Nonstop on Air Premia, Asiana Airlines, Eastar Jet (from 25 October 2026), Japan Airlines, Jeju Air, Jin Air, Korean Air, T'way Air, Thai Airways and Thai VietJet Air · about 4h 58m · 3,669 km
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What we can verify about flying Bangkok to Seoul — who flies it nonstop, the distance, roughly how long the flight takes gate to gate, and which mileage programs cover the city pair in their award search.
Air Premia, Asiana Airlines, Eastar Jet (from 25 October 2026), Japan Airlines, Jeju Air, Jin Air, Korean Air, T'way Air, Thai Airways and Thai VietJet Air
Scheduled nonstop service on BKK–ICN as of 2 September 2026.
3,669 km (2,280 miles)
Great-circle distance between BKK and ICN.
About 4h 58m
Estimated from distance at typical cruise speed — actual schedules vary with routing, winds and aircraft.
Refreshed 10 June 2026
When we last refreshed the award-search catalog this pairing appears in.
7 tracked programs include this city pair in their award search. That tells you which currencies are worth checking — useful whether you hold points already or want us to compare an award against a discounted cash fare.
A program listing the route means the pairing is in its award search — often on partner airlines, and sometimes only with a connection — not that the named airline flies it nonstop. The nonstop airlines are the ones named above.
We price premium cabins across airlines, award programs and unpublished fare channels, then hand you the options side by side — on this pairing as on any other.
We book business and first class every day across long-haul carriers, and we will tell you which cabin and which aircraft you are actually getting on this pairing — the seat differs by airline and often by aircraft on the same route.
We price consolidator contracts and award inventory that public booking sites do not show, then compare them against the published fare so you can see which actually wins.
Business class on this pairing typically opens Thai Airways Royal Silk Lounge, Miracle Lounge, Coral Premium Lounge and others — we will tell you which one your ticket actually gets you into, and where fast track applies.
Dedicated concierge support before, during and after your flight, including reissues mid-trip — changes route through our desk rather than the airline app.
10 airlines operate scheduled nonstop flights on BKK–ICN, per published schedules as of 2 September 2026. Seasonal and not-yet-launched services are marked.

Scheduled nonstop on BKK–ICN

Star Alliance
Miles: Asiana Club
Scheduled nonstop on BKK–ICN

Scheduled nonstop on BKK–ICN

Oneworld
Miles: JAL Mileage Bank
Scheduled nonstop on BKK–ICN

Scheduled nonstop on BKK–ICN

Scheduled nonstop on BKK–ICN

SkyTeam
Miles: Korean Air SKYPASS
Scheduled nonstop on BKK–ICN

Scheduled nonstop on BKK–ICN

Star Alliance
Miles: Royal Orchid Plus
Scheduled nonstop on BKK–ICN

Scheduled nonstop on BKK–ICN
Business class differs by airline — and often by aircraft on the same route. We tell you which seat you are actually getting, and price every carrier above against each other, before you book.
Estimate what a typical Biirdee saving looks like on a route of this length
Cabin Class
Per round trip
Estimated savings of $1,820 on 2 round trips in Business Class: regular price $5,200, Biirdee price $3,380, 35% off.
Your estimated savings
Illustrative: 35% off a typical published business class fare for a route of this length, across 2 round trips a year.
Estimates only — not a quote, and not a live fare. "Regular price" is an indicative published business class fare banded by route distance, and the discount is our typical range; your quote depends on dates, airline and availability.
Lounges, priority services and terminal detail for both ends of this route
Thailand's main international airport and a major hub for Southeast Asia.
Terminals: 1
The largest airport in South Korea and one of the major transfer hubs in East Asia.
Terminals: 2
Typical of international business class. Entitlements are set by the airline and fare, not the airport — US domestic first class, for instance, rarely includes lounge access. We confirm what your specific booking includes before you travel.
What incredible service. I'm so immensely grateful to our agent Jonathan and the team. We needed to urgently travel from London to Sydney with 2 days notice. Jonathan replied immediately with multiple flight options and great pricing. He was more than happy to make changes too and answer all of my questions and we had business class flights booked with Cathay Pacific within 2 hours! Not only that we had the exact seat selections we requested. The whole experience couldn't have been easier and the service and care were outstanding. I would use this team again in a heartbeat and I couldn't recommend them more highly. A massive thank you to Jonathan personally for the effort and focus he took in getting my baby and I home safely. And in great style too. Thank you so much
Jack is excellent! He is easy to work with, communicates well and fast to respond - he's always a message away. He understood what I was looking for, went above and beyond and delivered. Jack eased a lot of my stress and anxiety about the trip. We flew business class direct to and from Japan at a great price and couldn't be happier! Will continue to use Biirdee for future flights and travel. Highly recommend working with Jack!
Had the best experience working with Jonathan! He got me such a great price for my flight back home! He is always available and the entire process was super easy. Big thank you to Jonathan and the team at biirdee🙏
Biirdee Travel are simply faultless! Over the past 4 years I have worked with them I have received punctual responses, insightful discussions, and respectful attitudes towards navigating the overwhelming travel industry and getting the best deal anyone can find! I always look forward to reaching out about my next travel plans as it's never a hassle. They always deliver a luxury experience throughout. I appreciate Joseph and the team immensely for giving me luxury at an affordable price!
This is my first time working with Biirdee and it will not be the last! When I first called Biirdee I was expecting an automated machine like everyone else, but Eric responded right away. The customer service I received from both Eric and Mark was amazing. They gave us an amazing rate for our trip and always keeping us in the loop. I can't wait to continue or travels, but this time with Biirdee! If you need help booking a business/first class flight at the best rate, just call them!
Biirdee helped to make my travel experience amazing! With Biirdee, we were able to get business seats with Virgin Australia for almost half the price. This was a 16 hour flight so being able to laydown in business seats was a lifesaver. The booking process with Biirdee could not have been easier. I recommend them to everyone. Thank you Biirdee for making traveling so much more enjoyable and affordable!!
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@biirdeetravelEverything you need to know about booking BKK-ICN business class
BKK to ICN is 3,669 km (2,280 miles) as the crow flies, which works out to roughly 4h 58m gate to gate on a nonstop. Published schedules vary by aircraft, routing and seasonal winds — eastbound and westbound legs on the same pairing often differ by 30 to 60 minutes.
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