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STL to IFN: distance & flight time
St. Louis (St Louis Lambert International Airport) → Esfahan (Esfahan Shahid Beheshti International Airport)
6,934 mi
11,160 km · 6,026 nm
14h 4m
estimated nonstop flight time
+8.5h
time difference · heading northeast
See live STL→IFN fares Phone-only fares on this route — call free
Flight time details
6,934 miles nonstop takes roughly 14h 4m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8.5-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- IFN — Esfahan Shahid Beheshti International Airport · Esfahan, Iran
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 IFN
- IFH · Hesa Airport21 mi away
- CQD · Shahrekord Airport67 mi away
- KKS · Kashan Airport81 mi away
- YES · Yasouj Airport143 mi away
Frequently asked questions
How far is STL from IFN?
The flight distance from St. Louis (STL) to Esfahan (IFN) is 6,934 miles (11,160 km, 6,026 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to IFN?
A nonstop flight takes about 14h 4m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between St. Louis and Esfahan?
Esfahan is 8.5 hours ahead of St. Louis.
What is the cheapest way to fly from STL to IFN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–IFN that never appear on search engines, with no booking fees.