Global air fares have climbed by nearly a quarter over the past year, driven primarily by airspace restrictions that have forced airlines to fly significantly longer routes, according to new research released Tuesday by consultancy firm Teneo.

The 24% increase represents the steepest year-over-year fare growth since the immediate post-pandemic travel surge in 2024, when pent-up demand collided with reduced capacity. But unlike that earlier spike, which reflected temporary supply-demand imbalances, the current increase stems from structural changes to global flight routing caused by ongoing geopolitical conflict.

Closed Skies Force Costly Detours

Teneo's analysis points to widespread airspace closures as the primary driver behind rising ticket costs. Airlines have been forced to reroute hundreds of flights daily to avoid restricted zones, adding substantial time and fuel consumption to journeys that previously followed more direct paths.

The most affected routes connect Europe and Asia, where carriers can no longer fly over certain territories that once served as crucial air corridors. What were previously 10-hour direct flights now require 12 to 14 hours of flying time, with some routes adding more than 1,000 nautical miles to their total distance.

"The geography of global aviation has fundamentally changed," the Teneo report states. "Airlines are burning more fuel, crews are working longer hours, and aircraft are completing fewer rotations per day—all of which translates directly into higher operating costs that passengers ultimately bear."

Fuel Costs Compound the Problem

The extended flight times come at a particularly difficult moment for airline economics. Jet fuel prices have remained elevated throughout 2026, hovering near $95 per barrel—roughly 15% above the five-year average. When combined with the additional fuel burn from longer routes, airlines face a double squeeze on their operating margins.

Industry analysts estimate that the combination of rerouting and fuel costs has added between $800 million and $1.2 billion in monthly expenses across global carriers. Those costs are being passed through to consumers with remarkable speed, as airlines adjust pricing algorithms to reflect the new operational reality.

Budget carriers, which typically operate on razor-thin profit margins, have been hit especially hard. Several low-cost airlines in Europe have already announced route suspensions on longer-haul services where the economics no longer work under current conditions.

Regional Variations in Price Impact

The fare increases have not been uniform across all markets. According to Teneo's data, routes requiring the most significant detours have seen price jumps exceeding 30%, while domestic flights and routes unaffected by airspace restrictions have experienced more modest increases in the 8-12% range.

Transatlantic routes have remained relatively stable, with average fare increases of just 11%, as these corridors have been largely unaffected by the airspace closures. North American domestic travel has seen even smaller increases, rising just 7% year-over-year—a figure more consistent with normal inflation.

The steepest increases have hit business travelers and premium cabin passengers, whose tickets are priced with less sensitivity to demand elasticity. Some business class fares on affected Europe-Asia routes have doubled compared to pre-conflict levels.

Airlines Struggle to Maintain Schedules

Beyond ticket prices, the operational challenges have forced airlines to make difficult scheduling decisions. The longer flight times mean aircraft spend more hours in the air and less time on the ground being turned around for the next departure. This reduces the number of daily flights an airline can operate with a given fleet size.

Several major carriers have responded by cutting frequencies on affected routes or deploying larger aircraft to maintain seat capacity while reducing the number of departures. Others have adjusted crew scheduling and added extra pilots and flight attendants to comply with duty-time regulations on the extended flights.

"We're essentially operating a different airline than we were 18 months ago," one European carrier executive said in a recent earnings call, speaking on background. "The network has been redrawn, the economics have changed, and we're still working through what the optimal response looks like."

Passengers Feel the Squeeze

For travelers, the fare increases come at a time when household budgets are already stretched by broader inflationary pressures. Vacation travel bookings have shown signs of softening in recent months, with some travelers opting for closer destinations or delaying trips altogether.

Corporate travel managers report increasing pressure to find alternatives to air travel where possible, including greater use of video conferencing for international meetings and a shift toward regional hubs that can be reached without crossing affected airspace.

The International Air Transport Association (IATA) has projected that global passenger numbers will still grow by 4% in 2026 despite the fare increases, though that represents a downward revision from earlier forecasts of 6% growth.

No End in Sight

Aviation industry leaders have called for diplomatic efforts to reopen closed airspace, but there are no indications that restrictions will be lifted in the near term. Airlines are instead planning for an extended period of operating under current constraints, making long-term investments in fleet planning and route networks based on the assumption that today's geography will persist.

Some carriers are exploring the possibility of adding refueling stops on ultra-long-haul routes to avoid the most problematic airspace, though this would add even more time to journeys. Others are accelerating orders for more fuel-efficient aircraft that could partially offset the economics of longer routing.

For passengers, the message is clear: higher fares are likely to persist as long as the underlying airspace restrictions remain in place. What began as a temporary disruption has evolved into a structural shift in the cost of global air travel, with no clear timeline for when—or if—the old routing patterns might return.