Nestled in its surroundings, Hotel 6400 offers a serene retreat with a garden and laundry facilities. Connect with WiFi and stay productive at the business center or take advantage of bike rentals to explore nearby.
Reviews
8.28.2 out of 10
Very good
Popular amenities
Laundry facilities
Free parking
Free WiFi
Non-smoking
Main amenities (12)
Daily housekeeping
Breakfast available
Business center
Terrace
Garden
Vending machine
Self-serve laundry
Meeting room
Luggage storage
Tour/ticket assistance
Banquet hall
Bike rental
Feel at home (6)
Cribs/infant beds (surcharge)
Private bathroom
Television
Garden
Terrace
Daily housekeeping
$182 nightly
The total price is $228
$228 total
Aug 7 - Aug 8
Total includes taxes and fees
Room options
Available filters for rooms
Showing 3 of 3 rooms
View all photos for Standard Double Room
Standard Double Room
8.08.0 out of 10
Very good
21 reviews
(21 reviews)
Highlights
Heating
Flat-screen TV
Premium bedding
Hair dryer
Private bathroom
Satellite channels
Desk
Wardrobe or closet
215 sq ft
Sleeps 3
1 King Bed
View all photos for Comfort Double Room
Comfort Double Room
9.09.0 out of 10
Wonderful
26 reviews
(26 reviews)
Highlights
Heating
Flat-screen TV
Premium bedding
Hair dryer
Private bathroom
Satellite channels
Desk
Wardrobe or closet
215 sq ft
Sleeps 3
1 King Bed
View all photos for Comfort Double Room Plus, Terrace
Hotel 6400 is a great choice for a stay in Sønderborg. Freebies like WiFi and self parking are added perks, and guests looking to stay active can check out the nearby hiking/biking trails. Other highlights at this eco-certified hotel include a terrace and a garden.
Languages
Danish, English, German
At a glance
DONE
Hotel size
48 rooms
DONE
Arriving/Leaving
Check-in start time: 3:00 PM; Check-in end time: anytime
Contactless check-in available
Minimum check-in age: 18
Check-out time is 11 AM
Contactless check-out available
DONE
Special check-in instructions
There is no front desk at this property
Guests can access their accommodation through a private entrance
DONE
Required at check-in
Credit card, debit card, or cash deposit required for incidental charges
Government-issued photo ID may be required
Minimum check-in age is 18
DONE
Pets
Pets not allowed
WIFI
Internet
Free WiFi in public areas
Free WiFi in rooms
LOCAL_PARKING
Parking
Free onsite self parking
Wheelchair-accessible parking and van parking on site
DONE
Other information
Smoke-free property
Property amenities
Food and drink
Buffet breakfast (surcharge) each morning 7:00 AM–9:30 AM
What to do
Hiking/biking trails nearby
Working away
Business center
Meeting room
Services
Tour/ticket assistance
Laundry facilities
Luggage storage
Bicycle rentals
Facilities
Garden
Terrace
Banquet hall
Accessibility
Elevator
Wheelchair-accessible parking
Wheelchair-accessible van parking
Wheelchair-accessible path to elevator
Wheelchair-accessible registration desk
Wheelchair-accessible lounge
Hand-held showerheads
Well-lit path to entrance
Room amenities
Be entertained
Flat-screen television
Satellite TV channels
Home comfort
Heating
Iron/ironing board
Sleep well
Premium bedding
Crib/infant bed (surcharge)
Freshen up
Private bathroom
Shower only
Free toiletries
Hair dryer
Towels
Stay connected
Desk
Free WiFi
Desk chair
More
Daily housekeeping
Mobile key entry
Special features
Awards and affiliations
Eco-Certified Property
This property participates in Green Key (Foundation for Environmental Education), a program that measures the property's impact on one or more of the following: environment, community, cultural-heritage, the local economy.
Fees & policies
Optional extras
Buffet breakfast is offered for an extra charge of approximately DKK 125 for adults and DKK 62.5 for children
Children & extra beds
Cribs/infant beds are available for DKK 250.0 per stay
Policies
Cashless transactions are available.
National rating
Hotelstars Union assigns an official star rating for properties in Denmark. This property is rated 3 stars.
Also known as
Hotel 6400 Sonderborg
Hotel 6400 Hotel
Hotel 6400 Sønderborg
Hotel 6400 Hotel Sønderborg
Hotel 6400 Hotel
Hotel 6400 Sønderborg
Hotel 6400 Hotel Sønderborg
Frequently asked questions
Does Hotel 6400 offer free cancellation for a full refund?
Yes, Hotel 6400 does have fully refundable room rates available to book on our site. If you’ve booked a fully refundable room rate, this can be cancelled up to a few days before check-in depending on the property's cancellation policy. Just make sure to check this property's cancellation policy for the exact terms and conditions.
Are pets allowed at Hotel 6400?
Sorry, pets aren't allowed.
Is parking offered on site at Hotel 6400?
Yes, there's free self parking.
What are the check-in and check-out times at Hotel 6400?
Check-in start time: 3:00 PM; Check-in end time: anytime. Check-out time is 11 AM. Contactless check-in and check-out are available.
What is there to do at Hotel 6400 and nearby?
Have fun during the warmer months with activities nearby such as hiking. Hotel 6400 also has a garden.
What's the area around Hotel 6400 like?
Hotel 6400 is a short 15-minute walk from Flensburg Fjord and 14 minutes' walk from Sct. Paul's Church.
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Hotel 6400 Reviews
Reviews
8.2
Very Good
All reviews shown are from real guest experiences. Only travelers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.More informationOpens in a new window
8.6/10
Cleanliness
8.0/10
Staff & service
7.8/10
Amenities
8.0/10
Property conditions & facilities
8.0/10
Eco-friendliness
Reviews
8/10 Very good
Mar 31, 2025
very nice experience
ENRICO
ENRICO, 3-night trip
10/10 Exceptional
Aug 20, 2024
It is a good property.
TUKARAM
TUKARAM, 6-night trip
10/10 Exceptional
Aug 14, 2024
Super alt ok
Benny
Benny, 1-night trip
10/10 Exceptional
Jul 27, 2025
Ældre hotel men pænt rent og rigtig fin morgenmad
Søren Martin
Søren Martin, 1-night trip
4/10 Fair
Jul 25, 2025
Hotel eller vandrerhjem?
"Hotellet" mindede mere om et vandrerhjem.
Rigtig god morgenmad
Forholdet mellem pris og kvalitet er ikke i orden!
Henrik Bonne
Henrik Bonne, 1-night trip
8/10 Very good
Jul 23, 2025
Pænt hotel i kedeligt område
Pænt og rent hotel med fin morgenmad. Beliggende i udkanten af byen i kedeligt område. TV kanaludvalget er dårligt, havde f.eks. ikke TV2. Røgluft trænger ind på værelser da der ryges lige udenfor.
Mikael
Mikael, 2-night trip
8/10 Very good
Jul 22, 2025
Ok ophold. Nemt selvbetjening vedr. indcheckning via kode. Fin morgenmad.
Skuffende gammelt badeværelse, især da hjemmesiden skriver moderne badeværelser. Der er ikke helt styr på udcheckning. Rengøringspersonale kom ind på værelset, selv om vi havde til kl. 11 til at checke ud.
Leila
Leila, 1-night trip
8/10 Very good
Jul 22, 2025
Charlotte
Charlotte, 5-night trip
8/10 Very good
Jul 20, 2025
Ganske udemærket hotel i rolige omgivelser.
Det fungerede fint med sms og koder.
Morgenmaden kunne være mere frisk. Kaffen var ikke nybrygget og brødet virkede lidt tørt…
Skønt med fri adgang til kaffe/the mm.
Henriette
Henriette, 2-night trip
6/10 Good
Jul 20, 2025
Verified traveler
2-night trip
8/10 Very good
Jul 19, 2025
Schwieriges Einchecken
Das Einchecken am Sonntag war schwierig, weil das Hotel abgeschlossen war und keine Rezeption besetzt war. Es erforderte mehrere Anrufe bei der Hotline, um in sHotel zu kommen
Christoph
Christoph, 1-night trip
8/10 Very good
Jul 16, 2025
Rengøring
Det var så fint 👌
Henrik Bak
Henrik Bak, 2-night trip
8/10 Very good
Jul 14, 2025
Trine
Trine, 1-night trip
8/10 Very good
Jul 12, 2025
leif
leif, 1-night trip
8/10 Very good
Jul 8, 2025
Susanne
Susanne, 1-night trip
8/10 Very good
Jul 5, 2025
Ganske udemærket hotel, ligger desværre en del udenfor alt.
Verified traveler
1-night trip
6/10 Good
Jul 3, 2025
Bjarne
Bjarne, 1-night trip
8/10 Very good
Jun 24, 2025
Liselotte
Liselotte, 2-night trip
6/10 Good
Jun 23, 2025
Besonders hervorzuheben ist die Sauberkeit sowie die Freundlichkeit des Reinigungspersonal.
Frühstück war in Ordnung.
Ansonsten eher für ein Kurztrip geeignet als für einen längeren Urlaub
Verified traveler
5-night trip
8/10 Very good
Jun 23, 2025
Der blev lovet login koder til indgang og værelset, hvilket vi ikke modtog. Værelser og morgenmad udmærket.