N57439 · BOEING 737-900

Manufacturer and model

BOEING 737-900

Operator

United Airlines (UAL)

First seen

2026-08-10

Last seen

2026-09-24

Flights over the last 30 days

117

Recent flights

• UAL2685 Manuel Crescencio Rejón International Airport (MID/MMMD) → George Bush Intercontinental Airport (IAH/KIAH) 2026-09-24
• UAL1426 George Bush Intercontinental Airport (IAH/KIAH) → Manuel Crescencio Rejón International Airport (MID/MMMD) 2026-09-23
• UAL1743 Pittsburgh International Airport (PIT/KPIT) → George Bush Intercontinental Airport (IAH/KIAH) 2026-09-23
• UAL452 George Bush Intercontinental Airport (IAH/KIAH) → Pittsburgh International Airport (PIT/KPIT) 2026-09-23
• UAL1322 San Antonio International Airport (SAT/KSAT) → George Bush Intercontinental Airport (IAH/KIAH) 2026-09-23

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