United Airlines
UA1231Chicago to Houston
United Airlines flight UA1231 flies from Chicago O'Hare (ORD) to Houston (IAH), 1,491 km. Over August 2025 to July 2026 it usually arrives about 4 minutes late: 83% of 429 flights arrived within 15 minutes of schedule and 0.7% were cancelled (US Department of Transportation data).
On-time record, last 12 months
83%
on time (within 15 min)
12%
more than 30 min late
0.7%
cancelled
+4 min
average arrival vs schedule
Every operation of UA1231, August 2025 to July 2026: 429 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as UA1231
- Chicago O'Hare (ORD) to Houston (IAH)239 flights
- Miami (MIA) to Newark Liberty (EWR)41 flights
- Newark Liberty (EWR) to Orlando (MCO)37 flights
- Houston (IAH) to Vail (EGE)35 flights
- Las Vegas (LAS) to Chicago O'Hare (ORD)32 flights
- Chicago O'Hare (ORD) to Jacksonville (JAX)23 flights
- Detroit (DTW) to Chicago O'Hare (ORD)16 flights
- Seattle Tacoma (SEA) to Newark Liberty (EWR)3 flights
- San Francisco (SFO) to Albuquerque (ABQ)2 flights
- Jacksn Hole (JAC) to Denver (DEN)1 flights
Other flights from Chicago to Houston
More about Chicago O'Hare (ORD) and Houston (IAH).
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