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Explained in plain English

What is an airline's biggest cost?

Jet fuel is typically an airline's largest single operating expense. IAG expects its full-year fuel bill to hit 8.9 billion euros, demonstrating its massive impact on their profitability. Fluctuations in oil prices directly affect how much airlines pay, influencing their financial results and ticket prices.

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IAG's quarterly profit falls 12.9% as jet fuel costs jump

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