FLIGHT HOP.fyi

✈ SEA → CPT

SEATTLE → CAPE TOWN: 20H 20M. BUSINESS CLASS OR THERAPY. PICK ONE.

Flight time
20h 20m
Distance
10,217 mi
Or
16,443 km
Jet lag
9h

Flight from Seattle to Cape Town

From Sea-Tac (SEA), USA North America  →  Cape Town International (CPT), South Africa Africa

↔ Flying the other way? Cape Town → Seattle

How long is the flight from Seattle to Cape Town?

A nonstop flight from Seattle (SEA) to Cape Town (CPT) takes about 20 hours 20 minutes, covering a great-circle distance of 10,217 miles (16,443 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.

Avg flight time

20h 20m

Nonstop, scheduled

Distance

10,217 mi

16,443 km · great-circle

Avg speed

809 km/h

Door-to-door including taxi

Time zones & jet lag

Seattle timezone

UTC-7

America/Los_Angeles

Cape Town timezone

UTC+2

Africa/Johannesburg

Time difference

+9h

9 hours ahead

Jet lag (rough)

~9d

Eastward — worse

CO₂ footprint per passenger

Economy class, single passenger. Source: DEFRA 2024 averages.

✈ Flight 2434 kg CO₂
🚗 Car (alone) 2812 kg CO₂
🚆 Train 674 kg CO₂

This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.

Flights from Seattle

Nearest destinations

Long-haul from Seattle

More flights to Africa

Flights to Cape Town

Nearest origins

Long-haul to Cape Town

More flights from North America