Route
ORD → ATL
Chicago O'Hare International Airport Hartsfield Jackson Atlanta International Airport
How punctual is this route?
- On-time arrivals
- 74.1%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 6,495
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 20%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.3% | 543 |
| October 2025 | 78.2% | 569 |
| November 2025 | 77.7% | 526 |
| December 2025 | 65.0% | 491 |
| January 2026 | 73.3% | 444 |
| February 2026 | 82.7% | 445 |
| March 2026 | 63.5% | 515 |
| April 2026 | 73.6% | 554 |
| May 2026 | 76.4% | 597 |
| June 2026 | 76.9% | 583 |
| July 2026 | 69.5% | 602 |
| August 2026 | 65.4% | 626 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 2,629 | 79.8% | 2.4% | 87 min |
| United Airlines | 1,717 | 74.5% | 1.3% | 71 min |
| American Airlines | 754 | 59.5% | 2.5% | 96 min |
| Frontier Airlines | 719 | 67.5% | 3.5% | 101 min |
| Envoy Air | 365 | 77.6% | 2.2% | 66 min |
| Republic Airways | 254 | 69.7% | 4.3% | 67 min |
| SkyWest Airlines | 40 | 61.5% | 2.5% | 95 min |
| NK | 16 | 87.5% | 0.0% | 144 min |
| OH | 1 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1247
12% late · 365 flights
-
DL1264
9% late · 365 flights
-
UA356
27% late · 358 flights
-
DL1147
21% late · 350 flights
-
DL1178
15% late · 344 flights
-
F91596
28% late · 339 flights
-
UA1398
44% late · 292 flights
-
DL1477
28% late · 291 flights
-
DL2738
35% late · 237 flights
-
F91442
41% late · 165 flights
-
UA1848
19% late · 164 flights
-
DL2879
35% late · 144 flights
-
F92198
35% late · 136 flights
-
AA2779
48% late · 120 flights
-
UA2684
16% late · 102 flights
-
DL1456
14% late · 100 flights
-
UA2249
10% late · 95 flights
-
YX4703
33% late · 95 flights
-
DL2894
30% late · 92 flights
-
UA530
20% late · 91 flights
-
AA2910
34% late · 89 flights
-
MQ4118
31% late · 89 flights
-
UA1975
8% late · 85 flights
-
F93398
33% late · 79 flights
In the news
More headlines →-
City Council backs $55 million in new Hartsfield-Jackson funding as construction projects multiply
The Business Journals ATL
-
Over 400 flights cancelled due to severe weather at Hartsfield-Jackson Atlanta International Airport, Georgia
The Watchers - Watching the world evolve and transform ATL
-
Hartsfield-Jackson Atlanta International Airport
The Aviation Hub ATL
Headlines found by Google News; stories open on the publisher's site.
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