I have an award ticket ORD-LAX-AKL, CHC-LAX-ORD for next March, and I pulled it up on united.com's My Itineraries this morning. I see that flight times have changed, most notably on the CHC-LAX leg, which is leaving/arriving 90 minutes later than originally booked. Besides the fact that my LAX-ORD connection is going to be a tight one, especially if LAX customs is slow, I am confused by the status line on the itinerary, which appears immediately below the flight number in the lefthand box of each leg:

For my first leg, ORD-LAX, it reads:

Flight: Schedule Changed (this makes sense to me)

For my second leg, LAX-AKL, and my fourth leg, LAX-ORD, it reads:

Flight: Confirmed (this also makes sense to me)

But for the third leg, CHC-LAX, which has also experienced a schedule change, it reads:

Flight: TK

What does "TK" mean ?? Anyone else seen this?

Much appreciated.