How to upgrade on LOT?
To upgrade on LOT Polish Airlines, use your Miles & More points, bid through the LOT Upgrade service, or check for available upgrades during online check-in. For last-minute options, contact LOT Polish Airlines customer service or inquire at the airport. For more information you can read the blog by Airlines Group Travel at the mentioned link.
Read more:- https://www.airlinesgrouptravel.com/blog/how-to-upgrade-on-lot
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