Not all airlines allow you to bid for seat upgrades, and those that do may only allow it on specific routes or have a certain time window in which to do it — less than 72 hours before departure, for example.
The little-known hack for getting upgraded on a flight Airlines are offering passengers a way to upgrade tickets on quieter flights, and it could save you hundreds of pounds.
Most passengers will bid close to the minimum amount, so bidding around 20-40% above this gives you a good chance of securing an upgrade.
The following airlines allow passengers to bid for a business class seat — check their websites for further details:.
While you’re not guaranteed to win an upgrade, the chance to nab a cheap business class flight is worth the punt.