Cheap flights from St. Louis (STL) to Sofia (SOF) from $1,356

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

To save on the cost of your flight from St. Louis to Sofia, book at least 58 days before your planned departure. Booking around this time can save you about 55% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,365 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,546.

The best pricing can be found in the month of January. Prices to Sofia from St. Louis average $1,040. You can even find prices in January for less than $1,040, as users have found deals to Sofia from as low as $370. The month of September appears to be one of the more expensive times to travel to Sofia from St. Louis. Flying in the targeted month can save you up to 30%.

When flying from St. Louis to Sofia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 27% versus a flight in the afternoon.

Due to the rapidly changing circumstances due to COVID-19, airlines like Lufthansa, United Airlines, and Turkish Airlines flying from Lambert-St Louis to Sofia have implemented new flexible cancellation policies.

Yes, there are multiple flights from St. Louis to Sofia for under $1,400. The cheapest flight booked recently is on British Airways for just $1,356, but on average you can expect to pay $2,673.

British Airways, at $1,356, was found to be the cheapest airline from St. Louis to Sofia.Alternate airlines to your destination round-trip include Lufthansa and United Airlines.

Lufthansa, Turkish Airlines and United Airlines are the most popular airlines when flying from St. Louis to Sofia.

Great question - STL to SOF just means Lambert-St Louis Airport to Sofia Airport. Now you’ll know what these unique codes when you look for flights!