Quick summary
Jet fuel prices have roughly doubled since the Strait of Hormuz disruption began in late February 2026, forcing Lufthansa to cut 20,000 summer flights, Ryanair and SAS to review capacity, and pushing airfares up 15% year-over-year in the US and 70% on routes like London–Melbourne. Europe’s jet fuel stocks have fallen below 20 days of coverage — the lowest since 2020 — with the International Energy Agency warning that shortages become likely if reserves drop below 23 days.
The UK holds 31 days of coverage while Spain, Germany, and France run negative refinery balances. Even if tensions ease, delayed shipping, refinery disruption, and depleted stocks could take two to three months to recover, keeping fares elevated through the August peak travel season.
Airlines slash summer schedules as fuel reserves tighten
The closure of the Strait of Hormuz — a chokepoint for 20% of global oil and refined jet fuel — has throttled supply chains since late February. Lufthansa operated roughly half its April 2025 flight volume in April 2026, according to Eurocontrol data, and has announced plans to cut an additional 20,000 flights through the summer season.
Ryanair is reviewing its summer schedule for further reductions. SAS has already canceled approximately 1,000 flights. US carriers including Delta Air Lines, Southwest, and American Airlines have raised baggage fees and are monitoring transatlantic routes, though no capacity cuts have been announced yet.
Europe faces the most acute pressure. The International Energy Agency reported on April 25, 2026 that regional jet fuel stocks sit below 20 days of coverage — a threshold that historically signals supply stress. The agency considers 23 days the minimum buffer before physical shortages begin affecting airport operations.
The UK holds 31 days of coverage, but Spain, Germany, and France are running negative refinery balances, meaning they consume more jet fuel than they produce domestically. The European Commission is considering a mandatory fuel-sharing mechanism, with a decision expected by May 1, 2026. If approved, the policy would distribute available supplies across member states to prevent regional blackouts.
| Carrier | Action taken | Routes affected | Fare impact |
|---|---|---|---|
| Lufthansa | 20,000 summer cuts | Europe short-haul | Data pending |
| Ryanair | Schedule review | Europe intra | Data pending |
| SAS | ~1,000 cancellations | Scandinavia routes | Data pending |
| US carriers | Baggage fee increases | Transatlantic | +15% YoY average |
| London–Melbourne | Capacity reductions | Longhaul Asia-Pacific | +70% vs 2025 |
Fare increases vary by route and region. Google Flights searches on April 26 show typical fares for routes like London–Bangkok ranging from £750 to £900 for economy roundtrips, but crisis-specific spikes are hard to isolate from seasonal demand. Longhaul routes such as London–Melbourne are reported up 70% compared to 2025 levels. US routes like New York–Tokyo now cost $1,400 or more for economy roundtrips, representing a 15% year-over-year increase.
The 2022 Russia–Ukraine war offers a precedent. During that crisis, the Strait of Hormuz remained open, but Europe’s jet fuel prices still rose 80% between March and May. Lufthansa cut 10% of capacity, Ryanair fares jumped 29% for summer travel, and stocks hit 25 days of coverage before the EU released 30 million barrels from strategic petroleum reserves. Prices stabilized by July, but longhaul fares remained 15% above baseline through the third quarter.
Industry officials caution that even if geopolitical tensions ease, the recovery timeline extends well beyond the immediate crisis. Delayed shipping schedules, refinery disruption, and depleted stockpiles require two to three months to rebuild, meaning elevated fares are likely to persist through the peak summer travel season. The International Energy Agency’s next weekly oil market report, expected May 3, 2026, will provide updated stock figures that could trigger further airline decisions.
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How the crisis affects travelers by region
The fuel shortage hits hardest in Europe, where stocks below 20 days leave little margin for error. Lufthansa, Ryanair, and other European carriers have already announced tens of thousands of flight cuts, with more reductions possible if reserves continue falling. Travelers departing from London, Frankfurt, Paris, or other major European hubs face the highest risk of cancellations on both short-haul intra-Europe routes and longhaul flights to Asia.
North American travelers see higher fares — up 15% year-over-year on average — but the US maintains more robust fuel supplies. Delta Air Lines, United Airlines, and American Airlines are monitoring transatlantic routes closely but have not announced capacity cuts. Delta operates its own refinery in Philadelphia, providing a buffer against supply shocks. Travelers flying from US gateways to Asia via European hubs should verify connecting flight status, as European segments face higher cancellation risk.
Asia-Pacific routes depend heavily on Middle Eastern fuel flows, and fares to Europe have spiked in line with global trends. Carriers like Singapore Airlines and Cathay Pacific have not announced cuts, but indirect international routes through European hubs may see reductions as European carriers trim capacity. Travelers in the region should monitor airline websites for schedule changes, particularly on routes connecting through Frankfurt, London, or Paris.
Australasia faces some of the steepest fare increases, with London–Melbourne tickets up 70% compared to 2025. The fuel-intensive nature of these ultra-longhaul routes makes them particularly vulnerable to supply constraints. Qantas and other carriers may prioritize shorter routes or those with higher load factors, potentially leaving travelers with fewer options or significantly higher costs for trips to Europe or North America.
The competitive picture varies by carrier. Lufthansa operates a network-focused model with Airbus A350 and Boeing 787 aircraft, giving it flexibility to redeploy capacity, but the airline has chosen aggressive cuts to preserve cash flow. Ryanair and EasyJet fly Boeing 737s on short-haul European routes, where fuel efficiency matters less than absolute fuel availability. Delta‘s ownership of a Philadelphia refinery provides a structural advantage over competitors, though the airline still faces higher input costs.
What to do if you have a summer booking
The International Energy Agency’s warning that Europe has roughly five to six weeks of reserves remaining means travelers with bookings through June and July face material cancellation risk.
- Check airline status pages immediately. Visit airline websites directly — Lufthansa, Ryanair, SAS, and other European carriers are updating schedules as cuts are finalized. If your flight is more than 14 days out and shows as canceled, contact the airline’s 24-hour hotline to rebook or request a credit. EU261 regulations entitle passengers to €250–€600 compensation for cancellations unless the airline can prove extraordinary circumstances, which fuel shortages may qualify as.
- Consider rebooking through non-European hubs. Routes via Middle Eastern carriers like Emirates or Qatar Airways, or Asian hubs like Singapore or Hong Kong, may offer more stable schedules if you’re traveling to Asia. Search Google Flights for alternative routings and compare total travel time against the risk of European connection disruptions.
- Book refundable fares for new trips. If you’re planning travel between now and August, the uncertainty around fuel supplies justifies paying the premium for flexible tickets. US Department of Transportation rules mandate refunds for cancellations, but compensation for delays or missed connections varies by carrier and jurisdiction.
- Monitor the May 3 IEA report. The International Energy Agency’s next weekly oil market report will provide updated stock figures for Europe. If reserves fall below 23 days, expect a new wave of cancellations to be announced within days. Set a calendar reminder to check airline websites immediately after the report’s release.
Watch: The European Commission’s fuel-sharing vote on May 1 will determine whether supplies are distributed evenly across member states or whether regional shortages strand travelers in specific countries. If the policy passes, cuts may be spread more evenly; if it fails, expect concentrated disruptions in Spain, Germany, and France.
Questions? Answers.
Will jet fuel shortages affect flights within the US or Asia?
US domestic flights face minimal risk due to robust fuel supplies, though fares have risen 15% year-over-year. Intra-Asia flights are less exposed than Europe routes, but carriers dependent on Middle Eastern fuel flows may see indirect impacts if refineries remain disrupted through summer.
Are airlines required to compensate passengers for fuel-related cancellations?
EU261 and UK261 regulations cover cancellations and delays over three hours, offering €250–€600 compensation if the airline cannot reroute you within four hours. However, fuel shortages may qualify as extraordinary circumstances, which exempts airlines from compensation. US DOT rules mandate refunds for cancellations but do not require compensation for delays.
How long will elevated fares last?
Even if geopolitical tensions ease immediately, delayed shipping schedules, refinery disruption, and depleted stockpiles require two to three months to rebuild. The 2022 Russia–Ukraine crisis saw fares remain 15% above baseline through the third quarter despite supply stabilization by July. Expect elevated pricing through at least August 2026.
Should I cancel my summer trip to Europe or Asia?
That depends on your risk tolerance and ticket flexibility. If you hold a non-refundable ticket on a European carrier for travel in June or July, monitor airline status pages daily and consider rebooking through non-European hubs. If you haven’t booked yet, refundable fares or US-domestic alternatives reduce exposure to cancellations.
