# Distance from Chitose / Tomakomai (CTS) to Helena (HLN)

> 7,717 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,717 km / 4,795 mi / 4,167 nm
- **Estimated flight time**: 10h
- **Heading**: 45° (northeast)
- **Return heading**: 311° (northwest)
- **Classification**: Long-haul
- **Type**: International (Japan) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -15h (When it's 20:35 in Chitose / Tomakomai, it's 05:35 in Helena)
- **Elevation difference**: 3,795 ft (HLN is higher than CTS)

## Airports

### [New Chitose Airport (CTS)](https://www.flightduration.online/airport/cts-chitose-tomakomai-new-chitose-airport/1ef266df-8b65-6cba-bb84-06bb2780ed98)

- City: Chitose / Tomakomai, Japan
- ICAO: RJCC
- Timezone: Asia/Tokyo
- Coordinates: 42.780000, 141.690000
- Elevation: 82 ft

### [Helena Regional Airport (HLN)](https://www.flightduration.online/airport/hln-helena-helena-regional-airport/1ef266df-20d7-6808-b3f9-06bb2780ed98)

- City: Helena, United States
- ICAO: KHLN
- Timezone: America/Denver
- Coordinates: 46.610000, -111.980000
- Elevation: 3,877 ft

## Route notes

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.

Time-zone information: When it's 20:35 in Chitose / Tomakomai, it's 05:35 in Helena.
With a 15-hour time difference, expect significant jet lag.

## Related

- [New Chitose Airport (CTS)](https://www.flightduration.online/airport/cts-chitose-tomakomai-new-chitose-airport/1ef266df-8b65-6cba-bb84-06bb2780ed98)
- [Helena Regional Airport (HLN)](https://www.flightduration.online/airport/hln-helena-helena-regional-airport/1ef266df-20d7-6808-b3f9-06bb2780ed98)
- [Flight duration calculator](/#calculator)