Moderator, Iberia Airlines, Airport Lounges, and Ambassador, British Airways Executive Club
Join Date: Feb 2010
Programs: BA Lifetime Gold; Flying Blue Life Platinum; LH Sen.; Hilton Diamond; Kemal Kebabs Prized Customer
Posts: 63,766
Have a look at BA.com Find our cheapest fares (or the App equivalent), but you're probably looking at
LGW-JER, EDI and GLA (which can be combined as a back to back
LGW-Spanish, French destinations + AMS and GVA (BGY from September)
LHR-LUX
And also check the Weekend day return thread too.