Air Seoul
A South Korean low-cost carrier operating domestic and short-haul international services, primarily from Seoul Incheon, with an all-Airbus A321 fleet.
About Air Seoul
Air Seoul is a South Korean low-cost airline founded in 2015 and launched scheduled services in 2016. It was established as a wholly owned subsidiary of Asiana Airlines, initially taking over several thinner international routes from its parent. Asiana remains its direct shareholder, while Korean Air became the ultimate controlling group after acquiring Asiana. Air Seoul operates as a distinct budget brand focused on price-sensitive leisure travel.
Air Seoul’s principal hub is Incheon International Airport, the main international gateway serving Seoul. Its compact network concentrates on short- and medium-haul routes within Northeast Asia and the western Pacific, with Japan forming an especially important market. Services also reach Vietnam, mainland China and Guam. The airline operates a domestic link between Seoul Gimpo and Jeju, although schedules and frequencies may change with seasonal demand.
The carrier operates an all-Airbus A321 fleet, simplifying maintenance and crew training while providing more capacity than many smaller narrow-body aircraft. Air Seoul uses an economy-only configuration, with no traditional business-class cabin. Some seats offer additional legroom or preferred positioning for an extra charge. Meals, checked baggage and seat selection may depend on the fare purchased or require separate payment, consistent with its low-cost model.
Air Seoul is not itself a member of Star Alliance, SkyTeam or Oneworld, even though its parent Asiana Airlines has historically participated in Star Alliance. The airline does not advertise a conventional mileage-based frequent-flyer programme with award redemptions and elite tiers. Customers can instead register as website members to manage bookings and access selected promotions or partner offers, but these benefits should not be treated as an airline mileage scheme.
A notable strength is the relatively roomy feel that an A321 can provide on short regional flights, particularly when compared with smaller aircraft used by some budget competitors. The trade-off is a limited network and fewer daily frequencies than larger Korean carriers, which can reduce alternatives during disruptions. Travellers should also compare the complete trip price because baggage, seat assignment and onboard purchases can materially increase the cheapest advertised fare.
Good to know
Flying with Air Seoul — what to expect
Check Your Fare
The lowest fares may exclude checked baggage, advance seat selection and other extras. Review the fare conditions and total price before paying.
Baggage Options
Checked-baggage entitlement varies by fare, and buying an allowance before departure is generally more practical than paying at the airport. Confirm the current rules for your specific booking.
Economy-Only Fleet
Air Seoul operates Airbus A321 aircraft in an economy-only layout. Preferred or extra-legroom seats may be available for an additional charge.
Incheon Connections
Most international flights use Seoul Incheon, where transfer times can be affected by terminal procedures and security checks. Leave a generous buffer if connecting on separate tickets.
Limited Frequencies
Some routes operate only on selected days or vary seasonally. Check the schedule carefully because same-day alternatives may be limited if a flight changes.
Onboard Purchases
Complimentary inclusions are more limited than on a full-service airline. Check in advance whether food or drinks are included, available for preorder or sold onboard.
Route network
Popular routes operated by Air Seoul
Notable destinations on Air Seoul's network.
RSSeouldirectRSJejudirectRSTokyodirectRSOsakadirectRSFukuokadirectRSTakamatsudirectRSYonagodirectRSDa NangdirectRSNha TrangdirectRSZhangjiajiedirectRSGuamdirectDestination list is indicative of Air Seoul's network; see the airline's official route map for its complete, current schedule.
More from South Korea
Other airlines based in South Korea
FAQ
Air Seoul — frequently asked questions
Quick answers to the details travellers usually check first, from codes and locations to the practical basics that help with planning.
8 common questions
- Incheon International Airport is by far Air Seoul’s principal departure airport for international flights. Gimpo International Airport is its secondary Seoul base for domestic Jeju services.
- Air Seoul permits cabin baggage subject to its current size, weight and quantity limits. Check the allowance shown on the airline’s website and your booking confirmation before travel, as oversized or overweight bags may need to be checked for a fee.
- Air Seoul operates a compact network from South Korea to destinations in Japan, Vietnam, mainland China and Guam, alongside domestic service to Jeju. Routes and frequencies can change seasonally.
- Lower fares are often available when booking outside Korean and destination-country holidays and travelling midweek or during quieter seasons. Compare the final price after adding baggage, seats and other required extras.
- Originfacts compares live fares from hundreds of airlines and travel agencies via its partner Travelpayouts. Originfacts never adds a fee to the prices displayed.
- Air Seoul’s primary hub is Incheon International Airport, serving the Seoul metropolitan area. Its domestic Seoul–Jeju service uses Gimpo International Airport.
- The Incheon–Nha Trang route, using Cam Ranh International Airport, is generally Air Seoul’s longest scheduled service. Network changes can alter this distinction, so verify the current timetable when booking.
- Air Seoul serves roughly a dozen airports across its current network, including its Seoul departure airports. The precise total varies as seasonal services are added, suspended or resumed.