Question : Are you paying the cheapest or highest price for your ticket to Madrid?
Answer : Prices for this trip tend to fluctuate much less than other flights from China. They can range from $616 to $729. The further out you book a route, the more likely you are to save.
Question : Which airline is offering the cheapest flight from CSX to MAD?
Answer : Air China is your best bet for finding that coveted low fare. They're offering fares as low as $616, while prices for other flights are as high as $729.