The flight distance from Indira Gandhi International Airport (DEL) in New Delhi, India to St Mary's Airport (KSM) in St Mary'S, United States is 8,599 kilometers (5,343 miles / 4,643 nautical miles). The estimated flight time for this route is approximately 11h, flying north northeast at a heading of 25°.

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

Time zone information: When it's 18:28 in New Delhi, it's 03:58 in St Mary'S. With a 14.5-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 St Mary'S (KSM) to New Delhi (DEL) follows a heading of 308° (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 Indira Gandhi International Airport (DEL) and St Mary's Airport (KSM) detail pages, or use our flight duration calculator to compare other routes.