Would a 15-Day Swiss Pass be worth it?

Hi realimpressedkd! A 15 day Swiss Pass is definitely the most convenient solution for your two week stay in Switzerland. It allows free travelling in trains, buses and boats throughout the country, so all train trips you mention would be for free and you don't have to buy any further tickets for these trips. Mountain trains and cable cars (such as the one to the Jungfraujoch) are discounted and do require the purchase of additional discounted tickets. You seem to be travelling with 2 or more people, which means that you can purchase a (cheaper) Swiss Saver Pass.

Whether the Swiss Saver Pass will ultimately prove to be cost effective, depends on the exact trips you'll be making. If you have additional plans, or if want to make some other long trains journeys, the Swiss Saver Pass would be an economical solution. If you'll only be making the trips you mention, however, a Swiss Half Fare Card is cheaper. This does require you to buy discounted tickets for all trips though and therefore isn't as convenient as a Swiss Saver Pass.

Only an exact calculation of the exact trips you'll be making (including the ones from Interlaken/Lauterbrunnen) will give a definitive answer as to which pass is best. I hope that the guideluines I mentioned above will help you decide!

Kind regards,