US Airports to try and avoid for turbulence

[freinstein]

Did a search and didn't see anything.

I know Denver is almost always bad. Are there any other airports that usually bumpy no matter what the weather is outside?

Thinking of flying out west (Montana area) this Summer with a connection through MSP or SLC. I am a frequent, but still bad, flyer.

Any suggestions are helpful.

[ted]

Obviously any place can have turbulence, but I've flown in and out of MSP dozens of times without problems. SLC is probably more likely to have turbulence since it's near the mountains, but I doubt it's as bad as Denver.