RE: AI research of the implications of higher aviation fuel prices20 Mar 2026 11:03
Here we go Thumper. The following query given to Perplexity. Sorry I struggled to find price per tonne for fuel in euros, but have price per barrel in dollars. I'm guessing the results are more linked to the change in fuel price rather than the denomination for this query. "Taking easyJet as an example, if the cost of aviation fuel increased 80 to 180 dollars a barrel how much would average fares have to be increased by to offset it?"
Response: Using easyJet’s latest numbers as a guide, an 80 → 180 dollar move in oil (i.e., +100 dollars a barrel) would likely require roughly a 15–25% increase in average fares to fully offset, assuming the shock feeds through to jet fuel and isn’t heavily hedged.
Key steps and numbers
easyJet’s fuel bill is about £2.2–2.25 billion out of total operating costs of roughly £7.9–8.0 billion, so fuel is a bit over 25% of total costs.
Airline fuel cost per seat is about £22, and total cost per seat about £77, from their FY24 results.
If oil/fuel prices roughly double (which going from 80 to 180 dollars a barrel effectively does), and you assume no extra hedging protection, then fuel cost per seat would also roughly double from about £22 to about £44 (purely as an order‑of‑magnitude estimate).
That adds around £22 per seat in extra cost on top of a baseline £77, i.e., around a 30% increase in total cost per seat.
Average one‑way fares have been around £65–70 before ancillaries in recent trading updates.
To restore the same margin, fares have to rise enough so that revenue per seat increases at least as fast as the cost per seat. If costs per seat jump about 30% and fuel was only ~25% of the cost base to begin with, raising average fares by something in the high teens to low‑20s percent (say +£10–15 on a £65–70 average ticket) would get you in the right ballpark in a simplified model.
Caveats that change the answer
Hedging: easyJet hedges large portions of its fuel, and the FY24 numbers show fuel cost per seat only moved 1% year on year despite volatile prices, so an 80 → 180 move in spot crude does not hit them 1‑for‑1 immediately.
Fuel vs crude: jet fuel prices don’t track crude exactly; the crack spread and regional premia matter, so the true pass‑through from an 80 → 180 crude move to jet fuel could be more or less than the simple doubling assumed here.
Mix and ancillaries: easyJet also leans heavily on ancillary revenue (bags, seats, holidays); they could choose to offset some of the shock through those rather than pure fare rises.
So, under a clean, unhedged, “all else equal” assumption: you are looking at roughly a mid‑teens to low‑20s percent uplift in average fares to neutralise an 80 to 180 dollar per barrel move, with any detailed answer needing an explicit fuel‑price‑to‑jet‑fuel and hedge profile to be precise.