According to the source, these figures reflect the situation of IATA's members, which encompass 240 airlines and make up 84 percent of global air traffic.
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Available seat kilometers (ASK) in international air traffic by region 2025
In May 2025, the highest increase in available seat kilometers (ASK) was registered in the Asia-Pacific region, with **** percent compared to May 2024. Conversely, North America only increased its ASK by approximately *** percent year-on-year.
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IATA. (June 30, 2025). Year-on-year change in available seat kilometers (ASK) in international air traffic in May 2025, by region [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 30, 2026, from /statistics/234939/available-seat-kilometers-in-international-air-traffic/
IATA. "Year-on-year change in available seat kilometers (ASK) in international air traffic in May 2025, by region ." Chart. June 30, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 30, 2026. /statistics/234939/available-seat-kilometers-in-international-air-traffic/
IATA. (2025). Year-on-year change in available seat kilometers (ASK) in international air traffic in May 2025, by region . ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 30, 2026. /statistics/234939/available-seat-kilometers-in-international-air-traffic/
IATA. "Year-on-year Change in Available Seat Kilometers (Ask) in International Air Traffic in May 2025, by Region ." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Jun 2025, /statistics/234939/available-seat-kilometers-in-international-air-traffic/
IATA, Year-on-year change in available seat kilometers (ASK) in international air traffic in May 2025, by region ÌÇÐÄÆƽâ°æ, /statistics/234939/available-seat-kilometers-in-international-air-traffic/ (last visited July 30, 2026)
Year-on-year change in available seat kilometers (ASK) in international air traffic in May 2025, by region [Graph], IATA, June 30, 2025. [Online]. Available: /statistics/234939/available-seat-kilometers-in-international-air-traffic/
