$539 Cheap Flights from Nagasaki (NGS) to San Francisco (SFO)

View $539 flight on Mon, Oct 27, 2025Opens in a new window

Popular airlines from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO)

Cheap Flights from Nagasaki to San Francisco (NGS-SFO)

Prices were available within the past 7 days and start at $539 for one-way flights and $991 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Fri, Dec 19 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$991 Roundtrip, found 4 hours ago
$991
Roundtrip
found 4 hours ago
Select China Eastern Airlines flight, departing Fri, Dec 19 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $991 found 4 hours ago
Korean Air
Mon, Dec 15 - Tue, Jan 13
NGS
Nagasaki
SFO
San Francisco
$1,065 Roundtrip, found 4 hours ago
$1,065
Roundtrip
found 4 hours ago
Select Korean Air flight, departing Mon, Dec 15 from Nagasaki to San Francisco, returning Tue, Jan 13, priced at $1,065 found 4 hours ago
Japan Airlines
Thu, Dec 18 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$1,069 Roundtrip, found 4 hours ago
$1,069
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Thu, Dec 18 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $1,069 found 4 hours ago
Japan Airlines
Thu, Dec 18 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$1,162 Roundtrip, found 4 hours ago
$1,162
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Thu, Dec 18 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $1,162 found 4 hours ago
Japan Airlines
Thu, Dec 18 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$1,215 Roundtrip, found 4 hours ago
$1,215
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Thu, Dec 18 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $1,215 found 4 hours ago
China Eastern Airlines
Mon, Dec 15 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$1,244 Roundtrip, found 4 hours ago
$1,244
Roundtrip
found 4 hours ago
Select China Eastern Airlines flight, departing Mon, Dec 15 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $1,244 found 4 hours ago
Japan Airlines
Thu, Dec 18 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$1,295 Roundtrip, found 4 hours ago
$1,295
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Thu, Dec 18 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $1,295 found 4 hours ago
Japan Airlines
Fri, Dec 5 - Fri, Dec 12
NGS
Nagasaki
SFO
San Francisco
$1,297 Roundtrip, found 1 day ago
$1,297
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Fri, Dec 5 from Nagasaki to San Francisco, returning Fri, Dec 12, priced at $1,297 found 1 day ago
Hawaiian Airlines
Thu, Dec 18 - Tue, Jan 13
NGS
Nagasaki
SFO
San Francisco
$1,377 Roundtrip, found 4 hours ago
$1,377
Roundtrip
found 4 hours ago
Select Hawaiian Airlines flight, departing Thu, Dec 18 from Nagasaki to San Francisco, returning Tue, Jan 13, priced at $1,377 found 4 hours ago
Lufthansa
Tue, Dec 16 - Sat, Jan 10
NGS
Nagasaki
SFO
San Francisco
$1,635 Roundtrip, found 4 hours ago
$1,635
Roundtrip
found 4 hours ago
Select Lufthansa flight, departing Tue, Dec 16 from Nagasaki to San Francisco, returning Sat, Jan 10, priced at $1,635 found 4 hours ago
Flights from Nagasaki (NGS) to San Francisco (SFO)
Origin airport
Nagasaki
Destination airport
San Francisco Intl.
Airlines serving
All Nippon Airways, American Airlines, China Eastern Airlines, Hawaiian Airlines, Japan Airlines, Korean Air, Lufthansa
Roundtrip price
$990
Distance
5703 mi

Nagasaki to San Francisco Flights

The cheapest times to fly from Nagasaki to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Nagasaki to San Francisco are during the month of December. You can find some of the cheapest flights from Nagasaki to San Francisco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Nagasaki to San Francisco

Sunday is one of the best days to book for cheap flights from Nagasaki to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Nagasaki to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Nagasaki to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $539 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Nagasaki to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Nagasaki to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO) cost?
Secure a cheap one-way flight from $539 or cheap return flight from $991 from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO)?
The cheapest month to fly from NGS to SFO is December, when there's less demand. Off-peak season is typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest NGS to SFO flight.
How many flights per day from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO)?
There aren't any daily direct flights departing from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from NGS to SFO?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO)?
Opt for a flight from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO) last-minute?
Last-minute fares from NGS to SFO are usually more expensive. To secure the lowest prices, start looking for flights ahead of time. That said, if you can play around with your travel dates, it's possible to land a cheap fare right before your trip.
Is it cheaper to book a NGS to SFO flight and hotel package?
Booking a NGS to SFO flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our impressive range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Nagasaki Airport (NGS) to San Francisco Intl. Airport (SFO)?
In most cases, you can reschedule or cancel your NGS to SFO flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further information, visit our Customer Service portal.

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*Available to One Key members.