Great airline and the website is top notch. United isn't perfect but then again, what airline isn't? I was a faithful flyer based on my travel in a few destinations. Flew ~2-4 one ways each week for a few years. Always booked directly through the website. When you hit status, its great! Unlike some other airlines, they'll never leave a first class seat empty. They'll fill it with those that not only have the most segments, but highest revenue profile (from what I saw). It asks a few more questions than others (Southwest) but once you get into the groove of using it, you barely notice the extra clicks. Not a huge deal. Their mobile apps were sketchy back in 2011-2013 but the recent updates are great! Never hit a problem with it since ~2015.

Staff have a bad and unhelpful attitude I had a flight booked from heathrow to cancun which went via Houston. The staff were unhelpful and rude they were more interested in feeding themselves.when we got to Houston for an internal transit it took two hours to get through passport control and almost missed the connecting flight.

They need to do better Their level of service and quality of product need to improve. They can't rely on a business model that everyone else is using and perform worse than their competitors. They either need to develop better products and services, provide more value for customers, or else. Horrible experience on my last trip. They cancelled my return ticket saying that I was a no-show for the outbound flight although I sat in my seat in the outbound flight and even gate-checked a bag. They wasted more than two hours of my valuable time during my trip and caused a lot of stress. They didn't even know how this happened. No one apologized to me for their mistakes as of date. Their agents thought I was lying or I was the one who made the mistake. Incredible.

United is costing me $244 I won't forget On my way back from a business travel from Denver CO to London UK I had to pay a fortune to select one of the few row seats still available, because I like to be able to stand up and go to the toilet without bothering anybody to let me through. When I try to locate the past trip and get the receipt for the seat selection, United website simply throws a series of schizophrenic errors. Finding past trips? Impossible to do so using the confirmation number and last name. It doesn't matter if confirmation number meets criteria, or if I enter the last name exactly the way it is spelled in the ticket, it doesn't find it. Finding receipts? The website finds none, not even of the entire flight ticket.

Stranded in Chicago and had to get a rental car, United never took responsibility United said I would be stranded in Chicago for 2 days, no hotel accommodations, sleep and hang out in the airport for 2 days. I had to be in KC for work, so I got a rental car and drove myself to KC. United declined to cover the rental car, and the whole experience was a disaster of customer service. Fly any other airline.