# Distance from Kolkata (CCU) to Okmulgee (OKM)

> 13,511 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,511 km / 8,395 mi / 7,295 nm
- **Estimated flight time**: 17h
- **Heading**: 4° (north)
- **Return heading**: 355° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (India) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -10.5h (When it's 00:01 in Kolkata, it's 13:31 in Okmulgee)
- **Elevation difference**: 704 ft (OKM is higher than CCU)

## Airports

### [Netaji Subhash Chandra Bose International Airport (CCU)](https://www.flightduration.online/airport/ccu-kolkata-netaji-subhash-chandra-bose-international-airport/1ef266df-f023-6fe4-a8d5-06bb2780ed98)

- City: Kolkata, India
- ICAO: VECC
- Timezone: Asia/Kolkata
- Coordinates: 22.650000, 88.450000
- Elevation: 16 ft

### [Okmulgee Regional/Paul And Betty Abbott Field (OKM)](https://www.flightduration.online/airport/okm-okmulgee-okmulgee-regionalpaul-and-betty-abbott-field/1ef266df-307b-6ee4-bf2a-06bb2780ed98)

- City: Okmulgee, United States
- ICAO: KOKM
- Timezone: America/Chicago
- Coordinates: 35.700000, -95.900000
- Elevation: 720 ft

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 00:01 in Kolkata, it's 13:31 in Okmulgee.
With a 10.5-hour time difference, expect significant jet lag.

## Related

- [Netaji Subhash Chandra Bose International Airport (CCU)](https://www.flightduration.online/airport/ccu-kolkata-netaji-subhash-chandra-bose-international-airport/1ef266df-f023-6fe4-a8d5-06bb2780ed98)
- [Okmulgee Regional/Paul And Betty Abbott Field (OKM)](https://www.flightduration.online/airport/okm-okmulgee-okmulgee-regionalpaul-and-betty-abbott-field/1ef266df-307b-6ee4-bf2a-06bb2780ed98)
- [Flight duration calculator](/#calculator)