# Distance from Seattle (SEA) to Saint John (YSJ)

> 4,238 km · estimated flight time 6h · Long-haul route.

## Summary

- **Distance**: 4,238 km / 2,633 mi / 2,288 nm
- **Estimated flight time**: 6h
- **Heading**: 72° (east northeast)
- **Return heading**: 294° (west northwest)
- **Classification**: Long-haul
- **Type**: International (United States) → Canada
- **Time difference**: +4h (When it's 17:20 in Seattle, it's 21:20 in Saint John)
- **Elevation difference**: 75 ft (YSJ is lower than SEA)

## Airports

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 ft

### [Saint John Airport (YSJ)](https://www.flightduration.online/airport/ysj-saint-john-saint-john-airport/1ef266de-b2a1-6da2-8bf1-06bb2780ed98)

- City: Saint John, Canada
- ICAO: CYSJ
- Timezone: America/Halifax
- Coordinates: 45.320000, -65.890000
- Elevation: 357 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 17:20 in Seattle, it's 21:20 in Saint John.
The 4-hour time difference may cause some jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Saint John Airport (YSJ)](https://www.flightduration.online/airport/ysj-saint-john-saint-john-airport/1ef266de-b2a1-6da2-8bf1-06bb2780ed98)
- [Flight duration calculator](/#calculator)