Need help booking?
Unpublished phone-only deals available
YSH to PSM: distance & flight time
Smiths Falls (Smiths Falls-Montague (Russ Beach) Airport) → Portsmouth (Portsmouth International at Pease Airport)
285 mi
459 km · 248 nm
1h 13m
estimated nonstop flight time
—
time difference · heading southeast
See live YSH→PSM fares Phone-only fares on this route — call free
Flight time details
285 miles nonstop takes roughly 1h 13m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- YSH — Smiths Falls-Montague (Russ Beach) Airport · Smiths Falls, Canada
- 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 YSH
- YOW · Ottawa Macdonald-Cartier International Airport29 mi away
- OGS · Ogdensburg International Airport30 mi away
- YRO · Ottawa / Rockcliffe Airport38 mi away
- YND · Ottawa / Gatineau Airport44 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 YSH from PSM?
The flight distance from Smiths Falls (YSH) to Portsmouth (PSM) is 285 miles (459 km, 248 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSH to PSM?
A nonstop flight takes about 1h 13m 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 cheapest way to fly from YSH to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSH–PSM that never appear on search engines, with no booking fees.