Citizens of the Republic of Serbia may only enter Syria from Lebanon, through the Masnaa land border crossing.
Entry of a foreigner requires a certificate of two vaccine shots of Covid-19, and after 15 days of taking the second vaccine, the vaccine certificate is valid up to one year to be able to enter Syria, or a negative PCR-test result produced in a state laboratory in Beirut or from the country they’re travelling from, but no longer than 96 hours earlier.
Citizens of the Republic of Serbia may not transit through Syria.