The flight distance from Ocean Reef Club Airport (OCA) in Key Largo, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 4,417 kilometers (2,745 miles / 2,385 nautical miles). The estimated flight time for this route is approximately 6h, flying northwest at a heading of 315°.

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 a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 3-hour time difference between the two cities.

Time zone information: When it's 20:13 in Key Largo, it's 17:13 in Seattle. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Seattle (SEA) to Key Largo (OCA) follows a heading of 109° (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 Ocean Reef Club Airport (OCA) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.