$425 Cheap Flights from Singapore (SIN) to Sofia (SOF)

View $425 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to Sofia Airport (SOF)

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Cheap Flights from Singapore to Sofia (SIN-SOF)

Prices were available within the past 7 days and start at $425 for one-way flights and $872 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$872 Roundtrip, found 10 hours ago
$872
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $872 found 10 hours ago
Lufthansa
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$906 Roundtrip, found 10 hours ago
$906
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $906 found 10 hours ago
Gulf Air
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$913 Roundtrip, found 10 hours ago
$913
Roundtrip
found 10 hours ago
Select Gulf Air flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $913 found 10 hours ago
Lufthansa
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$934 Roundtrip, found 10 hours ago
$934
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $934 found 10 hours ago
Lufthansa
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$935 Roundtrip, found 10 hours ago
$935
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $935 found 10 hours ago
Gulf Air
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$953 Roundtrip, found 10 hours ago
$953
Roundtrip
found 10 hours ago
Select Gulf Air flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $953 found 10 hours ago
Lufthansa
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$968 Roundtrip, found 10 hours ago
$968
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $968 found 10 hours ago
Swiss International Air Lines
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$1,011 Roundtrip, found 10 hours ago
$1,011
Roundtrip
found 10 hours ago
Select Swiss International Air Lines flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $1,011 found 10 hours ago
Emirates
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$1,060 Roundtrip, found 10 hours ago
$1,060
Roundtrip
found 10 hours ago
Select Emirates flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $1,060 found 10 hours ago
Qatar Airways
Wed, Oct 8 - Wed, Oct 15
SIN
Singapore
SOF
Sofia
$1,086 Roundtrip, found 10 hours ago
$1,086
Roundtrip
found 10 hours ago
Select Qatar Airways flight, departing Wed, Oct 8 from Singapore to Sofia, returning Wed, Oct 15, priced at $1,086 found 10 hours ago

Frequently asked questions

How much does a flight from Changi Airport (SIN) to Sofia Airport (SOF) cost?
Lock in a cheap one-way flight from $425 or cheap return flight from $872 from Changi Airport (SIN) 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 Changi Airport (SIN) to Sofia Airport (SOF)?
Traveling in October can help you save, as it's the cheapest month for flights between SIN and SOF. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Changi Airport (SIN) to Sofia Airport (SOF)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SIN to SOF flight.
How many flights per day from Changi Airport (SIN) to Sofia Airport (SOF)?
You'll have to book a flight with a layover if you're traveling from Changi Airport (SIN) to Sofia Airport (SOF). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SIN to SOF?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the airline, season 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 Changi Airport (SIN) to Sofia Airport (SOF)?
To reach Sofia Airport (SOF) on time, book a flight that leaves Changi Airport (SIN) 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 Changi Airport (SIN) to Sofia Airport (SOF) last-minute?
Last-minute fares from SIN to SOF are typically more expensive. To secure the lowest rates, start looking for flights early. That said, if you can play around with your travel dates, it's possible to score a cheap fare right before you leave.
Is it cheaper to book a SIN to SOF flight and hotel package?
Securing a SIN to SOF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of hotels and then add activities, car rentals 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 Changi Airport (SIN) to Sofia Airport (SOF)?
In most instances, you can cancel or modify your SIN to SOF flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need more details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Changi
Destination airport
Sofia
Airlines serving
Lufthansa, Swiss International Air Lines
Roundtrip price
$871
Distance
5677 mi

Book with confidence

Book with confidence

Singapore to Sofia Flights

The cheapest times to fly from Singapore 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 Singapore to Sofia are during the month of October. You can find some of the cheapest flights from Singapore to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Singapore to Sofia

Sunday is one of the best days to book for cheap flights from Singapore 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 Singapore 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 Singapore to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $425 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 Singapore 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 Singapore 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.

 

Singapore to Sofia Flights

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*Available to One Key members.