Why Are Flights So Expensive? The 2026 Causes and Fixes

Flights are expensive in 2026 mainly because jet fuel prices surged after the Middle East war disrupted the Strait of Hormuz in late February, while airlines are short of new aircraft and are already flying fuller planes than ever. With fuel up, seats scarce and fewer low-cost competitors after Spirit Airlines stopped flying in May 2026, airlines have been passing costs straight on: US airfares were 23.4% higher in August 2026 than a year earlier, according to the US Bureau of Labor Statistics.

Why Flights Are So Expensive Right Now

Several cost and supply pressures have landed at once:

• Fuel: the biggest and most sudden increase.
• Too few aircraft: Boeing and Airbus are still delivering fewer planes than airlines ordered, and engine problems keep hundreds of jets on the ground.
• Full planes: demand has held up, so discounts are rare.
• Labour: wages are airlines' largest cost after fuel, and still rising.
• Less competition: four airlines carry most US domestic traffic, and an ultra-low-cost carrier has disappeared.
• Taxes and fees: several countries have raised them, especially on long-haul flights.
• Dynamic pricing: fares rise as cheap seats sell out.

Jet Fuel Prices

Fuel is the cost airlines can control least. The war in the Middle East disrupted shipping through the Strait of Hormuz from late February 2026, and jet fuel prices more than doubled within weeks. The International Air Transport Association (IATA) expects jet fuel to average $152 a barrel in 2026, almost 70% above 2025.

In its June 2026 industry outlook, IATA expects jet fuel to average $152 a barrel in 2026, up about 70% from $90 in 2025. That lifts the global airline fuel bill from $252 billion to around $350 billion, and fuel's share of airline operating costs from 25.4% in 2025 to 31.4% in 2026.

Airlines that hedged (bought fuel in advance at fixed prices) have been partly shielded. But IATA expects ticket prices to keep rising as the full cost works through, and many airlines have added or raised fuel surcharges on international tickets.

Aircraft Shortages and Engine Groundings

Airlines would add more seats if they could get the planes. IATA puts the global order backlog at 18,100 aircraft in May 2026, more than half the size of the active fleet, and says airlines are short of more than 5,000 fuel-efficient replacement aircraft they had expected by now. The average fleet age has reached a record 15.2 years, and IATA estimates supply chain failures cost airlines at least $11 billion in 2025 through higher leasing, maintenance and fuel costs.

Engines are a second bottleneck. A powder-metal defect found in 2023 affected more than 3,000 Pratt & Whitney geared turbofan (GTF) engines, which power the Airbus A320neo family, the A220 and the Embraer E2. The inspections have kept many A320neo-family jets parked. Pratt & Whitney's parent RTX said in July 2026 that the number of grounded aircraft had fallen 25% so far that year, but airlines such as Wizz Air and IndiGo expect the problem to continue through the end of 2027.

Fewer aircraft means fewer seats chasing steady demand, which means higher fares.

Demand Is Strong and Planes Are Full

IATA expects 5.1 billion passenger journeys in 2026 and a record 84% load factor, meaning airlines expect to sell 84 of every 100 seats they fly. When planes are this full, airlines have little reason to discount.

IATA also expects passenger ticket yields (the revenue an airline earns per passenger kilometre) to rise by 7% in 2026. Even so, IATA forecasts airline profit of just $4.50 per passenger in 2026, half the 2025 level, because costs are rising faster than fares.

Labour Costs

Labour is the largest airline cost apart from fuel. IATA expects airlines to spend $271 billion on labour in 2026, 4.0% more than in 2025, with the global airline workforce growing to around 3.33 million people.

Fewer Airlines, Less Competition

In the US, four airlines dominate. Bureau of Transportation Statistics data for July 2025 to June 2026 shows Delta (17.9%), American (17.7%), Southwest (17.1%) and United (17.1%) together carrying nearly 70% of domestic passenger traffic, measured in revenue passenger miles.

The low-fare end of the market has also shrunk. Spirit Airlines stopped flying on 2 May 2026 after two bankruptcies since 2024, a blocked merger with JetBlue and the jump in fuel costs. Spirit had been the ninth-largest US airline by seat capacity. When a low-cost rival leaves a route, the remaining airlines face less pressure to match its prices.

Why Are Taxes and Fees So High on Flights?

Taxes and fees are set by governments and airports, not airlines, and most are charged per passenger, per flight segment or per airport, so they weigh most on cheap fares and itineraries with connections. Several countries have also raised aviation taxes recently.

In the US, a typical domestic ticket includes the charges below (rates for 2026, from the FAA and Airlines for America):

As a worked example using those rates, a $250 return fare with one connection each way could carry about $18.75 in ticket tax, $21.20 in segment tax (four segments), $11.20 in security fees and up to $18 in airport charges: roughly $69 on top of the fare.

Other countries add their own charges. From 1 April 2026, the UK's Air Passenger Duty is £15 for economy flights up to 2,000 miles, £102 for 2,001–5,500 miles and £106 beyond that, with premium cabins paying £32, £244 and £253. France raised its solidarity tax in March 2025, with long-haul economy rising from €7.51 to €40.

On international tickets, the "taxes and fees" line can also include carrier-imposed surcharges (often coded YQ or YR), which are charged by the airline rather than a government. These are the charges many airlines raised in 2026 to cover fuel.

Why International Flights Cost More

Long-haul flights burn far more fuel, so the 2026 fuel shock hits them hardest, and they attract higher taxes such as the UK and French long-haul rates above.

Airspace closures add distance. Most Western airlines have avoided Russian airspace since 2022, adding hours to some Europe–Asia flights. Since February 2026, closed or severely restricted airspace across much of the Middle East has forced further detours and disrupted the Gulf hubs that connect Europe with Asia and Australia; IATA reports Middle East traffic fell by almost 60% in March and April. Longer routes mean more fuel and crew hours, which feed into fares.

Dynamic Pricing: Why Fares Rise Near Departure

Airlines sell seats on the same flight at many different prices. Each flight is split into fare classes (often called "buckets"), and revenue management systems open and close them based on how many seats have sold, past demand on that route, competitor prices and how close departure is. When the cheapest bucket sells out, the lowest available fare jumps to the next level.

Prices tend to climb in the final weeks because late bookers, such as business travellers, are less sensitive to price, and with planes 84% full on average, cheap buckets sell out sooner.

How to Pay Less

The forces above can't be avoided, but timing and flexibility still make a real difference.

1. Book in the right window. Google Flights data for US departures (published October 2026, five years of data) shows domestic fares lowest about 39 days before departure, within a typical range of 22–57 days. International fares were lowest about 89 days out, with little difference across a 50–133 day window.
2. Book holidays early. The same data puts the cheapest Christmas fares about 56 days before departure (33–67 days), so late October to mid-November, and Thanksgiving about 34 days out.
3. Fly midweek. Google found weekday departures about 14% cheaper than weekend flights. The day of the week you book barely matters: Wednesday was only about 1.4% cheaper than Sunday.
4. Accept a connection. Nonstop tickets averaged 20% more than flights with a stop.
5. Be flexible on dates and airports. Use the date grid or "flexible dates" view on Google Flights or Skyscanner, and check nearby or secondary airports, which can have different airlines and fares.
6. Set fare alerts. Google Flights price tracking can email you when a route drops. Going (formerly Scott's Cheap Flights) sends deal alerts, including mistake fares, with free and paid tiers.
7. Travel in shoulder season. Spring and autumn usually avoid peak summer and holiday demand while still offering decent weather in many destinations.
8. Use points and miles. Award seats are priced in miles rather than cash, so they can be especially good value when cash fares spike, though you still pay taxes and, on some airlines, carrier surcharges.
9. Be careful with separate tickets. Booking two cheaper one-way or self-connecting tickets can save money, but the airlines have no obligation to help if a delay makes you miss the second flight. Leave long connection times and consider travel insurance.

Are Flights Actually More Expensive Than They Used to Be?

In the short term, yes: US airfares rose 23.4% in the year to August 2026. Over the longer term, flying has become cheaper in real terms. IATA expects the average return fare in 2026, including extras and adjusted for inflation, to be $462, which is 26.3% lower than in 2016. The current spike is mainly a cost shock, and fares will depend heavily on where fuel prices go next.

Frequently Asked Questions

Why are flights so expensive right now?

Jet fuel prices more than doubled after shipping through the Strait of Hormuz was disrupted in late February 2026. Add a shortage of new aircraft, record-full planes and fewer low-cost airlines, and fares have risen sharply.

Why are international flights so expensive?

Long-haul flights use far more fuel, pay higher taxes such as UK Air Passenger Duty, and often carry airline fuel surcharges. Airspace closures over Russia and parts of the Middle East also force longer routes, which adds fuel and crew costs.

Why are taxes and fees so high on flights?

Most taxes and fees are charged per passenger, per flight segment or per airport, so they add up on itineraries with connections. In the US they include a 7.5% ticket tax, $5.30 per segment, a $5.60 security fee and up to $4.50 per airport, and several countries have raised aviation taxes recently.

Why is flying so expensive in 2026 compared with last year?

US airline fares were 23.4% higher in August 2026 than a year earlier, according to the Bureau of Labor Statistics. The main cause is the fuel shock, made worse by aircraft delivery delays, engine groundings and Spirit Airlines ceasing operations in May 2026.

Why do plane tickets get more expensive closer to the flight?

Each flight is sold in fare classes and the cheapest sell out first, while late bookers are usually willing to pay more.

When is the cheapest time to book a flight?

Google Flights data for US departures shows domestic fares lowest about 39 days before departure and international fares about 89 days out.

Will flights get cheaper?

That depends mostly on fuel. If jet fuel prices ease, fares should soften. More aircraft are coming too: IATA forecasts 2,357 deliveries in 2027, up from 1,794 in 2026, though the order backlog is still growing rather than shrinking.