Airport Comparison
Honolulu (HNL) to St Mary'S (KSM) Flight Distance
The flight distance from Daniel K Inouye International Airport (HNL) in Honolulu, United States to St Mary's Airport (KSM) in St Mary'S, United States is 4,549 kilometers (2,827 miles / 2,456 nautical miles). The estimated flight time for this route is approximately 6h, flying north at a heading of 356°.
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 1-hour time difference between the two cities.
Time zone information: When it's 10:39 in Honolulu, it's 11:39 in St Mary'S.
The return flight from St Mary'S (KSM) to Honolulu (HNL) follows a heading of 172° (south). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.
For more information about these airports, visit the Daniel K Inouye International Airport (HNL) and St Mary's Airport (KSM) detail pages, or use our flight duration calculator to compare other routes.