The cheapest London to Antigua return flight on the radar right now is £654, flying with Virgin Atlantic non-stop. It covers departures in February 2027, and every dated link below opens that exact LHR–ANU search on Skyscanner. Across 71 recorded checks it has ranged between £488 and £2,980. Our sampling points to February 2027 as the cheapest month to fly London to Antigua.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from London? We track 43 other departure cities for Antigua, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since London to Antigua is often still worth booking within a day or two of the fare we found.