This is a user generated content submitted by a member of the WriteUpCafe Community. The views and writings here reflect that of the author and not of WriteUpCafe. If you have any complaints regarding this post kindly report
it to us.
How do I upgrade my ticket at Thai Airways? by placing a bid online – passengers can visit the booking option to start their bidding. The bidding can be placed from the time of booking until 6 hours from departure on the US and Asian flights and before 25.
Read Also – https://cheapestflightsfare.com/blog/how-do-i-upgrade-my-ticket-at-thai-airways/