$577 Cheap Flights from Niigata (KIJ) to Seattle (SEA)

View $577 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from Niigata Airport (KIJ) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Niigata to Seattle (KIJ-SEA)

Prices were available within the past 7 days and start at $577 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA) cost?
Lock in a cheap one-way flight from $577 or cheap return flight from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between KIJ and SEA. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from KIJ to SEA. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA)?
You'll have to catch a flight with a layover when traveling from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from KIJ to SEA?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**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 Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from KIJ to SEA are generally more expensive. To lock in the cheapest rates, start searching for flights as early as possible. That said, if you can play around with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a KIJ to SEA flight and hotel package?
Booking a KIJ to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Niigata Airport (KIJ) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your KIJ to SEA flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Niigata
Destination airport
Seattle - Tacoma Intl.
Distance
4703 mi

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Niigata to Seattle Flights

The cheapest times to fly from Niigata to Seattle

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 Niigata to Seattle are during the month of . You can find some of the cheapest flights from Niigata to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Niigata to Seattle

Sunday is one of the best days to book for cheap flights from Niigata to Seattle: 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 Niigata to Seattle

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 Niigata to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $577 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 Niigata to Seattle 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 Niigata to Seattle 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.

 

Niigata to Seattle Flights

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*Available to One Key members.