Cheap Flights to San Francisco County | Popular Routes to San Francisco County from HK$3,186

View HK$3,186 flight on Mon, 23 Mar 2026Opens in a new window

Popular airlines to San Francisco County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

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Cheap round-trip flights to San Francisco County

Prices were available within the past 7 days and start at HK$3,186 for one-way flights and HK$3,981 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 24 Jan - Thu, 29 Jan
LHR
London
SFO
San Francisco
HK$3,981 Return, found 2 days ago
HK$3,981
Return
found 2 days ago
Select United flight, departing Sat, 24 Jan from London to San Francisco, returning Thu, 29 Jan, priced at HK$3,981 found 2 days ago
Lufthansa
Sat, 24 Jan - Thu, 29 Jan
LHR
London
SFO
San Francisco
HK$4,137 Return, found 2 days ago
HK$4,137
Return
found 2 days ago
Select Lufthansa flight, departing Sat, 24 Jan from London to San Francisco, returning Thu, 29 Jan, priced at HK$4,137 found 2 days ago
United
Wed, 28 Jan - Sun, 1 Feb
LHR
London
SFO
San Francisco
HK$4,215 Return, found 1 day ago
HK$4,215
Return
found 1 day ago
Select United flight, departing Wed, 28 Jan from London to San Francisco, returning Sun, 1 Feb, priced at HK$4,215 found 1 day ago
Air Canada
Sat, 24 Jan - Thu, 29 Jan
LHR
London
SFO
San Francisco
HK$4,248 Return, found 2 days ago
HK$4,248
Return
found 2 days ago
Select Air Canada flight, departing Sat, 24 Jan from London to San Francisco, returning Thu, 29 Jan, priced at HK$4,248 found 2 days ago
Swiss International Air Lines
Fri, 16 Jan - Sun, 18 Jan
LHR
London
SFO
San Francisco
HK$4,254 Return, found 6 days ago
HK$4,254
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Fri, 16 Jan from London to San Francisco, returning Sun, 18 Jan, priced at HK$4,254 found 6 days ago
American Airlines
Fri, 6 Mar - Sat, 21 Mar
LHR
London
SFO
San Francisco
HK$4,372 Return, found 2 days ago
HK$4,372
Return
found 2 days ago
Select American Airlines flight, departing Fri, 6 Mar from London to San Francisco, returning Sat, 21 Mar, priced at HK$4,372 found 2 days ago
Scandinavian Airlines
Mon, 16 Feb - Sun, 22 Feb
LHR
London
SFO
San Francisco
HK$4,383 Return, found 3 days ago
HK$4,383
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Mon, 16 Feb from London to San Francisco, returning Sun, 22 Feb, priced at HK$4,383 found 3 days ago
Austrian Airlines
Fri, 27 Feb - Sun, 8 Mar
LHR
London
SFO
San Francisco
HK$4,390 Return, found 4 days ago
HK$4,390
Return
found 4 days ago
Select Austrian Airlines flight, departing Fri, 27 Feb from London to San Francisco, returning Sun, 8 Mar, priced at HK$4,390 found 4 days ago
Virgin Atlantic
Fri, 20 Mar - Fri, 10 Apr
LHR
London
SFO
San Francisco
HK$4,446 Return, found 5 days ago
HK$4,446
Return
found 5 days ago
Select Virgin Atlantic flight, departing Fri, 20 Mar from London to San Francisco, returning Fri, 10 Apr, priced at HK$4,446 found 5 days ago
Delta
Fri, 20 Mar - Fri, 10 Apr
LHR
London
SFO
San Francisco
HK$4,490 Return, found 5 days ago
HK$4,490
Return
found 5 days ago
Select Delta flight, departing Fri, 20 Mar from London to San Francisco, returning Fri, 10 Apr, priced at HK$4,490 found 5 days ago

About San Francisco County

Expedia offers flights to San Francisco County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to San Francisco 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 Francisco County that have flexible change policies?
We know that travel schedules can change from one minute to the next, so reserving a flexible airfare with Expedia is always a wise idea. Simply click on "No change fee" directly under the "Flexible change policies" filter. Your low-cost, flexible flight to San Francisco County is just a few clicks away.
Which airlines fly to San Francisco County?
Find a seat with one of these airlines and dynamic San Francisco County will be all yours to explore:

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

How can I find cheap tickets to San Francisco County?
For an amazing deal to San Francisco County, book well ahead of time. Also consider using Expedia's handy "flexible dates" feature at the top of your search results. This will show you prices for the days around your travel dates. In the last seven days, HK$3,981 was the best price for a flight to San Francisco County.
How much is a flight to San Francisco County?
The cost of a round-trip journey to San Francisco County in the last seven days ranged between HK$3,981 and HK$5,303. If you were traveling one way from London (LHR), you could have landed an affordable fare from only HK$3,186.
What are the most popular airports to fly into in San Francisco County?
A major gateway to San Francisco County, about 11,935 flights land at San Francisco Intl. Airport (SFO) every month. Look for a great deal, reserve your seat and prepare to enjoy the best of this popular region.
When is the cheapest time to fly to San Francisco County?
If you're not set on what day you travel to San Francisco County, leave earlier in the week. The most affordable day to take off is generally Tuesday, followed by Monday. Saturday is typically the priciest day, with lots of vacationers choosing to take off on the weekend.
How much is a plane ticket to San Francisco County?
In the last seven days, journeys to San Francisco County varied between HK$3,981 and HK$5,303. Prices generally depend on the departure time, seating class, airline and how early the fare is booked.
What months are the cheapest to book a flight to San Francisco County?
February is the most affordable month to lock in a seat for your San Francisco County escape. Tickets cost the most during the festive month of December, so keep clear of this time if possible.

Trending flights to San Francisco 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.

Korean Air
Tue, 24 Mar - Sun, 29 Mar
HKG
Hong Kong SAR
SFO
San Francisco
HK$5,303 Return, found 4 hours ago
HK$5,303
Return
found 4 hours ago
Select Korean Air flight, departing Tue, 24 Mar from Hong Kong SAR to San Francisco, returning Sun, 29 Mar, priced at HK$5,303 found 4 hours ago
*Available to Expedia members.