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YSL to MSS: distance & flight time
St Leonard (St Leonard Airport) → Massena (Massena International Richards Field)
369 mi
595 km · 321 nm
1h 26m
estimated nonstop flight time
—
time difference · heading west
See live YSL→MSS fares Phone-only fares on this route — call free
Flight time details
369 miles nonstop takes roughly 1h 26m gate to gate, flying west. 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
- YSL — St Leonard Airport · St Leonard, Canada
- MSS — Massena International Richards Field · Massena, 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 YSL
- CAR · Caribou Municipal Airport22 mi away
- WFK · Northern Aroostook Regional Airport24 mi away
- PQI · Northern Maine Regional Airport at Presque Isle34 mi away
- HUL · Houlton International Airport71 mi away
Near MSS
- YCC · Cornwall Regional Airport18 mi away
- OGS · Ogdensburg International Airport35 mi away
- YOW · Ottawa Macdonald-Cartier International Airport48 mi away
- SLK · Adirondack Regional Airport49 mi away
Frequently asked questions
How far is YSL from MSS?
The flight distance from St Leonard (YSL) to Massena (MSS) is 369 miles (595 km, 321 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSL to MSS?
A nonstop flight takes about 1h 26m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from YSL to MSS?
Nonstop service on YSL–MSS depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 26m nonstop estimate.
What is the cheapest way to fly from YSL to MSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSL–MSS that never appear on search engines, with no booking fees.
Why are some YSL to MSS fares phone-only?
Consolidator contracts let us sell certain YSL–MSS tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.