Route
IAH → LGA
George Bush Intercontinental Airport LaGuardia Airport
How punctual is this route?
- On-time arrivals
- 72.8%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,991
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 49%
- Airline (crew, maintenance, cleaning) 25%
- Late-arriving aircraft 24%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.8% | 369 |
| October 2025 | 68.4% | 376 |
| November 2025 | 64.7% | 353 |
| December 2025 | 65.4% | 348 |
| January 2026 | 87.9% | 287 |
| February 2026 | 79.6% | 241 |
| March 2026 | 54.3% | 272 |
| April 2026 | 78.8% | 364 |
| May 2026 | 78.1% | 347 |
| June 2026 | 71.0% | 340 |
| July 2026 | 63.2% | 351 |
| August 2026 | 75.2% | 343 |
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 |
|---|---|---|---|---|
| United Airlines | 2,376 | 71.3% | 1.5% | 81 min |
| Delta Air Lines | 1,347 | 77.5% | 4.8% | 99 min |
| NK | 236 | 60.3% | 7.2% | 82 min |
| SkyWest Airlines | 32 | 83.9% | 3.1% | 45 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1417
13% late · 357 flights
-
UA2181
34% late · 250 flights
-
UA678
22% late · 222 flights
-
UA2199
14% late · 215 flights
-
UA334
40% late · 195 flights
-
DL2140
18% late · 193 flights
-
UA1966
12% late · 123 flights
-
DL1697
35% late · 109 flights
-
DL2088
32% late · 100 flights
-
NK1158
41% late · 95 flights
-
DL603
38% late · 94 flights
-
DL1753
21% late · 93 flights
-
UA2659
30% late · 93 flights
-
UA1697
11% late · 88 flights
-
DL2930
23% late · 84 flights
-
UA2249
32% late · 82 flights
-
DL2099
34% late · 74 flights
-
DL2943
32% late · 74 flights
-
UA2676
45% late · 67 flights
-
DL851
17% late · 62 flights
-
NK1371
27% late · 55 flights
-
UA2133
20% late · 47 flights
-
UA686
33% late · 46 flights
-
UA2783
56% late · 40 flights
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