I think my last post is long overdue for a Booking code update post, so here are all the ongoing promos and coupons you can use when booking those hotel rooms. Collected and sorted these by region, I know some of the codes might show up as invalid or expired, I just tried to include as many coupons as I can, so you could test them yourselves and report back. I will try to keep the list updated. Hope this helps!

Global

• 10%CREDIT: 10% back in Booking.com Travel Credits. Minimum booking value: $50.
• EARN10%: 10% back in Booking.com Travel Credits. Minimum booking value: $50.
• WELCOME10: 10% off. First booking or first app booking.
• SOOTHE15: $15 off. New customers only. First reservation.
• AFFGEN420: 8% off.
• BEACH10: 10% off. Minimum stay: 3 nights.
• GRAC13: 10% off. New and returning customers.
• DPFJOR52: $25 off. New customers only. Minimum booking value: $50.
• ALEXTHATMEDIAGURL: 10% off.
• DH77ABT10: 10% off. Returning guests only.
• ROVERRATHI15: 15% off. Applies to the next booking.
• DJSTAMI: 20% off.
• COASTAL10: 10% off.
• 836C6327: 10% off.
• GATEWAY: 15% off.
• BONGGLOBETTER123: 20% off.
• BOOKING.YEAH: 20% off.
• HERO10: 10% off.
• 6RETPG3QAZ: 10% off.
• FOLLOW8: 8% back toward a future Booking.com stay.
• 77PPYUS7KF: 10% off. Minimum booking value: $110.
• GENIUS: 10% off. Requires being logged into a Booking.com account.
• LDX872Q: 10% off. New customers only.
• SIANOK55: 55% off.
• BIGGEST30: 30% off.
• GETAWAY25: 25% off. Hotel reservations.
• CQENQR: Maximum 10% off. Applies to the next stay; exact discount can vary by booking.
• SOOTHE20: $20 off. New customers only.
• UY35EDC6: 10% off.
• A7WVYY4HEC: 10% off.
• APP: $10 off.
• SAVE10: 10% off.
• SAVE20: 20% off.
• WELCOME15: 15% off. New customers only. First booking.
• WELCOME: 20% off.
• HELLO: 10% off. Student offer.
• MOROCCANOIL: 25% off.
• TR5TRIPSAV: 20% off.
• HAPPY15: 15% off. Hotel bookings.
• CAFé-DA-MANHã: 40% off. Enter accented characters exactly.
• correct: 20% off.
• PMR02: 36% off.
• VEPSUMMER: 50% off. Accommodation bookings.
• Self-Coding: 30% off. Hotel reservations.
• 25BEACH10: 40% off. Last-minute stays.
• ROKT50: 50% off.
• SICKBITCHESONTHEBEACH: Maximum 70% off. Exact percentage can vary by booking.
• Regstrate: 10% off.
• SPRING50: 50% off.
• LOVE30: 30% off.
• LOVE: Maximum 30% off. Exact percentage can vary by booking.
• 5T2C2P6G49JV: $25 off.
• SHS20SCKI: 20% off.
• LOW: 20% off. In some campaign configurations, 10% off the first hotel booking for new loyalty members. One use per person.
• BOOKING15: 15% off.
• SHOP15: 15% off.
• MANDM: 10% off. Car-rental bookings.
• CARHIRE40: 40% off. Car hire, taxis and transfers.

United States

• RENTAL20: 20% off. US vacation rentals.
• HYATT20: 20% off garden admission or passes connected with Hyatt Grand Central New York.

United Kingdom

• NOMOREHOTELS: 10% off. NHS staff and NHS contractors.
• GLOBE15: 20% off. UK Booking.com bookings.
• Eppinger10: 20% off. UK stays.
• fr36jj3: £60 off. Family bookings.
• EXCLUSIVE: 15% off Getaways plus an £80 gift card.

Greece

• BOOKING10: 10% off. Sunlight Ornos Suites in Ornos, Mykonos only.

Switzerland

• FOOTY50: Maximum 50% off.

All Europe

• 2DA8F65E: €15 off.