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.

First Flight, Last Flight. Aside from the recent scandal United Airlines is literally the worst airline I've ever flown with. The only impressive this is how consistently bad they are at literally every area that constitutes a good flight experience. Incompetence like that takes dedication. Hats off to you United, I will never be flying with you again.

I stupidly booked flights from London… I stupidly booked flights from London to LAX in March 2020, trusting that I'd be able to easily re-book. Well the pandemic hit and I converted my flights to 'future flight credit'. Can I book a new flight with these? - simple answer is no - at least not via the website and the phone is useless. United customer service is non-existent.

Our flight was cancelled after sitting… Our flight was cancelled after sitting 8 hours at Newark Airport due to plane issues. United could not get us out on another flight for 2 days. We had to drive 8 hours home that night because we had to be home. The issue is they would not reimburse us for our car rental to get home. They offered us vouchers. Why would we spend more money with someone who does not take care of their customers. Our request was for an expense far cheaper than staying in Newark for 2 days. Never again with United. First and last experience

Awful Booking Process and Customer Service I haven't even flown with United yet, but so far they've made me re-book my flights 3 times, and there's still another 3 months before I fly. I booked a return flight to the US from the UK in January, I went on-line in March to check some details to find that my flights had been changed and my seat upgrades had been cancelled with no refund. So I re-upgraded and chose new seats, a month later I checked again, the flights had changed again, still no warning or refund, so yet another, re-select the seats and pay the upgrade fee again, 1 month later, same thing. Each time I re-upgrade my seats my bank charges me £1.50 for each transaction (United put each seat on each flight through individually from the US whereas the original booking was taken from the UK). In terms on transaction costs alone I'm down around £18, if you add to that the fact that not a single cancelled seat hasn't been refunded then it's around £250. I feel a small claims court action coming on.