Cheap Flights to Kusatsu Onsen

View ₩309,100 flight on Mon, Jan 26, 2026Opens in a new window

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How much is the cheapest flight to Kusatsu Onsen?

Prices were available within the past 7 days and start at ₩309,100 for one-way flights and ₩433,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Sun, Sep 21 - Mon, Sep 29
GMP
Seoul
TOY
Toyama
₩433,600 Roundtrip, found 1 day ago
₩433,600
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Sun, Sep 21 from Seoul to Toyama, returning Mon, Sep 29, priced at ₩433,600 found 1 day ago
All Nippon Airways
Tue, Mar 3 - Sat, Mar 7
GMP
Seoul
TOY
Toyama
₩443,600 Roundtrip, found 5 days ago
₩443,600
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Tue, Mar 3 from Seoul to Toyama, returning Sat, Mar 7, priced at ₩443,600 found 5 days ago
All Nippon Airways
Wed, Feb 25 - Sat, Mar 7
GMP
Seoul
TOY
Toyama
₩483,600 Roundtrip, found 5 days ago
₩483,600
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Wed, Feb 25 from Seoul to Toyama, returning Sat, Mar 7, priced at ₩483,600 found 5 days ago
Korean Air
Thu, Sep 18 - Sun, Sep 21
ICN
Seoul
TOY
Toyama
₩685,700 Roundtrip, found 5 days ago
₩685,700
Roundtrip
found 5 days ago
Select Korean Air flight, departing Thu, Sep 18 from Seoul to Toyama, returning Sun, Sep 21, priced at ₩685,700 found 5 days ago
Vietnam Airlines
Sat, Oct 25 - Wed, Oct 29
ICN
Seoul
TOY
Toyama
₩2,334,900 Roundtrip, found 1 day ago
₩2,334,900
Roundtrip
found 1 day ago
Select Vietnam Airlines flight, departing Sat, Oct 25 from Seoul to Toyama, returning Wed, Oct 29, priced at ₩2,334,900 found 1 day ago

Searching for cheap flights to Kusatsu Onsen? No travel company presents more choices than Expedia if you're looking to compare flights to Kusatsu Onsen. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Kusatsu. Expedia provides the cheapest flights to many destinations in Kusatsu and you may find even greater savings if you combine your flight with a hotel stay in Kusatsu Onsen.

Frequently asked questions

What is the name of Kusatsu Onsen's airport?
Organize a flight to Kusatsu Onsen with Expedia and you'll be arriving at Haneda Airport (HND).
How many airlines fly to Kusatsu Onsen?
Kusatsu Onsen is serviced by 45 airlines from 102 worldwide airports.
Which airlines fly to Kusatsu Onsen?
Typically, travelers fly with ANA, Japan Airlines and Skymark Airlines when going to Kusatsu Onsen. The largest number of these flights arrive from Fukuoka, with ANA servicing this route the most frequently.
How many nonstop flights are there to Kusatsu Onsen?
With 4,586 direct flights running every week, you'll be touching down in Kusatsu Onsen before you have time to say, "Are we there yet?"
Where are the most popular flights to Kusatsu Onsen departing from?
Travelers often jet off from Fukuoka, Sapporo and Osaka airports when heading to Kusatsu Onsen.
How long is the flight to Kusatsu Onsen Airport?
If you're flying to Kusatsu Onsen from Fukuoka, you'll have a flight duration of 1 hour and 35 minutes. Those departing from Sapporo can expect to be midair for 1 hour and 41 minutes. From Osaka it's around 1 hour and 10 minutes away.
How to book the cheapest flight to Kusatsu Onsen?
We've all come across those fortunate jet-setters who somehow manage to land impossibly cheap fares wherever they go. Want to know how to do it for your Kusatsu Onsen vacation? Don't wait until the last minute to secure your flight. Another fantastic way to pick up the best deal is to research all options. If where you're headed has multiple airports, don't forget to research the cost of flying into a smaller terminal. Last of all, be prepared to book quickly if you find a great price. It might not stick around for too long! With a bit of know-how and a little luck, the perfect fare will be yours.
Do you have any tips for my flight to Kusatsu Onsen?
We've pulled together all the info you need to make your flight as pain-free as possible. Follow our tips and you'll be breezing through airport security and exploring Kusatsu Onsen before you know it. What to pack in your hand luggage:

  • First and foremost, put in your passport, official ID, bank cards and medications. Next, you'll want some extra in-flight entertainment to while away the hours. A thrilling book and a phone crammed with your favorite shows are good options. If you intend to catch more than just forty winks, a quality neck pillow and a pair of noise-canceling headphones will also be useful. Finally, leave space for a toothbrush and some cleansing wipes to ensure you arrive feeling fresh as a daisy.

Do not pack the following items in your hand luggage:

  • While the list of restricted items can differ between airlines, the general guide to follow is nothing sharp, flammable or explosive. This includes screwdrivers, drills, fuels and bleaching agents. Sports equipment like golf clubs, and items that could harm other people, such as firearms and swords, aren't allowed in the cabin either.

What to wear on a flight:

  • Your top priority is to feel as comfortable as possible. Go for a pair of slip-on shoes, dress in loose, breathable clothing and remember to take a pullover in case you get cold in the cabin.
  • Most travelers have heard about deep vein thrombosis (DVT), a blood clotting condition caused by long periods of inactivity. To minimize your risk on board, stay hydrated, consider wearing compression tights or socks and keep your feet and legs moving.

How to get through airport security fast when flying to Kusatsu Onsen?
The secret is to be well prepared before you get to security. That way, you'll be boarding that plane to Kusatsu Onsen in no time flat. Follow these tips and get your trip off to a spectacular start:

  • Security personnel first need to check that you have a valid passport and matching boarding pass before you can proceed any further. Have them ready to show.
  • Next up, both you and your hand luggage must be X-rayed. To make the process quick and painless, remove anything that is likely to trigger the alarm. Personal belongings such as your belt, coat and earphones need to go through the machine.
  • Electronic devices like laptops and phones will also have to go through the machine for inspection. Don't worry though, you'll be back online soon enough.
  • Any liquids or gels, such as toothpaste or perfume, that you want to bring on board must be no greater than 3.4 ounces (100 milliliters). They must also all fit inside a quart-size (one liter), clear zip-close bag.
  • The right choice of footwear can save you several precious minutes. Boots and heavy shoes are often required to be removed and X-rayed separately. Lightweight sneakers usually aren't.
  • Airlines will not allow any sharp objects in your carry-on luggage. If you must bring these kinds of items, check them in.

Flights to Kusatsu Onsen information
Destination airport
Toyama
Destination airport IATA code
TOY
Destination city name
Toyama
Roundtrip price
₩433,600

Trending flights to Kusatsu Onsen

Prices were available within the past 7 days and start at ₩309,100 for one-way flights and ₩433,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Sun, Sep 21 - Mon, Sep 29
GMP
Seoul
TOY
Toyama
₩433,600 Roundtrip, found 1 day ago
₩433,600
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Sun, Sep 21 from Seoul to Toyama, returning Mon, Sep 29, priced at ₩433,600 found 1 day ago
*Available to Expedia members.