HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Nagasaki

$663+ Cheap flights from Seattle (SEA) to Nagasaki (NGS)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — NGS
févr. 28 — mars 71
sam. 2/28
sam. 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Nagasaki with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Nagasaki

Cheapest flights from Seattle to Nagasaki
Explore the most affordable flight options available from Seattle to Nagasaki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 29, 2026.

This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/257:00 am
SEA
-
NGS
2 stops19h 40m
ANA
mer. 9/3011:35 am
NGS
-
SEA
2 stops18h 50m
ANA
Deal found 1/28$663
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/273:45 pm
SEA
-
NGS
1 stop28h 05m
ANA
ven. 3/611:05 am
NGS
-
SEA
1 stop19h 15m
ANA
Deal found 1/28$809
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/106:18 am
SEA
-
NGS
2 stops22h 07m
ANA
mar. 2/2411:10 am
NGS
-
SEA
2 stops26h 51m
ANA
Deal found 1/27$843
This Japan Airlines deal was found by Cheapflights users on 1/26. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 1/3111:43 am
SEA
-
NGS
2 stops59h 27m
Japan Airlines
mer. 2/43:45 pm
NGS
-
SEA
2 stops35h 10m
Japan Airlines
Deal found 1/26$987
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/103:45 pm
SEA
-
NGS
1 stop26h 25m
Multiple Airlines
mar. 2/248:40 pm
NGS
-
SEA
2 stops55h 15m
Multiple Airlines
Deal found 1/27$1,065

Find flight deals from Seattle to Nagasaki

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Nagasaki (NGS). 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 janvier 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$809
(Gotogate)

Popular in

May

Cheapest in

September

Average price

$823
Provider with most accurate pricing for Seattle/Tacoma Intl-Nagasaki flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Nagasaki flights.
Search Deals
From Seattle/Tacoma Intl to Nagasaki
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Nagasaki 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 janvier 29, 2026.
Use the filters below to find and compare flights from Seattle to Nagasaki that are best for you.

Fly from

Seattle

Fly to

Nagasaki

Route

Depart

Return

Price

SeattleNagasaki

SEA - NGS

SEANGS

Seattle/Tacoma Intl

ven. 2/27

3:45 pm-12:50 pm

1 stop28h 05m

Nagasaki

ven. 3/6

11:05 am-1:20 pm

1 stop19h 15m

$809

SeattleNagasaki

SEA - NGS

SEANGS

Seattle/Tacoma Intl

mar. 2/10

6:18 am-9:25 pm

2 stops22h 07m

Nagasaki

mar. 2/24

11:10 am-9:01 pm

2 stops26h 51m

$843

SeattleNagasaki

SEA - NGS

SEANGS

Seattle/Tacoma Intl

mar. 2/10

3:45 pm-11:10 am

1 stop26h 25m

Nagasaki

mar. 2/24

8:40 pm-10:55 am

2 stops55h 15m

$1,065

SeattleNagasaki

SEA - NGS

SEANGS

Seattle/Tacoma Intl

ven. 2/27

3:45 pm-11:15 am

2 stops26h 30m

Nagasaki

ven. 3/6

9:35 am-3:01 pm

3 stops22h 26m

$4,674

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Compare providers for flights from Seattle to Nagasaki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Nagasaki in January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Nagasaki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Nagasaki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Nagasaki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Nagasaki 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 Seattle-Nagasaki 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 Seattle to Nagasaki

Have a flexible travel schedule? Discover the best time to fly to Nagasaki from Seattle 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 Seattle to Nagasaki

What is the cheapest month to book a flight from Seattle to Nagasaki?

Currently, September is the cheapest month in which you can book a flight from Seattle to Nagasaki (average of $634). Flying from Seattle to Nagasaki in June is currently the most expensive (average of $859). 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 Seattle to Nagasaki. 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 Seattle to Nagasaki?

    Airlines like ANA fly from Seattle to Nagasaki in about 28h 05m. The time it takes to get you to your destination can typically vary by up to . Seattle and Nagasaki are separated by a distance of 5308 mi.

  • Can I find deals for flights from Seattle to Nagasaki that include hotel bookings?

    Yes. In addition to deals on Seattle to Nagasaki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Nagasaki?

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

  • Can I find deals for business class flights from Seattle to Nagasaki?

    Yes. Cheapflights offers flight deals from Seattle to Nagasaki 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 Seattle to Nagasaki?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Nagasaki (average of $634). Flying from Seattle to Nagasaki in June is currently the most expensive (average of $859). 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

Traveling to a place near Nagasaki?

Book flights to Nagasaki if you plan to visit one of these locations
Sasebo

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Nagasaki

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Nagasaki flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.