When did the NY Mets last make it to a National League Championship ??

[Jack Valentino]

It's been like forever, hasn't it?? Not in my memory, but admittedly I've spent much less attention to baseball in the last decade or two, but "NY Mets" and "NL Championship series" were two phrases that never went together in my way of speaking!

If I'm wrong, someone please let me know!

[AZSkiffyGeek]

1. They beat the D-Backs in the playoffs in 1999

I think they would've gone on to the championships that time, but I stopped paying attention once they beat my D-Backs.
Edit - digging further, they lost in the NLCS in 99, but went to the Series in 2000 against the Yankees.

[Jack Valentino]

4. I got to go to a Diamondbacks game back in 2008,

while I was visiting my best friend who lives in Tempe.

I forget who they played or who won, but was treated to the "more unusual that not" spectacle of the Diamondbacks pitcher hitting a long double which went all the way to the fences... Well, those National League pitchers do have more batting experience...

[rsdsharp]

2. 2015. They beat the Cubs to make it to the Series where they lost to the Royals.

[Jack Valentino]

3. Thanks guys. I thought it was longer.

[lastlib]

5. My Royals defeated them in the 2015 World Series.

Last time they won? Couldn't tell ya.