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

Currently, January is the cheapest month in which you can book a flight from Kumamoto to San Francisco (average of $276). Flying from Kumamoto to San Francisco in June is currently the most expensive (average of $364). 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.

What is the cheapest time of day to fly from KMJ to SFO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kumamoto to San Francisco as you normally would.

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

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

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

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

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

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

$927+ Flights from Kumamoto to San Francisco

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Cheap flight deals from Kumamoto to San Francisco

Round-trip from	$1,088 (oojo)
One-way from	$927 (FlightHub)

From Kumamoto to San Francisco

Search Deals

One-way flight from Kumamoto to San Francisco

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Find flight deals from Kumamoto to San Francisco

Cheapest flights from Kumamoto to San Francisco
Explore the most affordable flight options available from Kumamoto to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Fri 7/2511:55 amKMJ - SFO

1 stop25h 05mSTARLUX Airlines

Thu 7/3112:50 amSFO - KMJ

1 stop17h 55mSTARLUX Airlines

Deal found 6/10

$1,088

Fri 7/2510:25 amKMJ - SFO

1 stop18h 35mMultiple Airlines

Fri 8/13:30 pmSFO - KMJ

1 stop25h 55mMultiple Airlines

Deal found 6/10

$1,127

Best flights from Kumamoto to San Francisco
Discover carefully curated flight deals from Kumamoto to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Fri 7/2511:55 amKMJ - SFO

1 stop25h 05mSTARLUX Airlines

Thu 7/3112:50 amSFO - KMJ

1 stop17h 55mSTARLUX Airlines

Deal found 6/10

$1,088

Fri 7/2510:25 amKMJ - SFO

1 stop18h 35mMultiple Airlines

Fri 8/13:30 pmSFO - KMJ

1 stop25h 55mMultiple Airlines

Deal found 6/10

$1,127

Last-minute flights from Kumamoto to San Francisco
Discover last-minute flight deals from Kumamoto to San Francisco. Data last updated June 12, 2025 and is based on user searches.

Fri 7/2511:55 amKMJ - SFO

1 stop25h 05mSTARLUX Airlines

Thu 7/3112:50 amSFO - KMJ

1 stop17h 55mSTARLUX Airlines

Deal found 6/10

$1,088

Fri 7/2510:25 amKMJ - SFO

1 stop18h 35mMultiple Airlines

Fri 8/13:30 pmSFO - KMJ

1 stop25h 55mMultiple Airlines

Deal found 6/10

$1,127

One-way flights from Kumamoto to San Francisco
Search for one-way flight options from Kumamoto to San Francisco. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Sat 8/92:00 pmKMJ - SFO

1 stop18h 00mAsiana Airlines

Deal found 6/10

$927

Sat 8/98:10 pmKMJ - SFO

2 stops42h 45mMultiple Airlines

Deal found 6/10

$1,223

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kumamoto to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KumamotoSan Francisco

KMJ - SFO

KMJSFO

Kumamoto

Fri 7/25

11:55 am-9:00 pm

1 stop25h 05m

San Francisco

Thu 7/31

12:50 am-10:45 am

1 stop17h 55m

$1,088

KumamotoSan Francisco

KMJ - SFO

KMJSFO

Kumamoto

Fri 7/25

10:25 am-1:00 pm

1 stop18h 35m

San Francisco

Fri 8/1

3:30 pm-9:25 am

1 stop25h 55m

$1,127

KumamotoSan Francisco

KMJ - SFO

KMJSFO

Kumamoto

Sat 8/9

2:00 pm-4:00 pm

1 stop18h 00m

$927

KumamotoSan Francisco

KMJ - SFO

KMJSFO

Kumamoto

Sat 8/9

8:10 pm-10:55 pm

2 stops42h 45m

$1,223

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Kumamoto to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Kumamoto 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 Kumamoto to San Francisco

Rainfall in San Francisco by month

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

STARLUX Airlines

9.1

Wonderful

177 reviews

Reviews

1 / 7

10.0

Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

STARLUX Airlines

9.1

Wonderful

177 reviews

STARLUX Airlines

9.1

Wonderful

177 reviews

Reviews

1 / 7

10.0

Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Asiana Airlines

8.2

Very good

440 reviews

STARLUX Airlines

9.1

Wonderful

177 reviews

Reviews

1 / 7

10.0

Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

Can I find deals for flights from Kumamoto to San Francisco that include hotel bookings?
Yes. In addition to deals on Kumamoto to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kumamoto to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kumamoto to San Francisco.
Can I find deals for business class flights from Kumamoto to San Francisco?
Yes. Cheapflights offers flight deals from Kumamoto to San Francisco 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 Kumamoto to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Kumamoto to San Francisco (average of $276). Flying from Kumamoto to San Francisco in June is currently the most expensive (average of $364). 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

Roseville

Mountain View

South San Francisco

Livermore

Turlock

Santa Cruz

Manteca

Fairfield

Watsonville

Antioch

Hollister

Milpitas

Newark

Hayward

Alameda

Sunnyvale

Daly City

Union City

Campbell

Capitola

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$927+ Cheap flights from Kumamoto (KMJ) to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kumamoto to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kumamoto to San Francisco

Round-trip from

One-way from

Find flight deals from Kumamoto to San Francisco

Cheapest flights from Kumamoto to San FranciscoExplore the most affordable flight options available from Kumamoto to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Kumamoto to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kumamoto to San Francisco that are best for you.

Best time to book a flight from Kumamoto to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Kumamoto with our price prediction graph.

Cheapflights Insights

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

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

Related info for your journey

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

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

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

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

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

Traveling to a place near Kumamoto?

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Alternative routes for Kumamoto to San Francisco

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Travel Smart

Cheapest flights from Kumamoto to San Francisco
Explore the most affordable flight options available from Kumamoto to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.