$682 Cheap Flights from Sofia (SOF) to Sydney (SYD)

View $682 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from Sofia Airport (SOF) to Sydney Airport (SYD)

Cheap Flights from Sofia to Sydney (SOF-SYD)

Prices were available within the past 7 days and start at $682 for one-way flights and $1,185 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Nov 5 - Sun, Nov 9
SOF
Sofia
SYD
Sydney
$1,185 Roundtrip, found 6 days ago
$1,185
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Sofia to Sydney, returning Sun, Nov 9, priced at $1,185 found 6 days ago
Lufthansa
Wed, Nov 5 - Fri, Nov 7
SOF
Sofia
SYD
Sydney
$1,222 Roundtrip, found 6 days ago
$1,222
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Sofia to Sydney, returning Fri, Nov 7, priced at $1,222 found 6 days ago
Lufthansa
Wed, Nov 5 - Sat, Nov 8
SOF
Sofia
SYD
Sydney
$1,230 Roundtrip, found 6 days ago
$1,230
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Sofia to Sydney, returning Sat, Nov 8, priced at $1,230 found 6 days ago
British Airways
Fri, May 1 - Sun, May 17
SOF
Sofia
SYD
Sydney
$1,241 Roundtrip, found 2 days ago
$1,241
Roundtrip
found 2 days ago
Select British Airways flight, departing Fri, May 1 from Sofia to Sydney, returning Sun, May 17, priced at $1,241 found 2 days ago
British Airways
Sat, Nov 1 - Tue, Nov 4
SOF
Sofia
SYD
Sydney
$1,243 Roundtrip, found 5 days ago
$1,243
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Nov 1 from Sofia to Sydney, returning Tue, Nov 4, priced at $1,243 found 5 days ago
Lufthansa
Thu, Nov 6 - Sun, Nov 9
SOF
Sofia
SYD
Sydney
$1,244 Roundtrip, found 6 days ago
$1,244
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Thu, Nov 6 from Sofia to Sydney, returning Sun, Nov 9, priced at $1,244 found 6 days ago
Lufthansa
Wed, Nov 5 - Sun, Nov 16
SOF
Sofia
SYD
Sydney
$1,245 Roundtrip, found 6 days ago
$1,245
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Sofia to Sydney, returning Sun, Nov 16, priced at $1,245 found 6 days ago
Air France
Tue, Nov 4 - Mon, Nov 10
SOF
Sofia
SYD
Sydney
$1,383 Roundtrip, found 6 days ago
$1,383
Roundtrip
found 6 days ago
Select Air France flight, departing Tue, Nov 4 from Sofia to Sydney, returning Mon, Nov 10, priced at $1,383 found 6 days ago
SriLankan Airlines
Fri, Sep 5 - Sat, Sep 13
SOF
Sofia
SYD
Sydney
$1,841 Roundtrip, found 5 days ago
$1,841
Roundtrip
found 5 days ago
Select SriLankan Airlines flight, departing Fri, Sep 5 from Sofia to Sydney, returning Sat, Sep 13, priced at $1,841 found 5 days ago
Turkish Airlines
Fri, May 1 - Sun, May 17
SOF
Sofia
SYD
Sydney
$1,854 Roundtrip, found 2 days ago
$1,854
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Fri, May 1 from Sofia to Sydney, returning Sun, May 17, priced at $1,854 found 2 days ago
Flights from Sofia (SOF) to Sydney (SYD)
Origin airport
Sofia
Destination airport
Kingsford Smith Intl.
Airlines serving
British Airways, Qatar Airways, Turkish Airlines
Roundtrip price
$1,185
Distance
9587 mi

Sofia to Sydney Flights

The cheapest times to fly from Sofia to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sofia to Sydney are during the month of November. You can find some of the cheapest flights from Sofia to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sofia to Sydney

Sunday is one of the best days to book for cheap flights from Sofia to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sofia to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sofia to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $682 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sofia to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sofia to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD) cost?
Snag a cheap one-way flight from $682 or cheap return flight from $1,185 from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD)?
The cheapest month to fly from SOF to SYD is November, when demand is low. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SOF to SYD flight.
How many flights per day from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD)?
There are no daily nonstop flights from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SOF to SYD?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD)?
Opt for a flight from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD) last-minute?
Waiting until just before your departure to book a flight from SOF to SYD often results in higher prices. While it's possible to find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of snagging a bargain.
Is it cheaper to book a SOF to SYD flight and hotel package?
Opting for a SOF to SYD flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sofia Airport (SOF) to Kingsford Smith Intl. Airport (SYD)?
Typically, you're able to reschedule or cancel your SOF to SYD flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need more information, head to our Customer Service portal.

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*Available to One Key members.