Cheap Flights to San Mateo County from ₩145,200

View ₩145,200 flight on Tue, Jan 27, 2026Opens in a new window

Popular airlines to San Mateo County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • Southwest Airlines

    Southwest Airlines

  • JetBlue Airways

    JetBlue Airways

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

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

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to San Mateo County?

Prices were available within the past 7 days and start at ₩145,200 for one-way flights and ₩349,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Mon, Jan 12 - Tue, Jan 20
BOS
Boston
SFO
San Francisco
₩349,500 Roundtrip, found 1 day ago
₩349,500
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Jan 12 from Boston to San Francisco, returning Tue, Jan 20, priced at ₩349,500 found 1 day ago
United
Mon, Jan 12 - Tue, Jan 20
BOS
Boston
SFO
San Francisco
₩409,100 Roundtrip, found 1 day ago
₩409,100
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jan 12 from Boston to San Francisco, returning Tue, Jan 20, priced at ₩409,100 found 1 day ago
United
Mon, Jan 12 - Tue, Jan 20
BOS
Boston
SFO
San Francisco
₩482,900 Roundtrip, found 1 day ago
₩482,900
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jan 12 from Boston to San Francisco, returning Tue, Jan 20, priced at ₩482,900 found 1 day ago
Delta
Mon, Jan 12 - Tue, Jan 20
BOS
Boston
SFO
San Francisco
₩494,600 Roundtrip, found 1 day ago
₩494,600
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jan 12 from Boston to San Francisco, returning Tue, Jan 20, priced at ₩494,600 found 1 day ago
American Airlines
Mon, Jan 12 - Tue, Jan 20
BOS
Boston
SFO
San Francisco
₩511,700 Roundtrip, found 1 day ago
₩511,700
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jan 12 from Boston to San Francisco, returning Tue, Jan 20, priced at ₩511,700 found 1 day ago
Hawaiian Airlines
Fri, Feb 20 - Mon, Feb 23
BOS
Boston
SFO
San Francisco
₩518,900 Roundtrip, found 3 days ago
₩518,900
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Feb 20 from Boston to San Francisco, returning Mon, Feb 23, priced at ₩518,900 found 3 days ago
Air Canada
Thu, Feb 5 - Sun, Feb 8
ICN
Seoul
SFO
San Francisco
₩687,500 Roundtrip, just found
₩687,500
Roundtrip
just found
Select Air Canada flight, departing Thu, Feb 5 from Seoul to San Francisco, returning Sun, Feb 8, priced at ₩687,500 just found
Asiana Airlines
Thu, Aug 27 - Mon, Aug 31
GMP
Seoul
SFO
San Francisco
₩706,600 Roundtrip, found 1 day ago
₩706,600
Roundtrip
found 1 day ago
Select Asiana Airlines flight, departing Thu, Aug 27 from Seoul to San Francisco, returning Mon, Aug 31, priced at ₩706,600 found 1 day ago
Air Premia
Wed, Mar 11 - Wed, Mar 25
ICN
Seoul
SFO
San Francisco
₩735,100 Roundtrip, just found
₩735,100
Roundtrip
just found
Select Air Premia flight, departing Wed, Mar 11 from Seoul to San Francisco, returning Wed, Mar 25, priced at ₩735,100 just found
United
Sat, Jan 24 - Mon, Jan 26
ICN
Seoul
SJC
San Jose
₩787,700 Roundtrip, found 4 days ago
₩787,700
Roundtrip
found 4 days ago
Select United flight, departing Sat, Jan 24 from Seoul to San Jose, returning Mon, Jan 26, priced at ₩787,700 found 4 days ago

About San Mateo County

Expedia offers flights to San Mateo County to meet every traveler'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, ₩349,500 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 ₩349,500 and ₩787,700. If you were flying one way out of Boston (BOS), you could have picked up a bargain from just ₩145,200.
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 ₩349,500 and ₩787,700. 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 55ºF and 75ºF 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, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Feb 5 - Sun, Feb 8
ICN
Seoul
SFO
San Francisco
₩687,500 Roundtrip, just found
₩687,500
Roundtrip
just found
Select Air Canada flight, departing Thu, Feb 5 from Seoul to San Francisco, returning Sun, Feb 8, priced at ₩687,500 just found
*Available to Expedia members.