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PAO to PSM: distance & flight time
Palo Alto (Palo Alto Airport of Santa Clara County) → Portsmouth (Portsmouth International at Pease Airport)
2,689 mi
4,328 km · 2,337 nm
5h 44m
estimated nonstop flight time
+3h
time difference · heading northeast
See live PAO→PSM fares Phone-only fares on this route — call free
Flight time details
2,689 miles nonstop takes roughly 5h 44m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- PAO — Palo Alto Airport of Santa Clara County · Palo Alto, 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 PAO
- SFO · San Francisco International Airport18 mi away
- NUQ · Moffett Federal Airfield5 mi away
- SQL · San Carlos Airport8 mi away
- SJC · Norman Y. Mineta San Jose International Airport12 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 PAO from PSM?
The flight distance from Palo Alto (PAO) to Portsmouth (PSM) is 2,689 miles (4,328 km, 2,337 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PAO to PSM?
A nonstop flight takes about 5h 44m 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 Palo Alto and Portsmouth?
Portsmouth is 3 hours ahead of Palo Alto.
What is the cheapest way to fly from PAO to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PAO–PSM that never appear on search engines, with no booking fees.