# Distance from Seattle (SEA) to Union (USC)

> 3,642 km · estimated flight time 5h · Medium-haul route.

## Summary

- **Distance**: 3,642 km / 2,263 mi / 1,967 nm
- **Estimated flight time**: 5h
- **Heading**: 98° (east)
- **Return heading**: 305° (northwest)
- **Classification**: Medium-haul
- **Type**: Domestic (United States)
- **Time difference**: +3h (When it's 19:43 in Seattle, it's 22:43 in Union)
- **Elevation difference**: 178 ft (USC is higher 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

### [Union County, Troy Shelton Field (USC)](https://www.flightduration.online/airport/usc-union-union-county-troy-shelton-field/1ef266de-fd5e-6642-bb09-06bb2780ed98)

- City: Union, United States
- ICAO: K35A
- Timezone: America/New_York
- Coordinates: 34.690000, -81.640000
- Elevation: 610 ft

## Route notes

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

Time-zone information: When it's 19:43 in Seattle, it's 22:43 in Union.
The 3-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)
- [Union County, Troy Shelton Field (USC)](https://www.flightduration.online/airport/usc-union-union-county-troy-shelton-field/1ef266de-fd5e-6642-bb09-06bb2780ed98)
- [Flight duration calculator](/#calculator)