Quickest 2h 38min
There are 2 flights2 train companies operating 2 routes - TGV Lyria, FR-850 from BSL to DLE. The cheapest train costs $77 and is 8h 15min.
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There are 3 ways to travel from BSL to DLE. 2 flights, 2 trains and 1 by car are possible between the two areas. The by car from BSL to DLE is the cheapest. The by car from BSL to DLE is the fastest. The train operated by running from Saint-Louis to La Loye is the most convenient.
It's important to check each mode when booking your ticket so that you can find the best method for you. The cost of each type varies differently, so be sure to use Faretrotter to keep an eye out!