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YAM to STL: distance & flight time
Sault Sainte Marie (Sault Ste Marie Airport) → St. Louis (St Louis Lambert International Airport)
612 mi
984 km · 531 nm
1h 48m
estimated nonstop flight time
-1h
time difference · heading southwest
See live YAM→STL fares Phone-only fares on this route — call free
Flight time details
612 miles nonstop takes roughly 1h 48m gate to gate, flying southwest. 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
- YAM — Sault Ste Marie Airport · Sault Sainte Marie, Canada
- STL — St Louis Lambert International Airport · St. Louis, 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 YAM
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is YAM from STL?
The flight distance from Sault Sainte Marie (YAM) to St. Louis (STL) is 612 miles (984 km, 531 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YAM to STL?
A nonstop flight takes about 1h 48m 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 YAM to STL?
Nonstop service on YAM–STL 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 48m nonstop estimate.
What is the time difference between Sault Sainte Marie and St. Louis?
St. Louis is 1 hour behind Sault Sainte Marie.
What is the cheapest way to fly from YAM to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YAM–STL that never appear on search engines, with no booking fees.
Why are some YAM to STL fares phone-only?
Consolidator contracts let us sell certain YAM–STL 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.