How to Find Cheaper Flights: What Actually Works

Airfares change constantly based on demand, seat availability and competition. You cannot control the market, but you can control how flexible you are and how carefully you compare. Those two things save far more than any secret trick.

1. Be flexible with dates

Flying a day or two earlier or later can change the price significantly. Use the calendar or date-grid view on flight search engines to see a whole month of prices at once. Midweek departures and returns are often, though not always, cheaper than Friday and Sunday.

2. Consider nearby airports

Many cities are served by several airports, and some low-cost airlines use smaller secondary airports. Search for "all airports" in a city or region, but add the cost and time of getting to and from each one before deciding.

3. Set price alerts

Flight search tools such as Google Flights and others let you track a route and receive an email when the price changes. Set alerts early and book when the price is reasonable for that route. Many tools also show whether the current price is low or high compared with typical prices.

4. Compare the total cost, not the headline fare

A cheap fare can become expensive once you add:

• Cabin and checked baggage
• Seat selection
• Payment card fees
• Airport transfers from a distant airport
• Meals on long flights

Travelling with only a cabin bag removes the biggest extra; see our carry-on only packing list.

5. Book at a sensible time, not a magic time

There is no universal best day of the week to book. Prices for popular routes and holiday periods tend to rise as departure approaches, so for peak travel, booking well in advance is usually wise. For off-peak trips you have more room to wait for a dip. Price alerts tell you more than rules of thumb.

6. Check one-way and mixed itineraries

Two one-way tickets, possibly on different airlines, sometimes cost less than a return. Open-jaw tickets, flying into one city and out of another, can also save money and time on multi-city trips. Be aware that separate tickets do not protect you if a delay on the first flight makes you miss the second.

7. Compare with the airline's own site

After finding a good fare on a comparison site, check the airline's website. Prices are often the same, but booking direct can make changes, refunds and disruption easier to handle.

8. Use points and alliances wisely

If you fly regularly, join the frequent flyer programme of the airline or alliance you use most. Points from credit cards can offset costs, but only if you pay the balance in full; interest charges quickly cancel out any rewards.

Myths to ignore

• Browsing in incognito mode lowers prices. There is little evidence that airlines raise fares because of your cookies. Price differences between searches usually reflect real changes in availability.
• Booking at midnight on a Tuesday. Airfare pricing is too dynamic for a fixed rule.
• Last-minute is always cheaper. For most routes, especially popular ones, the opposite is often true.

Protect your booking

• Check the fare rules for changes and cancellations before paying.
• Pay with a card that offers purchase protection where possible.
• Consider travel insurance that covers cancellation for reasons outside your control.
• Know your passenger rights for delays and cancellations in the region you are flying from.