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YST to PHN: distance & flight time
St. Theresa Point (St. Theresa Point Airport) → Port Huron (St Clair County International Airport)
941 mi
1,514 km · 818 nm
2h 31m
estimated nonstop flight time
+1h
time difference · heading southeast
See live YST→PHN fares Phone-only fares on this route — call free
Flight time details
941 miles nonstop takes roughly 2h 31m 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
- YST — St. Theresa Point Airport · St. Theresa Point, Canada
- PHN — St Clair County International Airport · Port Huron, 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 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
Near PHN
Frequently asked questions
How far is YST from PHN?
The flight distance from St. Theresa Point (YST) to Port Huron (PHN) is 941 miles (1,514 km, 818 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YST to PHN?
A nonstop flight takes about 2h 31m 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 St. Theresa Point and Port Huron?
Port Huron is 1 hour ahead of St. Theresa Point.
What is the cheapest way to fly from YST to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YST–PHN that never appear on search engines, with no booking fees.