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Flex Mussels - UES, New York, NY

Flex Mussels - UES

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Visa Dining Collection

4.7 (2849)
$30 and under
Seafood
1431 3rd Ave, New York, NY 10028

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2 people
7:00 PM
Booked 74 times today

About this restaurant

  • Neighborhood gem
  • Good for special occasions
  • Lively
Direct importers of mussels from Prince Edward Island and oysters that taste like you're kissing the sea.

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 Daily 4:00 pm–6:00 pm Dinner Mon–Thu, Sun 5:00 pm–10:00 pm Fri, Sat 5:00 pm–10:30 pm
  • Phone number
  • 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 2,849 people are saying

Flex Mussels - UES reviews from people who’ve dined at this restaurant. Based on recent rating.

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
  • 4.7Service
  • 4.5Ambience
  • 4.4Value

NoiseModerate

Review summary

AI-generated from verified diner reviews
Flex Mussels - UES offers an exceptional dining experience with "delicious food" and "fantastic service." The mussels, particularly in Thai broth, are a standout, and the "donuts are supreme." The restaurant is praised for its "great happy hour," "charming decor," and attentive staff. A must-visit for seafood lovers!
2,849 Reviews
  1. Mary Beth VIP

    New York City10 reviews

    4.0

    Dined 1 day ago

    1. Overall 4
    2. Food 5
    3. Service 4
    4. Ambience 2
    We absolutely love flex mussels! My family and I have been going there for years. We went last night to celebrate our daughter‘s graduation and while the food was delicious, we were absolutely freezing the entire meal. We asked if the AC could be turned down a bit as it was blowing heavily on us. We asked multiple times and ended up having to put napkins over our shoulders to try to warm up. The table next to us was freezing as well. It wasn’t even that cold outside! It really took away from the whole experience, the food got cold quickly, and it was beyond uncomfortable.

    Is this helpful?

  2. Peter VIP

    Washington, D.C. Area22 reviews

    4.0

    Dined 2 days ago

    1. Overall 4
    2. Food 5
    3. Service 4
    4. Ambience 2
    Food is very good but sound is deafening. If you go try for an outside table weather permitting.

    Is this helpful?

  3. Daniel VIP

    Chicago / Illinois2 reviews

    5.0

    Dined 2 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great food and great service. Oysters were on point! Will definitely be back.

    Is this helpful?

  4. Kris

    New York City1 review

    5.0

    Dined 2 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great food and great service as always. Oysters were fresh and delicious, Dijon mussels didn’t disappoint.

    Is this helpful?

  5. Vedette VIP

    Las Vegas17 reviews

    5.0

    Dined 3 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Wonderful place with great mussels. Must visit.

    Is this helpful?

  6. Saho

    New York City6 reviews

    5.0

    Dined 3 days ago

    1. Overall 5
    2. Food 5
    3. Service 4
    4. Ambience 4
    People speak too loud. I think table needs to be apart from each other.

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  7. Yolanda

    New York City1 review

    5.0

    Dined 7 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Flex muscles is always good! One of my favorite places to eat

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  8. Karen

    New York City2 reviews

    5.0

    Dined on June 5, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Foodi was delicious!!!!! Serice was very ncie and the wiaiyer gave wonderful suggestions.

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  9. Belinda VIP

    New York City10 reviews

    2.0

    Dined on June 3, 2025

    1. Overall 2
    2. Food 2
    3. Service 5
    4. Ambience 2
    Not as good as it used to be. Muscles are okay and broth blend and less in pot than usual

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  10. OpenTable Diner

    Key West / Florida Keys1 review

    5.0

    Dined on June 2, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Food and service were excellent, as were the cocktails and wine selection.

    Is this helpful?

FAQs

Flex Mussels - UES is rated 4.7 stars by 2849 OpenTable diners.

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

  1. Home
  2. United States
  3. New York City
  4. Manhattan
  5. Upper East Side

Make a reservation

2 people
7:00 PM
Booked 74 times today
Google Map for Flex Mussels - UES

1431 3rd Ave, New York, NY 10028

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 Daily 4:00 pm–6:00 pm Dinner Mon–Thu, Sun 5:00 pm–10:00 pm Fri, Sat 5:00 pm–10:30 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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