N17591 · BOEING 737 MAX 9

Manufacturer and model

BOEING 737 MAX 9

Operator

United Airlines (UAL)

First seen

2026-08-10

Last seen

2026-09-24

Flights over the last 30 days

136

Recent flights

• UAL1581 Chicago O'Hare International Airport (ORD/KORD) → Patrick Leahy Burlington International Airport (BTV/KBTV) 2026-09-24
• UAL1015 Boston Logan International Airport (BOS/KBOS) → Chicago O'Hare International Airport (ORD/KORD) 2026-09-24
• UAL1928 Chicago O'Hare International Airport (ORD/KORD) → Boston Logan International Airport (BOS/KBOS) 2026-09-23
• UAL356 Phoenix Sky Harbor International Airport (PHX/KPHX) → Chicago O'Hare International Airport (ORD/KORD) 2026-09-23
• UAL602 Chicago O'Hare International Airport (ORD/KORD) → Phoenix Sky Harbor International Airport (PHX/KPHX) 2026-09-23

Sources: the aircraft registry and our own observations; flight totals also include history taken over from before our own network started.