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 in the evening, which can drop the price by up to 98% versus a flight in the afternoon.
To save on the cost of your flight from St. Louis to Sofia, book at least 51 days before your planned departure. Booking around this time can save you about 73% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,095 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,578.
It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
---|---|---|---|---|---|---|
![]() |
$483 | $774 | No cancel fee | 75% | ||
![]() |
$651 | $966 | No cancel fee | 69% | ||
![]() |
$775 | $1,045 | No cancel fee | 76% |