Question : How long are most people's visits to Amsterdam when they fly in from Moline?
Answer : Of course you're not most people, but if you were, you'd stay roughly 18 days.
Question : Is price more important than specific travel days for you?
Answer : The best day to fly on a budget this month is Sunday. Being flexible with your travel days garners you even more savings during your booking.
Question : Which airline is offering the cheapest round-trip flight from MLI to AMS?
Answer : is your best bet for finding that coveted low fare.