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About
Book flights, manage your itinerary, and access mobile boarding passes for a seamless travel experience. Enjoy app-exclusive promotions and real-time updates for domestic travel within Korea.
✓Real-time flight booking
✓Manage bookings and cancellations
✓Mobile boarding pass
✓Multiple payment options
✓App-exclusive promotions
✓Real-time push notifications
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What's New in SUM Air
1.2.6
August 10, 2026
- Usability improvements and enhanced stability - Bug fixes
User reviews
FAQ
How do I book a flight with SUM Air?
You can book a flight directly through the SUM Air app by checking seat availability for routes like Gimpo-Sacheon and completing the booking process. The app offers real-time booking capabilities for a quick and easy experience.
Can I manage my existing bookings in the SUM Air app?
Yes, the SUM Air app allows you to manage your trips by viewing your booking history and processing cancellations directly within the application. This provides a convenient way to handle your travel arrangements.
Does SUM Air offer mobile boarding passes?
Yes, SUM Air provides a mobile boarding pass feature. You can check in via the app and use your mobile pass to board directly, skipping airport counter lines for a faster and more convenient airport experience.
What payment methods does SUM Air support?
SUM Air supports its dedicated SUM Air PAY, as well as popular payment services like Kakao Pay, Naver Pay, and Toss Pay. This offers flexibility for users to complete their bookings.
Are there any benefits to using the SUM Air app?
The SUM Air app offers app-exclusive benefits, including access to special promotions with ultra-low fares available only to app users. You will also receive real-time push notifications for important updates.
Is SUM Air suitable for business travel?
SUM Air is designed to be a fast and convenient travel option, particularly for the Seoul Metropolitan Area and Gyeongnam region, making it a good choice for busy schedules. It offers a quicker and more comfortable alternative to other transport methods.
What devices is SUM Air available on?
SUM Air is available on iPhone, iPad, and iPod. The app is designed to provide a seamless experience across these Apple devices.
How often is SUM Air updated?
The latest version of SUM Air is 1.2.4, and it was last updated on June 24, 2026. Updates typically include improvements to features and performance.