Are there extra fees at Sonder Onyx?

Any mandatory property fees are shown in your all-in total before you book — no surprises at checkout.

Is Sonder Onyx a good place to stay?

Guests rate it 8.5/10 (Very good) across 125 reviews.

How does pricing work at Sonder Onyx on travelpluscost?

One honest price: what the hotel charges us plus one small flat fee — the same for everyone, never based on your data. No hidden markup and no fake discounts.

Sonder Onyx

Name: Sonder Onyx
Address: 305 North 15th Street, Philadelphia, US
Rating: 8.5

8.5125 reviews

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Where to?

HotelPart of Sonder

305 North 15th Street, Philadelphia

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Popular amenities

Free WiFiGymRestaurantAir conditioning

About Sonder Onyx

Luxurious Accommodation in the Heart of Philadelphia

Experience the convenience and comfort of Sonder Onyx, located just 800 meters from downtown Philadelphia. Modern Amenities for a Relaxing Stay Enjoy free WiFi, a fully equipped kitchen with a dishwasher, oven, and microwave, as well as air conditioning and a flat-screen TV in each unit. Convenient and Central Location Explore nearby attractions such as the Liberty Bell, National Liberty Museum, and Philadelphia Museum of Art. Whether you're here for business or leisure, Sonder Onyx offers the perfect blend of style and functionality. Book your stay today at Sonder Onyx and make the most of your Philadelphia experience!

Good to know about Sonder Onyx

Pets

Not allowed

Children

Welcome

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Sonder Onyx

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How Sonder Onyx's price works

One flat fee

The price is what the hotel charges us plus one small, flat service fee — the same for every guest.

No surveillance pricing

We never use your device, location or browsing history to decide what you pay.

All-in, no surprises

Taxes and known fees are shown up front. What you see is what you book.

Sonder Onyx reviews

8.5

Very good

125 reviews · updated June 2025

Cleanliness6.9

Service7.8

Location7.5

Room Quality7.5

Amenities7.1

Value for Money6.9

Guests loved

+ Clean rooms
+ Friendly staff
+ Great location
+ Comfortable beds

Worth noting

– Limited parking
– Expensive breakfast
– No spa services

Things to do near Sonder Onyx

305 North 15th Street, Philadelphia

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Sonder Onyx property amenities

Internet

Free wired internet
Internet access

Pools, spa & fitness

Fitness facilities (surcharge)

Food & drink

Physical distancing in dining areas

Services & conveniences

Lift / Elevator
Staff adhere to local safety protocols
Screens / Barriers between staff and guests for safety

Climate & comfort

Non-smoking rooms
Air conditioning
Non-smoking throughout

Guest rooms disinfected between stays
Cleaning standards that are effective against Coronavirus
Physical distancing rules followed
Hand sanitizer in guest room and key areas
Cashless payment available
Sanitized tableware & silverware
Contactless check-in/check-out
Invoice provided
Guests can opt-out any cleaning services during stay
Shared stationery like menus, pens are removed
Guest room sealed after cleaning
Property cleaned by professional cleaning companies

Sonder Onyx room amenities

Bathroom

Hair dryer
Toilet
Private bathroom

Entertainment

Food & drink

Coffee/tea maker
Refrigerator
Microwave
Dishwasher
Kitchen

Comfort

Air conditioning
Heating

Washing machine

Frequently asked questions about Sonder Onyx

Does Sonder Onyx have WiFi?

WiFi is available at Sonder Onyx. Check your room's details for whether it's free or carries a charge.

Is there a gym at Sonder Onyx?

Yes, Sonder Onyx has fitness facilities.

Does Sonder Onyx have a restaurant?

Yes, there is on-site dining at Sonder Onyx.

Do the rooms at Sonder Onyx have air conditioning?

Yes, rooms at Sonder Onyx have air conditioning.

Is Sonder Onyx pet-friendly?

No, pets are not allowed at Sonder Onyx.

Is Sonder Onyx family-friendly?

Yes, Sonder Onyx welcomes families.

Is Sonder Onyx non-smoking?

Yes, Sonder Onyx is non-smoking throughout.

How far is Sonder Onyx from Honolulu airport (HNL)?

It's about 4914 mi (straight-line) from Honolulu airport (HNL).

What's the closest beach to Sonder Onyx?

The nearest is Lanikai Beach, about 4901 mi away (straight-line).

What is the cancellation policy at Sonder Onyx?

It depends on the rate you pick — many rooms at Sonder Onyx offer free cancellation. You'll see each room's exact policy before you book.

Sonder Onyx policies

Parking

No parking available.

Children and extra bed policy

Children of any age are allowed. You haven't added any extra beds. Any type of extra bed or child's cot/crib is upon request and needs to be confirmed by management.

Pets

Pets are not allowed.

Internet

WiFi is available in the hotel rooms and is free of charge.

You need to know about Sonder Onyx

Guests are required to show a photo identification and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply. This property will not accommodate hen, stag or similar parties. Please inform Sonder Onyx in advance of your expected arrival time. You can use the Special Requests box when booking, or contact the property directly with the contact details provided in your confirmation. Payment before arrival via bank transfer is required. The property will contact you after you book to provide instructions. A damage deposit of USD 400 is required. The host charges this 7 days before arrival. This will be collected by credit card. You should be reimbursed within 7 days of check-out. Your deposit will be refunded in full via credit card, subject to an inspection of the property. After confirmation, Sonder will reach out to guests through a secure link to gather some information regarding their stay. Sonder may require the guest to provide a photo of their government issued photo ID. Guests will receive check in details from property management three days prior to arrival. Please note, the layout, furniture, and decor o