Largest Airline Fleets in the World
Fleet size is one of the cleanest ways to measure scale in commercial aviation, but the top of the list depends on what you count. American, Delta and United dominate the mainline passenger ranking — each operating close to or above 900 jets. Some carriers prefer a single-type fleet for operational simplicity (Southwest with the 737, Ryanair with the 737, Wizz Air with the A320 family); others build sprawling, multi-type fleets to fit every route. And once you include cargo, FedEx — with roughly 700+ jets — has the largest aircraft fleet of any operator on the planet.
The Top 3 Passenger Mainline Fleets
American Airlines
Largest mainline passenger fleet in the world. Operates 737s, A319/320/321, 787, 777 and the last US passenger 777-200ERs.
Delta Air Lines
Often cited as #1 depending on count method. Most diverse mainline fleet of any major US carrier — still flies 717s, 757s and 767s alongside A220 and A350.
United Airlines
Largest 787 operator and largest 777 operator in the US. Massive widebody order book through 2030.
Full Top 20 Ranking
| # | Airline | Country | Fleet | Strategy | Top type | Alliance |
|---|---|---|---|---|---|---|
| 1 | American Airlines | United States | ~960 | Many types | Boeing 737 | Oneworld |
| 2 | Delta Air Lines | United States | ~990 | Many types | Airbus A321 | SkyTeam |
| 3 | United Airlines | United States | ~880 | Many types | Boeing 737 | Star Alliance |
| 4 | Southwest Airlines | United States | ~810 | Single-type | Boeing 737 | None |
| 5 | Lufthansa GroupGroup | Germany | ~700 | Many types | Airbus A320 family | Star Alliance |
| 6 | China Southern Airlines | China | ~600 | Many types | Airbus A320 family | None (left SkyTeam 2019) |
| 7 | IAG GroupGroup | Spain / United Kingdom | ~600 | Many types | Airbus A320 family | Oneworld |
| 8 | China Eastern Airlines | China | ~570 | Many types | Airbus A320 family | SkyTeam |
| 9 | Ryanair | Ireland | ~570 | Single-type | Boeing 737 | None |
| 10 | Air France-KLMGroup | France / Netherlands | ~550 | Many types | Boeing 737 / Airbus A320 family | SkyTeam |
| 11 | Air China | China | ~480 | Many types | Airbus A320 family | Star Alliance |
| 12 | Turkish Airlines | Turkey | ~440 | Many types | Boeing 737 | Star Alliance |
| 13 | IndiGo | India | ~390 | Few types | Airbus A320 family | None |
| 14 | Air Canada | Canada | ~370 | Many types | Airbus A320 family | Star Alliance |
| 15 | easyJet | United Kingdom | ~340 | Single-type | Airbus A320 family | None |
| 16 | Alaska Airlines | United States | ~330 | Few types | Boeing 737 | Oneworld |
| 17 | Qantas GroupGroup | Australia | ~310 | Many types | Boeing 737 | Oneworld |
| 18 | JetBlue Airways | United States | ~290 | Few types | Airbus A320 family | None |
| 19 | Emirates | United Arab Emirates | ~260 | Few types | Boeing 777 | None |
| 20 | Wizz Air | Hungary | ~210 | Single-type | Airbus A320 family | None |
Largest mainline passenger fleet in the world. Operates 737s, A319/320/321, 787, 777 and the last US passenger 777-200ERs.
Often cited as #1 depending on count method. Most diverse mainline fleet of any major US carrier — still flies 717s, 757s and 767s alongside A220 and A350.
Largest 787 operator and largest 777 operator in the US. Massive widebody order book through 2030.
Largest single-type fleet in commercial aviation. Every aircraft is a 737 — common type rating, common parts, simpler scheduling.
Group total across Lufthansa, SWISS, Austrian, Brussels Airlines, Eurowings, Discover and Lufthansa Cityline.
Largest carrier in Asia by fleet size. Widebody mix includes A380, A350, 787, 777.
Holding company for British Airways, Iberia, Vueling, Aer Lingus and LEVEL. Combined fleet rivals the largest European groups.
Launch operator of the COMAC C919, slowly displacing some narrowbody capacity from Airbus and Boeing.
Largest 737 operator outside North America. A near-pure single-type fleet (a small batch of A320s sit at Lauda).
Group total across Air France, KLM, Transavia and HOP. Air France leans Airbus, KLM leans Boeing.
Flag carrier of the People's Republic of China. Smaller than China Southern and China Eastern but with the most premium long-haul network.
Flies to more countries than any other airline. Aggressive widebody growth out of Istanbul Airport.
Largest airline in India. Predominantly A320neo / A321neo with a small ATR fleet and incoming A321XLR widebodies.
Includes Air Canada Rouge. Diverse widebody fleet with 777, 787 and A330.
All-Airbus narrowbody fleet across A319, A320 and A321neo. Europe's second largest LCC after Ryanair.
Combined fleet now includes Hawaiian's A330 and 787 widebodies after the 2024 merger.
Group total across Qantas, Jetstar, QantasLink and Network Aviation.
Almost entirely Airbus narrowbody (A220, A320, A321) plus a handful of E190s phasing out.
Largest A380 operator in the world and largest 777 operator. Just two aircraft types — the most concentrated widebody fleet anywhere.
Pure Airbus A320neo / A321neo / A321XLR LCC. One of the youngest fleets in Europe.
Cargo vs Passenger
If you include cargo carriers, the rankings flip. FedEx Express alone operates roughly 700+ jets — more than any passenger airline on Earth — and runs the world’s largest 757F and 767F fleets. UPS Airlines follows with around 290 aircraft. Together they account for about ~990 aircraft, more than United Airlines’ entire mainline fleet.
Single-Fleet vs Multi-Fleet Strategies
A single-type fleet is one of the highest-leverage operational decisions an airline can make. Pilots only need one type rating, mechanics only stock one parts catalogue, and any aircraft can fly any route. Southwest has built its 50-year cost advantage on a 737-only fleet. Ryanair, Wizz Air and easyJet run the same playbook in Europe.
The trade-off is route flexibility. American, Delta and United fly thin transatlantic routes with 757s, dense hub-to-hub trunks with 777s and 787s, and short shuttles with regional jets — none of which a single 737 can economically cover. Multi-type fleets are more expensive to maintain but they let an airline fly profitably from a 50-seat regional gate to a 350-seat widebody route without leaving demand on the table.
Emirates is the interesting outlier. Its entire fleet of ~260 aircraft is two types — the Airbus A380 and Boeing 777. That gives it Southwest-style commonality on a long-haul widebody network, which is rare anywhere in the world.
Largest Single-Type Fleets
Largest Airlines by Region
North America
- 1. American Airlines~960
- 2. Delta Air Lines~990
- 3. United Airlines~880
Europe
- 1. Lufthansa Group~700
- 2. IAG Group~600
- 3. Ryanair~570
Asia
- 1. China Southern Airlines~600
- 2. China Eastern Airlines~570
- 3. Air China~480
Middle East
- 1. Emirates~260
India
- 1. IndiGo~390
Oceania
- 1. Qantas Group~310
A Note on Methodology
Counts cover mainline aircraft only. Regional feeders that operate under a mainline brand (American Eagle, Delta Connection, United Express, Air France HOP) are flown by separate carriers under capacity purchase agreements and are not counted toward the parent airline’s fleet here. For airline groups (Lufthansa Group, IAG, Air France-KLM, Qantas Group) we list the consolidated total because the parent owns and finances the aircraft across all subsidiaries.
All figures are approximate (~) and drift week-to-week as aircraft are delivered, retired, or temporarily grounded. Numbers are sourced from each airline’s Wikipedia fleet page, Planespotters.net registration databases, ch-aviation, and operator press releases as of late 2025 / early 2026.
Sources & Citations
- Wikipedia airline fleet pages (American Airlines fleet, Delta fleet, United fleet, Southwest fleet, etc.)
- Planespotters.net operator registration databases
- ch-aviation operator profiles
- Investor relations and press releases from individual carriers and groups (Lufthansa Group, IAG, AF-KLM, Qantas)
- FedEx and UPS annual reports for cargo fleet totals