My husband and I will be arriving at Terminal 1 on Tuesday, May 14 at 6:55 am. On past visits, we have always taken the RER into Paris, but we have always arrived at Terminal 2 where the RER station is located. I am trying to figure out whether we are better off taking a taxi or the RER into Paris.
We are immediately heading to Rouen by train and would like to take the 10:47 am train given that the next train takes twice as long and is twice as expensive. If we take a taxi, I assume we will hit rush hour on a Tuesday morning. However, is that preferable to the time it takes to get from Terminal 1 to the RER and taking that to Saint-Lazare?
I know people recommend leaving 4 hours between arrival and taking a train from Paris, and we would have just under that if we take the 10:47 train. Do you think that is enough time? Should we book a flexible ticket or a ticket where "exchangeable conditions apply"? What is the difference?
Thank you for your help!