# Distance from Ascension Island (ASI) to Ottawa (YOW)

> 8,489 km · estimated flight time 11h · Long-haul route.

## Summary

- **Distance**: 8,489 km / 5,275 mi / 4,584 nm
- **Estimated flight time**: 11h
- **Heading**: 321° (northwest)
- **Return heading**: 117° (east southeast)
- **Classification**: Long-haul
- **Type**: International (SH) → Canada
- **Time difference**: -4h (When it's 08:21 in Ascension Island, it's 04:21 in Ottawa)
- **Elevation difference**: 96 ft (YOW is higher 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

### [Ottawa / Macdonald-Cartier International Airport (YOW)](https://www.flightduration.online/airport/yow-ottawa-ottawa-macdonald-cartier-international-airport/1ef266de-b189-6992-9daf-06bb2780ed98)

- City: Ottawa, Canada
- ICAO: CYOW
- Timezone: America/Toronto
- Coordinates: 45.320000, -75.670000
- Elevation: 374 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 08:21 in Ascension Island, it's 04:21 in Ottawa.
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)
- [Ottawa / Macdonald-Cartier International Airport (YOW)](https://www.flightduration.online/airport/yow-ottawa-ottawa-macdonald-cartier-international-airport/1ef266de-b189-6992-9daf-06bb2780ed98)
- [Flight duration calculator](/#calculator)