$421 Cheap Flights from Singapore (SIN) to Sofia (SOF)

View $421 flight on Thu, Mar 5, 2026Opens 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 $421 for one-way flights and $797 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Gulf Air
Thu, Mar 5 - Sun, Mar 15
SIN
Singapore
SOF
Sofia
$797 Roundtrip, found 4 days ago
$797
Roundtrip
found 4 days ago
Select Gulf Air flight, departing Thu, Mar 5 from Singapore to Sofia, returning Sun, Mar 15, priced at $797 found 4 days ago
Turkish Airlines
Thu, Mar 5 - Sun, Mar 15
SIN
Singapore
SOF
Sofia
$872 Roundtrip, found 4 days ago
$872
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Thu, Mar 5 from Singapore to Sofia, returning Sun, Mar 15, priced at $872 found 4 days ago
Turkish Airlines
Thu, Mar 5 - Sun, Mar 15
SIN
Singapore
SOF
Sofia
$899 Roundtrip, found 4 days ago
$899
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Thu, Mar 5 from Singapore to Sofia, returning Sun, Mar 15, priced at $899 found 4 days ago
Gulf Air
Thu, Mar 5 - Sun, Mar 15
SIN
Singapore
SOF
Sofia
$902 Roundtrip, found 4 days ago
$902
Roundtrip
found 4 days ago
Select Gulf Air flight, departing Thu, Mar 5 from Singapore to Sofia, returning Sun, Mar 15, priced at $902 found 4 days ago
Gulf Air
Thu, Mar 5 - Sun, Mar 15
SIN
Singapore
SOF
Sofia
$906 Roundtrip, found 4 days ago
$906
Roundtrip
found 4 days ago
Select Gulf Air flight, departing Thu, Mar 5 from Singapore to Sofia, returning Sun, Mar 15, priced at $906 found 4 days ago
Swiss International Air Lines
Thu, Mar 5 - Sun, Mar 15
SIN
Singapore
SOF
Sofia
$989 Roundtrip, found 4 days ago
$989
Roundtrip
found 4 days ago
Select Swiss International Air Lines flight, departing Thu, Mar 5 from Singapore to Sofia, returning Sun, Mar 15, priced at $989 found 4 days ago
Qatar Airways
Fri, Jun 19 - Sun, Jun 28
SIN
Singapore
SOF
Sofia
$1,027 Roundtrip, found 4 days ago
$1,027
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Fri, Jun 19 from Singapore to Sofia, returning Sun, Jun 28, priced at $1,027 found 4 days ago
Qatar Airways
Fri, Jun 19 - Sun, Jun 28
SIN
Singapore
SOF
Sofia
$1,029 Roundtrip, found 4 days ago
$1,029
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Fri, Jun 19 from Singapore to Sofia, returning Sun, Jun 28, priced at $1,029 found 4 days ago
Emirates
Fri, Jun 19 - Sun, Jun 28
SIN
Singapore
SOF
Sofia
$1,033 Roundtrip, found 4 days ago
$1,033
Roundtrip
found 4 days ago
Select Emirates flight, departing Fri, Jun 19 from Singapore to Sofia, returning Sun, Jun 28, priced at $1,033 found 4 days ago
Emirates
Fri, Jun 19 - Sun, Jun 28
SIN
Singapore
SOF
Sofia
$1,054 Roundtrip, found 4 days ago
$1,054
Roundtrip
found 4 days ago
Select Emirates flight, departing Fri, Jun 19 from Singapore to Sofia, returning Sun, Jun 28, priced at $1,054 found 4 days ago

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Frequently asked questions

How much does a flight from Singapore (SIN-Changi) to Sofia (SOF) cost?
You can find cheap one-way flights from $421 and cheap return flights from $797 Singapore (SIN-Changi) to Sofia (SOF) with Expedia. One-way flights typically cost between $490 and $3980, and return flights often range between $1078 and $4666. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Singapore (SIN-Changi) to Sofia (SOF) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Singapore (SIN-Changi) to Sofia (SOF)?
The cheapest month to fly from SIN to SOF is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Singapore (SIN-Changi) to Sofia (SOF)?
Enter SIN to SOF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Singapore (SIN-Changi) to Sofia (SOF)?
Gulf Air is one of the cheapest airlines offering connecting flights from Changi (SIN) to Sofia (SOF) with a layover in Bahrain Intl. (BAH), with round-trip tickets starting from around $949. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Singapore (SIN-Changi) to Sofia (SOF)?
To find a cheap flight from Singapore (SIN-Changi) to Sofia (SOF), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Singapore (SIN-Changi) to Sofia (SOF)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Singapore (SIN-Changi) to Sofia (SOF)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from SIN to SOF. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Singapore (SIN-Changi) to Sofia (SOF)?
The most popular departure times for flights from Singapore (SIN) to Sofia (SOF) are in the late evening, from 9pm to midnight. This accounts for around 44% of total traffic. Many major carriers, including Lufthansa, Emirates, and Qatar Airways, offer flights during this window. Many travelers prefer this timing as it allows them to maximize their day in Singapore before heading to Sofia.
How long does it take to fly from Singapore (SIN-Changi) to Sofia (SOF)?
A flight from SIN to SOF with a layover takes around 18 hours 30 minutes, with the route covering approximately 5,678 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Singapore (SIN-Changi) to Sofia (SOF)?
Business class seats are offered on the SIN to SOF route. Airlines that offer business class service on this route include:

  • Turkish Airlines
  • Thai Airways International
  • Emirates
  • Gulf Air
  • Lufthansa
  • Swiss International Air Lines
  • Finnair
  • Singapore Airlines
  • Etihad Airways
  • Qatar Airways

First class is available with Swiss International Air Lines and Singapore Airlines.
How do I earn miles on a Singapore (SIN-Changi) to Sofia (SOF) flight with Expedia?
It's easy to earn miles on a Singapore (SIN-Changi) to Sofia (SOF) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Singapore (SIN-Changi) to Sofia (SOF) at the last minute?
Typically, booking a last minute flight from Singapore (SIN-Changi) to Sofia (SOF) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Singapore (SIN-Changi) to Sofia (SOF) flight and hotel package?
Securing a Singapore (SIN-Changi) to Sofia (SOF) Sofia Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Singapore (SIN-Changi) to Sofia (SOF)?
If you booked your Singapore (SIN-Changi) to Sofia (SOF) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, 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 if you'd like more information.

Travel information

Origin airport
Changi
Destination airport
Sofia
Roundtrip price
$796
Distance
5677 mi

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 March. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $421 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

*Flight schedules are subject to change.

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*Available to One Key members.