Distance From Shannon Airport to San Francisco International Airport, SNN - SFO Distance

The distance from Shannon Airport (SNN) to San Francisco International Airport (SFO) is 5035 miles or 8103 kilometers or 4372 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 Shannon ( Ireland ) to San Francisco ( United States )?

A one-way nonstop (direct) flight between Shannon and San Francisco takes around 11 hours 34 minutes.

Estimated flight time from Shannon Airport, Shannon, Ireland to San Francisco International Airport, San Francisco, United States is 11 hours 34 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 • SNN - SFO

Kilometers		8103 km
Statute Miles		5035 miles
Nautical Miles		4372 nm
Avg. Time of Flight		11 hours 34 minutes

Shannon Airport to San Francisco International Airport Flight Route Map - SNN to SFO Flight Path

Location of Shannon Airport & San Francisco International Airport is given below.
Click the map to view Shannon to San Francisco nonstop flight path and travel direction.

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

Nonstop flight route between Shannon, Ireland and San Francisco, United States.

Time Difference Between the Airports • SNN - SFO

Time difference between Shannon (Ireland) and San Francisco (United States) is 8 Hours.
San Francisco time is 8 Hours behind Shannon.

Location	Local Time
Shannon (Ireland)	2025-12-13, 12:38:15 GMT
San Francisco (United States)	2025-12-13, 04:38:15 PST

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

Shannon Airport (SNN / EINN) Shannon, Ireland

Destination

San Francisco International Airport (SFO / KSFO) San Francisco, United States