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Lifestyle & Culture
Testing the Cheapest Day to Fly and Six Other Travel Myths
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There was a time when booking a cheap flight apparently required the kind of strategy normally reserved for a casino heist. Search on a Tuesday. Clear your cookies. Open an incognito browser. Book exactly six weeks before departure. Never buy on the weekend. Wait until midnight. Sacrifice a luggage tag under a full moon.
Okay, perhaps not that last one.
But airfare folklore has been passed around for years, and plenty of us still follow at least some of it. The trouble is that airline pricing has changed considerably, and many of the tricks we swear by are either outdated, oversimplified or simply not true.
So, which travel myths still deserve a place in your trip-planning toolkit?
Myth: Tuesday is the cheapest day to book
This may be the grandparent of all airfare myths.
The idea dates back to an era when airlines tended to release fares and specials on particular days, meaning Tuesday could genuinely be a good time to go bargain hunting.
These days, fares move constantly, responding to demand, availability and a whole tangle of automated pricing systems. There is no universally magical booking day.
In fact, Expedia's Australian 2026 Air Hacks data says Thursday is currently the cheapest day for Australians to book, although the more interesting point is how much this advice can change from year to year. Expedia's 2025 Australian report named Sunday as the cheapest booking day.
Which rather proves the point. Tuesday isn't sacred, and neither is Thursday.
Verdict: Mostly myth. Don't organise your week around buying plane tickets.
Myth: You should always fly midweek
This one has a little more life left in it, although again, there is no single rule for every route.
Historically, flying when fewer people want to fly has often meant paying less. Often Monday, Tuesday and Wednesday departures are cheaper on average than weekends. But Australia's latest Expedia data throws an interesting spanner into the overhead locker, finding Friday the cheapest day for international travel in 2026, around 12 per cent cheaper than Sunday.
The better rule is therefore not to fly on Tuesday, but to be flexible with your departure date.
When searching, move your trip forward and backward by a day or two. Google Flights' date grid and price graph are designed specifically to show how much fares change across different departure dates.
Verdict: Sometimes true, but flexibility beats loyalty to a particular weekday.
Myth: Airlines know you've been searching and put the price up
You search Melbourne to Tokyo. It costs $850. You return later and suddenly, boom, $917.
Clearly the airline knows you want to go to Japan and is now personally tormenting you.
However, the advice is to delete your cookies, switch browsers, go incognito and perhaps assume an entirely new online identity before daring to search again; actually offers little evidence of price savings.
According to Skyscanner, prices on its platform remain the same whether you search normally or in incognito mode. It attributes fare changes to the much less sinister explanation of dynamic pricing, including changing demand and availability. That doesn't mean prices aren't changing while you're looking. They absolutely can. It just doesn't mean you're being punished for checking three times during lunch.
Verdict: Myth. You may use incognito mode if it makes you feel better, but don't expect it to magically unlock secret fares.
Myth: The earlier you book, the cheaper the flight
Booking early can be smart, particularly for school holidays, Christmas, major events or routes where you have very little flexibility.
But booking as early as possible isn't automatically cheapest. For Australian domestic economy fares, Expedia's 2026 data puts the most affordable booking window at roughly four to six weeks before departure.
Google's international data also shows that the sweet spot varies considerably depending on destination and travel period. Its 2025 analysis found international fares were generally lowest 49 days or more before departure, while domestic fares reached their low point around 39 days out.
The takeaway? There is no universal 'book six months ahead' rule.
Verdict: Half true. Early is generally safer, but earliest isn't necessarily cheapest.
Myth: Last-minute flights are cheap
Anyone old enough to remember standby fares may still harbour dreams of arriving at the airport with a toothbrush and scoring a wildly discounted seat somewhere fabulous.
Unfortunately, airlines generally know that someone booking tomorrow's flight is more likely to need to travel tomorrow. Business travellers, family emergencies and fixed commitments aren't usually price-sensitive customers.
There can certainly be last-minute bargains when airlines want to fill seats, but counting on one is less travel strategy and more roulette wheel. If you have fixed dates or a particular destination in mind, waiting until the final few days can leave you choosing between an expensive fare and telling everyone you never really wanted to go to Fiji anyway.
Verdict: Occasionally true, but spectacularly unreliable.
Myth: There is one secret trick to finding cheap flights
Probably the biggest myth of all.
Cheap airfare hunting is less about discovering one clever trick and more about giving yourself options.
Check nearby dates. Compare airports. Consider a stopover. Track fares rather than checking them obsessively. Google Flights, for example, lets travellers set price alerts for specific dates or even flexible dates and will notify them when fares change.
And perhaps most importantly, know roughly what a reasonable fare looks like for the route you want. Because while there may be no magical Tuesday afternoon when airline websites suddenly fling bargain fares at anyone clever enough to turn on incognito mode, there is still one travel hack that refuses to become obsolete:
Being flexible.
Not quite as exciting as outsmarting an airline algorithm, but considerably more effective.
Okay, perhaps not that last one.
But airfare folklore has been passed around for years, and plenty of us still follow at least some of it. The trouble is that airline pricing has changed considerably, and many of the tricks we swear by are either outdated, oversimplified or simply not true.
So, which travel myths still deserve a place in your trip-planning toolkit?
Myth: Tuesday is the cheapest day to book
This may be the grandparent of all airfare myths.
The idea dates back to an era when airlines tended to release fares and specials on particular days, meaning Tuesday could genuinely be a good time to go bargain hunting.
These days, fares move constantly, responding to demand, availability and a whole tangle of automated pricing systems. There is no universally magical booking day.
In fact, Expedia's Australian 2026 Air Hacks data says Thursday is currently the cheapest day for Australians to book, although the more interesting point is how much this advice can change from year to year. Expedia's 2025 Australian report named Sunday as the cheapest booking day.
Which rather proves the point. Tuesday isn't sacred, and neither is Thursday.
Verdict: Mostly myth. Don't organise your week around buying plane tickets.
Myth: You should always fly midweek
This one has a little more life left in it, although again, there is no single rule for every route.
Historically, flying when fewer people want to fly has often meant paying less. Often Monday, Tuesday and Wednesday departures are cheaper on average than weekends. But Australia's latest Expedia data throws an interesting spanner into the overhead locker, finding Friday the cheapest day for international travel in 2026, around 12 per cent cheaper than Sunday.
The better rule is therefore not to fly on Tuesday, but to be flexible with your departure date.
When searching, move your trip forward and backward by a day or two. Google Flights' date grid and price graph are designed specifically to show how much fares change across different departure dates.
Verdict: Sometimes true, but flexibility beats loyalty to a particular weekday.
Myth: Airlines know you've been searching and put the price up
You search Melbourne to Tokyo. It costs $850. You return later and suddenly, boom, $917.
Clearly the airline knows you want to go to Japan and is now personally tormenting you.
However, the advice is to delete your cookies, switch browsers, go incognito and perhaps assume an entirely new online identity before daring to search again; actually offers little evidence of price savings.
According to Skyscanner, prices on its platform remain the same whether you search normally or in incognito mode. It attributes fare changes to the much less sinister explanation of dynamic pricing, including changing demand and availability. That doesn't mean prices aren't changing while you're looking. They absolutely can. It just doesn't mean you're being punished for checking three times during lunch.
Verdict: Myth. You may use incognito mode if it makes you feel better, but don't expect it to magically unlock secret fares.
Myth: The earlier you book, the cheaper the flight
Booking early can be smart, particularly for school holidays, Christmas, major events or routes where you have very little flexibility.
But booking as early as possible isn't automatically cheapest. For Australian domestic economy fares, Expedia's 2026 data puts the most affordable booking window at roughly four to six weeks before departure.
Google's international data also shows that the sweet spot varies considerably depending on destination and travel period. Its 2025 analysis found international fares were generally lowest 49 days or more before departure, while domestic fares reached their low point around 39 days out.
The takeaway? There is no universal 'book six months ahead' rule.
Verdict: Half true. Early is generally safer, but earliest isn't necessarily cheapest.
Myth: Last-minute flights are cheap
Anyone old enough to remember standby fares may still harbour dreams of arriving at the airport with a toothbrush and scoring a wildly discounted seat somewhere fabulous.
Unfortunately, airlines generally know that someone booking tomorrow's flight is more likely to need to travel tomorrow. Business travellers, family emergencies and fixed commitments aren't usually price-sensitive customers.
There can certainly be last-minute bargains when airlines want to fill seats, but counting on one is less travel strategy and more roulette wheel. If you have fixed dates or a particular destination in mind, waiting until the final few days can leave you choosing between an expensive fare and telling everyone you never really wanted to go to Fiji anyway.
Verdict: Occasionally true, but spectacularly unreliable.
Myth: There is one secret trick to finding cheap flights
Probably the biggest myth of all.
Cheap airfare hunting is less about discovering one clever trick and more about giving yourself options.
Check nearby dates. Compare airports. Consider a stopover. Track fares rather than checking them obsessively. Google Flights, for example, lets travellers set price alerts for specific dates or even flexible dates and will notify them when fares change.
And perhaps most importantly, know roughly what a reasonable fare looks like for the route you want. Because while there may be no magical Tuesday afternoon when airline websites suddenly fling bargain fares at anyone clever enough to turn on incognito mode, there is still one travel hack that refuses to become obsolete:
Being flexible.
Not quite as exciting as outsmarting an airline algorithm, but considerably more effective.






