V-Flyer

I've been regularly checking April SFO/LHR round trips on the rewards checker and the 3rd through 15th are marked as "no flight or no reward seats left." However, I just booked a return using points via the usual purchase flow on the website.

Anybody know why it's like this? Those dates don't quite line up to Easter or bank holidays, so I'm confused.

It has been pointed out several times on here - the Rewards Checker simply isn’t 100% accurate, and shouldn’t be relied on

Nick