Domestically, between 2 and 3 percent are paid F/C.
That would be an interesting stat to see. I have no idea what it is and ultimately Piney, you've forgotten more about this then I would know in my left, pinky toenail. Any comment or experience I would have is strictly subjective, not objective.
However, I do remember reading that US "claimed" it was selling, at full revenue, 30% of their F-Class seats. Now, when I read that I IMMEDIATELY said, "I don't believe that, maybe 30% of the transcon, but not 30% of the total."
And back when I was actually flying US as a CP, I think I was 100% on my upgrades....which doesn't seem feasible based on a 30% load factor.
Conversely, on CO....I know people who have been elite for YEARS and claim to have been upgraded on a CO transcon, two times in twn years. And for me, I know if I don't actually BUY the seat, EWR-SFO/SAN/SNA/LAX, etc...I know if I haven't actually PURCHASED the seat within 2 weeks of departure, I won't get one in F.
Overall, my upgrades on CO are, at BEST, 50% overall....maybe 50%...traveling to such fabulous places as MCO or MSP from EWR. EWR-ORD I'm 0-everything...I've never been upgraded, as a PE, even one time. Conversely, on US, I'm 100% PHL-ORD...
Again, that's not objective, but if that doesn't say it all, I'm not sure what does...
If WN had more options going N/S on the east coast, I'd be hard pressed not to at least try them given the recent changes announced.
Its an EXCELLENT product. It really is. The new Business Select and new boarding procedures have greatly enhanced their product. That was their "achilles heal" was the "cattle call," and they took care of that.