The flight distance from Prefeito Doutor Joao Silva Filho Airport (PHB) in Parnaiba, Brazil to St Louis Lambert International Airport (STL) in St Louis, United States is 6,795 kilometers (4,222 miles / 3,669 nautical miles). The estimated flight time for this route is approximately 9h, flying northwest at a heading of 318°.

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 Brazil with United States. It is an intercontinental flight between South America and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 19:11 in Parnaiba, it's 16:11 in St Louis. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from St Louis (STL) to Parnaiba (PHB) follows a heading of 121° (east southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Prefeito Doutor Joao Silva Filho Airport (PHB) and St Louis Lambert International Airport (STL) detail pages, or use our flight duration calculator to compare other routes.