12/12/08: Vol Air france 24 au départ de San Diego, escale à Chicago, arrivée Paris.

20/12/08: Aéroport Marignane, vol direct Air France 56, départ 11h45.

1. Le vol qu'Elaine va prendre à San Diego est direct.

My answer: True

2. Au retour, l'avion d'Elaine va faire une escale.

I'm not sure about this one because the "return" is supposed to be to San Diego, which they already asked about.

To determine the answer to question 2, let's analyze the given information:

- On 12/12/08, Elaine is taking a flight from San Diego with a layover in Chicago before arriving in Paris.
- On 20/12/08, Elaine is departing from Marignane airport on a direct flight with Air France.

Based on this information, it seems that the return flight mentioned on 20/12/08 is the flight back to the originating location, which is San Diego in this case. Therefore, there is no mention of a layover or stopover on the return flight, implying that it is a direct flight.

Therefore, the answer to question 2 is False.