Originally Posted by
Thai-Kiwi
Why do you think this is impossible? A travel agent can certainly pull together an itinerary that includes non-alliance or non-cooperation partner airlines. You might not be able to do it online.
OP. Try using Matrix ITA to see if there is a fare per the example below. If you can't find an OTA, then a decent 'bricks and mortar' TA should able to pull it together.
You do run a risk when you buy via an OTA (and to a lesser extent, bricks and mortar TA) that during misconnect or IRROPS, the airlines have no incentive to, or obligation to, accommodate you. This is why, to me, an itinerary doesn't exist unless it can be ticketed directly by an airline or in a pinch, a trustworthy TA with a solid reputation for proactively working to resolve issues.
Originally Posted by
nzkarit
??? BA and NZ do have an interline agreement. Go to the AirNZ site and pick say WLG to MAN and see BA options. Sure not a partnership (so no status or FF earning) but still a single ticket so get those protections.
Though the AIrNZ doesn't show all possible flghts but only ones NZ have entered which logically connect with AirNZ flights and only for the more common destinations.
That's just an interline, same as UA tickets you on QF metal domestically when flying to the US out of an AU port they don't serve. They also cannot be ticketed from any POS other than NZ (airnewzealand.com.au simply says it's impossible to go to MAN, for example). Not only will you earn no status or points, but you'll be treated by BA as if you held no status with them as well which will not go in your favour during IRROPS as you'll be bottom of the barrel for priority. I'd personally treat that as if it wasn't a thing.