Visualized: Key Highlights from OAG Air Travel Statistics 2025

Airways Newsroom

January 1, 2026

DALLAS — In its latest Air Travel Statistics update, aviation data provider OAG reports that worldwide airline seat capacity has climbed to new highs in 2025, reflecting resilient consumer demand, rising international connectivity, and ongoing post-pandemic recovery momentum.

The findings highlight both the industry’s operational progress and the structural challenges carriers continue to navigate as networks scale back to and beyond pre-COVID levels. Below are five data visualization snapshots. Hover or tap chart bars for detailed figures.

OAG Key Air Travel Statistics in 2025

Global Seat Capacity Extremes in 2025

Busiest vs quietest day for airline seats

Friday 1 August was the busiest day for air travel with 19.83 million scheduled seats, while Tuesday 28 January saw just over 15.2 million seats.

Source: OAG – Air Travel Statistics 2025.

Top 5 Airlines by Seats Operated (2025)

Annual scheduled seats, worldwide

American Airlines leads with 279.6M seats, followed by Delta, Southwest, United and Ryanair.

Source: OAG – Air Travel Statistics 2025.

Top 5 Airlines by Flights Operated (2025)

Total number of flights, worldwide

American also leads by frequency with 2.3M flights, ahead of Delta, United, Southwest and Ryanair.

Source: OAG – Air Travel Statistics 2025.

Top 5 Airlines by Available Seat Kilometres (ASKs)

ASKs, billions

United leads on long-haul capacity with 536.5bn ASKs, narrowly ahead of American and Delta.

Source: OAG – Air Travel Statistics 2025.

Busiest Airline Routes (100+ Flights Per Day)

Average daily flights on top domestic routes in 2025

Jeju–Seoul Gimpo (CJU–GMP) tops the list with 194 daily flights, with seven other domestic routes exceeding 100 flights per day.

Source: OAG – Air Travel Statistics 2025.

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Featured image: Chris Goulet/Airways

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