About BX
Air Busan operates as a low-cost carrier anchored firmly in South Korea's second city, with PUS — Gimhae International — serving as its nerve center. From that single hub, the airline pushes out 28 routes, making it one of the more concentrated regional networks in Northeast Asia. The overall map spans 72 non-stop routes across 33 airports, covering a total network distance of just over 124,500 kilometers. Geographically, the focus is tight: Korea, Japan, China, Vietnam, and Thailand account for virtually everything the airline flies, which tells you exactly what kind of traveler BX is built for.
Why fly BX?
If you're moving between South Korea and Japan, BX earns serious consideration. With 11 routes into Japan alone, the frequency and choice out of PUS often beats what you'd find on a full-service carrier charging considerably more. The airline also connects Busan to Bali's Ngurah Rai — the DPS-PUS pairing stretches 5,095 kilometers, the longest single route in the network, which is a meaningful haul for a low-cost operation. For travelers who find ICN exhausting to get through, flying into or out of Busan cuts the airport stress considerably. The route coverage into Vietnam and Thailand adds useful regional flexibility, particularly if you're building a multi-stop itinerary across Southeast Asia without wanting to double back through Seoul every time.
BX hub airports
- PUS Busan — 28 BX routes from Republic of Korea
- ICN Seoul — 6 BX routes from Republic of Korea
- CJU Jeju — 3 BX routes from Republic of Korea
- CXR Nha Trang — 2 BX routes from Viet Nam
- NRT Tokyo — 2 BX routes from Japan
Top destination countries on BX
- Republic of Korea — 40 BX routes
- Japan — 11 BX routes
- China — 5 BX routes
- Viet Nam — 3 BX routes
- Thailand — 2 BX routes
- Philippines — 2 BX routes
- Taiwan — 2 BX routes
- Indonesia — 1 BX routes
Tips for booking BX
Book directly through BX's own channels when you can — third-party sites sometimes mangle the ancillary fee structures, and on a low-cost carrier those extras add up fast. Because PUS is the dominant hub with 28 routes against ICN's six, connections routed through Gimhae will generally offer you more onward options within the network. The Jeju base at CJU handles only three routes, so don't build a tight itinerary around it. If you're originating from Southeast Asia, the Nha Trang hub at CXR covers just two routes, which makes it a spoke rather than a reliable connection point. Check baggage allowances at booking — low-cost carriers in this region vary wildly on what's included at base fare.
Frequently asked questions about BX
Where does BX fly?
BX operates 72 routes primarily serving East Asia, with a strong focus on the Republic of Korea, Japan, and China. The airline connects major cities across these regions, making it ideal for travel within Northeast and East Asia.
What is BX's main hub airport?
BX's main hub is Busan (PUS), located in South Korea. This strategic hub serves as the primary connection point for the airline's extensive network across East Asia.
What type of airline is BX?
BX operates as a regional carrier focused on East Asian markets, offering service to key destinations across Korea, Japan, and China. The airline's network structure suggests a focus on regional connectivity rather than long-haul international routes.
When should I book a BX flight?
For the best fares, book regional flights 2-4 weeks in advance, though prices may vary seasonally depending on travel to popular destinations like Seoul, Tokyo, or Shanghai. Checking multiple fare classes and comparing mid-week flights can help you find better rates.
What are BX's baggage and check-in policies?
Standard baggage allowances and check-in procedures apply, though specific limits depend on your fare class and route. It's recommended to check BX's website or contact the airline directly for detailed baggage policies, as regional carriers may have varying allowances.