Booking Cheaper Flights

Airline pricing responds to demand, competition on the route and how many seats remain in a fare bucket, not to a browser setting. The decisions that move the total are your dates, the airports you use and what the fare actually includes.

Dates And Days

Midweek departures generally cost less than Friday to Sunday on the same route, and the first flight of the morning is often the cheapest of the day. School holidays, public holiday weekends and the days either side of them carry the steepest increases.

Shoulder season matters more than the day of the week on long routes. A week either side of the peak can cut the fare noticeably and reduce hotel demand at the same time. When your dates are fixed by an event, book early rather than waiting for a sale that may never cover your route.

Carriers release a limited number of seats in a lower bucket during a sale, and they disappear within hours on popular routes. An alert catches that window, because checking manually twice a day will miss it.

Booking very early is not automatically the cheapest seat, but it is usually the cheapest seat left for a fixed date, because the low buckets sell first. Waiting pays off only when you can move your dates or when several carriers compete on the same day.

• Midweek - Tuesday and Wednesday departures, usually the softest demand.
• First flight - Early departures are often cheaper than midday ones.
• Shoulder season - The weeks either side of peak, cheaper on both ends.
• Event weekends - Match days, festivals and holidays push fares sharply up.

Airports And Connections

Secondary airports serving a city often sell cheaper seats, but the transfer into the centre can cancel the saving. Add that transfer to the total before choosing, including a late night surcharge once the last train has gone.

A connection usually costs less than a nonstop on the same route, and it adds risk. If the two legs are on separate tickets, the second carrier has no obligation to rebook you when the first runs late, and your bags will not transfer between them.

Look at ground transport from both airports before booking. One with a rail link into the centre and one with a thin evening bus service are not the same product, however similar the fares look.

What The Fare Includes

The lowest fare on a low-cost carrier typically covers a seat and one small personal bag. Everything else is sold separately: checked baggage, a larger cabin bag, seat selection and food. Add the items you will genuinely use to the base fare before comparing it with a full service ticket.

On some carriers a one way ticket costs about the same as a return, while others price the return leg lower than the outbound. Check both combinations before booking, because changing your mind afterwards costs more than choosing correctly the first time.

Passengers travelling with only a personal bag normally board in the last group, and cabin space can run out before they get on. A bag that ends up in the hold at the gate was not the cheap option it appeared to be.

• Personal bag - Often the only baggage included, and size checked at the gate.
• Cabin bag - Sold separately on many low-cost fares, weighed at boarding.
• Seat selection - Charged per leg, free only at check-in on some carriers.
• Change fee - Applies to date changes, plus any difference in fare.

Tactics To Avoid

Hidden city ticketing, where you book a longer route and leave at the connection, breaches the carrier's terms. It can void the rest of the ticket, forfeit frequent flyer credit and strand your checked bag, and it fails entirely when there is a return leg you still intend to use.

Screenshots of fares that rise after a search, or prices that differ between devices, are usually fare buckets filling rather than tracking. Book when you find something that fits your budget instead of waiting for a pattern that may not exist.

The cheapest fares are usually the least flexible and cannot be changed at all. Work out what a change would cost before booking one, not after your plans move.

Alerts, Points And Timing

Set fare alerts for the route and leave them running for weeks. Prices move in both directions, and an alert tells you when a bucket opens rather than making you guess at a best day to buy. Flexibility with dates remains the largest single lever on price.

Check points against the cash fare rather than assuming they win. Add the taxes and carrier charges, then compare what those points would buy elsewhere. Award seats are limited by route and date, so start looking well before the dates you need.

Booking directly with the carrier usually makes changes and refunds easier than booking through an intermediary, whose terms add their own handling charges and response times when something goes wrong.

• Fare alert - Emails when the price for your route and dates moves.
• Fare bucket - The inventory class that decides the price you see.
• Award seat - Limited allocation per flight, released in stages.
• Taxes on awards - Still payable on a points booking, sometimes substantial.