The flight distance from Eleftherios Venizelos International Airport (ATH) in Athens, Greece to Union Island International Airport (UNI) in Union Island, Saint Vincent is 8,747 kilometers (5,435 miles / 4,723 nautical miles). The estimated flight time for this route is approximately 11h, flying west at a heading of 277°.

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 Greece with Saint Vincent. It is an intercontinental flight between Europe and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 11:45 in Athens, it's 05:45 in Union Island. With a 6-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 Union Island (UNI) to Athens (ATH) follows a heading of 53° (northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Eleftherios Venizelos International Airport (ATH) and Union Island International Airport (UNI) detail pages, or use our flight duration calculator to compare other routes.