More than three in four travellers have never enjoyed an upgrade on their hotel room or aircraft seat, a survey has revealed.
But as many as 9% have either lied, or flirted their way to improving their accommodation or flight conditions, the poll by lastminute.com found.
Top fibs by those wanting to get a better deal include claiming that it is a special occasion or making a fictitious complaint.
Some have lied about being on honeymoon or having just got engaged, while others have even pretended to be pregnant or arrived at airport check-in with a fake injury.
Other tricks include appearing cross, nervous, frightened or embarrassed.
While most Britons have had better luck with hotel upgrades than aircraft ones, Londoners have proved best in securing better travelling conditions.
Eva Bojtos at lastminute.com UK and Ireland said: "It's impressive that so many of us make the most of the opportunities that are out there - whether they are bagging top hotel suites or better seats on a flight.
"However, the vast majority are still missing out - a significant 76%.