Best way to travel between

Heraklion
Athens
Travel Modes
Price
Distance
Duration
CO2
drive
$38.0
343.74 km
10h 14mins
44.0 kgs
 
flight
$89.0
347.44 km
1h 38mins
37.52 kgs
 
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Tranport Distance Time(hrs) Cost(local) Cost(usd)
Drive 343.74 km 10h 14mins 28 EUR 38.0
Flight 347.44 km 1h 38mins 66 EUR 89.0
Take Ferry from Heraklion to Piraeus
Time: 9h 57mins Cost: 26 EUR; $ 31.5 - 38.5 USD CO2 Emission: 42.78 kgs
Take Train from Pireas to Οmonia
Time: 10mins Cost: 1 EUR; $ 1.8 - 2.2 USD CO2 Emission: 0.51 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Heraklion and Athens is to travel by car/taxi, which will cost about 28 EUR or 34.20 USD.