The country's aviation authority said it had dropped a list of countries from which arrivals were banned.
The services cut off due to late bill payments during the summer, will also be restored.
US, Israel say Iranian drone attacked the Liberian-flagged ship
The restrictions aim to curb spread of the virus.
United Kingdom, Tunisia, India, Iran and Pakistan remain on list of banned countries.
Discussions during the two-day visit to focus on Yemen war and economic and investment cooperation
Only Omanis over the age of 15 can undertake such work, according to the Sultanate's Ministry of Labour.
Arafat Day will be marked on July 19.