international · 5h 30m · 3,600 km
Seoul to Bangkok
2 airlines · 2 aircraft ranked
In business class, Korean Air's Prestige Suite (787-9) edges out the field with a 6.5/10.Korean Air is the only carrier offering premium economy on this route, scoring 5.2/10.
Quick pick
Fly Korean Air. It has a wider seat (21" vs 20") and direct aisle access.
If fares are comparable, this is the better cabin.
Fly Thai. It has a wider seat (18" vs 17").
If prices are similar, go with this one.
Select two airlines to compare head-to-head
Data verified June 2026
Find your flight
New routes and airlines added regularly. One short email when we do.
Airlines on this route
Route insights
- In business class, Korean Air's Prestige Suite (787-9) edges out the field with a 6.5/10.
- Korean Air is the only carrier offering premium economy on this route, scoring 5.2/10.
- In economy, Thai's Economy (787-8) edges out the field with a 5.0/10.
Frequently asked
Which is better in business: Korean Air or Thai on ICN-BKK?
Prestige Suite (Korean Air, 787-9) edges out Royal Silk Class (Thai Airways, 787-8) in business, scoring 6.5/10 vs 6.1. The deciding factor: direct aisle access from every seat. Thai Airways fights back on legroom and bed length.
Which is better in economy: Korean Air or Thai on ICN-BKK?
Economy (Korean Air, 787-9) and Economy (Thai Airways, 787-8) score virtually the same in economy: 4.9 vs 5/10. The biggest gap is seat width — 18"-wide seats vs 17" — but neither carrier pulls ahead overall.
What are the best seats in Korean Air Prestige Suite on ICN-BKK?
Best: Window seats offer the most privacy in the staggered layout. All seats have direct aisle access despite the 2-2-2 designation. Avoid: Row 1 can be affected by galley noise. Center seats have less privacy than window positions. Staggered 2-2-2 Apex Suite layout where every seat has direct aisle access. 180-degree lie-flat beds extending to 80 inches. 18-inch touchscreen IFE with USB and AC power. No sliding doors (those are on the newer 787-10 Prestige Suites 2.0). Amenity kit by Graff with eye mask, socks, lotions. Multi-course Korean and Western meal options. Wifi available but not complimentary.
What are the best seats in Korean Air Economy on ICN-BKK?
Best: Seats 45C and 45G have no seat in front, offering extra legroom. Rows 29A-C and 29G-J offer significant legroom without galley traffic. Row 10 bulkhead has extra legroom. Avoid: 45C and 45G face the center galley and are near 4 lavatories. Middle seats (B, E, H) throughout. Last rows near rear galley. 33-34 inch pitch is among the most generous economy pitches in the industry for long-haul. 10.6-inch seatback touchscreen IFE. Universal power outlet between seats. Economy amenity kit includes toothbrush, toothpaste, slippers, blanket, headphones. Complimentary Korean and international meal service with bibimbap option. No wifi on 787-9 fleet currently.
What are the best seats in Thai Royal Silk Class on ICN-BKK?
Best: Aisle seats (C and D) have direct aisle access without climbing over anyone Avoid: Window seats A and F require climbing over your neighbor — no direct aisle access This is TG least competitive business product: 2-2-2 layout with no aisle access at windows