Need help booking?
Unpublished phone-only deals available
PHN to STP: distance & flight time
Port Huron (St Clair County International Airport) → St. Paul (St Paul Downtown Holman Field)
542 mi
872 km · 471 nm
1h 39m
estimated nonstop flight time
-1h
time difference · heading west
See live PHN→STP fares Phone-only fares on this route — call free
Flight time details
542 miles nonstop takes roughly 1h 39m gate to gate, flying west. 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
- STP — St Paul Downtown Holman Field · St. Paul, 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 STP
Frequently asked questions
How far is PHN from STP?
The flight distance from Port Huron (PHN) to St. Paul (STP) is 542 miles (872 km, 471 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to STP?
A nonstop flight takes about 1h 39m 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 PHN to STP?
Nonstop service on PHN–STP 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 39m nonstop estimate.
What is the time difference between Port Huron and St. Paul?
St. Paul is 1 hour behind Port Huron.
What is the cheapest way to fly from PHN to STP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–STP that never appear on search engines, with no booking fees.
Why are some PHN to STP fares phone-only?
Consolidator contracts let us sell certain PHN–STP 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.