international · 6h 50m · 4,627 km
Seoul to Singapore
2 airlines · 2 aircraft ranked
In business class, Singapore's Business Class (A350-900) dominates the field with a 7.9/10.Singapore is the only carrier offering premium economy on this route, scoring 5.5/10.
Quick pick
Fly Singapore. It has a wider seat (28" vs 21") and direct aisle access.
A noticeably better product that justifies the pick.
Fly Singapore. It has free Wi-Fi (paid on Korean Air).
If prices are similar, go with this one.
Select two airlines to compare head-to-head
Data verified June 2026
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Airlines on this route
Route insights
- In business class, Singapore's Business Class (A350-900) dominates the field with a 7.9/10.
- Singapore is the only carrier offering premium economy on this route, scoring 5.5/10.
- In economy, Singapore's Economy (A350-900) leads the field with a 5.4/10.
Frequently asked
Which is better in business: Singapore or Korean Air on ICN-SIN?
Business Class (Singapore Airlines, A350-900) dominates Prestige Suite (Korean Air, 777-300ER) in business, scoring 7.9/10 vs 5.2. The deciding factor: Free Wi-Fi vs No Wi-Fi.
Which is better in economy: Singapore or Korean Air on ICN-SIN?
Economy (Singapore Airlines, A350-900) edges out Economy (Korean Air, 777-300ER) in economy, scoring 5.4/10 vs 4.8. The deciding factor: Free Wi-Fi vs No Wi-Fi. Korean Air fights back on legroom and seat width.
What are the best seats in Singapore Business Class on ICN-SIN?
Best: Bulkhead seats 11K (forward starboard), 10A (forward port), 19A, and 19K have much larger footwells, making sitting and sleeping far more comfortable. These should be first choice, especially for passengers over 6 feet. Secondary picks: center bulkhead seats 11D/11F and 19D/19F for their oversized footrests. Quiet mid-cabin picks: 14A, 14K. Avoid: Any center seat one row behind a bulkhead (12D/12F, 20D/20F) for light and noise bleed from galleys. Last row of each cabin section (18D/18F, 29A/29K). Seat 17D/17F is between two storage cupboards with toilets immediately behind. Non-bulkhead footwells are small and can be uncomfortable for tall passengers. Standard 3-class A350-900 with 42 business seats in staggered 1-2-1. The seat is the Stelia Opal, originally introduced on the 777-300ER but slightly narrower on the A350 fuselage. 18-inch HD LCD screen with Panasonic eX3 IFE. WiFi is complimentary and unlimited for business class. Le Labo amenity kit on request. Slippers, socks, eyeshade, pillow, and duvet provided. Power includes AC outlet, USB-A, and USB-C.
What are the best seats in Singapore Premium Economy on ICN-SIN?
Best: Solo seats at window positions in the rear 1-4-1 rows (41-43) have their own storage bins and extra personal space between the seat and the window. Emergency exit window seats 31A and 31K are dark-horse picks with excellent legroom and no proximity to the exit slide. Unblocked solo seats become available for selection 48 hours before departure. Avoid: 43F and 43G are the worst seats in the cabin. Seats near 42H catch bathroom vacuum noise. Center seats throughout (D, E, F, G) in the 2-4-2 section. Standard 3-class A350-900 with 24 premium economy seats. Layout transitions from 2-4-2 (rows 31-40) to 1-4-1 (rows 41-43) with desirable solo window seats at the back. 13.3-inch seatback IFE. 38-inch pitch with 18.5-inch width. Footrest, adjustable headrest, and in-seat power (AC and USB). Amenity kit on request. Complimentary enhanced meal service. WiFi is paid for premium economy.
What are the best seats in Korean Air Prestige Suite on ICN-SIN?
Best: Aisle seats for easier access in the 2-2-2 layout. Avoid: Window seats require climbing over your neighbor. Apex Suite hardware in 2-2-2 layout without direct aisle access. Privacy shields but no doors. 15.4-inch IFE. Most V1 frames lack wifi.