What is the cost of a train ticket round trip from istambul to Sofia Bulgaria?

As of my last database update in September 2021, there were no direct train services from Istanbul, Turkey to Sofia, Bulgaria. However, there are international trains services between Istanbul and Dimitrovgrad, Bulgaria. From Dimitrovgrad, passengers can transfer to a connecting bus service (or a slower local train with a change of train at Stara Zagora) to Sofia. Please note that train schedules and fares may change, so it's best to check with the train operating companies or a reliable booking platform for the most up-to-date information on train services, schedules, and fares. Here's an overview of the general cost and availability as of September 2021:

Train from Istanbul to Dimitrovgrad:

* Fare: Approximately €20-€25 one way

* Travel time: Approximately 6-7 hours

Bus from Dimitrovgrad to Sofia:

* Fare: Approximately €5-€10 one way

* Travel time: Approximately 2-3 hours

Total Cost (round trip):

* Approximately €50-€70 (Depending on the specific dates of travel and the availability of discounts or special offers).

Note: It's worth noting that due to the popularity and demand for the Istanbul to Sofia route, it's advisable to book your tickets in advance, especially if you're traveling during peak season. You can check reputable travel websites or platforms for the latest schedules and fares and book your journey conveniently online.