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Cheap flights from San Francisco to Sydney from £480

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SYD
20 Feb — 27 Feb1
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
Explore the most affordable flight options available from San Francisco to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2026.

Sun 1/222:05
SFO
-
SYD
1 stop29h 00m
Fiji Airways
Sun 15/206:00
SYD
-
SFO
1 stop25h 25m
Fiji Airways
Deal found 20/1£723
Fri 13/321:30
SFO
-
SYD
Nonstop14h 40m
Multiple Airlines
Wed 18/314:00
SYD
-
SFO
1 stop17h 25m
Multiple Airlines
Deal found 19/1£778
Thu 21/508:15
SFO
-
SYD
1 stop17h 35m
Alaska Airlines
Tue 2/620:45
SYD
-
SFO
1 stop16h 50m
Alaska Airlines
Deal found 19/1£790
Thu 7/519:59
SFO
-
SYD
1 stop29h 51m
Alaska Airlines
Thu 14/520:45
SYD
-
SFO
1 stop16h 50m
Alaska Airlines
Deal found 19/1£793
Tue 19/519:51
SFO
-
SYD
1 stop29h 59m
Alaska Airlines
Tue 26/520:45
SYD
-
SFO
1 stop16h 50m
Alaska Airlines
Deal found 19/1£803
Sun 22/218:33
SFO
-
SYD
1 stop30h 12m
Multiple Airlines
Tue 3/321:40
SYD
-
SFO
1 stop27h 50m
Multiple Airlines
Deal found 19/1£816
Sun 15/1122:05
SFO
-
SYD
1 stop19h 30m
Multiple Airlines
Thu 19/1122:00
SYD
-
SFO
2 stops33h 25m
Multiple Airlines
Deal found 19/1£822
Sun 27/923:25
SFO
-
SYD
1 stop19h 20m
Fiji Airways
Wed 7/1014:15
SYD
-
SFO
1 stop17h 10m
Fiji Airways
Deal found 20/1£823
Fri 11/918:50
SFO
-
SYD
2 stops23h 55m
Multiple Airlines
Fri 18/913:15
SYD
-
SFO
1 stop17h 10m
Multiple Airlines
Deal found 19/1£830
Sun 23/823:25
SFO
-
SYD
1 stop19h 20m
Multiple Airlines
Mon 31/813:15
SYD
-
SFO
2 stops20h 43m
Multiple Airlines
Deal found 19/1£832

Find flight deals from San Francisco to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2026.

Round-trip from

£723

One-way from

£480

Popular in

December

Cheapest in

February

Average price

£927
Fiji Airways
  • Fiji Airways
  • 1/2-15/2
  • 2 total stops
  • 54h 25m total
  • San Francisco to Sydney
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 23/4
  • 1 total stop
  • 29h 51m total
  • San Francisco to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 January 2026.
Use the filters below to find and compare flights from San Francisco to Sydney that are best for you.

Fly from

San Francisco

Fly to

Sydney

Route

Depart

Return

Price

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Thu 5/3

07:00-19:45

1 stop17h 45m

Sydney Kingsford Smith

Sun 15/3

21:40-06:30

1 stop26h 50m

£790

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Mon 29/6

08:25-18:50

1 stop17h 25m

Sydney Kingsford Smith

Sun 12/7

20:45-20:25

1 stop16h 40m

£790

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Thu 7/5

19:59-18:50

1 stop29h 51m

Sydney Kingsford Smith

Thu 14/5

20:45-20:35

1 stop16h 50m

£793

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Tue 31/3

18:36-18:50

1 stop30h 14m

Sydney Kingsford Smith

Thu 16/4

20:45-05:25

1 stop25h 40m

£803

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Sun 7/6

19:51-18:50

1 stop29h 59m

Sydney Kingsford Smith

Tue 4/8

20:45-20:25

1 stop16h 40m

£803

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Tue 9/6

19:51-18:50

1 stop29h 59m

Sydney Kingsford Smith

Tue 23/6

20:45-20:25

1 stop16h 40m

£803

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Tue 9/6

19:51-18:50

1 stop29h 59m

Sydney Kingsford Smith

Sun 21/6

20:45-20:25

1 stop16h 40m

£803

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Fri 12/6

08:25-18:50

1 stop17h 25m

Sydney Kingsford Smith

Tue 23/6

20:45-16:34

2 stops36h 49m

£850

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Thu 30/4

08:15-18:50

1 stop17h 35m

Sydney Kingsford Smith

Thu 14/5

20:45-07:27

2 stops27h 42m

£851

San FranciscoSydney

SFO - SYD

SFOSYD

San Francisco

Sat 13/6

08:25-18:50

1 stop17h 25m

Sydney Kingsford Smith

Thu 18/6

20:45-07:25

2 stops27h 40m

£858

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 22 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a return flight from San Francisco to Sydney. Price data was last updated on 16 January 2026.

The best time to book flights from San Francisco to Sydney is 47 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, August is the cheapest month in which you can book a flight from San Francisco to Sydney (average of £371). Flying from San Francisco to Sydney in December is currently the most expensive (average of £622). 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?

Find hourly flight availability from San Francisco to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2026.

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.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 21 January 2026.
See what other customers who have flown with United Airlines from San Francisco to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,188 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,188 reviews
United Airlines
7.4
Good
9,188 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Francisco to Sydney?

    If you book a flight from San Francisco to Sydney, you will be flying from San Francisco to Kingsford Smith. Flights to Sydney Kingsford Smith (SYD) from San Francisco (SFO) take 14h 40m for a nonstop flight. There are 9 flights from San Francisco to Sydney per day from 1 airline.

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

    This flight path from San Francisco to Sydney Kingsford Smith was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For as low as £790, Alaska Airlines can have you in Sydney from San Francisco in 17h 25m. Airlines will cover a distance of 7420 mi.

  • What is the cheapest airline to fly from San Francisco to Sydney round-trip?

    Flying on United Airlines is currently your cheapest option to Sydney, with prices starting at £714. United Airlines is currently priced 18% below the average price you’ll pay for this route.

  • 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 Alaska Airlines (86%), American Airlines (76%) or Qantas Airways (76%) 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, August is the cheapest month in which you can book a flight from San Francisco to Sydney (average of £371). Flying from San Francisco to Sydney in December is currently the most expensive (average of £622). 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
Bondi Beach
Wollongong
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights

Top airline flying from San Francisco to Sydney

Discover the top airline that operate flights from San Francisco to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£714Average£1,128FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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