AIRLINE FREQUENCY AND CAPACITY STATISTICS

WHICH IS THE Biggest AIRLINE IN THE WORLD THIS MONTH?

• American Airlines remain the largest airline in the world in terms of frequencies, with 189,100 frequencies for this month, which is 39,900 more than Delta Air Lines, the second largest airline in the world by this metric.
• United Airlines is showing the strongest growth in terms of extra flying, 10,500 more frequencies than last year, followed closely by American Airlines which is up 10,200 frequencies.
• IndiGo continues to be the airline showing the fastest rate of growth, up 13% compared to last year and Deutsche Lufthansa AG continues to show the largest rate of decline, down 7.3% in terms of frequencies compared to last year.

WHERE IS MOST DOMESTIC CAPACITY THIS MONTH?

• The USA remains the largest domestic market with 88.4m seats in the market this month, which is over 19.8m seats larger than the second largest domestic market China with 68.5m seats.  
• India continues to be the fastest growing domestic market in the Top 10, showing a growth rate of 9.7% on last year, followed closely by Mexico which is up 9.1%.
• Indonesia is the market in the Top 10 showing the largest rate of decline, down 9.9% of last year, a trend continuing on from last month. The other markets in decline this month are Spain (-2.8%),  Australia (-1.4%), and Turkiye (-1.1%).
  

WHICH TWO COUNTRIES VISIT EACH OTHER MOST?

• Spain - UK is the largest international market with 4.70m seats in the market this month, which is over 263,000 seats larger than the second largest international market, Mexico - USA with 4.43m seats, the positions of the top two markets having swapped compared to last month with the start of the IATA summer season.  
• China - Japan remains the market in the Top 20 with the largest growth rate, up 49.4% on last year, followed by China - Republic of Korea (+23.3%) and China - Hong Kong (16.7%).
• France - Italy is the market in the Top 20 showing the largest rate of decline, down 3.4% on last year. The other markets in decline this month compared to April 2024 are Canada - USA (-3.3%) and UK - USA (-1.2%).
  

WHICH WORLD REGION HAS MOST FLIGHT CAPACITY?

• Global capacity in April 2025 will reach 501.6m seats, an increase of 4% on April 2024, which equates to an extra 20.8m seats.
• The largest region is North America with 110.2m seats in capacity, followed by North East Asia with 108.6m seats.
• The region with the largest growth in seat capacity this month is Western Europe where capacity is up by 4.2m seats to 105.4m compared to last year.
• The regions with the largest growth rates are Central Asia and North Africa, where capacities are up 16% and 11% respectively.
• Central/Western Africa is the only region showing a decline in capacity versus last year, which is down 5.7%.
  

All data is sourced from OAG Schedules and is for the current month and previous months stated per chart. Data is unadjusted for the leap year effect. 

The categories are defined below:

1. The scheduled flight counter shows the number of flights in the schedule from the first day of the year up until the end of the current week.
2. Weekly airline capacity shows total global (international + domestic) capacity, international capacity and domestic capacity, measure in seats. It is plotted weekly with a forward view of filed scheduled capacity for the 11 weeks ahead, showing the overall 3 months forward-looking position.
3. Top 20 Airlines are the 20 largest global airlines by flights based on the current month.
4. Top 20 Country Pairs are those international country pairs with most seat capacity based on the current month.
5. Domestic Markets are the 10 largest markets by seats.
6. Seats by Region is seat capacity for the current month to, from and within each global sub region.