Why A Route Costs Different Amounts From Each End

A return between two cities can cost noticeably more starting from one end than the other. The aircraft, the route and the seats are identical, so the difference is entirely in the pricing.

Prices are set per market

Airlines treat each direction of a route as a separate market with its own demand curve. What people in one city will pay to visit the other is not what the reverse traffic will pay.

Where one end is wealthier, or has a stronger reason to travel, fares originating there are set higher. The airline is pricing the passenger's willingness to pay rather than the cost of carriage.

Competition differs by end as well. A city with several carriers and a nearby alternative airport constrains prices in a way a city with one operator does not.

Currency and cost of living feed in

Fares sold in a weaker currency are often lower in real terms, because the local market cannot sustain the same nominal price.

The same applies to purchasing power more broadly. A route between a rich country and a less rich one is typically cheaper booked from the poorer end.

Seasonality runs in opposite directions

Leisure demand flows one way at a time. A route to a warm coast is expensive outbound in summer from the cold end and comparatively cheap in the reverse direction.

That is why the return leg often costs more than the outbound on one trip and less on another. Each leg is priced against its own direction of demand.

What a traveller can actually do with this

Very little on a single trip, because the origin is fixed by where you live. Knowing it explains the price rather than changing it.

It becomes usable where two trips are being planned. If a friend in the other city is going to visit anyway, whichever of you books from the cheaper end can carry more of the cost.

The pricing-by-residence question

Airline sites often display fares in the currency of the country the visitor appears to be in, and the underlying fare can differ as well as the conversion.

Attempting to buy from another market brings payment-card, currency and terms-of-carriage complications that frequently exceed the saving on a short-haul ticket. Checking the price is informative; chasing it rarely pays at this trip length.