I tried all the US gateways and found nothing.
ORD-LHR is coming up as a $129USD base fare for $424.67 total.
Chicago O'Hare Int'l to London Heathrow , Friday 13 January
Chicago, O'Hare Int'l to Manchester, Manchester Int'l
departing: 18:35 terminal 5 arriving: 08:05 +1* terminal 1
flight no: BD706
cabin class: premium economy (Z) fare basis: ZM0IN
Manchester, Manchester Int'l to London, Heathrow
departing: 10:40 terminal 3 arriving: 11:50 terminal 1
flight no: BD587
cabin class: economy lowest fare (V) fare basis: VOWBMI
London Heathrow to Chicago O'Hare Int'l , Monday 16 January
London, Heathrow to Manchester, Manchester Int'l
departing: 07:00 terminal 1 arriving: 07:55 terminal 3
flight no: BD582
cabin class: economy lowest fare (V) fare basis: VOWBMI
Manchester, Manchester Int'l to Chicago, O'Hare Int'l
departing: 10:45 terminal 1 arriving: 13:20 terminal 5
flight no: BD705
cabin class: premium economy (Z) fare basis: ZM0IN
price information
1 Adult at USD 129.00 USD 129.00
applicable taxes and September 11th security charge USD 295.67
total cost of booking USD 424.67