If you need help with EastarJet, a South Korean low-cost airline, here is the contact information you can use to contact their customer support: Customer support phone number: +82 1544 3288. Customer support email: care@eastarjet.com. Customer support hours: Every day of the week from 6:00 am to 11:00 pm . If you need assistance with reservations, flight directions, or any other matter, you can contact EastarJet’s support team during the given hours.