Houston, TX
CHouston, TX, TX — IAH
On-Time Rate
79.0%
2019-2025
Avg Delay
15.7 min
when delayed
Cancel Rate
2.1%
flights cancelled
Total Flights
858,503
2019-2025
Best Month
Nov
85.2% on-time
Worst Month
Jun
70.8% on-time
Best Departure Time
2:00
100.0% on-time
12-Month On-Time Trend
Delay Causes
Best Time to Fly (By Hour)
Seasonal Pattern
Airlines at IAH
| Airline | Flights | On-Time | Avg Delay |
|---|---|---|---|
| United Airlines | 393,209 | 78.3% | 0.0 min |
| Mesa Airlines | 110,489 | 81.1% | 0.0 min |
| SkyWest Airlines | 98,816 | 79.5% | 0.0 min |
| Spirit Airlines | 50,099 | 77.8% | 0.0 min |
| EV | 48,526 | 81.4% | 0.0 min |
| American Airlines | 44,701 | 76.6% | 0.0 min |
| Delta Air Lines | 43,492 | 82.3% | 0.0 min |
| Southwest Airlines | 20,371 | 79.0% | 0.0 min |
| Republic Airways | 19,010 | 82.9% | 0.0 min |
| Frontier Airlines | 12,632 | 65.5% | 0.0 min |
Most Delayed Routes
| Destination | On-Time |
|---|---|
| IAH → SRQSarasota/Bradenton, FL | 62.3% |
| IAH → ASEAspen, CO | 62.8% |
| IAH → SLNSalina, KS | 63.8% |
| IAH → EYWKey West, FL | 68.7% |
| IAH → JFKNew York, NY | 68.8% |
Most Punctual Routes
| Destination | On-Time |
|---|---|
| IAH → ABIAbilene, TX | 86.3% |
| IAH → SJTSan Angelo, TX | 85.2% |
| IAH → VCTVictoria, TX | 84.9% |
| IAH → STTCharlotte Amalie, VI | 84.8% |
| IAH → CHAChattanooga, TN | 84.3% |
Was your flight from Houston, TX delayed?
You may be entitled to compensation of up to $700 per passenger for delayed or cancelled flights. Check your eligibility now.
Check CompensationData source: Bureau of Transportation Statistics (BTS) On-Time Performance dataset. Statistics are based on reported flight data from 2019-2025. See our data methodology for details.