There are two options:
23:30 from Plovdiv, arriving at Istanbul at 06:00.
One way ticket is 40 BGN, return - 70 BGN.
Company - http://www.union-ivkoni.com/home (the site has no English version but you can at least see the buses they use or try google translate)
01:00, 11:00, 14:00,19.00, 22:30 01:00
The travel time shall be similar as the above.
One way ticket is 40 BGN, return - 75 BGN.
Company: metrotourism.net/02/952-51-15/contact.html (No English version but use the e-mail and phones for confirmation and reservation)Edited: 5:53 am, July 17, 2011
Thank you very much, this is extremely helpful!
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