Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at Apr 2nd. As of Mar 20th, it's showing the cheapest ticket sales at $184. That is 10% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : Do prices fluctuate more for this route than others?
Answer : Ranging anywhere from $184 to $432, prices for PUS to SHA do fluctuate a lot more than most routes from the Republic of Korea. The further out you book a route, the more likely you are to save.
Question : Which airline is offering the cheapest flight from PUS to SHA?
Answer : Shanghai Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $184, while prices for other flights are as high as $432.
Question : How long do most people visit Shanghai?
Answer : Of course you're not most people, but if you were, you'd stay roughly six days.
Question : Would you be willing to change your travel days if it saved you money?
Answer : In April, Sunday is your lowest-cost day to fly. Being flexible with your travel days garners even more savings during booking.