# Distance from Cascais Airport (CAT) to Washington (IAD)

> 5,756 km · estimated flight time 8h · Long-haul route.

## Summary

- **Distance**: 5,756 km / 3,576 mi / 3,108 nm
- **Estimated flight time**: 8h
- **Heading**: 293° (west northwest)
- **Return heading**: 67° (east northeast)
- **Classification**: Long-haul
- **Type**: International (Portugal) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -5h (When it's 05:30 in Cascais Airport, it's 00:30 in Washington)
- **Elevation difference**: 13 ft (IAD is lower than CAT)

## Airports

### [Cascais Airport (CAT)](https://www.flightduration.online/airport/cat-cascais-airport/1ef266df-5574-614c-8750-06bb2780ed98)

- City: Cascais Airport, Portugal
- ICAO: LPCS
- Timezone: Europe/Lisbon
- Coordinates: 38.730000, -9.360000
- Elevation: 325 ft

### [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)

- City: Washington, United States
- ICAO: KIAD
- Timezone: America/New_York
- Coordinates: 38.900000, -77.500000
- Elevation: 312 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 05:30 in Cascais Airport, it's 00:30 in Washington.
The 5-hour time difference may cause some jet lag.

## Related

- [Cascais Airport (CAT)](https://www.flightduration.online/airport/cat-cascais-airport/1ef266df-5574-614c-8750-06bb2780ed98)
- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [Flight duration calculator](/#calculator)