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PSM to YST: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → St. Theresa Point (St. Theresa Point Airport)
1,318 mi
2,122 km · 1,146 nm
3h 20m
estimated nonstop flight time
-1h
time difference · heading northwest
See live PSM→YST fares Phone-only fares on this route — call free
Flight time details
1,318 miles nonstop takes roughly 3h 20m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- YST — St. Theresa Point Airport · St. Theresa Point, Canada
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 YST
- YIV · Island Lake Airport8 mi away
- YGO · Gods Lake Narrows Airport51 mi away
- YRS · Red Sucker Lake Airport57 mi away
- ZGI · Gods River Airport75 mi away
Frequently asked questions
How far is PSM from YST?
The flight distance from Portsmouth (PSM) to St. Theresa Point (YST) is 1,318 miles (2,122 km, 1,146 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to YST?
A nonstop flight takes about 3h 20m 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 St. Theresa Point?
St. Theresa Point is 1 hour behind Portsmouth.
What is the cheapest way to fly from PSM to YST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–YST that never appear on search engines, with no booking fees.