Cheap Flights from San Francisco to Kumamoto City from US$641

Frequently Asked Questions

• What are the cheapest flights from San Francisco to Kumamoto City (SFO-KMJ)?

  Based on Trip.com data, ZIPAIR offers one-way fares as low as US$641 on Cheapest nonstop routes (e.g. SFO to KMJ on Sat, Jun 27), while Air Premia offers Cheapest nonstop round-trips from US$1,441 departing on Sun, Jun 7 and returning on Sat, Jun 13.

• Which airlines offer flights from San Francisco to Kumamoto City?

  At the moment, several airlines serve connecting flights from San Francisco to Kumamoto City, including: STARLUX Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from San Francisco to Kumamoto City?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Kumamoto City is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from San Francisco to Kumamoto City?

  To find best deals on flights from San Francisco to Kumamoto City, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Jun 27, with one-way flights priced at just US$641.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is ZIPAIR.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Kumamoto City travel is around December.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from San Francisco (SFO) to Kumamoto City (KMJ) the cheapest?

  The cheapest months to fly from San Francisco to Kumamoto City is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from San Francisco to Kumamoto City on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from San Francisco to Kumamoto City on June 6, 2026 with Air Premia, with prices starting at US$1,441.

• Which airports can I fly to for Kumamoto City from San Francisco?

  You can land at any one of the following hubs in Kumamoto City, with San Francisco International Airport to Kumamoto Airport (SFO-KMJ) is by far the most common option on this route: Kumamoto Airport (KMJ).

• Is there any time difference between San Francisco and Kumamoto City?

  The time difference between Kumamoto City and San Francisco is 17h.

• How do I change or cancel my ticket from San Francisco to Kumamoto City?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.