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PSM to LAI: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Lannion (Lannion-Côte de Granit Airport)
3,154 mi
5,077 km · 2,741 nm
6h 39m
estimated nonstop flight time
+6h
time difference · heading northeast
See live PSM→LAI fares Phone-only fares on this route — call free
Flight time details
3,154 miles nonstop takes roughly 6h 39m 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
- LAI — Lannion-Côte de Granit Airport · Lannion, France
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 LAI
- MXN · Morlaix-Ploujean Airport19 mi away
- SBK · Saint-Brieuc-Armor Airport32 mi away
- LDV · Landivisiau Air Base35 mi away
- BES · Brest Bretagne Airport48 mi away
Frequently asked questions
How far is PSM from LAI?
The flight distance from Portsmouth (PSM) to Lannion (LAI) is 3,154 miles (5,077 km, 2,741 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to LAI?
A nonstop flight takes about 6h 39m 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 Lannion?
Lannion is 6 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to LAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–LAI that never appear on search engines, with no booking fees.