Distance From St Clair County International Airport to Shannon Airport, PHN - SNN Distance

The distance from St Clair County International Airport (PHN) to Shannon Airport (SNN) is 3329 miles or 5357 kilometers or 2891 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Port Huron ( United States ) to Shannon ( Ireland )?

A one-way nonstop (direct) flight between Port Huron and Shannon takes around 7 hours 39 minutes.

Estimated flight time from St Clair County International Airport, Port Huron, United States to Shannon Airport, Shannon, Ireland is 7 hours 39 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • PHN - SNN

Kilometers		5357 km
Statute Miles		3329 miles
Nautical Miles		2891 nm
Avg. Time of Flight		7 hours 39 minutes

St Clair County International Airport to Shannon Airport Flight Route Map - PHN to SNN Flight Path

Location of St Clair County International Airport & Shannon Airport is given below.
Click the map to view Port Huron to Shannon nonstop flight path and travel direction.

Click to see flight route on Google Map between Port Huron, United States and Shannon, Ireland. .

Nonstop flight route between Port Huron, United States and Shannon, Ireland.

Time Difference Between the Airports • PHN - SNN

Time difference between Port Huron (United States) and Shannon (Ireland) is 5 Hours.
Shannon time is 5 Hours ahead of Port Huron.

Location	Local Time
Port Huron (United States)	2025-12-16, 18:31:20 EST
Shannon (Ireland)	2025-12-16, 23:31:20 GMT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

St Clair County International Airport (PHN / KPHN) Port Huron, United States

Destination

Shannon Airport (SNN / EINN) Shannon, Ireland