If  you wanted to change the display pattern of the currency in the single trip  pages then you can do so by activating the child theme.

Please refer to below given link to know how you can create and activate the child theme:

Child Theme

After activating the child theme in your child theme’s  functions.php add below given code.

 

function wp_travel_customize_sale_price_display( $s, $c, $d ) {
  return sprintf( esc_html__('%1s %2s', 'wp-travel' ), number_format( $d , 2 ), $c );
}
add_filter( 'wp_travel_itinerary_sale_price', 'wp_travel_customize_sale_price_display', 99, 3 );


function wp_travel_customize_price_display( $s, $c, $d ) {
  global $wp_travel_itinerary;
  if ( $wp_travel_itinerary && $wp_travel_itinerary->is_sale_enabled() ) {
  	 return  sprintf( esc_html__(' %1s %2s', 'wp-travel' ), number_format( $d , 2 ), $c );
    // return $s;
  }
  return sprintf( esc_html__('%1s %2s', 'wp-travel' ), number_format( $d , 2 ), $c );
}
add_filter( 'wp_travel_itinerary_price', 'wp_travel_customize_price_display', 99, 3 );



Before Adding code:

 

After adding code: