Along with a fitness center, this smoke-free aparthotel has a bar/lounge and concierge services. WiFi in public areas is free. Each apartment offers a coffee/tea maker, a flat-screen TV with digital channels, and a hair dryer. Amenities also include an iron/ironing board and free toiletries. Housekeeping is available on request.
Flatiron Hotel, Sonder by Marriott Bonvoy offers 62 air-conditioned accommodations with coffee/tea makers and designer toiletries. Each accommodation is individually furnished and decorated. 42-inch flat-screen televisions come with digital channels. Bathrooms include bathtubs or showers, complimentary toiletries, and hair dryers. Housekeeping is offered on request and change of towels can be requested. Cribs/infant beds (complimentary) are also available.
Recreational amenities at the aparthotel include a fitness center.
Languages
Catalan, English, French, Spanish
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If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
Elevator (36 inch wide door)
Wheelchair accessible (may have limitations)
Smoking not allowed
Services and conveniences
Change of towels on request
Concierge services
Guidebooks
Housekeeping (on request)
Iron/ironing board
Limited-hour front desk
Location highlights
Near a hospital
Near a metro station
Near a train station
Things to do
Gym
Safety features
Carbon monoxide detector not reported (host has not indicated whether there is a carbon monoxide detector on the property; consider bringing a portable detector)
Smoke detector (host has indicated there is a smoke detector on the property)
General
1 building
62 units
Housekeeping (on request)
Individual decor
Individual furnishings
Towels (changed on request)
Policies
Check-in
Check-in start time: 4:00 PM; Check-in end time: anytime
Contactless check-in available
Minimum check-in age: 18
Check-out
Check-out before 11:00 AM
Contactless check-out available
Special check-in instructions
Guests will receive an email within 72 hours before arrival with check-in instructions and an access code; front desk staffed during limited hours
Prior to arrival, you must complete online registration via a secure link
You will be asked to provide the property with a copy of your government-issued photo ID after booking
Guests are recommended to download the property's Sonder mobile app before check-in
Access methods
Access code, front desk (limited hours)
Pets
Pets not allowed (service animals are welcome, and are exempt from fees)
Children and extra beds
Children are welcome
Rollaway/extra beds are not available
Free cribs are available on request at the property
Property payment types
Important information
You need to know
Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
This property accepts credit cards; cash is not accepted
Noise-free guestrooms cannot be guaranteed
Host has not indicated whether there is a carbon monoxide detector on the property; consider bringing a portable detector with you on the trip
Host has indicated there is a smoke detector on the property
This property is professionally cleaned
This property affirms that it follows the cleaning and disinfection practices of Commitment to Clean (Marriott)
We should mention
Construction is underway at a neighboring building and there may be noise disturbance from the construction work
Property is also known as
Sonder Flatiron
Sonder | Flatiron
Sonder at Flatiron
Flatiron Hotel, Sonder by Marriott Bonvoy New York
Flatiron Hotel, Sonder by Marriott Bonvoy Aparthotel
Frequently asked questions
Is Flatiron Hotel, Sonder by Marriott Bonvoy pet-friendly?
No, only service animals are welcome at the property.
How much is parking at Flatiron Hotel, Sonder by Marriott Bonvoy?
This property doesn't offer parking.
What time is check-in at Flatiron Hotel, Sonder by Marriott Bonvoy?
Check-in start time: 4:00 PM; Check-in end time: anytime.
What time is check-out at Flatiron Hotel, Sonder by Marriott Bonvoy?
Check-out is at 11:00 AM.
Where is Flatiron Hotel, Sonder by Marriott Bonvoy located?
Located in Manhattan, this aparthotel is steps from Madison Square Park and 5th Avenue. Empire State Building and Herald Square are also within 10 minutes. 28 St. Station (Broadway) and 23 St. Station (5th Av.) are within a 5-minute walk.
Flatiron Hotel, Sonder by Marriott Bonvoy Reviews
Reviews
8.0
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.
Rating 10 - Excellent. 66 out of 152 reviews
10 - Excellent
66
Rating 8 - Good. 42 out of 152 reviews
8 - Good
42
Rating 6 - Okay. 25 out of 152 reviews
6 - Okay
25
Rating 4 - Poor. 11 out of 152 reviews
4 - Poor
11
Rating 2 - Terrible. 8 out of 152 reviews
2 - Terrible
8
8.0/10
Cleanliness
8.0/10
Staff & service
7.6/10
Amenities
8.0/10
Property conditions & facilities
8.0/10
Eco-friendliness
Reviews
10/10
Loved the fact that I had free access to Blink gym 3 blocks from the property.Property in an ideal location.
Michael
Stayed 28 nights in Jun 2025
10/10
Excellent place to stay
Tim
10/10
Excellent location!!
Josymar
Stayed 3 nights in Feb 2025
10/10
Very good
Thomas
Stayed 1 night in Mar 2025
10/10
Everything was good about it
Alex
Stayed 2 nights in Jan 2025
6/10
the staff were very nice but check is was a hassle; codes did not work; when i went to request room cleaning first morning on line at 7am and it would not work they told me it had to be requested at check in; no one told me that; coffee machine spewed grinds, show dispenser pumps broken and with all the hard surface the room next door was too loud.
Charles
Stayed 2 nights in May 2025
10/10
A wonderful place for singles or couples. Not a great place for families because the rooms are small due to the premium location. However the hotel is excellent if you're going alone or just with another friend. I can't recommend it enough. The rooms are small but that's because of the lower price for the absolute top tier area it's in
Alfredo
Stayed 2 nights in Feb 2025
10/10
great experience
elise
Stayed 4 nights in Dec 2024
8/10
Really good location, cleaning is not included in the price of the room.
Lorenzo
8/10
The room was well kept and the toiletries were complete. The shower space is a little too small though but there was a lot of shampoo, conditioner and shower gel available. The dispenser pump of the shampoo was defective though. The staff were accommodating and quickly responded to requests for assistance such as cleaning arrangements. The online check-in and check-out experience was seamless and convenient. Generally, our experience was quite good.
Lora Liza
Stayed 7 nights in Mar 2025
6/10
I liked the location, I liked my room, the bed was great and so were the pillows. The shower experience was 5 star. However, not so clean! Hair here and there, the place could use a good wipe down! I wasn't there long so it wasn't much of any issue. It's as if the hired cleaners have not been trained how to properly clean a room. Also, the room is stuffy. AC resolved the problem for me, and it was 45 degrees outside and raining. It would probably be terrible if one needed the heater instead of the AC.
Pamela
Stayed 2 nights in Apr 2025
10/10
Great stay! Will definitely book again….
Stephen
Stayed 4 nights in Mar 2024
8/10
Great location that was convenient and walkable to many of the tourist attractions including Time Square, MSG and Central Park. Lots of dining options around hotel as well.
Eric
Stayed 5 nights in May 2024
8/10
perfect location. Rooms are comfortable enough for a city trip.
Patrick Harry
Stayed 4 nights in Dec 2023
2/10
Was gross. Had a connecting door to another room that I didn’t know about when booking. And someone was coughing and puking loudly all night
Joseph
Stayed 1 night in Jan 2025
8/10
Great location, nice building, only issue was digital key and code was very inconsistent
Verified traveler
Stayed 5 nights in Nov 2024
8/10
Room was spotless. Shower was great, bed was pretty comfy. Neighborhood is great. Only gripes: coffee machine was broken and room temperature control didn’t seem to work.
Rachel
Stayed 2 nights in Oct 2024
8/10
Very courteous staff and very centrally located
Sheetal
Stayed 4 nights in Aug 2022
6/10
Room code didn't work right after check in, I had to go back down to front desk and wait for the code to be assigned again. Shower gadgets were poorly maintained and hot water takes too long, also cools down after a bit. Staff friendly and helpful.
Verified traveler
Stayed 4 nights in Jan 2025
10/10
Enjoyed my stay. Good amount of space in the room with storage lockers in the lobby. Great location
Robert
Stayed 9 nights in Nov 2023
10/10
nice and spacious room
BYUNGHA
Stayed 1 night in May 2024
4/10
Place was not clean, bed was not comfortable and they folding even have a vending machine or anything. Won’t be back
Kyle
Stayed 2 nights in Dec 2024
10/10
Super
Dogan
Stayed 8 nights in Apr 2024
8/10
Great communication!
Lottie H
Stayed 9 nights in Jul 2024
10/10
Second time staying at this property i actually got a better room booking through expedia. Love the sonder properties. The only thing was their was a demolition happening right out our window. We were adequately warned and they provided airplugs