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PSM to LWT: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Lewistown (Lewistown Municipal Airport)
1,886 mi
3,035 km · 1,639 nm
4h 10m
estimated nonstop flight time
-2h
time difference · heading west
See live PSM→LWT fares Phone-only fares on this route — call free
Flight time details
1,886 miles nonstop takes roughly 4h 10m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- LWT — Lewistown Municipal Airport · Lewistown, 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 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 LWT
- GTF · Great Falls International Airport94 mi away
- BIL · Billings Logan International Airport96 mi away
- HVR · Havre City County Airport104 mi away
- LVM · Mission Field104 mi away
Frequently asked questions
How far is PSM from LWT?
The flight distance from Portsmouth (PSM) to Lewistown (LWT) is 1,886 miles (3,035 km, 1,639 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to LWT?
A nonstop flight takes about 4h 10m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from PSM to LWT?
Nonstop service on PSM–LWT depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 4h 10m nonstop estimate.
What is the time difference between Portsmouth and Lewistown?
Lewistown is 2 hours behind Portsmouth.
What is the cheapest way to fly from PSM to LWT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–LWT that never appear on search engines, with no booking fees.
Why are some PSM to LWT fares phone-only?
Consolidator contracts let us sell certain PSM–LWT tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.