For airlines, fuel is often the single biggest cost after staff, and it can swing wildly. When oil prices jump, airline shares tend to fall, ticket prices tend to rise and holidaymakers feel the pinch. Understanding what moves jet fuel prices helps explain all of that, and it gives traders a clearer view of one of the most fuel-sensitive industries in the market.
What jet fuel is
Jet fuel is a refined product made from crude oil. The most common type for commercial aircraft is a kerosene-based fuel. It belongs to the middle distillates family, alongside diesel and heating oil, which means it competes for the same part of each barrel that refineries process.
Crude oil is the starting point
The biggest influence on jet fuel is the price of crude oil. When Brent or WTI rises, jet fuel usually rises too. Supply decisions by major producers, geopolitical tensions in oil-producing regions, global economic growth and inventory levels all feed through. Our guide to Brent crude explains the main benchmark.
Refining margins
Jet fuel does not move one for one with crude. The difference between the price of crude and the price of refined products is known as the crack spread, and it reflects how tight refining capacity is. If refineries struggle to produce enough middle distillates, because of outages, maintenance or a loss of supply from a major exporter, jet fuel and diesel can rise much faster than crude. Our guide to crack spreads explains how those margins work.
Demand from air travel
Demand depends on how much people and goods are flying. Air travel tends to rise with economic growth and incomes, peaks in summer holiday seasons and falls sharply in crises. The pandemic showed how quickly demand can collapse when flights stop. Competition with diesel matters too: when diesel demand from trucking, farming or heating is strong, it can pull up the price of the whole distillate complex.
Supply routes and disruptions
Jet fuel is traded internationally, and some regions rely heavily on imports. Disruptions to shipping lanes, sanctions on major exporters or conflict near refining hubs can tighten local supply quickly. Prices in Europe, Asia and the US can diverge for a while when trade routes are disrupted.
How airlines manage the risk
Many airlines hedge some of their future fuel needs using derivatives, locking in prices for months ahead. That smooths costs but does not remove the risk, because hedges eventually roll off and are replaced at current prices. Airlines that hedge less benefit more when prices fall but suffer more when they rise. Some pass higher costs on through fares or fuel surcharges, although competition limits how much they can do that.
What it means for traders
Airline shares are often among the most sensitive to oil prices in the stock market. When crude spikes on geopolitical news, airlines frequently fall while energy companies rise. Traders watch fuel prices, hedging policies disclosed in results and demand trends to judge which airlines are most exposed. Higher jet fuel costs can also feed into inflation through airfares, which matters for central banks.
The beginner takeaway
Jet fuel follows crude oil, but refining capacity, travel demand and supply routes all add their own twists. For airline investors, it is one of the first things to check. If you want to see how well you connect events like these to your trading decisions, take the free Samuel & Co Trading Trader Assessment.
