Cheap flights from St Louis (STL) to Sofia (SOF)
Know your dates, get live prices in seconds:
We work with more than 300 partners to bring you better travel deals
How to find the cheapest flight from
St Louis (STL) to Sofia (SOF)
All the information you need to plan the best STL to SOF flight in 2021: compare St Louis to Sofia flight prices with the expected peak season, weather and rainfall in Sofia.
What is the cheapest day to fly round-trip from St Louis to Sofia?
Travelers have found that booking a Monday departure is the best way to save up to 47% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
How far in advance should I book a flight from St Louis to Sofia?
To save up to 15% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St Louis to Sofia from $950 1-2 weeks out and tickets from $959 for flights departing within the next 72 hours.
What is the cheapest month to fly from St Louis to Sofia?
Due to multiple factors, expect to potentially pay more when booking in June. For low rates, March can be a great choice for travel to Sofia. Flights to Sofia from St Louis in March are about $909 on average during March, but can be found for as low as $578.
When is the cheapest time to fly from St Louis to Sofia (STL - SOF)?
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 37% versus a flight in the afternoon.
Cheap flights from St Louis to Sofia in April, May 2021
The best prices found for STL to SOF flights for April, May
21 May - 23 May
$1,545pp
STL
Lambert-St Louis
Multiple Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Austrian Airlines
2 STOPS
STL
Lambert-St Louis
21 May - 23 May
$1,572pp
STL
Lambert-St Louis
Multiple Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Multiple Airlines
2 STOPS
STL
Lambert-St Louis
21 May - 23 May
$1,578pp
STL
Lambert-St Louis
Multiple Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Multiple Airlines
2 STOPS
STL
Lambert-St Louis
St Louis to Sofia 2021 flight deals
Cheap flights to Sofia from St Louis found for this year
21 May - 23 May
$1,545pp
STL
Lambert-St Louis
Multiple Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Austrian Airlines
2 STOPS
STL
Lambert-St Louis
21 May - 23 May
$1,572pp
STL
Lambert-St Louis
Multiple Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Multiple Airlines
2 STOPS
STL
Lambert-St Louis
21 May - 23 May
$1,578pp
STL
Lambert-St Louis
Multiple Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Multiple Airlines
2 STOPS
STL
Lambert-St Louis
Related info for your journey
Useful info, stats and facts about <span class="emphasized">St Louis</span> to <span class="emphasized">Sofia</span> flights.
Alternative routes for St Louis to Sofia
See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Sofia
from $886 pp
Destination information for Sofia
Things to know before you go - useful duration and weather info for your trip from St Louis to Sofia.
Today's exchange rate
$1 = 1.63 Лв
Average temperature for April in Sofia
62.6 °F
Avg rainfall for April in Sofia
2.9 ″
Airports servicing Sofia
Top 3 airlines flying from St Louis to Sofia
The chart below displays the airlines Cheapflights users traveling from St Louis to Sofia choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
| Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
|---|---|---|---|---|---|---|
|
$888 | $1,169 | No cancel fee | 67% | ||
|
$664 | $1,278 | No cancel fee | 76% | ||
|
$677 | $1,300 | No cancel fee | 69% |