Find & Compare Cheap Flights

Yes, completely. Searching and comparing flights costs nothing, and we never add booking fees or markups to the prices you see. We earn a small commission from the airline or travel provider when you book — it comes out of their margin, not your fare.

We search hundreds of airlines and booking sites simultaneously and show you what each one charges for your route and dates. That includes both full-service carriers and budget airlines, so you see the full range rather than whatever one site happens to offer.

Tuesday and Wednesday are consistently the cheapest days to both book and fly. Friday and Sunday departures are the most expensive, because that's when leisure demand peaks. Shifting your trip by a day or two often changes the fare more than any other single factor.

Four to eight weeks ahead for domestic and short-haul European routes, and three to five months for long-haul international flights. Booking inside two weeks costs significantly more, and booking a year out rarely helps. Our guide on how far in advance to book flights breaks this down by route type.

January, February and November are typically the cheapest months across most routes. July, August and the two weeks around Christmas are the most expensive. Shoulder season — April, May, September and October — usually offers the best balance of price and weather.

Sometimes, but not always. A $39 base fare can reach $150 once you add a checked bag, seat selection and a meal — at which point a full-service carrier including all three may cost less. Our guide to budget airline hidden fees shows how to calculate the real total before booking.