Recent social media posts
07/01/2026
MAKE HASTE ⚽️🏃♀️
Order any Coca-Cola® beverage from July 1st through October 31st in the Denny’s App, and as a Denny’s Rewards member, you’ll be automatically entered for a chance to win a trip for two to see the U.S. Women’s National Team in action in 2027 (thanks to Coca-Cola and U.S. Soccer). ✈️🔥
No purchase necessary. 18+ in 50 U.S./D.C. If you are entering via Carnival Cruise Line, you must be 21+.
Ends 10/31/26. For free entry, available on 7/1/26, see Rules link in bio.
07/01/2026
this Friday will be the happiest day of your life… because we’re offering Rewards members 13% off our menu
Join Denny's Rewards to earn points, get discounts, and enjoy exclusive offers.
06/30/2026
country-fried steak + eggs = joy
06/30/2026
Kelsey Pfendler is almost there.
After weeks alone on the Pacific, she's closing in on Hawaii — and we've been cheering her
on every mile of the way.
Before she began, she stopped at Denny's for one last meal on land. Now our team wanted
to send some encouragement for the final push.
Watch the video and help us cheer You Row Kelsey across the finish line.
06/26/2026
spotify wrapped is terrified of me
06/24/2026
perhaps not is right 🙂↕️
06/21/2026
sun’s out. slams out.
06/21/2026
yes dad, you definitely had a “cannon” and would’ve gone to the big leagues. happy father’s day ❤️
06/20/2026
History in the making starts with courage… And sometimes a Philly Cheesesteak Omelette. Row on, You Row Kelsey. America’s Diner is cheering you on and will be waiting for you at the finish.
06/18/2026
genuinely that pancake is a 10/10
06/16/2026
Just a little dude having a big flavor moment. The Diner Dipper’s Cheesy Bacon Ranch Sliders, Mozzarella Sticks, and Bone-In Buffalo Wings are no joke!
06/12/2026
oh to freeze time and smell the coffee forever 😮💨
06/10/2026
crispy potatoes and pan fried chicken in a perfectly tangy bourbon sauce? yeah, we’ll take 3.
07/22/2025
By adding California Avocados, take every meal from great to perfect, and they are now in season! With sustainably farmed California Avocados, every Denny’s meal is a 10! Come and get everything you "avo" wanted today!
07/15/2025
By adding California Avocados, take every meal from great to perfect, and they are now in season! Make every Denny's meal a 10 just by adding locally and responsibly grown California Avocados. Come and get everything you "avo" wanted today!
07/28/2024
Avocados take every meal from great to perfect and they are now in season! Make every Denny's meal a 10 just by adding locally and sustainably grown California Avocados. Come and get everything you avo wanted today!
08/18/2023
Avocados take every meal from great to perfect and they are now ethically sourced! Make every Denny's meal a 10 just by adding in season . Come and get everything you avo wanted today!
Address
3170 Harbor Boulevard
Costa Mesa, CA
92626
To get to the restaurant located on Harbor Boulevard in Costa Mesa, you have a few options:
Public Transport:
- Take the Orange County Transportation Authority (OC Transpo) bus and get off at the nearest bus stop on Harbor Boulevard.
Driving/Parking:
- If you are coming from the north/south, take Interstate 405 and exit onto Harbor Boulevard. Follow Harbor Boulevard until you reach your destination.
- If you are coming from the east/west, take Interstate 55 or 73 and exit onto Costa Mesa Freeway. From there, take the exit for Harbor Boulevard and follow it until you reach your destination.
- There is typically plenty of parking available in a nearby lot or street parking.
Please note that these directions are general and may need to be adjusted depending on your specific starting location.
Alerts
Be the first to know and let us send you an email when Denny's posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.
What people say
American restaurants are known for their classic comfort food and everyday value, and Denny's on Harbor Boulevard in Costa Mesa is no exception. With over 65 years of experience, Denny's has been bringing people together over great food, making it the perfect place to relax and be yourself. What sets Denny's apart from other American restaurants is that it is open 24 hours a day, 365 days a year, so you can always satisfy your cravings.
Denny's offers an expansive menu featuring delicious, innovative options that cater to the taste and dietary requirements of every guest that walks in the door. From breakfast to lunch to dinner and dessert, they have something for everyone. Their Sizzlin' Skillets menu features new items like the Parmesan Chicken Sizzlin' Skillet or the Beyond Burger featuring a plant-based patty. If you're looking for a classic favorite, try Moons Over My Hammy®, hand-dipped Milk Shakes, 100% Beef Burgers or the world-famous Build Your Own Grand Slam®.
The restaurant has updated its decor but still maintains its classic American diner feel. The casual attire makes it easy for anyone to come in and enjoy a meal with friends or family. They offer services such as takeout, waiter service, walk-ins and groups which makes it convenient for any occasion.
Overall, Denny's on Harbor Boulevard in Costa Mesa is an excellent choice for those who want to enjoy classic American comfort food at any time of day or night. With their expansive menu options and friendly atmosphere, you'll feel right at home at America's diner.
