If you spent too much money on gifts, relax. You can let Google find the cheapest post-holiday flights for you.

Irrespective of the season, Fridays and Sundays consistently emerge as the worst days to book flights due to high demand.

Ever clicked "book now" on a flight, only to see the same ticket drop by hundreds of dollars the next day? That sinking feeling hits hard. Most travelers assume flight pricing is random chaos, ...