Ok I will be very honest with you - I have missed a NUMBER of connections with NWA -
I am temporarily living in Lansing with DFH and our wedding and our families live in NY so I have been flying back and forth almost once every 4-8 weeks.
I fly with them because often they are the cheapest price to LGA - and they are by far the cheapest when I fly out of Lansing.
Ok - in the past two years I have flown with them a MINIMUM of 12 times - probably more -
I have had VERY few (as in say 3 flights) that the plane has left on time and there has been no mishaps.
Most often my flight leaves within 15-30 mins of the scheduled time
I have had 4 times where they had to switch planes because of mechanical problems causing me to miss my connection.
I have had 1 time a passenger in NY decide as we are about to take off that she couldn't fly so we left 1 hour late but I had 1 hour between my flights and it was the next gate so I just made it.
I have missed my connection about 4 times. They usually put me on the next flight which leave 1- 2 hours later - but it is still a hassel. I would try to see if you can switch your flight to get a MINIMUM of 1 hour - and try to sit towards the front of the plane so you get off quicker.
At lot of it has to do with what gate you come into and where you are leaving from since it is a 70 gate terminal.
People often say to me "Oh you are flying Northworst"
I look at it this way - you often get what you pay for - so these things don't surprise me - I would try to get more time between your flights if you can - I make sure when I fly them that if they put me on the next flight I will ok with that