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IKA to SUS: distance & flight time
Tehran (Imam Khomeini International Airport) → Null (Spirit of St Louis Airport)
6,767 mi
10,890 km · 5,880 nm
13h 44m
estimated nonstop flight time
-8.5h
time difference · heading northwest
See live IKA→SUS fares Phone-only fares on this route — call free
Flight time details
6,767 miles nonstop takes roughly 13h 44m 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
- IKA — Imam Khomeini International Airport · Tehran, Iran
- SUS — Spirit of St Louis Airport · Null, 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 IKA
- THR · Mehrabad International Airport21 mi away
- PYK · Payam International Airport31 mi away
- GZW · Qazvin Airport84 mi away
- NSH · Noshahr Airport88 mi away
Near SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is IKA from SUS?
The flight distance from Tehran (IKA) to Null (SUS) is 6,767 miles (10,890 km, 5,880 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IKA to SUS?
A nonstop flight takes about 13h 44m 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 Tehran and Null?
Null is 8.5 hours behind Tehran.
What is the cheapest way to fly from IKA to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IKA–SUS that never appear on search engines, with no booking fees.