$692 Cheap Flights from Sydney (SYD) to Sofia (SOF)

View $692 flight on Sat, Oct 18, 2025Opens in a new window

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

Cheap Flights from Sydney to Sofia (SYD-SOF)

Prices were available within the past 7 days and start at $692 for one-way flights and $1,112 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qantas Airways
Sun, Nov 9 - Mon, Nov 24
SYD
Sydney
SOF
Sofia
$1,112 Roundtrip, found 2 days ago
$1,112
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Sun, Nov 9 from Sydney to Sofia, returning Mon, Nov 24, priced at $1,112 found 2 days ago
Etihad Airways
Wed, Nov 12 - Mon, Nov 24
SYD
Sydney
SOF
Sofia
$1,134 Roundtrip, found 2 days ago
$1,134
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Wed, Nov 12 from Sydney to Sofia, returning Mon, Nov 24, priced at $1,134 found 2 days ago
Etihad Airways
Wed, Jan 28 - Sun, Feb 15
SYD
Sydney
SOF
Sofia
$1,136 Roundtrip, found 2 days ago
$1,136
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Wed, Jan 28 from Sydney to Sofia, returning Sun, Feb 15, priced at $1,136 found 2 days ago
Qantas Airways
Sat, Nov 8 - Mon, Nov 24
SYD
Sydney
SOF
Sofia
$1,138 Roundtrip, found 2 days ago
$1,138
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Sat, Nov 8 from Sydney to Sofia, returning Mon, Nov 24, priced at $1,138 found 2 days ago
Etihad Airways
Wed, Nov 5 - Mon, Nov 17
SYD
Sydney
SOF
Sofia
$1,144 Roundtrip, found 2 days ago
$1,144
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Wed, Nov 5 from Sydney to Sofia, returning Mon, Nov 17, priced at $1,144 found 2 days ago
Qantas Airways
Sat, Nov 8 - Sat, Nov 22
SYD
Sydney
SOF
Sofia
$1,165 Roundtrip, found 2 days ago
$1,165
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Sat, Nov 8 from Sydney to Sofia, returning Sat, Nov 22, priced at $1,165 found 2 days ago
Etihad Airways
Wed, Nov 12 - Thu, Nov 27
SYD
Sydney
SOF
Sofia
$1,214 Roundtrip, found 2 days ago
$1,214
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Wed, Nov 12 from Sydney to Sofia, returning Thu, Nov 27, priced at $1,214 found 2 days ago
Turkish Airlines
Sun, Nov 9 - Fri, Nov 28
SYD
Sydney
SOF
Sofia
$1,264 Roundtrip, found 2 days ago
$1,264
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sun, Nov 9 from Sydney to Sofia, returning Fri, Nov 28, priced at $1,264 found 2 days ago
Austrian Airlines
Wed, Nov 12 - Sun, Nov 23
SYD
Sydney
SOF
Sofia
$1,265 Roundtrip, found 2 days ago
$1,265
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Wed, Nov 12 from Sydney to Sofia, returning Sun, Nov 23, priced at $1,265 found 2 days ago
Lufthansa
Tue, Oct 28 - Mon, Nov 10
SYD
Sydney
SOF
Sofia
$1,270 Roundtrip, found 2 days ago
$1,270
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Oct 28 from Sydney to Sofia, returning Mon, Nov 10, priced at $1,270 found 2 days ago

Alternative airports near Sofia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $1,264
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $1,264
Flights from Sydney (SYD) to Sofia (SOF)
Origin airport
Kingsford Smith Intl.
Destination airport
Sofia
Roundtrip price
$1,112
Distance
9587 mi

Sydney to Sofia Flights

The cheapest times to fly from Sydney to Sofia

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 Sydney to Sofia are during the month of November. You can find some of the cheapest flights from Sydney to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Sofia

Sunday is one of the best days to book for cheap flights from Sydney to Sofia: 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 Sydney to Sofia

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 Sydney to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $692 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 Sydney to Sofia 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 Sydney to Sofia 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 Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF) cost?
Secure a cheap one-way flight from $692 or cheap return flight from $1,112 from Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF)?
November is the most affordable month to fly from SYD to SOF. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF)?
To find the cheapest airline that'll fly you from SYD to SOF, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF)?
You'll have to book a flight with a layover when traveling from Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from SYD to SOF?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary based on the season, airline 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 Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF)?
To land at Sofia Airport (SOF) on schedule, pick a flight that takes off from Kingsford Smith Intl. Airport (SYD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF) last-minute?
Holding off until just before your departure to book a ticket from SYD to SOF often results in higher prices. While it's possible to find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book a SYD to SOF flight and hotel package?
Compared with arranging flights and hotels separately, booking a SYD to SOF flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Sofia Airport (SOF)?
If you booked your SYD to SOF flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.