My family and I are New Zealand (NZ) citizens and legal residents of Mexico. We are currently in NZ, and are due to return to Mexico via a one-way flight to the US (LAX) and driving to Mexico. We have B1/B2 visas for the US.
When we first moved to Mexico we travelled under ESTA and were required to have onward tickets from the US (this was required at the airport in NZ, it was not an issue when we arrived in the US).
If we try to check-in at Auckland Airport to the US are we going to run into this same requirement now that we have the B1/B2 visas? Will the airline allow us to board without an onward ticket?