They might, or they might not. As a matter of fact, flight prices can change any minute of the day. That includes, but is not restricted to, midnight. They can change somewhere in the middle of the day as well.
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The process is largely controlled by computer software and is increasingly being bolstered by AI, so price changes can happen at any second. That's why there's no specific time of day — or even a specific day of the week, for that matter — that's best for booking cheap flights.
The reality is that flight prices change constantly and at all hours of the day, adjusting to real-time demand. Airlines don't restock on the same day every week like a grocery store, so you won't find deals by waiting until Tuesdays to book.
No, Tuesday isn't the cheapest day of the week to buy flights. In the early days of online flight booking, airlines used to manually post their updated prices at a certain time of day each week.
In general, flights were slightly cheaper at midnight earlier in the week (Monday through Wednesday). However, this is only applicable to about 1.6% of U.S. markets, meaning that it's not likely you'll find the same savings on your specific route. And midnight later in the week actually gets more expensive.
In the past, you may have heard that the secret best time to buy plane tickets was Tuesday at midnight, but according to Hayley Berg, lead economist for travel deals app Hopper, that's not always the case. “We found that this was only applicable to 1.6% of routes and yielded savings of 6%,” she says.
Neither is Google Flights – the best search platform for finding good deals on airfare – or most other search engines and online travel agencies (OTAs) like Expedia, Hopper and Priceline. There is no evidence that sites are raising flight prices the more that you search for a specific trip, or by a previous search.
Airline ticket prices do not always drop as the last minute approaches. In fact, they often go up. This is because airlines know that people who need to book last-minute flights are often willing to pay more, especially if they are traveling for business or have to be at their destination on a specific date.
Crunching the data on millions of airline passengers flying on more than 200,000 daily flights reveals some interesting trends that can save you money the next time you fly. For starters: Never book your airfare on a Friday. That's when prices are at their highest.
According to a recent study by Expedia, the cheapest day to book flights is Sunday. When comparing Sunday flight prices to Friday, Expedia found that travelers save 5% on domestic flights and 15% on international flights. For the past four years, Sunday has been the best day of the week to book flights.
The same report claims that you should book flights at 5am for the most potential savings, avoid booking flights between 8–11pm, and book on Tuesdays for domestic flights and Wednesdays for international flights.
Demand (yield management):To maximize revenue, airlines use a variable pricing strategy to sell the same seat at different prices to different customers at different times. Airlines pre-define different fare segments, even for the same fare class.
Smoother flightOn clear nights, there is less friction against the wings which makes for obstruction-free sailing across the sky. Less air traffic also means smoother cruising, since most pilots can sit back and not worry about the aircraft in their path.
Is it cheaper to book a flight at the last minute? We've said this before, but it's worth repeating at the outset—no, it's really not cheaper to book a flight at the last minute. Yes, last minute travelers used to score the occasional fare so low it might have induced shock, but that's no longer the case.
More specifically, Tuesday at about 15:00 eastern time. This is because many airlines release weekly sales early on Tuesday, which creates competition between airlines to match prices.
Book your flights for the middle of the weekOn those days, tickets are roughly 12% to 20% cheaper than flying on a weekend day. For economy tickets, prices on Tuesday and Wednesday are generally 24% lower than peak prices, saving you roughly $85 per ticket, CNET's Sophia Fox-Sowell reports.
Book your flights for the middle of the weekAccording to a recent Google study, flying during the middle of the week will get you the best deal. On those days, tickets are roughly 12% to 20% cheaper than flying on a weekend day.
“Despite many reports claiming Tuesday or Wednesday mornings are the best time to book flights, there is no evidence of that being true,” explains Phil Dengler, founder of TheVacationer.com. “Cheap flight prices are available 24/7, so you should not limit yourself to a particular day or time.”
The early bird may be known for catching the worm, but it also catches the best flights. In fact, people who get the first flight in the morning can usually expect a smoother trip, friendlier staff, a cleaner plane and, often, a cheaper ticket.