What if I miss my flight?
If you expect that you will miss your flight, it is highly recommended that you reach out to the airline directly to notify them. If you don't show up at the airport or check in online by the airline's requested time, the airline will consider this a cancellation or no show and you are not likely to get any money refunded.
If you need to cancel a flight, always cancel your reservation as soon as possible and no later than 24 hours before departure.
If you miss one flight/segment on your ticket, the entire reservation will be cancelled and you will not be able to travel on any remaining segment such as the home bound flight. This is why it is highly recommended that you contact the airline directly to learn about your flight options if you miss one of the flights in your booking.