Alan was the Syrian three-year-old whose photograph, lying dead on a Turkish beach, focused world attention on the refugee crisis in September.
Mufawaka Alabash and Asem Alfrhad were convicted of people smuggling, but acquitted of causing death "through deliberate negligence".
Thousands of refugees and migrants arrive daily in Greece from Turkey.
The story of Alan Kurdi's family
Why Alan Kurdi's picture cut through
Alabash and Alfrhad were tried in Bodrum, the same Turkish city where Alan's body was washed up.
The pair had faced up to 35 years in prison each. Both pleaded not guilty in February.
Alan's five-year-old brother Galib and his mother Rihan also drowned when the boat they were on sank during an attempted crossing to the Greek island of Kos.
The father, Abdullah, survived.  He now lives in Iraq.
In the latest efforts to tackle the migrant crisis, European Council President Donald Tusk is due to hold talks with Turkish President Recep Tayyip Erdogan on Friday.
Mr Tusk has raised the idea of "shipping back" migrants who arrive in the Greek islands from Turkey.
A note on terminology: The BBC uses the term migrant to refer to all people on the move who have yet to complete the legal process of claiming asylum. This group includes people fleeing war-torn countries such as Syria, who are likely to be granted refugee status, as well as people who are seeking jobs and better lives, who governments are likely to rule are economic migrants.

Tom Queally, 30, from Oak Lodge, Newmarket in Suffolk was found asleep in his car in Cheshire in March.
He admitted the charge and received the ban and a £1,350 fine at Crewe Magistrates' Court.
But his lawyer, Nick Freeman, argued he had been forced to plead guilty because the law did not recognise the sleep walking argument.
The prosecution said Queally, famous for being the regular jockey of "wonder horse" Frankel, was found asleep at the wheel of his BMW at a filling station in Chelford, Cheshire,with the engine running and the lights on at 05:40 GMT on 16 March.
A breath test showed a reading of 84 microgrammes of alcohol in 100ml of blood, when the legal limit is 35 microgrammes.
His defence argued that Queally, who is originally from Dungarvan in the Irish Republic, had been a sleep walker since he was five years old.
He had been out in Hale, Cheshire, and his last recollection was reading a magazine on a bed at his manager's house at 02:00 GMT.
Mr Freeman said: "The thrust of my mitigation is he's completely unaware of what he's doing - he's sleep driving.
"I don't think the law has kept up with scientific developments, because it seems simply unfair for a man of this quality now to have a criminal conviction for something which in my view, he's morally totally innocent."
District Judge Bridget Knight said the law had previously ruled that sleep walking was not a defence for drink driving.
Queally was also fined £1,350 and ordered to pay costs of £3,500.
Speaking afterwards, Mr Freeman said: "The law needs to be changed to reflect this unique set of circumstances."
A court in Turkey has sentenced two Syrians to four years in jail over the death of Alan Kurdi and four others.
[NEXT_CONCEPT]
A top jockey has been banned from driving for 22 months after claiming he was sleep walking while drink driving.