# Distance from Helena (HLN) to London (LHR)

> 7,306 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,306 km / 4,539 mi / 3,945 nm
- **Estimated flight time**: 10h
- **Heading**: 39° (northeast)
- **Return heading**: 315° (northwest)
- **Classification**: Long-haul
- **Type**: International (United States) → United Kingdom
- **Intercontinental**: North America → Europe
- **Time difference**: +7h (When it's 15:29 in Helena, it's 22:29 in London)
- **Elevation difference**: 3,794 ft (LHR is lower than HLN)

## Airports

### [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

### [London Heathrow Airport (LHR)](https://www.flightduration.online/airport/lhr-london-london-heathrow-airport/1ef266de-c45a-6b7a-a3bf-06bb2780ed98)

- City: London, United Kingdom
- ICAO: EGLL
- Timezone: Europe/London
- Coordinates: 51.470000, -0.460000
- Elevation: 83 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 15:29 in Helena, it's 22:29 in London.
With a 7-hour time difference, expect significant jet lag.

## Related

- [Helena Regional Airport (HLN)](https://www.flightduration.online/airport/hln-helena-helena-regional-airport/1ef266df-20d7-6808-b3f9-06bb2780ed98)
- [London Heathrow Airport (LHR)](https://www.flightduration.online/airport/lhr-london-london-heathrow-airport/1ef266de-c45a-6b7a-a3bf-06bb2780ed98)
- [Flight duration calculator](/#calculator)