The price gap changes the calculation
Travelers rarely compare a ticket price in isolation. They weigh it against the time, convenience, and other costs of the whole trip. When airfare rises sharply, the train’s long journey can feel less like wasted time and more like a tolerable trade for keeping money in the budget.
That shift is strongest for people who can adjust their plans. A traveler with a fixed arrival time may still need the flight; someone with a flexible schedule may decide that the savings justify an overnight ride or a day spent aboard. The train has not gained speed or comfort. Its value has increased because the alternative now costs more.
A fare change can move demand
Airlines often vary prices as seats sell and expected demand changes. A sudden fare jump can push some travelers toward trains, buses, or postponing the trip. This is called substitution: when one option becomes more expensive, people consider a different way to meet the same need.
But the switch depends on more than the headline fare. Travelers may also compare getting to the station or airport, baggage charges, departure times, and the cost of arriving later. A cheaper rail ticket is not automatically the better deal if the schedule creates other expenses or the traveler cannot spare the time.
For transport providers, these choices matter because demand is not fixed. A costly flight can make a slower service newly competitive—without the train changing at all.
