Cheap flights from San Francisco to Perth from $791

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PER
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from San Francisco to Perth are usually found in September or March, booked 86 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from San Francisco to Perth

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Perth (PER). 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 16 September 2025.

Round-trip from

$1,355

One-way from

$791

Popular in

December

Cheapest in

September

Average price

$1,750
Philippine Airlines
  • Philippine Airlines
  • 20/10-3/11
  • 2 total stops
  • 67h 20m total
  • San Francisco to Perth
3/12
  • 3/12
  • 3 total stops
  • 40h 10m total
  • San Francisco to Perth
Highest demand for flights based on searches. 25% potential increase in price ($1,147 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease ($185 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from San Francisco to Perth

Cheapest flights from San Francisco to Perth
Explore the most affordable flight options available from San Francisco to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Mon 20/1023:55SFO - PER
1 stop40h 30mPhilippine Airlines
Mon 3/1108:40PER - SFO
1 stop26h 50mPhilippine Airlines
Deal found 14/9$1,355
Mon 27/1023:30SFO - PER
2 stops37h 50mMultiple Airlines
Mon 10/1105:35PER - SFO
2 stops53h 55mMultiple Airlines
Deal found 15/9$1,363
Mon 27/1023:30SFO - PER
1 stop40h 50mPhilippine Airlines
Mon 10/1108:40PER - SFO
1 stop26h 50mPhilippine Airlines
Deal found 15/9$1,366
Wed 17/911:35SFO - PER
2 stops33h 35mMultiple Airlines
Tue 30/923:35PER - SFO
2 stops48h 55mMultiple Airlines
Deal found 13/9$1,519
Thu 30/1011:50SFO - PER
1 stop25h 30mMultiple Airlines
Thu 6/1105:35PER - SFO
1 stop43h 40mMultiple Airlines
Deal found 14/9$1,573
Mon 20/1011:30SFO - PER
1 stop26h 40mSingapore Airlines
Sun 16/1106:40PER - SFO
1 stop41h 10mSingapore Airlines
Deal found 14/9$1,654
Sun 19/1000:20SFO - PER
1 stop40h 25mCathay Pacific
Sun 2/1100:15PER - SFO
1 stop25h 30mCathay Pacific
Deal found 14/9$1,670
Wed 17/923:55SFO - PER
2 stops29h 45mMultiple Airlines
Wed 24/921:55PER - SFO
2 stops37h 55mMultiple Airlines
Deal found 15/9$1,673
Tue 21/1011:30SFO - PER
1 stop41h 10mMultiple Airlines
Mon 17/1123:10PER - SFO
2 stops48h 40mMultiple Airlines
Deal found 14/9$1,709
Tue 16/900:20SFO - PER
1 stop31h 20mCathay Pacific
Mon 29/900:10PER - SFO
1 stop26h 05mCathay Pacific
Deal found 14/9$1,711

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Perth 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 647,157 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from San Francisco to Perth that are best for you.

Fly from

San Francisco

Fly to

Perth

Route

Depart

Return

Price

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Sun 8/3

23:30-04:20

2 stops37h 50m

Perth

Fri 20/3

05:35-20:30

2 stops29h 55m

$1,567

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Thu 16/10

23:10-07:45

1 stop41h 35m

Perth

Sat 25/10

00:10-22:15

1 stop37h 05m

$1,763

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Sun 2/11

09:40-14:45

1 stop37h 05m

Perth

Thu 13/11

13:50-07:50

1 stop34h 00m

$1,813

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Sun 19/10

23:10-07:45

1 stop41h 35m

Perth

Sat 25/10

00:10-22:15

1 stop37h 05m

$1,838

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Sat 18/10

23:10-22:40

1 stop32h 30m

Perth

Tue 21/10

00:10-17:30

1 stop32h 20m

$1,838

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Thu 6/11

21:10-22:30

1 stop33h 20m

Perth

Sat 8/11

00:45-17:00

1 stop32h 15m

$2,035

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Tue 7/10

23:55-04:30

2 stops37h 35m

Perth

Thu 16/10

08:45-20:50

1 stop27h 05m

$2,091

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Thu 30/10

13:20-15:55

2 stops35h 35m

Perth

Thu 6/11

10:30-09:45

2 stops39h 15m

$2,092

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Tue 14/10

11:30-05:50

2 stops27h 20m

Perth

Wed 22/10

21:55-09:40

1 stop26h 45m

$2,097

San FranciscoPerth

SFO - PER

SFOPER

San Francisco

Wed 3/12

11:40-19:50

3 stops40h 10m

$791

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 14 results
1
2

Best time to book a flight from San Francisco to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth 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 Perth

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

Use this chart to determine the optimal time to book a return flight from San Francisco to Perth. Price data was last updated on 12 September 2025.

The best time to book flights from San Francisco to Perth is 86 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 Perth?

Currently, May is the cheapest month in which you can book a flight from San Francisco to Perth (average of $286). Flying from San Francisco to Perth in December is currently the most expensive (average of $409). 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 PER?

Find hourly flight availability from San Francisco to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

It’s typically best to fly out from San Francisco to Perth at midday. Doing so could potentially save you 1% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from San Francisco to Perth?

    A quick flight from San Francisco to Perth can take about 37h 05m. Cathay Pacific provides one of the quickest options available for as low as $1,813. Airlines will cover a distance of 14724 km. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Perth 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 Perth?

    Currently, May is the cheapest month in which you can book a flight from San Francisco to Perth (average of $286). Flying from San Francisco to Perth in December is currently the most expensive (average of $409). 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 Perth?

Book flights to Perth if you plan to visit one of these locations
Scarborough
Mandurah
Fremantle
Rottnest Island

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Perth

See prices for flight routes from nearby airports that may be better suited for you.

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 Perth?

When you search for this flight from San Francisco to Perth, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Perth 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 Perth with no change fees?

Yes, we can. To see specific flights from San Francisco to Perth with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for San Francisco to Perth flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your 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.