According to the Royal Mail a standard letter shouldn't take more than 10 days to arrive, but that doesn't take into account the postal service on the other side. Turkish postal service is a lot slower than that in the UK so although your letter may arrive in the country within 10 days it could take an additional 7-14 days before it arrives at the location (depending on how remote the address is.)
However, the Turkish postal service is infamously unreliable and a large proportion of airmail will never make it to the recipient. This is more common with boxed packages than with letters.
It takes an airmail package between 1 and 3 weeks, on average, to reach Turkey. The actual time varies based on the type of service used and the origin.
2 weeks
IT take 6-12 day to take an airmail letter from New York to get to Prague Czech Republic but it take less to you send it to Calfonia
About 4-7 days by airmail.
2 weeks Normally just a few days by airmail.
Too Long ..anywhere from 8-10 days sometimes 15 days !
How long does it take for a letter to come to Mass, USA from Turkey?
A first-class airmail letter should take about one week, except during heavy seasonal traffic.
6 days
3-5 days to western europe i know from experience
Airmail takes a few days, surface mail may take over a month. Your choice.
Just a week on average, it goes airmail. It can take as long as 2 weeks.