Cologne is in Germany. The IATA code (ID) for this city is CGN. The population of Cologne is approximately 963 000 persons.
Timezone of Cologne is +1 GMT. Dushanbe is 4 hours ahead. Please keep in mind that airplane tickets show the local departure time, so you will have to set your watch prior to your flight.
Prices for flights from Cologne depend on the season, destination, airline, and sales.