The Philippines has solidified its position as Southeast Asia’s fastest-growing aviation market, bucking a broader regional trend of capacity contractions.
According to the latest data released by global travel data provider OAG, the country recorded a 6 percent growth in airline capacity, reaching 5.7 million seats in May 2026 compared to the same period in 2025.
OAG attributes this impressive growth largely to the aggressive expansion of Cebu Pacific Air, combined with the Philippines’ unique archipelagic geography—which makes air travel essential—and sustained, robust demand for domestic tourism.
The Philippines stands out as the only major nation in Southeast Asia to experience domestic growth, with its domestic capacity increasing by 8.2 percent (representing 305,000 additional seats) compared to May 2025.
In stark contrast, the rest of Southeast Asia’s aviation landscape is grappling with a severe capacity crunch. Major regional markets have faced notable contractions:
-
Indonesia remains the region’s largest overall market with 10 million seats, but suffered a 7 percent drop in capacity (751,800 fewer seats) compared to last year. It also remains the biggest domestic market at 8.1 million seats, despite a 6.2 percent (536,000 seats) decline.
-
Thailand, the region’s second-largest market, saw capacity shrink by 4.7 percent (335,900 fewer seats) to 6.7 million.
-
Vietnam, Singapore, and Malaysia also posted significant capacity losses, shedding 522,300, 104,200, and 74,600 seats, respectively.
AirAsia maintains its crown as Southeast Asia’s largest carrier, offering 2.66 million seats this month, despite a contraction of 8.1 percent compared to May 2025. However, the Philippines-based Cebu Pacific Air is now a close second, closing the gap rapidly by increasing its capacity at a market-leading rate of 16.2 percent to reach 2.64 million seats.
Conversely, other low-cost carriers (LCCs) in the top 10 are facing severe headwinds. Vietjet, Lion Air, and Thai AirAsia recorded the steepest capacity reductions, plummeting by 38.5 percent (975,000 fewer seats), 24.2 percent (676,000 fewer seats), and 21.4 percent (399,000 fewer seats), respectively. OAG noted that even prior to the ongoing fuel crisis, these LCCs were already vulnerable due to persistent aircraft shortages, maintenance delays, and razor-thin operating margins unable to absorb economic shocks.
Southeast Asia’s scheduled air traffic currently spans 182 airlines operating across 284 airports. Singapore Changi Airport retains its status as the region’s busiest hub with 3.5 million seats, though its capacity dipped by 2.9 percent compared to last year. Meanwhile, Kuala Lumpur International Airport secured the second spot with 3.2 million seats, marking a steady 1.1 percent increase from May 2025.
The hardest-hit hubs within the region’s top 10 airports were Ho Chi Minh City (Vietnam), down 12 percent; Makassar (Indonesia), down 11 percent; and Denpasar-Bali (Indonesia), down 10.9 percent.
The May 2026 OAG data highlights a shifting dynamic in Southeast Asian aviation. While legacy challenges and fuel pressures weigh down traditionally dominant markets, the Philippines’ strategic reliance on aviation and strong domestic momentum have allowed it to chart a highly successful, counter-cyclical growth path.
