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Flex Mussels - UES, New York, NY

Flex Mussels - UES

4.7
4.7
2794 Reviews
$30 and under
Seafood

Make a reservation

2 people
7:00 PM
Booked 27 times today
  • Neighborhood gem
  • Lively
  • Good for special occasions
Direct importers of mussels from Prince Edward Island and oysters that taste like you're kissing the sea.

Dining areas

Additional information

  • Dining style
    Casual Dining
  • Price
    $30 and under
  • Cuisines
    Seafood, American, Canadian
  • Hours of operation
    Brunch Fri–Sun 11:00 am–4:00 pm Happy Hour Wed, Thu 4:00 pm–5:00 pm Dinner Daily 5:00 pm–10:00 pm
  • Phone number
    (212) 717-7772
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Dress code
    Casual Dress
  • Neighborhood
    Upper East Side
  • Cross street
    South East corner of 81st Street and Third Ave
  • Parking details
    Street Parking
  • Public transit
    4, 5 & 6 trains to 86th Street, and M79 and M86 buses to 3rd Avenue.
  • Additional
    Bar Dining, Bar/Lounge, Beer, BYO Wine, Corkage Fee, Counter Seating, Full Bar, Non-Smoking, Patio/Outdoor Dining, Wine

What 2,794 people are saying

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.7
4.7 based on recent ratings
  • 4.7Food
  • 4.6Service
  • 4.5Ambience
  • 4.3Value

NoiseModerate

Loved For

  • Manhattan

    Seafood

Review summary

AI-generated from verified diner reviews
Flex Mussels - UES offers a consistently "excellent food" and service experience. Known for its "best place for mussels in NYC," the charming decor and attentive staff create a delightful atmosphere. While some find the space noisy, outdoor seating provides a quieter option. The "Thai mussels" and "lobster roll" are crowd favorites.

2,794 Reviews
  1. Emily

    New York City

    3 reviews

    5.0

    3 reviews

    Dined 3 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We had a great experience at flex mussels! Arrived at around 5pm on 1/21/2025 in time for their happy hour which was awesome, although the rules/limitations/pricing structure for it was a little confusing. We had tiny tinis a kale salad and moule frites and all were fantastic our server was super nice too

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  2. lori

    New York City

    9 reviews

    5.0

    9 reviews

    Dined 4 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    From the moment we arrived, greeted by a lovely hostess and seated at a great banquette table. Our waitress was terrific and the food fantastic. We were celebrating two birthday's and could not have asked for a better Birthday Brunch. The attention to detail can be seen from the decor in the room to the great coffee that was served. Cant wait to go back.

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  3. Allison

    Chicago

    1 review

    5.0

    1 review

    Dined on January 15, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Excellent!! Good service, better food and such a special evening

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  4. Allyson

    VIP

    Los Angeles

    11 reviews

    5.0

    11 reviews

    Dined on January 13, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Absolutely delicious every time! Best oysters and mussels in NYC. Eden is an excellent server- professional, attentive and warm. We love Flex!

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  5. Heather

    New York City

    10 reviews

    5.0

    10 reviews

    Dined on January 10, 2025

    1. Overall 5
    2. Food 5
    3. Service 4
    4. Ambience 5
    My guest and I had a lovely time at Flex and especially loved the everything donuts! They were truly a bite of heaven. Flex is a very charming place and we will definitely be back. The host was also very warm and welcoming which is always appreciated.

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  6. emma

    New York City

    8 reviews

    5.0

    8 reviews

    Dined on January 4, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    As usual, excellent food! Excellent service!!! And dessert is always hits the spot.

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  7. Matthew

    VIP

    Kansas City

    19 reviews

    5.0

    19 reviews

    Dined on January 4, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We had net been to Flex Mussels in 12 years. It is still wonderful!

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  8. Tom

    Philadelphia

    1 review

    5.0

    1 review

    Dined on January 3, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Great experience at Flex Mussels. Food and service were excellent. Can’t wait for another chance to enjoy the mussels.

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  9. richard

    New York City

    39 reviews

    5.0

    39 reviews

    Dined on January 2, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Charming and thoughtful decor, down to “ ambiance” in the rest- rooms. Attentive wait-staff. Lobster tools nicely proportioned, and very tasty. Guacamole with crab meat is pricey, but a treat. Excellent for group experience and child friendly.

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  10. Sara

    New York City

    46 reviews

    5.0

    46 reviews

    Dined on January 2, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    First time at new location on 81st/3rd - beautiful corner spot with charming, elevated decor. Same great menu, great service. Best place for mussels in NYC! (Just please can you bring back the fun tshirts?)

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FAQs

Flex Mussels - UES is rated 4.7 stars by 2794 OpenTable diners.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

Make a reservation

2 people
7:00 PM
Booked 27 times today
Google Map for Flex Mussels - UES

1431 3rd Ave, New York, NY 10028

Dining areas

Additional information

  • Cross street
    South East corner of 81st Street and Third Ave
  • Neighborhood
    Upper East Side
  • Hours of operation
    Brunch Fri–Sun 11:00 am–4:00 pm Happy Hour Wed, Thu 4:00 pm–5:00 pm Dinner Daily 5:00 pm–10:00 pm
  • Price
    $30 and under
  • Cuisines
    Seafood, American, Canadian
  • Dining style
    Casual Dining
  • Dress code
    Casual Dress
  • Parking details
    Street Parking
  • Public transit
    4, 5 & 6 trains to 86th Street, and M79 and M86 buses to 3rd Avenue.
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Additional
    Bar Dining, Bar/Lounge, Beer, BYO Wine, Corkage Fee, Counter Seating, Full Bar, Non-Smoking, Patio/Outdoor Dining, Wine
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