Expensive ticket purchase coming up - $5000+ - I normally use my Chase card but would only get 2X points. Looks like if I use the Explorer card I would get 9X dollars spent. That's 10,000 vs 45,000 right? I only fly two times a year, international. Insurance is better on Chase but . . . . . am I missing something? I understand the Chase points are more flexible. THANKS!

(Tried to find a similar thread but could not . . . )