Cheap flights from San Francisco to Sydney from £426

SFO — SYD
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Sydney

Thu 26/1107:20 -
1 stop28h 05m
Thu 3/1211:15 -
2 stops25h 52m
Deal found 29/10£942
Sat 14/1114:02 -
1 stop21h 23m
Sat 21/1111:15 -
1 stop27h 55m
Deal found 28/10£966
Sat 14/1115:38 -
1 stop19h 47m
Thu 14/111:15 -
1 stop18h 10m
Deal found 28/10£967
Sat 14/1114:02 -
1 stop21h 23m
Sun 17/111:15 -
1 stop18h 10m
Deal found 27/10£999
Fri 27/1122:31 -
1 stop36h 54m
Sun 31/121:25 -
Nonstop13h 30m
Deal found 28/10£1,000
Tue 10/1115:38 -
1 stop19h 47m
Tue 17/1111:15 -
1 stop23h 33m
Deal found 27/10£1,004
Sat 5/1207:09 -
1 stop28h 16m
Sat 12/1211:15 -
2 stops25h 57m
Deal found 28/10£1,010
Fri 4/1221:45 -
1 stop37h 40m
Sat 12/1211:15 -
2 stops25h 57m
Deal found 29/10£1,019
Sun 1/1120:45 -
Nonstop14h 40m
Sun 31/111:15 -
1 stop22h 43m
Deal found 27/10£1,024
Fri 27/1120:45 -
Nonstop14h 40m
Fri 4/1211:15 -
1 stop17h 33m
Deal found 27/10£1,028

Find flight deals from San Francisco to Sydney

Round-trip from

£928

One-way from

£426

Popular in

December

Cheapest in

March

Average price

£1,005
Alaska Airlines
  • Alaska Airlines
  • 31/3-18/4
  • 1 total stop
  • 40h 50m total
  • San Francisco to Sydney
Alaska Airlines
  • Alaska Airlines
  • 12/2-31/12
  • 1 total stop
  • 24h 25m total
  • San Francisco to Sydney
Highest demand for flights based on searches. 13% potential increase in price (£114 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£29 potential savings vs. average return price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San Francisco to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Tue 2/2

13:14-06:25

1 stop22h 11m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£437

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Mon 8/2

21:14-06:25

1 stop38h 11m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£450

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Wed 11/11

14:02-06:25

1 stop21h 23m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£482

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Thu 25/3

23:55-09:20

Nonstop15h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£756

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Sun 6/12

23:05-09:20

Nonstop15h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£784

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Thu 18/3

22:20-20:50

3 stops52h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£828

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Sat 5/12

23:05-09:20

Nonstop15h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£840

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Sat 9/1

17:15-06:50

2 stops42h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£901

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Sat 14/11

23:05-09:20

Nonstop15h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£924

San FranciscoSydney

SFO San Francisco - SYD Sydney Kingsford Smith

SFOSYD

San Francisco

Fri 20/11

23:05-09:20

Nonstop15h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

£924

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from San Francisco to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from San Francisco with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Sydney

How far ahead should I book a flight from San Francisco to Sydney?

The best time to book flights from San Francisco to Sydney is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Sydney?

Currently, March is the cheapest month in which you can book a flight from San Francisco to Sydney (average of £799). Flying from San Francisco to Sydney in December is currently the most expensive (average of £1,379). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to SYD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Sydney as you normally would.

How much does it cost for a return flight from San Francisco to Sydney?

Airfare is typical for this route at the moment.

San Francisco to Sydney flights typically cost between £784 and £1,139 in March.
The cheapest return price found within the last 5 days was £928 on Alaska Airlines (31 Mar–18 Apr).

Related info for your journey

  • How popular is this San Francisco to Sydney flight route?

  • How long is the flight from San Francisco to Sydney?

    For as low as £1,313, Delta can have you in Sydney from San Francisco in 15h 15m. Airlines will cover a distance of 7420 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from San Francisco to Sydney?

    No one likes to see their flight delayed. When booking a flight from San Francisco to Sydney consider choosing American Airlines (96%), Alaska Airlines (96%) or Qantas Airways (96%) as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from San Francisco to Sydney that include hotel bookings?

    Yes. In addition to deals on San Francisco to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Sydney.

  • Can I find deals for business class flights from San Francisco to Sydney?

    Yes. Cheapflights offers flight deals from San Francisco to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Sydney?

    Currently, March is the cheapest month in which you can book a flight from San Francisco to Sydney (average of £799). Flying from San Francisco to Sydney in December is currently the most expensive (average of £1,379). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for San Francisco to Sydney

Fly with Cheapflights

How does Cheapflights help users find flights from San Francisco to Sydney?

Deals for San Francisco to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Sydney?

Cheapflights helps you find that perfect flight to Sydney from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Francisco to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from San Francisco to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco to Sydney become cheaper?

Yes, Cheapflights offers price alerts on San Francisco to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.