Need help booking?
Unpublished phone-only deals available
GYY to THR: distance & flight time
Gary (Gary Chicago International Airport) → Teheran (Mehrabad International Airport)
6,491 mi
10,447 km · 5,641 nm
13h 12m
estimated nonstop flight time
+8.5h
time difference · heading northeast
See live GYY→THR fares Phone-only fares on this route — call free
Flight time details
6,491 miles nonstop takes roughly 13h 12m 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
- GYY — Gary Chicago International Airport · Gary, United States
- THR — Mehrabad International Airport · Teheran, 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 GYY
- ORD · Chicago O'Hare International Airport36 mi away
- CGX · Chicago Meigs Airport20 mi away
- MDW · Chicago Midway International Airport21 mi away
- VPZ · Porter County Municipal Airport24 mi away
Near THR
- IKA · Imam Khomeini International Airport21 mi away
- PYK · Payam International Airport28 mi away
- NSH · Noshahr Airport68 mi away
- GZW · Qazvin Airport80 mi away
Frequently asked questions
How far is GYY from THR?
The flight distance from Gary (GYY) to Teheran (THR) is 6,491 miles (10,447 km, 5,641 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GYY to THR?
A nonstop flight takes about 13h 12m 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 Gary and Teheran?
Teheran is 8.5 hours ahead of Gary.
What is the cheapest way to fly from GYY to THR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GYY–THR that never appear on search engines, with no booking fees.