# Distance from Osijek (OSI) to Seattle (SEA)

> 9,011 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,011 km / 5,599 mi / 4,865 nm
- **Estimated flight time**: 12h
- **Heading**: 335° (north northwest)
- **Return heading**: 26° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Croatia) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -9h (When it's 21:58 in Osijek, it's 12:58 in Seattle)
- **Elevation difference**: 142 ft (SEA is higher than OSI)

## Airports

### [Osijek Airport (OSI)](https://www.flightduration.online/airport/osi-osijek-osijek-airport/1ef266df-43b2-683c-9eec-06bb2780ed98)

- City: Osijek, Croatia
- ICAO: LDOS
- Timezone: Europe/Zagreb
- Coordinates: 45.460000, 18.810000
- Elevation: 290 ft

### [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

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 21:58 in Osijek, it's 12:58 in Seattle.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Osijek Airport (OSI)](https://www.flightduration.online/airport/osi-osijek-osijek-airport/1ef266df-43b2-683c-9eec-06bb2780ed98)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)