Route
HOU → MEM
William P. Hobby Airport Frederick W. Smith International Airport
How punctual is this route?
- On-time arrivals
- 74.2%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 840
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 10%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.0% | 69 |
| October 2025 | 75.9% | 79 |
| November 2025 | 72.2% | 58 |
| December 2025 | 80.0% | 60 |
| January 2026 | 85.2% | 58 |
| February 2026 | 80.8% | 52 |
| March 2026 | 61.7% | 81 |
| April 2026 | 70.3% | 74 |
| May 2026 | 75.7% | 74 |
| June 2026 | 62.7% | 76 |
| July 2026 | 73.4% | 81 |
| August 2026 | 73.1% | 78 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 840 | 74.2% | 1.2% | 50 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2023
25% late · 57 flights
-
WN1914
23% late · 55 flights
-
WN1913
6% late · 53 flights
-
WN4013
8% late · 52 flights
-
WN4745
40% late · 52 flights
-
WN3358
26% late · 45 flights
-
WN2374
17% late · 42 flights
-
WN2946
20% late · 42 flights
-
WN2376
48% late · 31 flights
-
WN3014
29% late · 31 flights
-
WN2730
43% late · 28 flights
-
WN4539
57% late · 28 flights
-
WN570
29% late · 28 flights
-
WN410
44% late · 27 flights
-
WN498
7% late · 27 flights
-
WN2064
20% late · 25 flights
-
WN4457
24% late · 21 flights
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