Booking.com and Expedia offer similar reach but differ in fee structures and guest audiences. Booking.com typically charges hosts a commission of around 15%, while Expedia's commission ranges from 15% to 25% depending on the property type and market. Booking.com is generally considered stronger for European markets, while Expedia has historically had greater US reach. Many hosts list on both platforms to maximise visibility and occupancy rather than choosing between them.