Event Tickets Plus v4.6+ - WooCommerce Tickets: Keep all but the lowest-priced WooTicket for each event as Hidden visibility. Change the least-expensive to Visible (Shop and search results). Filter Visible tickets to have a post title of "Tickets for {Event_Name}" while in Shop or Search.

functions.php

<?php

/*
 * Event Tickets Plus v4.6+ - WooCommerce Tickets: Keep all but the lowest-priced
 * WooTicket for each event as Hidden visibility. Change the least-expensive to
 * Visible (Shop and search results).
 *
 * This snippet only works with WooCommerce 3.0.0+.
 * We could do the same logic on a different action, like when a ticket is
 * deleted or an attendee is created / ticket is sold, but this probably isn't
 * necessary. If the Shop displays $5 ticket and they go to the single event
 * page and see $5 tickets are sold out, they could still buy a $10 ticket (a
 * bit of bait and switch). Plus, once a new WooTicket is added or an existing
 * WooTicket is created), it'll update to be the next-lowest-priced ticket that
 * is still in-stock. As with all snippets, customize to your own needs...
 *
 * @link https://gist.github.com/cliffordp/c012f2945a22867a3af2c2878e06fffd
 *
 * @see cliff_filter_wooticket_titles_in_shop_and_search
 *
 * @param int                           Post ID of post the ticket is tied to
 * @param Tribe__Tickets__Ticket_Object Ticket that was just saved
 * @param array                         Ticket data
 * @param string                        Commerce engine class
*/
add_action( 'event_tickets_after_save_ticket', 'cliff_one_wooticket_visible_per_event', 10, 4 );
function cliff_one_wooticket_visible_per_event( $post_id_attached_to, $ticket, $ticket_raw_data, $commerce_engine_class ) {
	if ( 'Tribe__Tickets_Plus__Commerce__WooCommerce__Main' !== $commerce_engine_class ) {
		return;
	}

	// Get all this event's tickets
	$event_all_tickets = Tribe__Tickets__Tickets::get_all_event_tickets( $post_id_attached_to );

	// Ignore everything that's not a WooTicket
	$event_all_wootickets = array();

	foreach ( $event_all_tickets as $each_ticket ) {
		if ( 'Tribe__Tickets_Plus__Commerce__WooCommerce__Main' == $each_ticket->provider_class ) {
			$event_all_wootickets[] = $each_ticket;
		}
	}

	// Get the least-expensive, in-stock WooTicket from all this event's WooTickets
	$event_wootickets_in_stock = array();

	foreach ( $event_all_wootickets as $each_ticket ) {
		if ( $each_ticket->is_in_stock() ) {
			$event_wootickets_in_stock[] = $each_ticket;
			break;
		}
	}

	// cannot use wc_list_pluck() because it skips "0" values
	$available_ticket_prices = array();

	foreach ( $event_all_wootickets as $each_ticket ) {
		$available_ticket_prices[] = (int) $each_ticket->price;
	}

	$least_expensive_ticket_price = min( $available_ticket_prices );

	$least_expensive_wooticket = '';

	foreach ( $event_all_wootickets as $each_ticket ) {
		if ( $least_expensive_ticket_price === (int) $each_ticket->price ) {
			$least_expensive_wooticket = $each_ticket;
			break;
		}
	}

	// and set it to Visible
	if ( is_object( $least_expensive_wooticket ) ) {
		$product = wc_get_product( $least_expensive_wooticket->ID );
		$product->set_catalog_visibility( 'visible' );
		$product->save();
	}

	// then set all other WooTickets for this event (in-stock or not) to Hidden
	foreach ( $event_all_wootickets as $wooticket ) {
		if ( $least_expensive_wooticket->ID !== $wooticket->ID ) {
			$product = wc_get_product( $wooticket->ID );
			$product->set_catalog_visibility( 'hidden' );
			$product->save();
		}
	}
}

/**
 * Event Tickets Plus - WooCommerce Tickets: Filter Visible tickets to have a
 * post title of "Tickets for {Event_Name}" while in Shop or Search.
 *
 * We filter the ticket name in Shop and Search so that an event with 2 tickets
 * (e.g. Lower-Level and Balcony) but only 1 Visible (e.g. Balcony) does not
 * appear simply as "Balcony" in the Shop and then customers are looking around
 * within the Shop for a different type of ticket for the event (e.g. Lower-
 * Level).
 *
 * @link https://gist.github.com/cliffordp/c012f2945a22867a3af2c2878e06fffd
 *
 * @see  cliff_one_wooticket_visible_per_event
 *
 * @param $title
 * @param $id
 *
 * @return string
 */
add_filter( 'the_title', 'cliff_filter_wooticket_titles_in_shop_and_search', 10, 2 );
function cliff_filter_wooticket_titles_in_shop_and_search( $title, $id ) {
	if (
		! is_admin()
		&& function_exists( 'is_shop' )
		&& function_exists( 'wc_get_product' )
		&& (
			is_shop()
			|| is_search()
		)
		&& wc_get_product( $id )
		&& class_exists( 'Tribe__Tickets_Plus__Commerce__WooCommerce__Main' )
	) {
		// Search for the non-deprecated custom field.
		$event_id = (int) get_post_meta( $id, Tribe__Tickets_Plus__Commerce__WooCommerce__Main::ATTENDEE_EVENT_KEY, true );
		if ( ! tribe_is_event( $event_id ) ) {
			// Search for the deprecated custom field, from Tribe__Tickets_Plus__Commerce__WooCommerce__Main::$event_key
			$event_id = (int) get_post_meta( $id, '_tribe_wooticket_for_event', true );
		}

		if ( tribe_is_event( $event_id ) ) {
			$title = sprintf( 'Tickets for Event: %s', esc_html( get_the_title( $event_id ) ) );
		}
	}

	return $title;
}