Anatomy of a cheap ticket: bags, seats, changes
The headline price is a deposit. Here is how a $189 round trip becomes $486 before you even reach the airport — and the four line items to add up before comparing.
The price on a comparison site is not the price of the trip: it is the price of bare transport. This is not a scam, it is an unbundling choice — sell the essential very low, charge separately for everything around it. You just have to redo the arithmetic before comparing.
The full total
Take a round trip advertised at $189. It is not false, it is incomplete.
| Line item | Added | Running total |
|---|---|---|
| Headline price | — | $189 |
| Checked bag, both ways | +$140 | $329 |
| Seat selection, for two | +$50 | $379 |
| Shuttle from the secondary airport | +$60 | $439 |
| 6:10 a.m. departure: hotel or night taxi | +$47 | $486 |
The $189 ticket exists. The $189 trip does not.
The four items to add every time
Baggage. The heaviest and most predictable. Check what is included: hold, cabin, size and weight. Some fares even limit the cabin bag to one item under the seat.
The seat. Optional alone, hard to avoid as a couple or a family. Without a reservation, assignment is automatic and often splits you up — see four tickets, one budget.
Ground transport. An airport 70 km from the centre changes the equation, especially if the flight lands after the last train.
The schedule. A departure before 7 a.m. or an arrival after midnight costs a night or a taxi. It is not a line on the invoice, it is one on the spend.
Why the cheapest shown is rarely the cheapest paid
Because these extras are not distributed at random. The lowest fare is almost always the one including the least — that is what lets it be the lowest.
A $289 fare with nothing and a $355 fare with a checked bag are not $66 apart. With a bag each way, the first becomes $429: it costs $74 more.
The displayed gap said the opposite of the truth.
What the premium sometimes genuinely buys
Not every inclusion is comfort. Paying more also buys the ability to change your mind: fee-free changes, partial refunds, miles credited at full rate.
On a certain trip, that is worth nothing. On one that might move, it is often worth more than the price difference. What each fare band actually covers is detailed in why two seats side by side do not cost the same.
The right method, in three moves
1. Fix your real configuration before searching: how many bags, what schedule is acceptable, which airport is reachable. 2. Compare totals, never headline prices. 3. Put those requirements into the search, not into a final check.
The third is what saves time. A Kestrelia alert treats included baggage, schedule and airport as selection criteria: a headline fare that fails your constraints never reaches you — even if it is the lowest on the page.
The habit worth building is putting these criteria into the alert itself, so the arithmetic is done before you ever see a price.