Air services to and from Oman resumed early on Saturday, four days after they were cancelled following a cyclone that hit the sultanate killing 25 people including an Indian.
Oman Air flights touched down at Thiruvananthapuram and Kochi from Oman. Around 1,500 passengers fly daily from Kerala to Oman.
Cyclone Gonu slammed into Oman on Wednesday, resulting in the death of at least 25 people.
Oman Air cancelled its flights from Tuesday after the cyclone alert was sounded, as did other international carriers.
Passengers headed for Oman appeared relieved.
"It will take at least a week before Oman returns to normalcy. Water, electricity and telephone lines are not fully operational yet," said a passenger who arrived from Oman.
"Drinking water is still a problem because the water treatment plants there are not fully operational," said another passenger.