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PSM to SAN: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → San Diego (San Diego International Airport)
2,591 mi
4,170 km · 2,252 nm
5h 33m
estimated nonstop flight time
-3h
time difference · heading west
See live PSM→SAN fares Phone-only fares on this route — call free
Flight time details
2,591 miles nonstop takes roughly 5h 33m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- SAN — San Diego International Airport · San Diego, 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 SAN
Frequently asked questions
How far is PSM from SAN?
The flight distance from Portsmouth (PSM) to San Diego (SAN) is 2,591 miles (4,170 km, 2,252 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to SAN?
A nonstop flight takes about 5h 33m 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 San Diego?
San Diego is 3 hours behind Portsmouth.
What is the cheapest way to fly from PSM to SAN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–SAN that never appear on search engines, with no booking fees.