It is connected with an ancient trade route passing through swamps and marshes in today's territory of the village.

They were bridged by wooden beams and logs by the so-called mostors or mościorze, who gave the village its name.

The highest point is a contour line below the top of the Severka mountain at 945 m (3,100 ft) above sea level.

According to the censuses conducted in 1880–1910 the population of the municipality grew from 1,959 in 1880 to 2,318 in 1910 with a majority being native Polish-speakers (growing from 98% in 1880 to 98.5% in 1910) accompanied by German-speaking (at most 2% in 1880) and Czech-speaking people (at most 0.3% in 1900).

Following the Munich Agreement, in October 1938 together with the Trans-Olza region it was annexed by Poland, administratively adjoined to Cieszyn County of Silesian Voivodeship.

On 25–26 August 1939 a group of German Abwehr armed agents attacked the rail station in Mosty.

[7] The I/11 road (part of the European route E75) runs through Mosty u Jablunkova and continues to Slovakia.