A pricing glitch on Google Flights last weekend briefly displayed business class fares from multiple US cities to Asia for as low as 9 one-way, and thousands of savvy travelers managed to book before airlines corrected the error. The incident has reignited interest in the world of error fares and mistake pricing.

What Happened

On Saturday April 4, several airlines including Cathay Pacific and Singapore Airlines displayed dramatically reduced business class fares on routes from Los Angeles, San Francisco, and Seattle to destinations including Hong Kong, Singapore, and Tokyo. The fares appeared to be the result of a currency conversion error in the booking system.

Will Airlines Honor the Tickets?

The Department of Transportation requires airlines to honor tickets purchased at mistake fares in most circumstances. Both Cathay Pacific and Singapore Airlines have indicated they are reviewing the bookings but have not yet canceled any tickets.

How to Find Error Fares Yourself

Travel deal expert Scott Keyes estimates that error fares appear roughly 2-3 times per month across major booking platforms. The key is acting fast and booking first, asking questions later.

For those who missed this particular glitch, experts recommend staying vigilant as airline pricing systems continue to grow more complex, making errors increasingly common.