO
San Francisco
HK$1,239 Return, found 1 day ago
HK$1,239
Return
found 1 day ago
Select Delta flight, departing Thu, 14 May from San Diego to San Francisco, returning Fri, 15 May, priced at HK$1,239 found 1 day ago
United
Sat, 16 May - Thu, 20 Aug
SAN
San Diego
SFO
San Francisco
HK$1,470 Return, found 1 day ago
HK$1,470
Return
found 1 day ago
Select United flight, departing Sat, 16 May from San Diego to San Francisco, returning Thu, 20 Aug, priced at HK$1,470 found 1 day ago
American Airlines
Sun, 15 Nov - Sun, 22 Nov
SAN
San Diego
SJC
San Jose
HK$1,706 Return, found 3 days ago
HK$1,706
Return
found 3 days ago
Select American Airlines flight, departing Sun, 15 Nov from San Diego to San Jose, returning Sun, 22 Nov, priced at HK$1,706 found 3 days ago
Alaska Airlines
Wed, 4 Mar - Tue, 10 Mar
IAD
Washington
SFO
San Francisco
HK$1,862 Return, found 6 days ago
HK$1,862
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 4 Mar from Washington to San Francisco, returning Tue, 10 Mar, priced at HK$1,862 found 6 days ago
American Airlines
Tue, 3 Mar - Wed, 4 Mar
CLD
Carlsbad
SJC
San Jose
HK$2,421 Return, found 3 days ago
HK$2,421
Return
found 3 days ago
Select American Airlines flight, departing Tue, 3 Mar from Carlsbad to San Jose, returning Wed, 4 Mar, priced at HK$2,421 found 3 days ago
American Airlines
Thu, 14 May - Thu, 20 Aug
CLD
Carlsbad
SFO
San Francisco
HK$2,733 Return, found 1 day ago
HK$2,733
Return
found 1 day ago
Select American Airlines flight, departing Thu, 14 May from Carlsbad to San Francisco, returning Thu, 20 Aug, priced at HK$2,733 found 1 day ago
Delta
Wed, 18 Feb - Sat, 21 Feb
SAN
San Diego
OAK
Oakland
HK$3,335 Return, found 23 hours ago
HK$3,335
Return
found 23 hours ago
Select Delta flight, departing Wed, 18 Feb from San Diego to Oakland, returning Sat, 21 Feb, priced at HK$3,335 found 23 hours ago
Philippine Airlines
Mon, 16 Feb - Sat, 28 Feb
TPE
Taipei
SFO
San Francisco
HK$4,730 Return, found 1 day ago
HK$4,730
Return
found 1 day ago
Select Philippine Airlines flight, departing Mon, 16 Feb from Taipei to San Francisco, returning Sat, 28 Feb, priced at HK$4,730 found 1 day ago
Cathay Pacific
Fri, 18 Sept - Sun, 27 Sept
TPE
Taipei
SFO
San Francisco
HK$4,795 Return, found 5 days ago
HK$4,795
Return
found 5 days ago
Select Cathay Pacific flight, departing Fri, 18 Sept from Taipei to San Francisco, returning Sun, 27 Sept, priced at HK$4,795 found 5 days 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$997 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$997 and HK$4,795. If you were flying one way out of San Diego (SAN), you could have picked up a bargain from just HK$617.
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$997 and HK$4,795. 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
Sat, 2 May - Sat, 9 May
HKG
Hong Kong SAR
SFO
San Francisco
HK$4,562 Return, found 5 hours ago
HK$4,562
Return
found 5 hours ago
Select Air Canada flight, departing Sat, 2 May from Hong Kong SAR to San Francisco, returning Sat, 9 May, priced at HK$4,562 found 5 hours ago
*Available to Expedia members.