The flight distance from San Francisco International Airport (SFO) in San Francisco, United States to Shannon Airport (SNN) in Shannon, Ireland is 8,103 kilometers (5,035 miles / 4,375 nautical miles). The estimated flight time for this route is approximately 11h, flying northeast at a heading of 36°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting United States with Ireland. It is an intercontinental flight between North America and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 07:19 in San Francisco, it's 15:19 in Shannon. With a 8-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Shannon (SNN) to San Francisco (SFO) follows a heading of 311° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the San Francisco International Airport (SFO) and Shannon Airport (SNN) detail pages, or use our flight duration calculator to compare other routes.