10th January update: Many of these fares have disappeared, including the fare in the first example link below. However, you can then change the calendar dates after clicking on the link and browse for other £804 flights – I found them all the way through to August 2015.
I’m guessing this is a mistake fare and not a promotion. On that basis, don’t call the airline to check validity etc. Airlines usually honour these fares and even if they don’t you would get a full refund. Thanks to Business Traveller contributor onajetplane for spotting this.
Here is a link to an example flight: https://www.google.co.uk/flights/#search;f=BFS,BHD;t=EWR;d=2015-03-28;r=2015-04-01;sc=b
You can then change the calendar dates and browse for other £804 flights – I found them all the way through to August 2015.
I also tried Belfast to Los Angeles (stopover in Newark) and found this was only £1070:
I’m not a fan of United although I’d did like the Continental Business First product. Now the airlines have merged, let’s hope that the service is more Continental than United. Nonetheless, £804 return is a great deal, especially if you are collecting Star Alliance status and points.