Compare the Seoul–Busan journey
Return here after the selected date and current sale regime are known.
Compare the Seoul–Busan journeyINTERCITY · DATE AND AVAILABILITY HARD GATE
Check the holiday date before normal transport assumptions.
Official holiday dates are source-owned. A wider travel-pressure window is a KTN planning judgment, and neither proves ticket availability.
Decision summary
Stop if any of these is not true
This page is not a holiday culture guide. It decides whether the selected intercity date requires a current special-sale or availability check before transport comparison.
Check date, sale regime and inventoryThe official calendar owns holiday dates; each operator owns its sale conditions and inventory. KTN keeps adjacent pressure risk separate.
Plan your next step
1 Run three checks before buying transport
Use the exact travel date, not a generic belief that all holiday travel is sold out.
- Exact outbound and return dates
- Overlap with official Seollal or Chuseok dates
- Adjacent-day travel-pressure risk as a planning judgment
- Current operator notice covering the selected operating date
- Current sale channel, membership and payment conditions
- Selected train, bus or flight inventory after the correct regime is identified
Hard gate · checked 2026-10-02
2 A date-specific special sale overrides normal booking assumptions
For 2027, the official Seollal holiday is February 6–8 with a substitute holiday on February 9, and the official Chuseok holiday is September 14–16. As of October 2, 2026, KORAIL had not published a 2027 holiday reservation notice, and 2026 sale windows are not a guide to 2027.
A holiday notice does not promise remaining seats, does not define every bus or airline rule, and must not be reused as an evergreen annual booking window.
- You have compared your exact travel dates with the official holiday dates
- First compare the exact itinerary dates with the official Seollal or Chuseok dates.
- Check before continuing
- KTN may flag adjacent travel-pressure risk, but only the published holiday dates are official calendar facts.
- Check before continuing
- Unknown until checked: As of October 2, 2026, KORAIL had not published a 2027 Seollal or Chuseok reservation notice. Do not reuse 2026 operating or sale windows; use each operator's own notice once it appears.
- Your selected train, bus or flight still has seats
- A booking channel or special-sale notice does not prove that the selected train, bus or flight has inventory, and no universal sell-out is claimed.
Comparison after the gate
3 Which date branch applies?
After the date and current sale regime are known, return to the canonical intercity or rail-pass decision.
| Option | Current state | When it fits | Friction | Verify |
|---|---|---|---|---|
| Fits ifNo 2027 Seollal or Chuseok overlap | KTN decision judgmentNo 2027 Seollal or Chuseok overlapUse the ordinary selected-date transport comparison, while still checking current inventory and operator conditions. | Neither your outbound nor your return date falls on February 6–9 or September 14–16, 2027. For travel after September 2027, check that year's official dates once they are published. | Normal-looking dates can still have limited inventory or another event-specific disruption. | Selected-date timetable, inventory, payment and cancellation conditions.Unknown until checked: A non-holiday date does not guarantee normal service, inventory or payment success. |
| Check first2027 Seollal · February 6–9 (with substitute holiday) | Official source2027 Seollal · February 6–8, substitute holiday February 9The official 2027 Seollal holiday is February 6–8; because Seollal Day falls on Sunday, February 7, Tuesday, February 9 is a substitute holiday, so the official break runs February 6–9. As of October 2, 2026, KORAIL had not published a 2027 Seollal reservation notice. | Your outbound or return date falls on February 6–9, 2027, or on the days next to it that KTN treats as higher-pressure travel days. | Seollal Day falls on Sunday, February 7, so February 9 is a substitute holiday. Pressure on adjacent days is a planning judgment, not an extra official holiday. | Wait for KORAIL's and each bus or airline operator's 2027 Seollal notice, then check your exact train, bus or flight.Unknown until checked: The 2027 sale dates, channels and membership conditions are not yet published; a 2026 sale window must not be reused for 2027. |
| Check first2027 Chuseok · September 14–16 | Official source2027 Chuseok · September 14–16The official 2027 Chuseok holiday runs Tuesday, September 14 to Thursday, September 16 (Chuseok Day is September 15). As of October 2, 2026, KORAIL had not published a 2027 Chuseok reservation notice. | Your outbound or return date falls on September 14–16, 2027, or on the days next to it that KTN treats as higher-pressure travel days. | The holiday runs Tuesday to Thursday; a longer break built from the surrounding days is a planning judgment, not an official holiday. No 2027 operator sale notice exists yet. | Wait for the 2027 operator notice for your route and date, then check live inventory; no availability is promised.Unknown until checked: Which trains or buses a 2027 holiday sale will cover, and when it opens, is unknown until each operator publishes its notice; a notice will not prove that any train, bus or flight has inventory. |
Verified official paths
4 Continue only on the matching official path
Official 2027 holiday dates
KORAIL holiday reservation notices (2027 not yet published)
Selected KORAIL train and seat
Selected KOBUS express bus
Before booking
A booking surface does not own the holiday rule
Use official calendar and operator notices to establish the regime before opening a selected-date booking surface.
No seller or affiliate is selected. KTN does not claim universal sell-out or promise inventory.
Owned next decisions
Continue only after the holiday gate is resolved
Test whether a KORAIL Pass fits
Use only for pass value and scope; a pass does not guarantee a seat during a holiday period.
Test whether a KORAIL Pass fitsEvidence and freshness · checked 2026-10-02
Sources and last checks
Holiday dates, special-sale windows and inventory are different facts. Recheck the selected year, operator notice and live availability.
- Official 2027 Korean calendar (Korea AeroSpace Administration)
Official 2027 Seollal and Chuseok holiday dates and the Seollal substitute holiday; travel-pressure language remains KTN interpretation.
- KORAIL press-release board (holiday reservation notices)
Where KORAIL publishes its holiday reservation notices; no 2027 Seollal or Chuseok notice was listed on October 2, 2026.
- KORAIL official selected-date train search
Current selected-train and seat search after the holiday regime is understood.
- KOBUS official selected-date express-bus search
Current selected-date express-bus route and inventory search.