I presume you're using the Multi-City function. However, it looks like you're not putting in the times right.

You need to make sure you give enough time for the preceding flight to arrive and then put in the desired departure time for the next leg.

For example, say you're doing MIA-CVG via Then CVG-CLT and CLT-EWR. You need to figure out when the MIA-CVG would land, and put in CVG-CLT after that landing time.

However, may I ask why this interesting routing? If you're flying on UA, you will have a tough time with connections. However, It looks like you might be flying on US instead (the CLT part)?

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