Fare rule | ANA International flight

From USA and Mexico(Fare rule)

First, Business, Premium Economy, Economy (Light/Basic)

Reservations/ Ticket Purchases	[When making reservations and purchase through the WEB/Online Booking] 1) Reservations and purchases must be completed in ANA SKY WEB. 2) Reservation for all segments must be confirmed before payment and ticketing.
Reservation Changes	Changes are not permitted.
Refunds	Tickets are non-refundable.
Miscellaneous	Fare can be combined on a half round trip basis with other ANA fares and most restrictive rule will apply to the entire ticket. Other restrictions may apply. Fares and conditions subject to change without prior notice.