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PHN to STL: distance & flight time
Port Huron (St Clair County International Airport) → St. Louis (St Louis Lambert International Airport)
500 mi
805 km · 435 nm
1h 33m
estimated nonstop flight time
-1h
time difference · heading southwest
See live PHN→STL fares Phone-only fares on this route — call free
Flight time details
500 miles nonstop takes roughly 1h 33m 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
- PHN — St Clair County International Airport · Port Huron, United States
- 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 PHN
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 PHN from STL?
The flight distance from Port Huron (PHN) to St. Louis (STL) is 500 miles (805 km, 435 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to STL?
A nonstop flight takes about 1h 33m 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 Port Huron and St. Louis?
St. Louis is 1 hour behind Port Huron.
What is the cheapest way to fly from PHN to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–STL that never appear on search engines, with no booking fees.