Originally Posted by
tourist
The CO flight is the first leg US city X->EWR, and the SK flight is the second leg EWR->Scandinavia city Y, with a transfer at EWR, so I will check-in for both flights at the same time.
to be 100% sure, check in for the first flight only, then at EWR you can check in for the second flight. (if time between connections allow?)