Whooops!
I've just pulled this off the Swiss.com site:
Flight no.
Company
from
to
Departure
Arrival
LX 465 SWISS London (LCY) Zurich 17:30 / 03APR 20:10 / 03APR
LX 094 SWISS Zurich Buenos Aires (EZE) 22:15 / 03APR 08:40 / 04APR
LX 095 SWISS Buenos Aires (EZE) Zurich 10:35 / 02MAY 06:20 / 03MAY
LX 450 SWISS Zurich London (LCY) 07:00 / 03MAY 07:40 / 03MAY
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Below you will find the lowest fare for the flights you selected and the travel class for each flight segment in brackets ( ).
Lowest fare (Business, Business, Business, Business)
Passengers
Price ex. tax
Price inc. tax
No.
Amount GBP
Amount EUR
Adults 234.00 GBP 325.65 GBP 1 325.65 GBP 518.80 EUR
Sum total 325.65 GBP 518.80 EUR
Bargain!!