How Plof Air spots a real price drop — and why most 'deals' aren't

You've seen the emails. A flight deal alert screaming 'SAVE 50%' on a route you've never heard of. Or a 'limited time flash sale' on the exact dates you were thinking about booking. The problem is most of these aren't actually deals—they're just numbers designed to make you click.

Understanding how real price drops work, and how to spot the fake ones, is the difference between finding genuine savings and paying full price while thinking you've got a bargain.

The baseline problem: what's the real price?

Here's where it gets tricky. Airlines don't have a fixed price for a seat. The same flight might be advertised at ten different prices on ten different days, and none of them is 'the real price'.

Instead, airlines use dynamic pricing. They adjust prices based on demand, time until departure, competitor pricing, and dozens of other factors. A flight to Barcelona might cost £60 on a quiet Tuesday, then jump to £140 on a Friday, then drop back to £75 a month later when bookings are slow.

So when you see a headline claiming 'flights down 40% from last week,' you need to ask: compared to what? If last week was peak Easter holiday pricing, then yes, it's cheaper. But that's not the same as it being a good deal historically.

The fake deal playbook

Most travel deal alerts use a simple trick: they compare today's price to the highest price seen in the past few weeks, then announce a 'drop' even if the actual price is still well above average.

Example: A flight to Madrid peaked at £180 during summer holiday season (obviously). Now it's August and nobody's booking—the price falls to £95. An alert fires: 'Prices down 47%!' But if this route normally runs around £70-85 outside holidays, that £95 isn't a real deal. It's just less of a rip-off than peak season.

Other common tricks include:

• Comparing to inflated 'list prices' airlines show when a flight is scarce. You're not really getting a discount—they're just being less aggressive.
• Setting the baseline to the highest price ever recorded. A route that's been £60-90 for months might spike to £120 for one week, then drop to £85. 'Down 29%!' they shout. But you're still paying above the real average.
• Including routes with questionable value. A £40 flight sounds great until you realise it leaves at 6 AM, arrives at midnight, and requires a connection. The price is low because demand is low.

What actually matters: the baseline

To spot a real deal, you need to know what prices actually look like on a route over time.

Have you checked Lisbon in the last three months? You'll notice prices tend to sit between £55 and £75 for off-peak dates. A drop to £45 is worth attention. A drop to £70 when prices are usually £75 is just noise.

The way to build this knowledge is simple: watch a route you're interested in. Look at departures two weeks out, one month out, six weeks out. Track what you see. Within a few weeks you'll have a sense of the normal range. Then when prices actually move below that range, you'll know something real happened.

Tools like Plof Air let you browse live flight and hotel package prices from London airports like Stansted and Luton, and set up alerts for specific routes. Rather than getting bombarded with marketing noise, you're watching real data on routes you actually care about. That's how you actually spot drops—by knowing what normal looks like first.

Why prices actually fall (and when to act)

Real price drops usually happen for these reasons:

• Increased competition. A new airline launches on a route, or an existing carrier adds more flights. Suddenly there's capacity to fill, and prices compress. If you're watching Dublin routes and a new airline starts flying it, prices will likely drop for a window—often a few weeks as they try to build market share.
• Seasonal slump. A destination naturally quiets down after peak season. Prices drop because airlines need to fill seats. September flights to Palma are cheaper than August. Obvious, but real.
• Fuel costs shift. When oil prices fall significantly, airlines sometimes (emphasis: sometimes) lower fares. It's not automatic, but it does happen. Watch for it on heavily-competed routes first—airlines drop prices more readily when they're fighting for market share.
• Currency movements. If the pound strengthens against the euro, flights to European destinations become noticeably cheaper relative to historical baselines. This is real savings.

When to book

Once you've spotted what looks like a real drop, don't assume it'll stay there. Real deals can evaporate in hours or days, especially on popular routes from Stansted and Luton to destinations like Porto or Malaga in shoulder season.

If you've been watching a route and you see prices noticeably below what you've come to expect, and your travel dates work, book it. Waiting for it to drop further usually costs more than the savings would be.

The real skill isn't finding deals in your inbox—it's knowing your routes well enough to recognise one when it actually arrives.