The cheapest Lyon to Halifax return flight on the radar right now is €592, flying with British Airways + WestJet via one or more connections. It covers departures in May 2027, and every dated link below opens that exact LYS–YHZ search on Skyscanner. Across 47 recorded checks it has ranged between €394 and €667. Our sampling points to May 2027 as the cheapest month to fly Lyon to Halifax.
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 Lyon? We track 42 other departure cities for Halifax, 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 Lyon to Halifax is often still worth booking within a day or two of the fare we found.