I was planning to visit a couple of countries in South East Asia, starting with Vietnam and then to Thailand. Applied for a Vietnam eVisa on Vietnam eVisa website, and after 5 days got my eVisa approved, it was a single entry eVisa with which I could stay for 30 days in Vietnam.

Booked a VietJet flight from New Delhi to Ho Chi Minh city. For the return journey, I booked a VietJet flight from Phuket to New Delhi which had a layover in Ho Chi Minh city.

VietJet is a budget airline of Vietnam and serves many destinations in South East Asia, which allows you to change the dates or destination if the plan changes.