How about CLE-DTW-ICN with a 48 minute connection time at DTW? The CLE-DTW leg is on Pinnacle/Delta Connection.

If this is cutting it too close, I am considering booking the non-stop from Detroit to Seoul and driving to DTW instead of flying there.

But I really don't want to do this as the direct from DTW is $300 more than if the flight originates in CLE and I would rather not have to drive to DTW when CLE is 12 minutes from my house.

Thanks in advance for any thoughts and advice.