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YSD to STL: distance & flight time
Suffield (Suffield Heliport) → St. Louis (St Louis Lambert International Airport)
1,291 mi
2,077 km · 1,121 nm
3h 16m
estimated nonstop flight time
+1h
time difference · heading southeast
See live YSD→STL fares Phone-only fares on this route — call free
Flight time details
1,291 miles nonstop takes roughly 3h 16m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- YSD — Suffield Heliport · Suffield, 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 YSD
- YXH · Medicine Hat Airport27 mi away
- YQL · Lethbridge County Airport84 mi away
- YKY · Kindersley Airport123 mi away
- YCT · Coronation Airport125 mi away
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 YSD from STL?
The flight distance from Suffield (YSD) to St. Louis (STL) is 1,291 miles (2,077 km, 1,121 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSD to STL?
A nonstop flight takes about 3h 16m 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 Suffield and St. Louis?
St. Louis is 1 hour ahead of Suffield.
What is the cheapest way to fly from YSD to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSD–STL that never appear on search engines, with no booking fees.