Loading...
You find a flight from London to Istanbul for £180. You check again the next morning and it is £230. What happened?
Nothing sinister. Flight prices move all the time, based on demand, dates and how many seats are left. There is no single magic trick for cheap flights. The biggest savings usually come from flexibility, comparison and knowing what to look for.
This guide walks through ten things that really help, in plain English, with no guarantees that do not hold up.
You may have seen the claim that Tuesday at 3pm is the cheapest time to book a flight. It is one of the most repeated travel tips online. It is also not really true.
According to flight guides by expert UK travel agencies like Travelapp, prices move based on demand, availability, route, season, and how many seats are left.
The best strategy is usually flexibility, not chasing one magic booking day. The rest of this guide shows you where that flexibility actually pays off.
Changing your travel date by even a day or two can sometimes change the fare. Midweek flights, especially Tuesdays and Wednesdays, tend to cost less than weekend departures. Fewer people want to travel then.
School holidays, bank holidays and peak season push prices up across the board. Shoulder season, just before or after the busiest weeks, is often quieter and cheaper.
Flexible-date search tools let you compare prices across a whole month at once. This is especially useful for families or anyone who is not tied to one exact date.
You can book holiday packages in advance.
It is worth checking more than one departure airport. Heathrow and Gatwick often price differently for the same route. So do Manchester and Birmingham, or Glasgow and Edinburgh.
The cheapest ticket is not always the cheapest journey. Add up the train or coach fare, parking, airport transfers and travel time before you decide.
A flight that is £30 cheaper does not save you money if getting to that airport costs an extra £50.
Some search tools offer an "Everywhere" or "Anywhere" option. Instead of searching London to Barcelona, you search London to Europe and see which destinations come back cheapest.
This works well if you know roughly when you want to travel but have not settled on where. It will not suit you if you already have your heart set on one city.
A return ticket is not always the cheapest option, though data on this is mixed. One recent study of major routes found return fares were usually cheaper overall, sometimes by a wide margin.
Occasionally, though, two separate one-way tickets, perhaps outbound with one airline and back with another, can work out less. It depends on the route, the season and which airlines fly it.
Always compare the full cost. That means baggage, seat selection and total travel time, not just the headline fare.
This is sometimes called mixing and matching: one airline outbound, a different one on the return. It can occasionally beat a normal return booking, especially when a budget carrier flies one leg.
There is a real risk here. If your first flight is delayed, the second airline does not have to wait for you or rebook you. A self-transfer trip offers limited protection.
Leave plenty of time between flights. Do not book a tight connection across two unrelated tickets.
Checking a price once tells you very little. Tracking it over a few days tells you if it is a real deal or just an average one.
Price alert tools flag when a fare drops on a route you are watching. They will not always find the cheapest possible fare, but they save you from checking manually every day.
TravelApp does not currently offer a dedicated price-tracking or alert feature. This section reflects general good practice rather than a TravelApp tool. You can still use TravelApp's flight comparison search to check prices whenever it suits you.
An error fare, or mistake fare, happens when an airline accidentally prices a ticket far too low. Causes include currency conversion mistakes, a missing digit, or an incorrect fare rule.
These fares can disappear within hours. Not every unusually cheap fare is safe to plan around, either. Airlines are not legally required to honour a mistake fare, and roughly 10 to 20 percent end up cancelled.
Do not book non-refundable hotels until the airline confirms your ticket. Waiting a week or two is a sensible precaution.
There is no single universally cheapest booking day. The ideal window depends on your destination, the season, demand and how far ahead the airline releases its cheapest seats.
As a general guide, booking around two weeks before short-haul travel where possible. For school holiday travel, plan further ahead, since demand and prices tend to climb early.
Prices can shift right up until departure, in either direction.
Fares tend to move more slowly, but cheaper seat classes can sell out early on popular dates.
The headline fare is not always the final cost. Before you pay, check baggage, seat selection, payment fees, transfers and the cancellation policy.
A £120 fare with £60 of add-ons is not cheaper than a £160 fare that already includes them. Compare the full journey cost, not just the number on the search page.
Can you really get extremely cheap last-minute flights? Sometimes, yes. Airlines occasionally cut prices when a flight is not filling up.
But popular routes often get more expensive as departure gets closer, not cheaper. If you have fixed dates, a family booking or school holiday travel, waiting until the last minute is a gamble. It is not a strategy.
Yes, occasionally, but there is no guarantee. Weak demand on a route can push a fare down close to departure. Strong demand does the opposite, and the remaining seats are usually the most expensive ones left.
Last-minute flexibility helps if you can travel on short notice and are not fixed on one destination. If your dates cannot move, booking ahead is the safer bet.
| Strategy | Potential benefit | What to watch |
| Flexible dates | More fare options across the month | May mean changing your plans |
| Nearby airports | More routes and price points | Extra transport costs to reach them |
| One-way tickets | Can occasionally reduce total fare | Separate bookings carry more risk |
| Last-minute fares | Occasional genuine deals | Prices can also rise, not just fall |
A good travel platform will not magically make flights cheaper, but it can make comparing options easier. TravelApp lets you compare flights across routes and dates in one place, without checking a dozen separate sites.
TravelApp also offers Book Now, Pay Later on eligible bookings, spreading the cost rather than making the flight cheaper. Planning a family trip? It is worth browsing TravelApp's family holiday packages alongside your flight search, since combining both sometimes beats booking separately.
Once you know what to look for, a better flight price is much less about luck and more about comparison. When you are ready to plan your next trip, TravelApp can help you build it around your budget.
Quick answers to common questions. Reach out if you need more help.
There is no single trick. The most reliable approach is being flexible with your dates, comparing more than one airport and tracking prices over time. Always check the full cost, including baggage and fees, before you book. Combining a few of these usually works better than relying on one hack alone.
Try flexible date searches, compare nearby airports, and check both one-way and return options. Booking with enough notice for your route also helps, since the cheapest seat classes tend to sell out first. Avoid adding extras at checkout unless you actually need them.
Not always. Airlines sometimes offer their own deals or loyalty pricing. But comparison sites can also surface lower fares or combinations airlines do not show themselves. It is worth checking both before you commit, since the cheaper option changes route by route.
Stay flexible on both dates and destination, and use a comparison tool to scan multiple routes at once. Weak-demand flights can drop in price close to departure, but there is no guarantee. If your dates are fixed, do not rely on this as your main plan.
There is no reliable method that guarantees 50 percent off. Genuine discounts usually come from airline sales, loyalty programmes or error fares. They can also come from flying a less popular route or date. Treat any guaranteed 50 percent claim with real scepticism.
No single website is always cheapest. Prices vary by route, date and even by device at times. Compare at least two or three sources, including a comparison platform like TravelApp. This gives you a much clearer picture than checking just one.
