I'm looking at airfare for a trip in August ISP-MCO. The nonstop flights are $140 on the way down. I can book a flight that changes at BWI for $120 and save us $100. It arrives at BWI at 740 and departs at 815. On the way home it's 40 minutes and we'd save $90 per ticket. Is that enough time? I'm hoping I can book the flights that have a stop and rebook for the nonstop if the price drops.