How to Upgrade on Swiss Air?

Flying with Swiss Air and now want to upgrade your flight to a premium cabin class for a comfortable journey. The Airline provides several ways to do so. You can request a Swiss Air Upgrade either by bidding for the upgrade or using miles. Moreover, you can make an upgrade request by visiting the official website of Swiss Air or by contacting the customer service of the airline. To avail more details related to the upgrade, check out the blog linked above.