While purchasing the first ticket, you can mark the Return button, or after purchasing one-way, you can re-enter the system and purchase the return tickets by examining the reverse route sign with the reverse route sign.
When you search for flights between İstanbul and Cotonou, all active companies and flight times on the date you entered are listed. You can find the cheapest flight tickets by sorting this list by price.
The most frequently used airline companies from İstanbul to Cotonou are generally
Türk Hava Yolları,
Royal Air Maroc,
Air France,
Rwandair Express,
KLM Royal Dutch Airlines,
Singapore Airlines,
Ethiopian Airlines,
Kuwait Airways
are companies.