Historical on-time performance
Houston to Memphis
469 miData through May 2026Source: US DOT · BTS
Flights on IAH–MEM arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 989 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time81%Medianon timep9045 minCancel0.7%Flights742
- United AirlinesOn-time70%Medianon timep9050 minCancel1.6%Flights247
Why flights run late
Delay causes
- Airline38%
- Weather6%
- Air traffic (NAS)13%
- Late aircraft42%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 9 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IAH → MEM
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 85% on time.
- Mornings85% on time · p90 20 min · 429 flights
- Middays83% on time · p90 45 min · 422 flights
- Evenings80% on time · p90 25 min · 154 flights · limited
- Overnights66% on time · p90 65 min · 940 flights
- Afternoons64% on time · p90 65 min · 225 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 83% on time.
- Wednesdays83% on time · p90 35 min · 308 flights
- Tuesdays77% on time · p90 50 min · 285 flights
- Thursdays74% on time · p90 50 min · 323 flights
- Mondays73% on time · p90 40 min · 328 flights
- Saturdays71% on time · p90 60 min · 292 flights
- Sundays70% on time · p90 60 min · 323 flights
- Fridays68% on time · p90 60 min · 311 flights
Keep exploring