SUM Air
South Korean regional airline
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SUM Air (Korean: 섬에어; RR: Seomeeo) is a South Korean regional airline based in Gangseo District, Seoul, South Korea.[4][5][6][7][8]
Founded17 November 2022[2]
Commenced operations30 March 2026[3]
Fleet size1
Parent companyMobility As A Freedom
 | |||||||
| |||||||
| Founded | 17 November 2022[2] | ||||||
|---|---|---|---|---|---|---|---|
| Commenced operations | 30 March 2026[3] | ||||||
| Fleet size | 1 | ||||||
| Parent company | Mobility As A Freedom | ||||||
| Headquarters | Gangseo District, Seoul, South Korea | ||||||
| Key people | Yongduck Choi | ||||||
| Employees | 11-50 | ||||||
| Website | https://www.sumair.kr/en | ||||||
In February 2025 the airline received an air carrier licence from Ministry of Land, Infrastructure and Transport.[6] The airline will operate ATR 72-600s one leased from Avation.[9][5][10] As of January 2026, the airline has taken delivery of its first ATR 72, registered HL5264. It will operate two more ATRs.[10]
Destinations
SUM Air currently operates services to and from China and Japan.
Fleet
As of February 2026, the SUM Air fleet consists of the following aircraft:[13]
| Aircraft | In service |
Orders | Passengers | Notes |
|---|---|---|---|---|
| ATR 72-600 | 1 | 6 | 72 | Deliveries from December 2025.[14] Order with 4 purchase rights.[15] |
