# Distance from Ascension Island (ASI) to Boston (BOS)

> 8,005 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 8,005 km / 4,974 mi / 4,322 nm
- **Estimated flight time**: 10h
- **Heading**: 320° (northwest)
- **Return heading**: 120° (east southeast)
- **Classification**: Long-haul
- **Type**: International (SH) → United States
- **Time difference**: -4h (When it's 21:29 in Ascension Island, it's 17:29 in Boston)
- **Elevation difference**: 259 ft (BOS is lower than ASI)

## Airports

### [RAF Ascension Island (ASI)](https://www.flightduration.online/airport/asi-ascension-island-raf-ascension-island/1ef266de-d88a-637a-8b82-06bb2780ed98)

- City: Ascension Island, SH
- ICAO: FHAW
- Timezone: Atlantic/St_Helena
- Coordinates: -7.970000, -14.390000
- Elevation: 278 ft

### [General Edward Lawrence Logan International Airport (BOS)](https://www.flightduration.online/airport/bos-boston-general-edward-lawrence-logan-international-airport/1ef266df-112a-6798-90da-06bb2780ed98)

- City: Boston, United States
- ICAO: KBOS
- Timezone: America/New_York
- Coordinates: 42.360000, -71.010000
- Elevation: 19 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 21:29 in Ascension Island, it's 17:29 in Boston.
The 4-hour time difference may cause some jet lag.

## Related

- [RAF Ascension Island (ASI)](https://www.flightduration.online/airport/asi-ascension-island-raf-ascension-island/1ef266de-d88a-637a-8b82-06bb2780ed98)
- [General Edward Lawrence Logan International Airport (BOS)](https://www.flightduration.online/airport/bos-boston-general-edward-lawrence-logan-international-airport/1ef266df-112a-6798-90da-06bb2780ed98)
- [Flight duration calculator](/#calculator)