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.

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.

Vintage experience Thank you United for this Vintage experience… a direct jump to 30years back travel standard. I’m speaking about first class experience. United do not provide lounge for domestic flight, old aircraft, worse first - business class ever experienced. Food: you have to select in advance otherwise is not guaranteed onboard and you have to accept what they have. Quality is very very low. On the return we experienced 2 hours delay: after boarding, the aircraft had a technical problem. We were kept sitting: no water no food no drinks during the waiting time was offered, for 2 hours… I felt I was in third world not in US…. A good word is about the flight assistants: always very nice. I don’t recommend and I will avoid this airline company in the future.

Terrible service for premium Polaris… Terrible service for premium Polaris price. ORD to LHR for over $6000. Seat changed twice due to aircraft changes, they claim. Seems to me it’s not rocket science to have an algorithm that maintains seating choices and preferences when aircrafts change? Bag drop off also a pain. Then to the Polaris longe seated lunch? No spaces available, sorry. Terrible all around. Waste of money. Premium price for ordinary service or even poorer.

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.