Need help booking?
Unpublished phone-only deals available
PSM to THR: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Teheran (Mehrabad International Airport)
5,890 mi
9,479 km · 5,118 nm
12h 1m
estimated nonstop flight time
+7.5h
time difference · heading northeast
See live PSM→THR fares Phone-only fares on this route — call free
Flight time details
5,890 miles nonstop takes roughly 12h 1m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7.5-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 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 PSM from THR?
The flight distance from Portsmouth (PSM) to Teheran (THR) is 5,890 miles (9,479 km, 5,118 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to THR?
A nonstop flight takes about 12h 1m 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 Portsmouth and Teheran?
Teheran is 7.5 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to THR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–THR that never appear on search engines, with no booking fees.