Question : Is the price you found a good deal?
Answer : Ranging from $1,374 to $1,893, prices for SFO to KMJ fluctuate much less than most routes from the United States. Prices tend to be lower the further out you book.
Question : Looking for the cheapest flight over the next 30 days?
Answer : Since low prices are preferred, look at Mar 31st. As of Mar 27th, it's showing the cheapest ticket sales at $1,374. That is 17% below the average price for this route, so you can spend that extra cash on an adventure in Kumamoto.
Question : Would you be willing to change your travel days if it saved you money?
Answer : For the month of April, Thursday is your cheapest day to fly. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
Question : How long do most people stay in Kumamoto?
Answer : Of course you're not most people, but if you were, you'd stay roughly 17 days.