When you gotta go, you gotta go, and the one standard in domestic first class is that there's only one bathroom at the front of the plane (assuming it's a single-aisle aircraft, as is the case for 99% of all intra-US flights). If I have to go and the front lav is occupied, I head to the ones in the rear.

In 2026, the answer depends on whether you are flying a standard "First Class" product or a "Super-Luxury Suite." On most domestic and short-haul international flights, First Class passengers share a private lavatory located at the front of the cabin, which is reserved exclusively for the 8 to 20 passengers in that section, ensuring much shorter wait times than in Economy. However, you do not have a bathroom inside your seat area. The true "own bathroom" experience is found in ultra-exclusive products like The Residence by Etihad on the A380, which features a three-room suite including a private ensuite bathroom with a functional shower. Similarly, Emirates First Class offers massive private "Shower Spas" for its suite passengers, though these are still technically shared among the First Class cabin rather than being assigned to one person. For most "Business Class" and standard "First Class" travelers, the bathroom remains a shared amenity, though it is often stocked with premium toiletries, cloth towels, and higher-end finishes to distinguish it from the standard facilities found at the back of the aircraft.