Originally Posted by Analise
The shuttles between DCA & LGA and LGA and BOS are the most reliable flights I've encountered at LGA. Yet on flights from ORD in the summer, I have been delayed on many occasions. I often prefer just to fly into JFK even though it's further from Manhattan on Friday evening summer flights. I end up returning home sooner out of JFK.
The only non-stop ORD-JFK flight I know of for this summer is a Delta flight that goes out in the middle of the day. Taking connecting flights to go from ORD to JFK during the summer is an even bigger gamble than just taking a frequent non-stop flight to LGA and over-landing it to JFK.