Flight to San Mateo County

View S$172 flight on Sat, 4 Jul, 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to San Mateo County

  • Alaska Airlines

  • American Airlines

  • United

  • Delta

  • Frontier Airlines

  • JetBlue Airways

  • Southwest Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to San Mateo County

Prices were available within the past 7 days and start at S$172 for one-way flights and S$342 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 4 Jul - Tue, 7 Jul
BOS
Boston
SFO
San Francisco
S$342 Return, found 2 days ago
S$342
Return
found 2 days ago
Select Delta flight, departing Sat, 4 Jul from Boston to San Francisco, returning Tue, 7 Jul, priced at S$342 found 2 days ago
Delta
Tue, 14 Apr - Tue, 21 Apr
BOS
Boston
SJC
San Jose
S$347 Return, found 3 days ago
S$347
Return
found 3 days ago
Select Delta flight, departing Tue, 14 Apr from Boston to San Jose, returning Tue, 21 Apr, priced at S$347 found 3 days ago
Alaska Airlines
Mon, 4 May - Tue, 19 May
BOS
Boston
SFO
San Francisco
S$348 Return, found 2 days ago
S$348
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 4 May from Boston to San Francisco, returning Tue, 19 May, priced at S$348 found 2 days ago
JetBlue Airways
Sat, 4 Jul - Sat, 4 Jul
BOS
Boston
SFO
San Francisco
S$457 Return, found 2 days ago
S$457
Return
found 2 days ago
Select JetBlue Airways flight, departing Sat, 4 Jul from Boston to San Francisco, returning Sat, 4 Jul, priced at S$457 found 2 days ago
United
Fri, 29 May - Sat, 13 Jun
BOS
Boston
SFO
San Francisco
S$477 Return, found 2 days ago
S$477
Return
found 2 days ago
Select United flight, departing Fri, 29 May from Boston to San Francisco, returning Sat, 13 Jun, priced at S$477 found 2 days ago
American Airlines
Sat, 25 Apr - Sat, 2 May
BOS
Boston
SJC
San Jose
S$504 Return, found 2 days ago
S$504
Return
found 2 days ago
Select American Airlines flight, departing Sat, 25 Apr from Boston to San Jose, returning Sat, 2 May, priced at S$504 found 2 days ago
United
Fri, 18 Sept - Sun, 20 Sept
DTW
Detroit
SFO
San Francisco
S$524 Return, found 3 days ago
S$524
Return
found 3 days ago
Select United flight, departing Fri, 18 Sept from Detroit to San Francisco, returning Sun, 20 Sept, priced at S$524 found 3 days ago
Delta
Sat, 27 Jun - Sat, 4 Jul
DTW
Detroit
SJC
San Jose
S$843 Return, found 1 day ago
S$843
Return
found 1 day ago
Select Delta flight, departing Sat, 27 Jun from Detroit to San Jose, returning Sat, 4 Jul, priced at S$843 found 1 day ago
United
Fri, 5 Jun - Mon, 3 Aug
SIN
Singapore
SFO
San Francisco
S$875 Return, found 5 days ago
S$875
Return
found 5 days ago
Select United flight, departing Fri, 5 Jun from Singapore to San Francisco, returning Mon, 3 Aug, priced at S$875 found 5 days ago
Philippine Airlines
Fri, 11 Sept - Sat, 19 Sept
SIN
Singapore
SFO
San Francisco
S$887 Return, found 8 hours ago
S$887
Return
found 8 hours ago
Select Philippine Airlines flight, departing Fri, 11 Sept from Singapore to San Francisco, returning Sat, 19 Sept, priced at S$887 found 8 hours ago

The Annual Holiday Sale

Members save up to 40% on hotels. Plan this year’s big trip and save.
Book now

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.

United
Fri, 5 Jun - Mon, 3 Aug
SIN
Singapore
SFO
San Francisco
S$875 Return, found 5 days ago
S$875
Return
found 5 days ago
Select United flight, departing Fri, 5 Jun from Singapore to San Francisco, returning Mon, 3 Aug, priced at S$875 found 5 days ago

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, S$342 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 S$342 and S$887. If you were flying one way out of Boston (BOS), you could have picked up a bargain from just S$172.
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 S$342 and S$887. 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.

Book with confidence

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.

Travel information

San Mateo County Flights Information

Airlines serving
Delta, United, American Airlines, Alaska Airlines, JetBlue Airways, Singapore Airlines, Philippine Airlines, STARLUX Airlines
Roundtrip price
from S$342
San Mateo County Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.