Booking.com's Top Regulars Book a High-50% Share of Room Nights

Travelers in the top two tiers of Booking.com's Genius loyalty program account for just over 30% of the platform's active customers — and book a high-50% share of its room nights. Both figures rose over the past year, according to the company's first- and second-quarter earnings calls in 2026 and its 2026 proxy statement filed with the SEC, which reports the same pattern for 2025. Independent hotels are paying commissions on many of those stays because Booking.com masks guest contact data, making returning guests appear new in property management systems.

How Genius shifts the cost to the property

Genius membership costs the traveler nothing. The hotel funds the benefits. A property that joins the program gives every Genius member at least 10% off. It can offer level 2 members up to 15% and level 3 members up to 20%, plus free breakfast or a room upgrade. Booking.com then charges its commission on the discounted price.

Reaching level 2 takes five stays in two years. Booking.com's chief executive, Glenn Fogel, has described what these members do next: they book more often, cancel less, return more consistently, and book directly through Booking.com's app or site more often than other customers.

Booking.com says Genius generates bookings hotels would not otherwise capture, rather than shifting demand they already had, and that Genius guests write more reviews and fill more rooms in the off-season. That is the company's reading of its own data. More than 850,000 properties had joined the program by the end of September 2025.

The guest's incentive is straightforward. Her tenth booking through Booking.com earns her more than her second booking with a given hotel. She does not have to be disloyal to a property — only loyal to the app.

What does the masked data change for hotels?

Booking.com does not pass on a guest's real email address. Every reservation arrives under a unique alias ending in @guest.booking.com, with messages forwarded through it. Since September 28, Booking.com reservations also arrive without a phone number — privacy cited as the reason for the first change, fraud prevention for the second.

Email and phone are what many hotel systems match on to recognize returning guests. A Genius regular arriving for her third stay therefore checks in as a first-time guest, unless the desk recognizes her face or the system matches on name alone. Her room preference, anniversary note and allergy history stay buried in a profile the system cannot link.

The only large-scale count of return behavior comes from Bookboost, a guest messaging and CRM vendor, which studied 2.2 million guests at European hotel groups between 2024 and 2026. Guests whose first booking was direct returned 5.1% of the time. Guests whose first booking came through an OTA returned 1.3% of the time. OTAs accounted for 65% of first stays but only 32% of repeat stays. Bookboost did not disclose its matching method; if it relied on email addresses, OTA guests returning under a new alias would count as new, making the 1.3% an understatement.

The competition runs the same play

Expedia retired its One Key program on July 28, paying travelers back in OneKeyCash at every tier, while Hotels.com's new business travel mode places a one-tap rebook button in front of returning guests. Marriott reported that Bonvoy passed 295 million members at the end of June. Each program aims at the same outcome: the second booking happens inside its own app.

The operator's countermove

Independent hotels can start by pulling a 12-month repeat guest report and verifying it matches on name and check-in details, never email alone. Counting how many repeat guests returned through Booking.com, and the commission paid on their stays, quantifies the cost of hosting guests who already knew the property.

At the front desk, staff can collect the guest's real email address and add it to her profile manually, and check every Booking.com arrival against past guests by name — so the returning regular is recognized, and the offer for her next stay comes from the hotel, not the platform.