Direct (nonstop) flights from Kos to Athens
2 airlines fly nonstop from Kos International Airport (KGS) to Athens International Airport (ATH). It's 190 miles (305 km), about 1h in the air. Operated by Aegean Airlines, Sky Express.
Aegean Airlines
Sky Express
Route data last updated: May 27, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Kos to Athens with one stop · direct emits 35 kg CO₂ per passenger
Looking for the return flight?
ATH → KGS: Flights from Athens to KosOther direct flights from Kos
Direct flights from Athens (ATH)
Frequently Asked Questions
How long is the direct flight from Kos to Athens?
A nonstop flight from Kos (KGS) to Athens (ATH) takes approximately 1 hours. The distance is 190 miles (305 km).
Which airlines fly nonstop from Kos to Athens?
2 airlines: Aegean Airlines, Sky Express.
Is there a nonstop flight from Kos to Athens?
Yes. 2 airlines: Aegean Airlines, Sky Express.
How far is Kos from Athens?
The flight distance from Kos to Athens is 190 miles (305 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Washington DC.
What type of aircraft flies from Kos to Athens?
At 1h, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Kos to Athens?
Roughly 35 kg CO2 per passenger one-way. That's about the same as driving 175 km.
Is the return flight from Athens to Kos also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Kos to Athens?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Kos International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.