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ATY to PSM: distance & flight time
Watertown (Watertown Regional Airport) → Portsmouth (Portsmouth International at Pease Airport)
1,309 mi
2,107 km · 1,138 nm
3h 19m
estimated nonstop flight time
+1h
time difference · heading east
See live ATY→PSM fares Phone-only fares on this route — call free
Flight time details
1,309 miles nonstop takes roughly 3h 19m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- ATY — Watertown Regional Airport · Watertown, United States
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 ATY
- HON · Huron Regional Airport64 mi away
- ABR · Aberdeen Regional Airport72 mi away
- MHE · Mitchell Municipal Airport90 mi away
- FSD · Joe Foss Field Airport94 mi away
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
Frequently asked questions
How far is ATY from PSM?
The flight distance from Watertown (ATY) to Portsmouth (PSM) is 1,309 miles (2,107 km, 1,138 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ATY to PSM?
A nonstop flight takes about 3h 19m 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 Watertown and Portsmouth?
Portsmouth is 1 hour ahead of Watertown.
What is the cheapest way to fly from ATY to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ATY–PSM that never appear on search engines, with no booking fees.