Top 10 Hotels in Kosai (from $29) 2026 - Competitive Prices

A stone lantern, a pine tree, and a coastal view.

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Our top choices for Kosai hotels

A buffet line with various food items and condiments.

A hotel lobby with seating areas, a reception desk, and a coffee machine.

Vending machines with various beverages and snacks.

A hotel room with a bed, a desk with a telephone, a television, and a window with curtains.

1. Hotel Route Inn Hamanako

Kosai

RESTITUTA BULFA

$68 nightly

$76 total

Oct 29 - Oct 30

A balcony with wicker chairs and a table, overlooking a body of water and greenery.

A tatami mat room with a futon, a table, chairs, a television, and a cabinet.

A sunroom with a view of a lush landscape, furnished with wicker chairs and a glass table.

A room with a television, a desk with a kettle, a chair, and a window with curtains.

2. Tabist Kosai Hamanako no Yado

Kosai

Sigrid

$26 nightly

$29 total

Oct 5 - Oct 6

A traditional Japanese-style room with tatami flooring, a woven rattan ottoman, and a view of a cityscape through large windows.

A dining area with wicker furniture and a table set for two, overlooking a body of water and mountains.

A restaurant with large windows offering a view of a sunset over a body of water.

A reception desk with a sign reading "LE SENSORIEL" and a potted plant in the foreground.

3. Grand Mercure Lake Hamana Resort & Spa

Nishi Ward

Katarina

$58 nightly

$65 total

Oct 1 - Oct 2

A marina with several boats docked, a pier extending into the water, and a distant mountain range.

A cluttered storage area with various items, including boxes and debris, in a residential setting.

A traditional Japanese building with a tiled roof, wooden doors, and a gated entrance.

A long dining table with various dishes and a central pot, surrounded by tatami mats.

4. Minshuku Takahashi Kashibuneten

Nishi Ward

Yoong

$53 nightly

$59 total

Sep 30 - Oct 1

A hotel with a modern facade, large windows, and a prominent entrance with a covered area.

A white church with a cross on the front, surrounded by a garden with potted plants and a white gazebo.

A buffet setup with various food items and a decorative centerpiece.

A hotel room with two beds, a television, and a large window with curtains.

5. Loisir Hotel Toyohashi

Toyohashi

INKEOL

$102 nightly

$112 total

Sep 30 - Oct 1

A spacious lobby with a reception desk, a seating area, and a decorative plant centerpiece.

A hotel hallway with doors on both sides, carpeted floor, and recessed lighting.

A modern hotel with a prominent white facade, multiple floors, and a rooftop terrace.

A hotel room with a bed, a desk with a computer, a TV, a chair, a sofa, and a view of the city at dusk.

6. Hotel Associa Toyohashi

Toyohashi

Sanae

$64 nightly

$71 total

Oct 29 - Oct 30

The exterior of the Centurion Hotel with a clear view of the entrance, including the name and address.

A long, narrow hotel corridor with wooden doors on both sides and a carpeted floor.

A buffet with various dishes including seafood, salads, and noodles.

A lobby with seating arrangements, a reception desk, and a wall decorated with colorful artwork.

7. Centurion Hotel Hamamatsu

Naka Ward

Vwerosuo

$31 nightly

$34 total

Oct 4 - Oct 5

A modern train station with two sleek bullet trains on adjacent tracks, a pedestrian bridge overhead, and a tall building in the background.

A spacious indoor venue with a curved seating arrangement, white columns, and large windows allowing natural light.

A spacious lobby with high ceilings, large golden columns, and a polished marble floor.

A spacious lobby with a grand piano, seating area, and a large decorative column.

8. Okura Act City Hotel Hamamatsu

Naka Ward

Joseph

$113 nightly

$126 total

Oct 2 - Oct 3

A reception desk with a nameplate reading "Richmond" and a person in a business suit shaking hands with another individual.

A modern interior with a curved staircase, a carpeted floor, and a tiled wall.

A tall hotel building with a sign reading "Richmond Hotel" at the top.

9. Richmond Hotel Hamamatsu

Naka Ward

Lawrence

$49 nightly

$54 total

Oct 18 - Oct 19

A reception area with a counter, a clock, and a sign labeled "FRONT".

A hotel room with two beds, a desk with a computer, a window with curtains, a ceiling light, and a wall-mounted artwork.

A large wooden bookshelf filled with books, arranged in multiple rows and columns.

10. Hotel Route Inn Hamamatsunishi Inter

Nishi Ward

Takatsugu

$67 nightly

$75 total

Oct 29 - Oct 30

A high-rise room with a city view, large windows, a sofa, and a table with a lamp.

A restaurant with tables set for dining, a chandelier, and a city view through large windows.

A high-rise room with a city view, featuring a sofa, armchairs, and a coffee table.

A modern hotel room with a large city view, a flat-screen TV, a desk, and a comfortable bed with multiple pillows.

11. Hotel Arc Riche Toyohashi

Toyohashi

rogelio

$72 nightly

$80 total

Oct 12 - Oct 13

A spacious lobby with a central seating area, a bar, and a staircase.

A hotel room with a large bed, a TV, a balcony with a table and chairs, and a view of the city.

A modern hotel room with a sofa, armchair, round table, large window, and a flat-screen TV.

A modern room with a sofa, a chair, a round table, and a large window with a city view.

12. Hamamatsu Marriott Hotel

Naka Ward

Linda

$91 nightly

$100 total

Oct 12 - Oct 13

A modern breakfast buffet with various food items and a chef preparing food.

A traditional Japanese-style room with tatami flooring, wooden furniture, and sliding doors. Tables are set with chopsticks and a vase of flowers.

A spacious lobby with a central escalator, multiple seating areas, and digital information displays.

A hotel lobby with three elevator doors, a reception desk, and a wall-mounted sign.

13. Hotel Concorde Hamamatsu

Naka Ward

HIDEYUKI

$51 nightly

$57 total

Oct 18 - Oct 19

A hotel room with a bed, desk, chair, TV, and a potted plant.

A hotel with a modern facade, large glass windows, and a visible entrance.

A hotel hallway with a carpeted floor, a reception desk, and a vending machine.

A reception area with a counter, two wooden stools, a clock, a framed picture, and a bulletin board with pamphlets.

14. Kuretake Inn Hamamatsu Nishi Inter

Naka Ward

KOJI

$62 nightly

$68 total

Oct 12 - Oct 13

A desk with a desk lamp, a telephone, and a power adapter.

A multi-story hotel building with a sign for 'TOYOTA INN' at the top.

A parking sign with a directional arrow and a hotel name.

A classroom with desks, chairs, a vending machine, and a refrigerator.

15. Toyoko Inn Hamamatsu-eki Minami-guchi

Naka Ward

Kenichi

$49 nightly

$55 total

Sep 30 - Oct 1

A hot spring bath with a wooden bench, a stone border, and a view of a lake and mountains.

A modern dining area with a central island, buffet, and seating arrangement.

A clean, modern lobby with a checkered floor, a potted plant, and a glass elevator.

A swimming pool with a view of mountains and a body of water.

16. Hotel Listel Hamanako

Kita Ward

Andrew

$67 nightly

$76 total

Oct 5 - Oct 6

A library cafe with wooden tables and chairs, bookshelves, and a coffee bar.

A modern hallway with a large wall mural, carpeted flooring, and recessed lighting.

A modern library with wooden tables and chairs, bookshelves, and hanging light fixtures.

A laundry facility with multiple washing machines and dryers, including a CO/N washer and a 45kg dryer.

17. Comfort Hotel Hamamatsu

Naka Ward

George W

$40 nightly

$45 total

Oct 4 - Oct 5

A buffet with various food items and utensils.

A reception desk with a digital clock, calendar, and informational posters.

A modern building with multiple windows and a flat roof.

A hotel room with a large bed, a mirror, a bedside table, and a wall-mounted light.

18. Okadaya Bayside

Toyohashi

$52 nightly

$58 total

Oct 4 - Oct 5

A hotel room with two beds, a desk, a chair, and a window with curtains.

A multi-story Comfort Hotel building with a modern facade, numerous windows, and a prominent signage.

A classroom with tables and chairs, a clock on the wall, and large windows.

A reception area with a marble counter, two computers, a clock, and a first aid kit.

19. Comfort Hotel Toyohashi

Toyohashi

Joshua

$62 nightly

$68 total

Oct 25 - Oct 26

A modern living room with a sofa, a round black wire table, and hanging plants.

A bedroom with a bed, a bedside table, a projector screen displaying a nature scene, a window with blinds, and an air conditioning unit.

A modern interior with a wooden column, seating area, and a bar.

A modern outdoor area with a wooden table, a cylindrical wooden column, and a glass enclosure.

20. 365BASE outdoor hostel

Naka Ward

Mike

$41 nightly

$45 total

Sep 30 - Oct 1

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Stay near popular Kosai attractions

Arai Benten Beach

7.0/10 (2 reviews)

Why not spend a carefree afternoon at Arai Benten Beach during your travels in Kosai?

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Arai Beach

7.0/10 (2 reviews)

Why not spend a carefree afternoon at Arai Beach during your travels in Kosai?

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Sakichi Toyoda Memorial House

6.0/10 (2 reviews)

You can learn about the history of Kosai with a stop at Sakichi Toyoda Memorial House. Stroll along the lakeside or discover the area's desert landscape.

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Myoryuji Temple

After visiting Myoryuji Temple, make a plan to see the other sights and activities in Kosai. Take in the festivals and desert landscape in the area.

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Ogaji Temple

6.0/10 (2 reviews)

After visiting Ogaji Temple, make a plan to see the other sights and activities in Kosai. Amble around the area's lakeside or experience its festivals.

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Honkoji Temple

After visiting Honkoji Temple, make a plan to see the other sights and activities in Kosai. Experience the area's festivals and musical theater.

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Road Station Shiomisaka

Road Station Shiomisaka is just one of the places to see in Kosai, so why not enjoy the other things to explore during your travels? While you're in the area, wander around the natural setting.

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Learn more about Kosai

Between the golden shores of Arai Benten Beach and the tranquil waters of Lake Hamana, visitors find perfect spots for swimming and watersports. Explore the historic Sakichi Toyoda Memorial House before visiting ancient Ogaji Temple where locals still come to pray beneath centuries-old trees.

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Top Kosai Hotel Reviews

HOTEL SUI HAMAMATSU

10/10 Excellent

"Superbe endroit pour séjourner"

Okura Act City Hotel Hamamatsu

10/10 Excellent

"Another great Hotel in Japan I love it"

Hotel Associa Toyohashi

10/10 Excellent

"The early check-in fee is too expensive."

Dormy Inn EXPRESS Toyohashi Hot Spring

10/10 Excellent

"If you are staying in Toyohashi, this motel is great. The rooms were a nice size and clean. The only issue I had was with the pillows...so hard. Breakfast was great! Staff was amazing!"

EN HOTEL Hamamatsu

8/10 Good

"Overall the stay was great. I just wish there were more power outlets in the room. The one by the door was too loose and couldn't be used properly. There was one power strip on the wall but that was it The one thing we didn't like was the smoking room in one corner of the main lobby. Even though it has a door isolating it, the smell of cigarette was still strong around the lobby and reception area."

More cheap stays in Kosai

Tabist Kosai Hamanako no Yado

1253-1 Ochiba Kosai Shizuoka

$26 nightly

$29 total

Oct 5 - Oct 6

7/10 Good! (52 reviews)

Hotel South Garden Hamamatsu

325-30 Sunayamacho Hamamatsu Shizuoka

$38 nightly

$41 total

Oct 4 - Oct 5

7.6/10 Good! (52 reviews)

365BASE outdoor hostel

2-1-25 Hikuma, Naka-ku Hamamatsu Shizuoka-ken

$41 nightly

$45 total

Sep 30 - Oct 1

8.2/10 Very Good! (41 reviews)

AB Hotel Iwata

1-5-1 Nakaizumi, Iwata-shi Iwata Shizuoka Prefecture

$43 nightly

$48 total

Oct 12 - Oct 13

10/10 Exceptional! (2 reviews)

Castle Inn Toyokawa

14-1 Shimonagayamacho Toyokawa Aichi Prefecture

$43 nightly

$48 total

Oct 7 - Oct 8

Minshuku Takahashi Kashibuneten

3283-20 Bentenjima, Maisakacho, Nishi-ku Hamamatsu Shizuoka

$53 nightly

$59 total

Sep 30 - Oct 1

9.6/10 Exceptional! (60 reviews)

Frequently asked questions

What is the best area to stay in Kosai?

The best area to stay in Kosai is around Washizu Station, which serves as the city's main transportation hub and offers convenient access to local attractions.This area is ideal for travelers who prioritize ease of movement and access to amenities. It's centrally located within Kosai, making it simple to reach various points of interest via local transport. The hotels in this vicinity generally offer a good balance of quality and convenience, often including amenities like restaurants and easy check-in/check-out processes.For solo travelers or business visitors, staying near Washizu Station is particularly beneficial. Its direct connection to the JR Tokaido Line allows for straightforward travel throughout the region, whether you're heading to nearby cities for meetings or exploring Kosai's attractions like Lake Hamana or the Kosai City Museum.

What are the best budget hotels in Kosai?

For a highly-rated budget hotel in Kosai, consider the Hotel Route Inn Hamanako.This 3-star hotel, with an 8.0 rating, offers a convenient stay with complimentary self-parking, free toiletries, and free WiFi. It also provides free parking for RVs, buses, and trucks, and even has an electric car charging station. The hotel is located just 0.3 miles from Honkoji Temple and 3.4 miles from Lake Hamana.

What are the best hotels in Kosai near Lake Hamana?

For hotels in Kosai near Lake Hamana, the Hotel Route Inn Hamanako is a great option.This 3-star hotel, with an 8.0 rating, offers a convenient location just 3.4 miles from Lake Hamana. Guests can benefit from amenities such as free WiFi, free self-parking, and electric car charging stations. The hotel also provides free toiletries. It is also only 0.4 miles from Myoryuji Temple.

When is the best time to go to Kosai?

The best time to visit Kosai, Shizuoka Prefecture, is during the spring (late March to May) and autumn (September to November) months.Spring offers pleasant weather with comfortable temperatures, making it ideal for exploring the city's outdoor attractions. This season is particularly beautiful when the cherry blossoms are in bloom, typically from late March to early April, adding a picturesque backdrop to your visit. Travelers interested in scenic walks and mild weather will find this period enjoyable.Autumn also provides agreeable weather, with cooler temperatures and clear skies, which are great for sightseeing and outdoor activities without the summer heat or humidity. The changing foliage around the area, particularly in nearby mountainous regions, offers stunning natural beauty.

Can I cancel my hotel reservation on Expedia?

You can cancel your hotel reservation on Expedia, though it depends on the cancellation policy of your booking. Most bookings are refundable if canceled within 24-48 hours of the scheduled arrival. Be sure to check your booking confirmation for the exact cancellation policy. If free cancellation is available, you can cancel directly through your Expedia account by logging in, going to "My Trips", and selecting your reservation. To find flexible deals, filter your search by "Fully refundable property" for hotels in Kosai.

How much is the nightly rate at a Kosai hotel?

Prices for hotels in Kosai often vary, but you can find a great deal from $29 on Expedia. All sorts of factors affect price, such as the time of year or the days of the week you choose for your stay. Find the best deals by being flexible with your dates, and sort search results by "Price: low to high" for the cheapest rate.

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Flights to Kosai

Book Hotels in Kosai on Expedia.co.jp

Find hotels in Kosai from $29

Upfront pricing

Treat yourself

Be picky

Go beyond your typical stay in Kosai

Check prices for these dates

Filter by

Star rating

Guest rating

Our top choices for Kosai hotels

1. Hotel Route Inn Hamanako

2. Tabist Kosai Hamanako no Yado

3. Grand Mercure Lake Hamana Resort & Spa

4. Minshuku Takahashi Kashibuneten

5. Loisir Hotel Toyohashi

6. Hotel Associa Toyohashi

7. Centurion Hotel Hamamatsu

8. Okura Act City Hotel Hamamatsu

9. Richmond Hotel Hamamatsu

10. Hotel Route Inn Hamamatsunishi Inter

11. Hotel Arc Riche Toyohashi

12. Hamamatsu Marriott Hotel

13. Hotel Concorde Hamamatsu

14. Kuretake Inn Hamamatsu Nishi Inter

15. Toyoko Inn Hamamatsu-eki Minami-guchi

16. Hotel Listel Hamanako

17. Comfort Hotel Hamamatsu

18. Okadaya Bayside

19. Comfort Hotel Toyohashi

20. 365BASE outdoor hostel

Stay near popular Kosai attractions

Arai Benten Beach

Arai Beach

Sakichi Toyoda Memorial House

Myoryuji Temple

Ogaji Temple

Honkoji Temple

Road Station Shiomisaka

Learn more about Kosai

Top Kosai Hotel Reviews

HOTEL SUI HAMAMATSU

Okura Act City Hotel Hamamatsu

Hotel Associa Toyohashi

Dormy Inn EXPRESS Toyohashi Hot Spring

EN HOTEL Hamamatsu

More cheap stays in Kosai

Tabist Kosai Hamanako no Yado

Hotel South Garden Hamamatsu

365BASE outdoor hostel

AB Hotel Iwata

Castle Inn Toyokawa

Minshuku Takahashi Kashibuneten

Frequently asked questions

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