When is flying cheapest? An important aspect is knowing on which days flights are cheapest in order to find the best deals. Flights are usually cheaper if booked on a Tuesday or Wednesday. Very early and late flights are also often cheaper. But that is only the tip of the iceberg. There are many factors that can influence the price of a flight ticket. From choosing the right booking time to being flexible with travel dates – with the right strategies and tips, you can achieve considerable savings. Read on to learn more practical tips on booking cheap flights and planning your next journey cost-effectively.
The essentials at a glance
- Flight prices are subject to complex algorithms based on demand, time of day, day, route and season, and are adjusted continuously.
- Cheap flight tickets are most frequently found on weekdays such as Tuesday, Wednesday and Saturday. At weekends, flights tend to be more expensive.
- The optimum booking time depends on the type of flight: domestic flights should be booked about 28 days in advance, international flights about 60 to 160 days in advance, to obtain the best prices.
Why do flight prices fluctuate?

Flight prices are a mystery to many travellers. Why does a flight cost €100 one day and €300 just a few hours later? Behind this are highly sophisticated computer systems and algorithmsthat maximise the prices for every flight. These algorithms use so-called yield management to continuously adjust prices according to demand, time of day, day of the week, route and season. This means that prices can be set flexibly to achieve maximum profit. Prices fluctuate depending on the number of available seats: when availability is high, they fall; when availability is low, they rise.
An illustration can help to better understand the differences in flight prices depending on demand and availability.
Another factor that influences flight prices is demand. When many people are searching for a particular flight, prices can shoot up. This can even be influenced by the user's internet connection and location. Complex algorithms predict seat demand and adjust prices accordingly: many free seats lower prices, few available seats raise prices.
In addition, airlines adjust prices at short notice to match demand. For example, tickets can become cheaper before departure in order to achieve higher load factors. This dynamic pricing enables airlines to respond flexibly to various factors and set prices accordingly.
Pricing in the aviation industry can thus be seen as a complex interplay of various elements. Understanding these mechanisms can help you find the best flight deals and make your travel planning more efficient.
Best days of the week for cheap flights

Besides general demand and availability, the day of the week plays a crucial role in flight pricing. Many of us may have already noticed that flights are cheaper on certain days, but which days are flights cheapest?
Flights are often cheapest on Tuesdays, Wednesdays and Saturdays. When are you planning to travel? These days are less in demand, as they fall in the middle of the working week and are therefore less attractive for leisure travellers. Thursday can also be a cheap day to book flights.
At the weekend, from Friday to Sunday, flight prices tend to be higher. This is because many people plan their weekend trips and demand is therefore higher. It is therefore worth avoiding flights at the weekend and booking on weekdays instead to avoid higher costs.
A practical tip is to use Tuesday evening for booking, as this is often the cheapest time during the week. With this information, you can plan your flight bookings strategically and achieve significant savings.
Optimal booking times

Choosing the right time to book can make the difference between an expensive and a cheap flight ticket. The best time to book flights depends on various factors. Generally, however, early booking offers and last-minute deals can be good options.
It is best to book domestic flights at least 30 days in advance. This way you will usually get the best prices and have a better selection of available flights. Studies show that 28 days before departure is the ideal time for domestic flights . For international flights, the optimal booking time is somewhat more complex. Here it is recommended to book about 60 to 160 days in advance to get the best prices.
Long-haul flights should be booked well in advanceto obtain cheaper prices. Waiting for last-minute deals does not generally make flights cheaper, especially for long-haul flights. It could be risky to wait too long for the cheapest flight ticket, as prices could end up being more expensive.
By observing these timeframes, you can ensure that you book your flights at the best possible prices and avoid unnecessary costs.
Cheapest travel times of the year

Not just the booking date, but also the travel time itself can have a considerable impact on flight prices. When in the year are flights cheapest? Flights in January and August often offer the best prices for domestic and long-haul flights. December is also a cheap month for domestic and European flights. Statistically, flight prices are lowest at the beginning of the year.
Long-haul flights are cheaper in November, December or January. In contrast, peak season times such as school holidays and public holidays are more expensive for flights. Flights in May and June are often more expensive and should therefore be avoided where possible.
A practical example: someone planning a trip to Madeira who postpones their flight by one day can save over 100 euros per person. With these tips you can plan your travel times optimally and save considerably.
Times of day for cheap flights

Besides the day and season, the time of day when you fly can also make a big difference to the price. Flights are most affordable when they are booked early in the morning or late at night . At the start of the day and late in the evening, flights tend to be cheaper as they are less in demand. These times are often less popular and therefore cheaper, making them ideal flight bargains.
A picture can illustrate how flight prices change depending on the time of day.
Booking flights at unpopular times such as during the night can save considerable money. So if you're willing to travel at unusual times, you can save a lot of money and find the best flight deals.
Book directly with the airline

There are many ways to book flights, but one of the best strategies is to book directly with the airline. Why is that?
Booking directly with the airline can lead to better prices and conditions . Stiftung Warentest found that prices on booking portals are on average higher than directly with the airline. In some cases the price on booking portals was even twice as high.
A picture can illustrate the price differences between booking portals and direct bookings with the airline.
An example: a flight with checked baggage from Düsseldorf to Paris cost 40% more through a portal than directly with the airline. Flight booking portals access contractually linked airlines and operators, but rarely offer the cheapest flights. On the other hand, direct bookings with the airline are often cheaper.
Practical tips: always compare prices on the airline's website and on booking portals before you book. You can often save real money by booking directly with the airline, particularly with budget airlines.
Using flight search engines

Flight search engines are an indispensable tool when it comes to finding the best flight deals. But which are the best and how do you use them effectively? Swoodoo.com, Kayak.de and Momondo.de are some of the best flight search engines, rated 'very good'. Fluege.de, Flug.check24.de and Airline-direct.de are also outstanding flight booking portals.
Use flight search engines such as Skyscanner, Momondo and Google Flights to find the best deals and compare prices. The flexible dates function on Momondo and KAYAK makes it possible to search entire months at once to find the cheapest flight days. It is advantageous to use several flight search engines in parallel, as prices vary between platforms and comparison can ensure you get the best deal. With these tools you're guaranteed to find the best flight offers.
Flexibility with travel dates

Another key to finding cheap flight tickets is flexibility with travel dates. If you have flexible travel dates, you can often find better deals find. Why is this so important? Flexibility with travel dates is important to avoid expensive high-season periods and to choose less busy times. Flexible travel dates increase the chances of cheap flight tickets, as you can avoid travelling at popular times and can also fly at night.
A practical example: On a trip to Portugal over 100 euros per person could be saved by shifting the flight by one day. By booking flights with flexible dates, you increase the chances of cheap flight tickets.
Travellers should consider flexible travel dates to save hard cash and avoid peak times. With this strategy, you maximise your chances of the best flight deals.
Taking advantage of error fares
Error fares are a great way to find extremely cheap flight tickets. These fares arise through errors in price calculation and can often lead to significant savings. But what exactly are error fares and how do you find them?
Error fares are extremely cheap tickets that arise through flight pricing errors. Such errors can occur through human mistakes or technical problems such as forgotten zeros or incorrect fare assignments. Error fares can be discovered on bargain blogs. Or you can search for them specifically on the internet. Facebook groups are also a good source.
To take advantage of error fares, travellers should act quickly and book immediately, as pricing errors can be corrected rapidly. It is advisable to wait with further travel planning after booking an error fare until the eTicket has actually been issued.
The probability that error fare tickets will be honoured is higher for economy class tickets. In comparison, it is lower for business or first class tickets. Use these tips to benefit from the extremely low prices and find fantastic flight deals.
Using bonus programmes and miles
Bonus programmes and mile collecting are a great way tosave on flights in the long term. These programmes offer not only free flights and upgrades, but also exclusive privileges for frequent flyers.
Frequent flyer programmes allow the collection of miles on flights as well as on hotel and car hire bookings. Collected miles can be redeemed for flight awards or other travel rewards. For example, mile awards can be used to obtain upgrades to a higher travel class.
By collecting miles and points, you can achieve frequent flyer status and enjoy exclusive privileges. For every flight with airline partners, miles are automatically credited to the Miles & More account. A frequent flyer programme profile can also save time when booking flights and facilitate check-in.
However, there are also risks with mile collecting, such as mile expiry and fees for free flights. Use these programmes and tips to get the best out of your flight bookings and achieve significant savings.
Summary
The search for cheap flight tickets can be a challenge, but with the right strategies it is quite achievable. We have examined why flight prices fluctuate and which days and times are best for booking flights. The importance of flexibility with travel dates and the use of flight search engines were also highlighted.
By applying the tips presented, you can ensure that you find the best deals and embark on your journey at a fraction of the cost. Whether through using error fares or collecting miles – the opportunities to save money are diverse.
Don't forget that early planning and using the right resources are the key to cheap flights. With these insights, you are well equipped to plan your next trip and save hard cash in the process.
Frequently asked questions (FAQ)
When is the best time to book domestic flights?
The best time to book domestic flights is at least 30 days in advance to get the best prices.
Which days of the week are cheapest for flights?
The cheapest days of the week for flights are typically Tuesday, Wednesday and Saturday. Therefore, ideally plan your journey on one of these days to save money.
What are error fares and how can I find them?
Error fares are extremely cheap tickets resulting from flight pricing mistakes and can be found on bargain blogs or in Facebook groups. Good luck with your search!
How can I benefit from loyalty programmes and miles?
You can benefit from loyalty programmes and miles by obtaining long-term savings, free flights and upgrades. In addition, frequent flyer programmes enable you to collect miles with various partners. Best of luck with that!




