Distance From March Air Reserve Base to Shannon Airport, RIV - SNN Distance

The distance from March Air Reserve Base (RIV) to Shannon Airport (SNN) is 5074 miles or 8165 kilometers or 4406 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 Riverside ( United States ) to Shannon ( Ireland )?

A one-way nonstop (direct) flight between Riverside and Shannon takes around 11 hours 39 minutes.

Estimated flight time from March Air Reserve Base, Riverside, United States to Shannon Airport, Shannon, Ireland is 11 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 • RIV - SNN

Kilometers		8165 km
Statute Miles		5074 miles
Nautical Miles		4406 nm
Avg. Time of Flight		11 hours 39 minutes

March Air Reserve Base to Shannon Airport Flight Route Map - RIV to SNN Flight Path

Location of March Air Reserve Base & Shannon Airport is given below.
Click the map to view Riverside to Shannon nonstop flight path and travel direction.

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

Nonstop flight route between Riverside, United States and Shannon, Ireland.

Time Difference Between the Airports • RIV - SNN

Time difference between Riverside (United States) and Shannon (Ireland) is 8 Hours.
Shannon time is 8 Hours ahead of Riverside.

Location	Local Time
Riverside (United States)	2025-12-15, 11:49:40 PST
Shannon (Ireland)	2025-12-15, 19:49:40 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

March Air Reserve Base (RIV / KRIV) Riverside, United States

Destination

Shannon Airport (SNN / EINN) Shannon, Ireland