How to fly from Germany (FRA) to Mexico

In order to fly from Frankfurt to Mexico City there are several airlines offering flights:

I. Direct Flights
There´s only Lufthansa that is offering a direct flight to Mexico City. The flight takes about 12 hours. If you book early then you can get a flight from 750 euros/person (including return). In general, however, this flight option is expensive (above 1000 euros/person).

II. Flight with stop-over
There are some airlines that flight from Frankfurt to Mexico doing a stop over. These ones are:
-Iberia (stopover in Madrid)
-KLM (stopover in Amsterdam)
-British Airways (stopover in London)
-Air France (stopover in Paris)
-American Airlines (stopover in Dallas)
-Delta (Atlanta)
-United Airlines (Chicago/Houston TX/Newark NJ)
It is important to consider that with a stopover the flight can take from 14-18 hours.

You can check out some options in the following websites:
www.kayak.de
www.skyscanner.de 
www.opodo.de