Cheap Flights from San Francisco (SFO) to Kumamoto (KMJ)

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      Travellers and cabin class, 1 Adult, Economy

      Compare San Francisco International to Kumamoto flight deals

      Find the cheapest month or even day of the year to fly to Kumamoto

      Book the best Kumamoto fare with no extra fees

      Flight deals from San Francisco International to Kumamoto

      Looking for a cheap last-minute deal or the best return flight from San Francisco International Airport to Kumamoto Airport? If you want to travel next month, return fares start from $1,352. Find the lowest prices on one-way and return tickets right here.

      Find the cheapest month to fly from San Francisco International to Kumamoto

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Kumamoto flights are currently cheapest in September.

      San Francisco International to Kumamoto: Alternative routes

      Compare routes from San Francisco International to Kumamoto below. You may find an airport to fly into that's cheaper, faster, or easier than Kumamoto.

      San Francisco to Kumamoto: Flight information

      The things to know before you go.
      Cheapest flight found$1,352
      Cheapest month to flySeptember

      Finding cheap flights from San Francisco International to Kumamoto: Frequently asked questions

      The best price we found for a return flight from San Francisco International to Kumamoto is $1,352. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from San Francisco International to Kumamoto. But we found flights with one or more stops from $1,352.
      As of August 2026, there are no flights flying from San Francisco International to Kumamoto.
      The cheapest month to fly from San Francisco International to Kumamoto is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Kumamoto Airport on Sunday, 27 September 2026.
      No airlines currently offer direct flights between San Francisco International Airport and Kumamoto Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kumamoto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kumamoto is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, China Airlines offers the cheapest flight tickets to Kumamoto.

      Travelling from San Francisco International Airport (SFO) to Kumamoto Airport (KMJ): what you need to know

      • The timezone in Kumamoto is UTC+9, which is 17 hours ahead of San Francisco.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Get to the airport on time to board your SFO to KMJ flight.

      • Travelling during a peak month such as July? Public holidays and other high seasons can mean longer lines at security. Be extra cautious and arrive up to four hours before international flights and two hours before domestic departures.

      • If you want to add a stop to your trip, just deselect 'Direct flights only' when searching for your ticket from San Francisco International Airport to Kumamoto Airport. These are the top stopovers between SFO and KMJ:

        • Tokyo Haneda Airport

        • Incheon International Airport

        • Taipei Taiwan Taoyuan Airport

      How to find the cheapest flights from San Francisco International Airport (SFO) to Kumamoto Airport (KMJ)

      • $630 is currently the best price for a one-way San Francisco International Airport to Kumamoto Airport flight. A return flight starts at $1,352. These fares may change based on availability and demand.

      • To get your hands on cheap tickets from SFO to KMJ, book early. Airlines tend to offer the most competitive fares when flights are first released.

      • Finding cheap flights from San Francisco International Airport to Kumamoto Airport is more likely if you're flexible with your trip dates. Use the 'Whole month' function to see the lowest fares across each month and snap up a great deal.

      • Save time looking for cheap flights from SFO to KMJ by setting up a Price Alert. We'll send you an email or notification through the app when fares go down.

      • Choose your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from San Francisco International Airport to Kumamoto Airport.

      Handy information about San Francisco International Airport (SFO)

      • 78% of flights that depart San Francisco International Airport arrive at their destination on schedule.

      • To get to San Francisco International Airport from central San Francisco, it takes around 25 minutes if you're travelling by car. This depends on traffic though. It's approximately 21 kilometres from the airport to the city centre.

      • You can expect a journey time of around 35 minutes on public transport.

      • Get your holiday off to a relaxed start by staying near SFO. Whether you're catching an early flight from San Francisco International Airport to Kumamoto Airport or just don't want to be rushed, these stays are ideal:

      Arriving at Kumamoto Airport (KMJ)

      Getting from Kumamoto Airport (KMJ) to central Kumamoto

      • KMJ is located at 1801 Oyatsu, Mashiki.

      • From Kumamoto Airport, Kumamoto is approximately 16 kilometres away. It takes around 30 minutes to drive to the centre.

      • Getting there by public transport takes roughly 40 minutes.

      When to fly to Kumamoto Airport (KMJ)

      • April is the most popular month for flights from San Francisco International Airport to Kumamoto Airport. To escape the crowds, travel to Kumamoto in March.

      • Lock in your flight from San Francisco International Airport to Kumamoto Airport for August if you'd like to explore Kumamoto during its warmest month. Expect temperatures of between 21ºC (70ºF) and 34ºC (93ºF).

      • If you like travelling in cooler conditions, look for a cheap ticket from SFO to KMJ in January. Average temperatures are between 0ºC (32ºF) and 12ºC (54ºF) then.

      Explore more of Japan

      • Kumamoto has plenty going for it, but there are so many other parts of Japan just waiting to be discovered. Around 499 kilometres north-east of Kumamoto, a visit to Osaka will keep you on the move. Check out popular attractions like Dotonbori, Osaka Castle and Universal Studios Japan.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.