What changed

Track renewal work on the Gyeongbu high-speed line will reduce KTX service between Seoul and Busan from 17 August 2026 to 20 August 2026. About 18 daily services are cancelled and remaining trains add 25 minutes to the journey. Refunds are free of charge for affected tickets booked before 1 August 2026.

Key details

  • Effective from: 2026-08-17
  • Cancelled services: About 18 daily KTX services are cancelled between 2026-08-17 and 2026-08-20
  • Added journey time: Remaining Seoul-Busan trains add 25 minutes
  • Refund fee: Refunds are free of charge for affected tickets

What you need to do

  • Check the official notice linked below before you travel.
  • Compare your own travel dates against the effective date given above, in KST.
  • Allow extra time at the airport or station on the first affected day.

Where to check

Korail publishes this change on its own site first, and aggregator pages often lag behind it by a day or more. If your plans depend on the detail, open the source listed with this article rather than relying on a summary. Where an announcement affects transport, cancellations are published separately from the policy notice, so check both.