IATA Code

BX

ICAO Code

CST

Country
Norway
Routes

32

Last updated: January 22, 2025

About

Air Busan is a South Korean low-cost carrier and a subsidiary of Asiana Airlines, one of Korea's two major full-service airlines. Founded in 2007 and headquartered in Busan, Air Busan has grown to become a leading regional low-cost carrier, operating a fleet of approximately 30 Airbus A320 and A321 aircraft serving domestic and international destinations.

The airline operates from its primary hub at Busan Gimhae International Airport (PUS), South Korea's second-busiest airport, with a secondary hub at Seoul Gimpo Airport (GMP). Air Busan focuses on connecting Busan and other Korean cities to popular destinations across Japan and Southeast Asia, catering primarily to leisure travelers.

Unlike ultra-low-cost carriers, Air Busan includes one checked bag in the base fare and offers a more generous carry-on allowance. The airline's coral and orange livery reflects the vibrant coastal character of its Busan home base. As an Asiana subsidiary, passengers can earn Asiana Club miles on flights, though Air Busan also operates its own FLY & STAMP loyalty program.

Hubs & Focus Cities

Airports where Coast Air operates 5+ routes

Network

19 airports served

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Observed Flights

Callsigns tracked for Coast Air (CST) - 1 unique callsigns observed

Baggage Policy

Carry-On Allowance

All Fares:

  • 1 cabin bag: 55 x 40 x 20 cm (22" x 16" x 8")
  • 1 personal item: Small handbag, laptop bag, or camera case
  • Combined weight: 10 kg maximum (22 lbs)
Fare Personal Item Cabin Bag Combined Weight
All fares Free Free 10 kg total

Important: The 10 kg limit applies to both items combined. Air Busan weighs bags at check-in counters and boarding gates. Excess carry-on will be checked at additional cost (KRW 20,000-40,000 depending on route).

Checked Baggage

Free Checked Baggage by Fare:

Route Type Fly Fare Fly Bag Fare Max Size
Domestic 1 x 15 kg 1 x 20 kg 203 cm linear
International 1 x 15 kg 1 x 20 kg 203 cm linear

Additional Bag Fees:

Route Pre-Booked Online At Airport
Domestic KRW 20,000 ($15) KRW 25,000 ($19)
International (Japan, Asia) KRW 40,000 ($31) KRW 50,000 ($38)

Overweight & Oversized Fees

Overweight Fees (per piece):

Weight Range Domestic International
16-23 kg (36-50 lbs) KRW 20,000 ($15) KRW 30,000 ($23)
24-32 kg (53-70 lbs) KRW 40,000 ($31) KRW 60,000 ($46)
Over 32 kg Not accepted Not accepted

Oversized Fees:

Size Range Fee
159-203 cm linear (63-80 in) KRW 50,000 ($38)
Over 203 cm Cargo only

Special Items

Item Domestic Fee International Fee Notes
Golf clubs KRW 20,000 ($15) KRW 40,000 ($31) Max 15 kg, counts as 1 piece
Skis/Snowboard KRW 20,000 ($15) KRW 40,000 ($31) Includes boots
Surfboard KRW 30,000 ($23) KRW 50,000 ($38) Max 2.5m length
Bicycle KRW 50,000 ($38) KRW 50,000 ($38) Must be boxed, max 32 kg
Musical instruments Varies Varies Small in cabin; large checked
Car seat Free Free Gate-check available
Stroller Free Free Gate-check available
Wheelchair Free Free Priority handling

Fees as of January 2025. Verify at airbusan.com/baggage before traveling.

In-Flight Experience

Air Busan operates an all-economy configuration with a focus on efficient, friendly service reflecting Korean hospitality standards.

Aircraft Fleet

  • Airbus A320: 174 seats (short-haul domestic and Japan)
  • Airbus A321: 195 seats (longer routes to Southeast Asia)

All aircraft feature the same interior configuration for operational flexibility.

Economy Seats

Feature A320 A321
Configuration 3-3 3-3
Seat pitch 29-30" (74-76 cm) 29-30" (74-76 cm)
Seat width 17.5" (44 cm) 17.5" (44 cm)
Recline 3" 3"
Power USB on newer aircraft USB on newer aircraft

Seat Categories

Type Location Fee (Online)
Standard General cabin KRW 3,000-5,000 ($2-4)
Forward Rows 1-5 KRW 6,000-10,000 ($5-8)
Extra Legroom Exit rows KRW 12,000-25,000 ($9-19)
Window/Aisle preference Various KRW 4,000-6,000 ($3-5)

Entertainment

  • No seatback screens on any aircraft
  • No streaming entertainment system
  • Bring your own device and content
  • Short flight times (Busan-Fukuoka: 55 minutes; Busan-Tokyo: 2 hours)

Food & Beverage

Included:

  • Complimentary water
  • Light snack (cookie or small treat) on most flights

For Purchase:

  • Hot meals (Korean cuisine): KRW 8,000-15,000 ($6-12)
  • Snacks and light bites: KRW 3,000-6,000 ($2-5)
  • Beverages: KRW 2,000-5,000 ($2-4)
  • Alcoholic beverages: KRW 5,000-8,000 ($4-6)

Pre-Order Meals:

  • Available online at least 24 hours before departure
  • Better selection than onboard
  • Korean options include bibimbap, gimbap, and ramyeon
  • Recommended for dietary restrictions

Onboard Purchases:

  • Duty-free shopping on international flights
  • Payment: Korean Won cash, major credit cards