JSFiddle - React, Tailwind, and code Playground

HTML

<input value="radio_2way" name="IBE1$IBE_NurFlug1$flightIBE" id="IBE1_IBE_NurFlug1_radio_2way" checked="checked" type="radio">Hin- und RĂĽckflug &nbsp;&nbsp;
<input value="radio_1way" name="IBE1$IBE_NurFlug1$flightIBE" id="IBE1_IBE_NurFlug1_radio_1way" type="radio">Einfach

JavaScript

$(document).ready(function(){
    $('input[id^="IBE1_IBE_NurFlug1"]').change(function(e){
       var $changed = $(e.target);
       alert($changed.val());
    });
});