Flightaware shows flights.
https://flightaware.com/live/flight/DAL200. You can do searches for any flight. Outgoing (flight 200) Wed, Fri, & Sun. Returning (flight 201) Mon, Thur, & Sat.
I also got caught up in this mess. My outfitter wanted me to book certain days although it did not align with the days Delta was flying. Delta would let you book those dates, so I booked what the outfitter wanted at the beginning of January, for May but held off on booking my connecting flight with Airlink. Then about a month later here comes the alert that they've canceled my outgoing flight and rescheduled me a day later (a day they've been flying for months), moved my seats to where my wife and I were on separate rows and both in middle seats. I contacted my outfitter suggesting we go ahead and move my return out a day so we'd have the same number of hunt days and it aligned with the days Delta was flying. I figured it was only time until Delta also rescheduled it. The outfitter agreed and when I rescheduled the price fell by over 50%, wow! So, I've got a lot of e-credits now. On the seats it originally showed the plane full and would not let me adjust them. I messaged Delta and they said there was nothing they could do. I again checked later in the day and some seats had showed up letting at least get us back on the same row, although an aisle and window seat on a three-seat row.
