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Kumamoto

$1,159+ Cheap flights from San Francisco (SFO) to Kumamoto (KMJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KMJ
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from San Francisco to Kumamoto

Cheapest flights from San Francisco to Kumamoto
Explore the most affordable flight options available from San Francisco to Kumamoto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This STARLUX Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:10 pmSFO - KMJ
1 stop18h 25mSTARLUX Airlines
Wed 12/3111:45 amKMJ - SFO
1 stop24h 15mSTARLUX Airlines
Deal found 12/15$1,975

Find flight deals from San Francisco to Kumamoto

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Kumamoto (KMJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,159
(STARLUX Airlines)

Popular in

December

Cheapest in

August

Average price

$1,868
Provider with most accurate pricing for San Francisco-Kumamoto flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Kumamoto flights.
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From San Francisco to Kumamoto
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($240 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($74 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Kumamoto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from San Francisco to Kumamoto that are best for you.

Fly from

San Francisco

Fly to

Kumamoto

Route

Depart

Return

Price

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Thu 1/29

11:10 pm-10:35 am

1 stop18h 25m

Kumamoto

Thu 2/5

11:45 am-7:00 pm

1 stop24h 15m

$1,159

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Thu 2/5

11:10 pm-10:35 am

1 stop18h 25m

Kumamoto

Mon 2/9

11:45 am-7:00 pm

1 stop24h 15m

$1,410

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Thu 2/5

7:00 am-8:55 pm

2 stops20h 55m

Kumamoto

Mon 2/9

10:00 am-9:50 am

1 stop16h 50m

$1,851

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Sun 12/28

11:10 pm-10:35 am

1 stop18h 25m

Kumamoto

Wed 12/31

11:45 am-7:00 pm

1 stop24h 15m

$1,975

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Thu 3/26

12:10 am-10:35 am

1 stop18h 25m

Kumamoto

Fri 4/10

11:55 am-8:30 pm

1 stop24h 35m

$6,010

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Sun 12/21

11:40 pm-5:30 pm

1 stop24h 50m

$2,092

San FranciscoKumamoto

SFO - KMJ

SFOKMJ

San Francisco

Sun 12/21

3:00 pm-9:25 am

2 stops49h 25m

$2,313

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

  • Most accurate provider: When it comes to deals on San Francisco-Kumamoto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Kumamoto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Kumamoto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Kumamoto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Kumamoto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Kumamoto

Have a flexible travel schedule? Discover the best time to fly to Kumamoto from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Kumamoto

What is the cheapest month to book a flight from San Francisco to Kumamoto?

Currently, December is the cheapest month in which you can book a flight from San Francisco to Kumamoto (average of $568). Flying from San Francisco to Kumamoto in June is currently the most expensive (average of $1,201). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Kumamoto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Francisco to Kumamoto?

    A quick flight from San Francisco to Kumamoto can take about 18h 25m. STARLUX Airlines provides one of the quickest options available for as low as $1,159. The distance between San Francisco and Kumamoto is about 5662 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from San Francisco to Kumamoto that include hotel bookings?

    Yes. In addition to deals on San Francisco to Kumamoto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Kumamoto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Kumamoto.

  • Can I find deals for business class flights from San Francisco to Kumamoto?

    Yes. Cheapflights offers flight deals from San Francisco to Kumamoto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Kumamoto?

    Currently, December is the cheapest month in which you can book a flight from San Francisco to Kumamoto (average of $568). Flying from San Francisco to Kumamoto in June is currently the most expensive (average of $1,201). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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