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Why do flight fares change all the time instead of having fixed fares like buses and trains?

Sarah Jenkins
Sarah Jenkins
Lead Content Curator · Mar 9, 2026 · Updated Apr 13, 2026

Trains and busses for public transportation are regulated and subsidized by the government. The city or state will have a transit authority or department of transportation negotiate and partially subsidize a fixed price. Public transportation is subsidized by the government as a public service an…

72
Words

1 min
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#212
of 500 in Science

+0%
vs Category Avg

The Short Answer

Trains and busses for public transportation are regulated and subsidized by the government. The city or state will have a transit authority or department of transportation negotiate and partially subsidize a fixed price. Public transportation is subsidized by the government as a public service and to encourage commerce and employment by having cheap transportation from residential areas to business districts. Airlines are not considered public transportation so their prices are not regulated.

Analysis

Key Concepts: Transportation, public, regulated

This explanation focuses on transportation, public, regulated and spans 72 words across 4 sentences. The depth is typical for Science questions (category average: 72 words), striking a balance between accessibility and completeness.

What This Answer Covers

The explanation opens with: “Trains and busses for public transportation are regulated and subsidized by the government.” It then elaboratesultimately building toward a complete picture across 4 connected points.

How This Compares in Science

Ranked #212 of 500 Science questions by answer depth (top 43%). This falls in the detailed tier — above average depth. The explanation goes beyond surface-level but keeps things accessible.

Frequently Asked Questions

Is there a simple explanation for why flight fares change all the time instead of having fixed fares like buses and trains?

Trains and busses for public transportation are regulated and subsidized by the government. The city or state will have a transit authority or department of transportation negotiate and partially subsidize a fixed price. Public transportation is…

How detailed is this explanation compared to similar Science questions?

This is an above-average answer at 72 words, ranked #212 of 500 Science questions by depth. The key concepts covered are transportation, public, regulated.

What approach does this answer take to explain flight fares change all the time instead of having fixed far?

The explanation uses direct explanation across 72 words. It is categorized under Science and addresses the question through 1 analytical lens.