The Short Answer

  • The airline Koreans want to fly most is Korean Air (40.4%) — a lead over second-place Asiana (9.8%) that's more than 4x.
  • But the actual satisfaction winners are different — among full-service carriers it's Emirates, and among LCCs it's Air Premia (three years running).
  • In the government's official evaluation (Ministry of Land, Infrastructure and Transport), Korean Air scored 6.07 out of 7 — the only Korean carrier to crack the 6-point barrier.
  • Starting December 2026, Asiana operates under the Korean Air brand — this is the year Korea's aviation map gets redrawn.

South Korea is a country of 50 million people with 10 homegrown airlines duking it out — a fiercely competitive aviation market you don’t see in many places. So which airline do Koreans actually like? Here’s the fascinating thing the latest data reveals: the brand people aspire to fly and the airline they genuinely enjoy after flying it aren’t the same. I dug into three datasets — Consumer Insight’s survey (published January 2026), the Ministry of Land, Infrastructure and Transport’s Air Transport Service Evaluation (April 2026), and the brand reputation index — and the picture that emerges is more nuanced than you’d expect.

40.4%
Korean Air preference share — "airline I want to fly" — dominant #1 (Consumer Insight)
6.07/7
Ministry of Land, Infrastructure and Transport user satisfaction — Korean Air #1, the only 6-point-range score
3 years
Air Premia — #1 in LCC satisfaction (684/1000 points), three years straight
7th
Skytrax 2025 World Airline Rankings — Korean Air, 5-Star rating

Which Airline Do Koreans Most Want to Fly?

Korean Air. And it’s not even close. Every September, travel research outfit Consumer Insight runs a massive travel satisfaction survey (2,418 FSC passengers and 2,930 LCC passengers), and the “which airline do you want to fly” preference numbers look like this:

Consumer Insight Preference Survey: Korean Air takes 40.4% — a landslide. Add second-place Asiana Airlines (9.8%) and the two full-service flag carriers together capture more than half of all preference votes. The top LCC picks were also overwhelmingly Korean carriers.

For Koreans, Korean Air isn’t just an airline — it’s something closer to a national institution. In the Korea Corporate Reputation Research Institute’s May 2026 big-data brand reputation analysis, Korean Air topped the index at 21.88M, followed by Hanjin KAL, Asiana Airlines, Jeju Air, Jin Air, T’way Air, and Air Busan. On the global stage, Korean Air also landed at #7 in the Skytrax 2025 World Airline Rankings and has held a 5-Star rating for five consecutive years.


But the Actual Satisfaction #1 Is Somebody Else

Preference and satisfaction turned out to be two very different things. In that same Consumer Insight survey, when actual flyers rated seven categories — reservations & ticketing, boarding, cabin environment, cabin service, flight operations, and value for money — on a 1000-point scale, foreign carriers grabbed the top spots.

📊 Full-Service Carrier (FSC) Satisfaction Rankings (Consumer Insight, published January 2026)

RankAirlineScore (out of 1000)Notes
1Emirates793#1 for 2 consecutive years, #1 in all 7 categories
2Singapore Airlines748+24 points year-over-year
3Korean Air713-12 points year-over-year
4Asiana Airlines709-8 points year-over-year

Why the Gap?

Emirates pulled ahead largely on hardware — newer aircraft, cutting-edge in-flight entertainment systems, and cabin environment and facilities that outclassed the competition. Korean Air and Asiana are still strong performers, but there's a real gap between "the airline I dream of flying" and "the airline I walked off feeling great about." Prestige and experience don't always align.

Which LCC Do Koreans Actually Rate Highest?

Air Premia takes the crown, and Aero K is the one to watch. South Korea is a country where LCCs have become thoroughly mainstream — international LCC passengers have outnumbered full-service carrier passengers for three years running. Korean consumers are ruthlessly value-for-money minded, and here are the LCCs they rated highest after actually flying them:

🥇
Air Premia (684 pts)
Three-peat LCC satisfaction champion. A "hybrid" carrier with premium economy seating and medium-to-long-haul routes including the Americas — closer to a budget full-service experience.
🥈
Aero K
The only top-tier LCC whose score actually went up (+21 pts). Based out of Cheongju Airport with routes to smaller Japanese cities — winning over passengers tired of Incheon's chaos.
🥉
Air Busan (660 pts)
Based at Busan's Gimhae Airport. Also scored in the upper tier on the government's official evaluation among LCCs.

📊 Low-Cost Carrier (LCC) Satisfaction Rankings (Consumer Insight, out of 1000 points)

RankAirlineScore
1Air Premia684
2Aero K— (up 2 spots)
3Air Busan660
4Air Seoul · Jin Air630 each
6Jeju Air628
7Eastar Jet615
8T’way Air611
13-LCC average606 (-15 pts YoY)

Here’s the plot twist: by brand recognition and sheer scale, Jeju Air is the LCC leader (and tops the brand reputation index for LCCs), but in actual satisfaction, it sits in the lower mid-pack. Bigger doesn’t mean better-loved — and that mismatch between market presence and passenger happiness is a defining feature of Korea’s LCC landscape right now.


Who Ranked #1 in the Government's Official Evaluation?

Korean Air again. In April 2026, the Ministry of Land, Infrastructure and Transport released its 2025 Air Transport Service Evaluation — a government study surveying 31,168 passengers, making it the most comprehensive official assessment of its kind.

🏛️ Ministry of Land, Infrastructure and Transport 2025 Air Service Evaluation — Korean Carrier User Satisfaction (out of 7)

RankAirlineResult
1Korean Air6.07 — only carrier above 6.0; domestic on-time performance: A+
2Asiana Airlines
3Air Premia
4Air Busan
5Jin Air
6Jeju Air
LastAir Seoul

2026: The Year Korea's Aviation Map Gets Redrawn

You can’t talk about Korean airlines in 2026 without talking about the Korean Air–Asiana merger. It’s the story.

Merger Timeline at a Glance

  • December 2026 — Asiana Airlines begins operating under the Korean Air brand. The 78-year era of two full-service flag carriers comes to an end.
  • Q1 2027 — Jin Air, Air Busan, and Air Seoul merge into a single mega-LCC under the Jin Air name.
  • Mileage — Asiana flight-earned miles convert to Korean Air miles at a 1:1 ratio (partner-earned miles convert at 1:0.82).

To put the scale in perspective: in the first half of 2025, international air passengers in Korea totaled 45.83 million. Korean Air (roughly 9.47 million) and Asiana (roughly 6.18 million) together accounted for 34.2% of that traffic. Post-merger, a single brand will be responsible for one out of every three passengers in Korean skies.

Tips for Seoul Travelers

  • Want a polished full-service experience with rock-solid on-time performance? Go with Korean Air — #1 in both government evaluation and consumer preference, Skytrax 5-Star.
  • Flying long-haul and want a roomier seat without the premium price tag? Air Premia is your answer — Korea's own top-rated LCC, built for medium-to-long-haul comfort.
  • Hopping around Japan or Asia on a budget? Check Aero K and Air Busan — the satisfaction leaders among Korean LCCs.
  • Holding Asiana tickets or miles? Pay close attention to the transition notices around December 2026 — things are about to change fast.

Sources

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