Summarizing: Likely only curbside check in closed. You will probably have the option to tag the bag yourself, but you will hand it to someone at the baggage desk. If you need assistance, you can go thru that line/option as well. More here on baggage check hours. If you have one ticket for the whole trip, you bag will be tagged at check in to your final destination, and you will not have to pick it up in MDW...as was shared below. Happy flying!
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