Route
ORD → SJU
Chicago O'Hare International Airport Luis Munoz Marin International Airport
How punctual is this route?
- On-time arrivals
- 73.2%
- Less than 15 minutes late
- Cancelled
- 2.2%
- Of scheduled flights
- Average delay when late
- 74 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,390
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 36%
- Late-arriving aircraft 31%
- Air traffic control & airport 25%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.4% | 51 |
| October 2025 | 79.7% | 74 |
| November 2025 | 73.7% | 100 |
| December 2025 | 73.3% | 131 |
| January 2026 | 70.0% | 155 |
| February 2026 | 87.1% | 139 |
| March 2026 | 59.4% | 179 |
| April 2026 | 77.9% | 140 |
| May 2026 | 82.7% | 105 |
| June 2026 | 68.1% | 91 |
| July 2026 | 71.2% | 122 |
| August 2026 | 65.0% | 103 |
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 | 657 | 79.2% | 0.3% | 57 min |
| American Airlines | 429 | 71.2% | 1.6% | 69 min |
| NK | 232 | 60.8% | 8.2% | 78 min |
| Frontier Airlines | 72 | 66.7% | 4.2% | 192 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1996
21% late · 365 flights
-
UA695
21% late · 288 flights
-
AA3276
26% late · 120 flights
-
NK2205
36% late · 114 flights
-
AA3192
41% late · 76 flights
-
F93346
33% late · 72 flights
-
AA2845
19% late · 44 flights
-
AA1555
29% late · 37 flights
-
NK1481
32% late · 35 flights
-
NK586
83% late · 34 flights
-
NK2080
30% late · 30 flights
-
AA2852
14% late · 28 flights
-
AA1865
44% late · 27 flights
-
AA1060
23% late · 26 flights
-
AA1758
14% late · 21 flights
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