The cheapest Lisbon to Mexico City return flight on the radar right now is €954, flying with United via one or more connections. It covers departures in November 2026, and every dated link below opens that exact LIS–MEX search on Skyscanner. The price we usually record on this route is €824. Across 101 recorded checks it has ranged between €637 and €1,660. Our sampling points to November 2026 as the cheapest month to fly Lisbon to Mexico City.
Every fare here is re-confirmed against Skyscanner automatically, and each one is stamped with the moment it was last checked, so you can see how fresh it is instead of taking it on trust. Not flying from Lisbon? We track 60 other departure cities for Mexico City, listed at the foot of this page.
Fares move quickly. If this Lisbon to Mexico City price has gone by the time you search, shift the dates a day or two either side, because the same route is often still cheap just next door.