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THR to FNL: distance & flight time
Teheran (Mehrabad International Airport) → Fort Collins (Northern Colorado Regional Airport)
6,965 mi
11,209 km · 6,053 nm
14h 7m
estimated nonstop flight time
-9.5h
time difference · heading north
See live THR→FNL fares Phone-only fares on this route — call free
Flight time details
6,965 miles nonstop takes roughly 14h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time set-back when reading arrival times on your ticket.
The two airports
- THR — Mehrabad International Airport · Teheran, Iran
- FNL — Northern Colorado Regional Airport · Fort Collins, 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 THR
- IKA · Imam Khomeini International Airport21 mi away
- PYK · Payam International Airport28 mi away
- NSH · Noshahr Airport68 mi away
- GZW · Qazvin Airport80 mi away
Near FNL
- DEN · Denver International Airport45 mi away
- GXY · Greeley–Weld County Airport20 mi away
- WBU · Boulder Municipal Airport31 mi away
- BJC · Rocky Mountain Metropolitan Airport38 mi away
Frequently asked questions
How far is THR from FNL?
The flight distance from Teheran (THR) to Fort Collins (FNL) is 6,965 miles (11,209 km, 6,053 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THR to FNL?
A nonstop flight takes about 14h 7m 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 Teheran and Fort Collins?
Fort Collins is 9.5 hours behind Teheran.
What is the cheapest way to fly from THR to FNL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THR–FNL that never appear on search engines, with no booking fees.