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PSM to SZT: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → San Cristobal de las Casas (San Cristobal de las Casas Airport)
2,225 mi
3,580 km · 1,933 nm
4h 50m
estimated nonstop flight time
-2h
time difference · heading southwest
See live PSM→SZT fares Phone-only fares on this route — call free
Flight time details
2,225 miles nonstop takes roughly 4h 50m gate to gate, flying southwest. 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
- SZT — San Cristobal de las Casas Airport · San Cristobal de las Casas, Mexico
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 SZT
Frequently asked questions
How far is PSM from SZT?
The flight distance from Portsmouth (PSM) to San Cristobal de las Casas (SZT) is 2,225 miles (3,580 km, 1,933 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to SZT?
A nonstop flight takes about 4h 50m 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 Cristobal de las Casas?
San Cristobal de las Casas is 2 hours behind Portsmouth.
What is the cheapest way to fly from PSM to SZT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–SZT that never appear on search engines, with no booking fees.