International Airlines Group reports third-quarter results on Friday 6 November, and the figure the market most wants to test is the up-to-€8.6bn full-year fuel bill it guided to in July.

The number that frames everything

International Consolidated Airlines Group (LSE:IAG) heads into Friday's results with momentum. Its shares rose 3.8% on Monday 2 November 2026 as Brent Crude tumbled, helping the FTSE 100 to a fourth straight gain and a close of 10,761.33.

But a one-day rally is not a set of accounts. When IAG last reported, for the second quarter to 30 June, it gave investors a clear marker: a full-year fuel bill of up to €8.6bn. That was lower than the €9bn it had guided to before. Friday's update is the first chance to see how that marker is holding up.

Fuel was the cost that did the most visible damage last time. In the second quarter, fuel costs rose by nearly 25%. Adjusted operating profit fell 16% to €1.41bn, even as Revenue edged up 0.2% to €8.9bn. The profit figure did beat the €1.38bn analysts had pencilled in, but the direction was plain: higher fuel squeezed earnings.

Four things Friday has to show

1. Whether the €8.6bn ceiling still stands. The guidance was described as "up to" €8.6bn. Investors will be watching whether IAG repeats it, trims it again or lifts it. No updated figure has been published, and this article makes no prediction.

2. How much of the cost is being passed on. In July, IAG said it expected to recover about 60% of the higher fuel cost. That Recovery Rate is crucial, because the remaining share falls on the airline. The third quarter covers the busy summer season, so it will offer a meaningful read on whether that 60% assumption is holding.

Illustration: if an airline faced an extra €1bn in fuel costs and recovered 60%, it would claw back €1bn × 0.6 = €600m, leaving €400m to absorb. If the recovery rate slipped to 50%, the absorbed amount would rise to €500m. These figures are hypothetical and are not IAG's actual cost increase.

3. Whether flat capacity is still the plan. IAG said 2026 capacity was now expected to be flat. Capacity decisions and fuel costs are closely linked for any airline: flying less, or the same amount, caps how much fuel is burned. Any change to that guidance would reshape the fuel outlook.

4. What the guidance cut was worth. Illustration: the move from €9bn to €8.6bn represents a reduction of €400m. Set against second-quarter adjusted operating profit of €1.41bn, that saving equals a little over a quarter of a single quarter's profit, since €0.4bn ÷ €1.41bn ≈ 28%. The comparison sets a full-year guidance change against one quarter's profit, so it is a sense of scale rather than a like-for-like measure, but it shows why the fuel line attracts so much scrutiny.

Why Monday's oil slump raises the stakes

The timing of Friday's results is striking. On Monday, Brent fell to $105.09 a barrel at the London close, down from $117.61 on Friday, a drop of about $12.52. By the US close, one report had it settling 7.63% lower at $104.77. West Texas Intermediate fell 7.36% to $96.46, its biggest daily drop since 27 July.

The reason was diplomacy. Reports said Washington and Tehran were weighing renewed indirect negotiations, while Iran–Qatar talks raised hopes of an end to the US–Iran conflict. Iran was reported to have offered to reopen the Strait of Hormuz under strict conditions.

That leaves IAG reporting into a very different oil market from the one in which it last set guidance. Yet the third quarter itself ended on 30 September, before Monday's slide. The results will reflect what IAG actually paid over the summer, not this week's prices. Any commentary on the outlook, by contrast, will be read against a much cheaper barrel. Chief executive Luis Gallego's remarks on fuel could matter as much as the reported numbers.

The Volatility cuts both ways. Iran's Revolutionary Guards said 11 tankers they accused of "violating" navigational rules had caught fire in the Strait of Hormuz since 25 October. Talks have not produced an agreement, and prices could rebound if diplomacy falters.

Fuel will dominate Friday, but it will not be the only test. In July, IAG reported that net Debt had fallen by just over a fifth to €4.7bn and that about €800m of its €1.5bn share buyback was complete. Updates on both will show how much financial flexibility the group retains.

The Dividend is the other headline in waiting. IAG paid a 2025 total dividend of €0.098 per share, up 8.9%, and promised guidance for 2026 with Friday's results.

Friday will be busy beyond IAG. US October payrolls arrive the same day, after September's gain of 29,000 jobs and 4.2% unemployment. The day before, the Bank of England is expected to raise Bank Rate from 3.75% to 4%, which markets price at about 95%. A rise would be the first in more than three years and would land just as investors weigh the outlook for consumer spending, including on travel.

Sector sentiment is supportive heading in. On Monday, the FTSE 350 travel and leisure sector rose 2.7%, the best of the day, and reports tied the gains in airlines and other consumer-facing stocks to lower oil.

Key dates to watch

  • Tuesday 3 November: US midterm elections
  • Thursday 5 November: Bank of England rate decision
  • Friday 6 November: IAG third-quarter results, with 2026 dividend guidance
  • Friday 6 November: US October payrolls
  • Thursday 12 November: UK GDP first quarterly estimate for July–September, 7:00am

The bottom line

IAG's up-to-€8.6bn fuel guidance is the anchor for Friday's third-quarter results. The market will want to know whether that ceiling holds, whether the 60% cost-recovery assumption survived the summer, and whether flat capacity remains the plan. Monday's 3.8% share-price rise shows how sensitive IAG is to oil. Friday will show whether the numbers, and the outlook that comes with them, live up to that optimism.