Anything more than 4 hour is considered a stopover. Stopover is only relevant to direct flight with the same flight number. In your case, you have 2 seperate flights.
Originally Posted by
SquarePeg
If we have a 12+ hour layover (BOS to OGG via PDX), does that count as a "stopover" when it comes to FC upgrades? We land PDX at 8pm and depart the next day at 11am...
the website says "Paid Upgrades are subject to availability, do not include stopovers, and exclude industry discounts. Prices are based on one-way trip miles, as shown above, unless otherwise noted. No stopovers allowed. "