Need help booking?
Unpublished phone-only deals available
SXI to STL: distance & flight time
Siri Island (Sirri Island Airport) → St. Louis (St Louis Lambert International Airport)
7,427 mi
11,952 km · 6,454 nm
15h 2m
estimated nonstop flight time
-8.5h
time difference · heading northwest
See live SXI→STL fares Phone-only fares on this route — call free
Flight time details
7,427 miles nonstop takes roughly 15h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8.5-hour time set-back when reading arrival times on your ticket.
The two airports
- SXI — Sirri Island Airport · Siri Island, Iran
- STL — St Louis Lambert International Airport · St. Louis, United States
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 SXI
- DXB · Dubai International Airport69 mi away
- AEU · Abu Musa Island Airport31 mi away
- BDH · Bandar Lengeh Airport47 mi away
- KIH · Kish International Airport55 mi away
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
Frequently asked questions
How far is SXI from STL?
The flight distance from Siri Island (SXI) to St. Louis (STL) is 7,427 miles (11,952 km, 6,454 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SXI to STL?
A nonstop flight takes about 15h 2m 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 Siri Island and St. Louis?
St. Louis is 8.5 hours behind Siri Island.
What is the cheapest way to fly from SXI to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SXI–STL that never appear on search engines, with no booking fees.