I currently have tickets from Paris to Strasbourg for later this week. With the upcoming heat wave, we are planning to skip Paris and head directly to Switzerland. We arrive at 8:35 am Tuesday and there is a direct train to Strasbourg that day at 12:55pm, so a little more than 4 hours. I can exchange our tickets now or wait till Tuesday. The current prices are about what I paid. My questions:
Are they likely to increase much between now and Tuesday?
Is 4.3 hours enough to make the train?
The ticket prices increases as capacity decreases. I would think that more people will buy tickets between now and Tuesday. 4 hours is enough time as long as the flight arrives on time
You always take a risk when you make an onward trip the same day you arrive. 4 hours should be enough but there is never a guarantee. Don't do it if you are flying American Airlines which has had a lot of work slowdowns -- Our flight was late this spring getting off and we have friends who were delayed an entire day in transit flying to Paris recently. If everything is more or less normal 4 hours should be plenty.
Four hours should be good, unless it’s the day when your flight has a problem.
I guess you just need to assess (really, guess) which eventuality you would consider worst: not buying the tickets, being able to make the train, and seeing if they have gone up substantially in cost; or buying the tickets, not making the train, and having to buy (additional) walk-up tickets that day. (I mean, I know this is the exact question you’re wrestling with, so I guess my “advice” is pretty moot!!).