SUM Air

Fly Light and Easy with SUM Air!
From flight bookings to mobile boarding passes and simple payments—start your journey faster and lighter with the SUM Air App. Experience a new way of flying that connects every corner of Korea.

[Key Services]
Flight Booking & Management
- Real-time Booking: Check seat availability for the Gimpo-Sacheon route and book instantly.
- Manage Your Trip: View your booking history or process cancellations easily within the app.
- Flight Status: Access real-time flight schedules and arrival/departure information.

Fast & Convenient Boarding
- Web Check-in & Mobile Boarding Pass: Skip the airport counter lines. Check in via the app and board immediately with your mobile pass.
- Additional Services: Select your preferred seat or purchase extra baggage allowance with just one click.

Simple Payment & Login
- SUM Air PAY: Support for our dedicated SUM Air PAY, as well as Kakao Pay, Naver Pay, and Toss Pay.
- 3-Second Login: Sign up instantly using your Kakao, Naver, or Google accounts.

App-Exclusive Benefits
- Special Promotions: Be the first to access ultra-low fares available only to app users.
- Real-time Push Notifications: Get instant updates on booking status, check-in reminders, and weather-related flight changes.

[A Special Journey with SUM Air]
- Business Success: The fastest way to travel between the Seoul Metropolitan Area and Gyeongnam for your busy schedule.
- Start Your Adventure: Arrive comfortably at Sacheon Airport, the gateway to the beautiful South Coast.
- A Lifeline for Locals: Experience a premium transportation service that is faster and more comfortable than the KTX.

[Access Permissions]
SUM Air only requests the minimum permissions necessary to provide our services.
- (Optional) Notifications: Used for booking confirmations, check-in reminders, flight status, and promotional benefits.

[Customer Support]
- Website: https://www.sumair.kr
- Reservation Center: 1877-4325 (09:00 - 18:00)