diff --git a/src/modules/package/package.controller.ts b/src/modules/package/package.controller.ts
index 1571593..4047da1 100644
--- a/src/modules/package/package.controller.ts
+++ b/src/modules/package/package.controller.ts
@@ -34,6 +34,7 @@ import {
 	packageDetailParamsSchema,
 	packageDetailRequestSchema,
 	packageParamsSchema,
+	packageQuerySchema,
 	packageRequestSchema,
 } from "@/modules/package/package.schemas";
 import type {
@@ -41,7 +42,7 @@ import type {
 	PackageDetailResponse,
 	PackageResponse,
 } from "@/modules/package/package.types";
-import { wrap } from "@mikro-orm/core";
+import { wrap, type OrderDefinition } from "@mikro-orm/core";
 import { Router, type Request, type Response } from "express";
 import slugify from "slugify";
 import { ulid } from "ulid";
@@ -143,7 +144,7 @@ export class PackageController extends Controller {
 	}
 
 	async list(req: Request, res: Response) {
-		const parseQueryResult = paginationQuerySchema.safeParse(req.query);
+		const parseQueryResult = packageQuerySchema.safeParse(req.query);
 		if (!parseQueryResult.success) {
 			return this.handleZodError(parseQueryResult.error, res, "query");
 		}
@@ -151,16 +152,45 @@ export class PackageController extends Controller {
 
 		const count = await orm.em.count(Package);
 
-		const packages = await orm.em.find(
-			Package,
-			{},
-			{
-				limit: query.per_page,
-				offset: (query.page - 1) * query.per_page,
-				orderBy: { createdAt: "DESC" },
-				populate: ["*"],
-			},
-		);
+		const orderBy: OrderDefinition<Package> = {};
+		switch (query.sort_by) {
+			case "newest":
+				orderBy.createdAt = "DESC";
+				break;
+			case "oldest":
+				orderBy.createdAt = "ASC";
+				break;
+		}
+
+		let packageQueryBuilder = orm.em
+			.createQueryBuilder(Package, "_package")
+			.select(["*"], true)
+			.distinctOn(["class"])
+			.limit(query.per_page)
+			.offset((query.page - 1) * query.per_page)
+			.leftJoinAndSelect("_package.partner", "_partner");
+
+		if ("class" in query && query.class) {
+			packageQueryBuilder = packageQueryBuilder.where({ class: query.class });
+		}
+		if ("by_ideal" in query && query.by_ideal) {
+			packageQueryBuilder = packageQueryBuilder.where({ class: "by_ideal" });
+		}
+
+		switch (query.sort_by) {
+			case "newest":
+				packageQueryBuilder = packageQueryBuilder.orderBy({
+					"_package.created_at": "DESC",
+				});
+				break;
+			case "oldest":
+				packageQueryBuilder = packageQueryBuilder.orderBy({
+					"_package.created_at": "ASC",
+				});
+				break;
+		}
+
+		const packages = await packageQueryBuilder.getResultList();
 
 		return res.status(200).json({
 			data: packages.map(this.mapper.mapEntityToResponse.bind(this.mapper)),
@@ -376,10 +406,9 @@ export class PackageController extends Controller {
 		}
 
 		let outboundFlightSchedule: FlightSchedule | null = null;
-		for (const [
-			index,
-			outboundFlightId,
-		] of body.outbound_flight_ids.entries()) {
+		for (const [index, outboundFlightId] of body.outbound_flight_ids
+			.toReversed()
+			.entries()) {
 			const outboundFlight = await orm.em.findOne(
 				FlightClass,
 				{ id: outboundFlightId },
@@ -954,10 +983,9 @@ export class PackageController extends Controller {
 			orm.em.remove(outboundFlight);
 		}
 		let outboundFlightSchedule: FlightSchedule | null = null;
-		for (const [
-			index,
-			outboundFlightId,
-		] of body.outbound_flight_ids.entries()) {
+		for (const [index, outboundFlightId] of body.outbound_flight_ids
+			.toReversed()
+			.entries()) {
 			const outboundFlight = await orm.em.findOne(
 				FlightClass,
 				{ id: outboundFlightId },
diff --git a/src/modules/package/package.schemas.ts b/src/modules/package/package.schemas.ts
index a7792e9..f995f1b 100644
--- a/src/modules/package/package.schemas.ts
+++ b/src/modules/package/package.schemas.ts
@@ -1,4 +1,4 @@
-import { dateSchema } from "@/common/schemas";
+import { dateSchema, paginationQuerySchema } from "@/common/schemas";
 import { PackageClass } from "@/database/enums/package-class.enum";
 import { PackageType } from "@/database/enums/package-type.enum";
 import z from "zod";
@@ -205,6 +205,29 @@ export const packageDetailRequestSchema = z.object({
 	),
 });
 
+export const packageQuerySchema = z.intersection(
+	paginationQuerySchema,
+	z.intersection(
+		z.union([
+			z.object({
+				class: z
+					.enum(PackageClass, "Must be either 'silver', 'gold', or 'platinum'.")
+					.optional(),
+			}),
+			z.object({
+				by_ideal: z
+					.stringbool("Must be string boolean 'true' or 'false'.")
+					.optional(),
+			}),
+		]),
+		z.object({
+			sort_by: z
+				.enum(["newest", "oldest"], "Must be either 'newest' or 'oldest'.")
+				.default("newest"),
+		}),
+	),
+);
+
 export const packageParamsSchema = z.object({
 	id: z
 		.ulid("Must be ulid string.")
diff --git a/src/modules/package/package.types.ts b/src/modules/package/package.types.ts
index a844170..31e09b5 100644
--- a/src/modules/package/package.types.ts
+++ b/src/modules/package/package.types.ts
@@ -6,6 +6,7 @@ import type {
 	packageDetailParamsSchema,
 	packageDetailRequestSchema,
 	packageParamsSchema,
+	packageQuerySchema,
 	packageRequestSchema,
 } from "@/modules/package/package.schemas";
 import type { PartnerResponse } from "@/modules/partner/partner.types";
@@ -16,6 +17,8 @@ export type PackageRequest = z.infer<typeof packageRequestSchema>;
 
 export type PackageDetailRequest = z.infer<typeof packageDetailRequestSchema>;
 
+export type PackageQuery = z.infer<typeof packageQuerySchema>;
+
 export type PackageParams = z.infer<typeof packageParamsSchema>;
 
 export type PackageDetailParams = z.infer<typeof packageDetailParamsSchema>;