The flight distance from Phoenix Sky Harbor International Airport (PHX) in Phoenix, United States to Union Island International Airport (UNI) in Union Island, Saint Vincent is 5,607 kilometers (3,484 miles / 3,027 nautical miles). The estimated flight time for this route is approximately 8h, flying east southeast at a heading of 102°.

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 Saint Vincent. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 12:28 in Phoenix, it's 15:28 in Union Island. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,119 feet between the two airports. Union Island International Airport sits lower than Phoenix Sky Harbor International Airport.

The return flight from Union Island (UNI) to Phoenix (PHX) follows a heading of 303° (west 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 Phoenix Sky Harbor International Airport (PHX) and Union Island International Airport (UNI) detail pages, or use our flight duration calculator to compare other routes.