Technically, United Polaris is only available on long-haul international flights. However, you can fly in a lie-flat seat and get premium business class service on four premium transcontinental routes: Newark (EWR) to Los Angeles (LAX) Newark (EWR) to San Francisco (SFO)

While United Polaris is primarily the flagship long-haul international Business Class product, in 2026, you can also experience it on select "Premium Transcontinental" domestic routes. These typically include high-traffic lanes like Newark (EWR) to Los Angeles (LAX) or San Francisco (SFO). On these specific flights, United uses wide-body aircraft (like the Boeing 787 or 777) featuring the actual Polaris lie-flat pods. However, there is a catch: while you get the Polaris seat, you may not get the full Polaris service (like the multi-course international dining) or access to the exclusive Polaris Lounges, which are generally reserved for those with an international boarding pass. For all other standard domestic flights in 2026, the premium cabin is branded as "United First," which offers a wider recliner seat rather than the lie-flat privacy pod found in the true Polaris experience.