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STL to SZR: distance & flight time
St. Louis (St Louis Lambert International Airport) → Stara Zagora (Stara Zagora Airport)
5,546 mi
8,925 km · 4,819 nm
11h 20m
estimated nonstop flight time
+8h
time difference · heading northeast
See live STL→SZR fares Phone-only fares on this route — call free
Flight time details
5,546 miles nonstop takes roughly 11h 20m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- SZR — Stara Zagora Airport · Stara Zagora, Bulgaria
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near SZR
- JAM · Bezmer Air Base36 mi away
- PDV · Plovdiv International Airport46 mi away
- GOZ · Gorna Oryahovitsa Airport54 mi away
- BOJ · Burgas Airport96 mi away
Frequently asked questions
How far is STL from SZR?
The flight distance from St. Louis (STL) to Stara Zagora (SZR) is 5,546 miles (8,925 km, 4,819 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to SZR?
A nonstop flight takes about 11h 20m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from STL to SZR?
Nonstop service on STL–SZR depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 11h 20m nonstop estimate.
What is the time difference between St. Louis and Stara Zagora?
Stara Zagora is 8 hours ahead of St. Louis.
What is the cheapest way to fly from STL to SZR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–SZR that never appear on search engines, with no booking fees.
Why are some STL to SZR fares phone-only?
Consolidator contracts let us sell certain STL–SZR tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.