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Wait… It’s National What Day?

National Cheeseburger Day: Five Guys' BOGO lifted visits 64.1% for its busiest day in a year. Chick-fil-A and Tropical Smoothie also won.

By 
Lila Margalit
October 5, 2026
Wait… It’s National What Day?
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Key Takeaways
  • Five Guys' National Cheeseburger Day BOGO deal delivered its busiest day of the past year.
  • Chick-fil-A's Cow Appreciation Day drove its busiest day of the year, capped by a last-hour rush.
  • Tropical Smoothie Cafe's Flip Flop Day giveaway pulled 58.5% of the day's visits into the promo window.

Ready, Set, Celebrate!

Everybody loves a holiday. 

So, in honor of National Foot Traffic Day (okay, we made that one up), we dove into the data to see how brands turned some of the calendar’s more creative celebrations into reasons to visit. 

Say Cheese … 

National Cheeseburger Day falls on September 18th, and this year, plenty of chains got in on the action. But Five Guys – which rarely runs promotions – stole the show with a buy-one-get-one burger deal that ran from September 16th - 18th.

And diners were quick to bite. Visits rose 21.3% above an average Wednesday on the promotion’s first day, 37.8% above an average Thursday on its second, and 64.1% above an average Friday on the holiday itself – making September 18th Five Guys’ busiest day of the past 12 months. Across the full week, visits jumped 19.1% year over year.

Five Guys’ National Cheeseburger Day Deal Built to Its Busiest Day of the Past Year

Increase in Visits vs. the Same-Weekday Average, 12 Months Ending Sept. 20, 2026

Putting the Spike in Context

▲ 91.8%Sept. 18 visits vs. the average day of the past 12 months (promotion days excluded)
▲ 19.1%Visits for the week of Sept. 14–20 vs. the same week in 2025

…or Moooo

Chick-fil-A, for its part, held a celebration earlier in the summer more to the cows’ liking. On July 14th, the chain brought back National Cow Appreciation Day, offering free entrées to guests in bovine-themed attire.

The dress code took a little effort, but customers were happy to play along. Visits ran 29.8% above the Tuesday average for the past year, making July 14th the chain’s busiest Tuesday in that period – and its busiest day overall. At 21.1% above the daily average, traffic narrowly surpassed February 28th, when a free chicken biscuit giveaway drew a 20.9% lift on its final day.

The offer’s final hour drew an even bigger surge. From 6 to 7 PM, visits were 81.9% above the same-hour Tuesday average – suggesting a last-minute rush to join the herd.

Cow Appreciation Day Gave Chick-fil-A Its Busiest Tuesday of the Past Year

Tuesday Visits vs. the Average Tuesday, 12 Months Ending Sept. 20, 2026

During the Promotion

▲ 36.7%Foot traffic from 7 AM to 7 PM, while the free-entrée offer ran, vs. an average Tuesday
▲ 81.9%6–7 PM, the offer’s final hour
▲ 8.2%Visits for the week of July 13–19 vs. the same week in 2025

Flip-Flops?

National Flip Flop Day, it turns out, is also a thing. 

On June 5th, Tropical Smoothie Cafe offered free smoothies to flip-flop wearers from 2 to 7 PM. The casual dress code drew some serious traffic, with the giveaway window accounting for 58.5% of the day’s visits, compared with 40.2% during the same hours on an average Friday.

National Flip Flop Day Gave Tropical Smoothie Cafe Its Busiest Day of the Past Year

Daily Visits vs. the Average Day, 12 Months Ending Sept. 20, 2026

Foot Traffic Shifted to Promo Hours (2–7 PM)

▲ 172.0%Foot traffic from 2 to 7 PM, when flip flop wearers got a free smoothie, vs. an average Friday
40.2% → 58.5%Share of the day’s foot traffic between 2 and 7 PM, average Friday vs. Flip Flop Day

Save the Date

For retail and dining brands, the calendar offers plenty of opportunities to turn an ordinary day into an occasion. And customers are more than willing to turn out – even if the holiday isn’t on everyone’s calendar.

For more data-driven dining deep-dives, visit placer.ai/anchor.

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Related Topics

Chick-fil-A, Five Guys, Tropical Smoothie Cafe, LTOs
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