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10 carriers across 9 countries operate the Boeing 737 MAX 9 accounting for 330 in-service aircraft, ranked below by in-service count. United Airlines runs the largest tracked fleet of the type with 167 in service.
Operator and fleet counts from our airline directory. Fleet dataset checked August 24, 2026.
| # | Airline | Country | In service |
|---|---|---|---|
| 1 | United Airlines | United States | 167 |
| 2 | Alaska Airlines | United States | 80 |
| 3 | Copa Airlines | Panama | 32 |
| 4 | Aeromexico | Mexico | 30 |
| 5 | Turkish Airlines | Turkey | 5 |
| 6 | Icelandair | Iceland | 4 |
| 7 | Lion Air | Indonesia | 4 |
| 8 | Corendon Dutch Airlines | Netherlands | 3 |
| 9 | flydubai | United Arab Emirates | 3 |
| 10 | Air Tanzania | Tanzania | 2 |