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PSM to GRS: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Grosseto (Grosseto Air Base)
3,963 mi
6,379 km · 3,444 nm
8h 14m
estimated nonstop flight time
+6h
time difference · heading northeast
See live PSM→GRS fares Phone-only fares on this route — call free
Flight time details
3,963 miles nonstop takes roughly 8h 14m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- GRS — Grosseto Air Base · Grosseto, Italy
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 GRS
- SAY · Siena-Ampugnano Airport36 mi away
- EBA · Marina Di Campo Airport42 mi away
- FCO · Leonardo da Vinci–Fiumicino Airport89 mi away
- PSA · Pisa International Airport72 mi away
Frequently asked questions
How far is PSM from GRS?
The flight distance from Portsmouth (PSM) to Grosseto (GRS) is 3,963 miles (6,379 km, 3,444 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to GRS?
A nonstop flight takes about 8h 14m 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 Grosseto?
Grosseto is 6 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to GRS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–GRS that never appear on search engines, with no booking fees.