Chicago (ORD) to Waterloo (ALO): On-Time Performance
Data through July 2026
Chicago (ORD) to Waterloo (ALO) has an unusually high scrub rate — 3.6% of scheduled departures never left the gate, a cancellation rate several times the national figure. When flights do go, 72% land on time, below the national average of 78%.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 3.6%
- Flights/day
- 1.8
- last 12 months
- Duration
- 1h 18m
- scheduled
- Distance
- 234 mi
Best airline from ORD to ALO
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 72% | 22 min | 2.4% | 668 |
| SkyWest Airlines | 67% | 36 min | 11.9% | 101 |
Monthly on-time trend
Best time to fly from ORD to ALO
Aim for departures around 12 p.m. (81% on-time); avoid 9 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 23 min |
| Tuesday | 74% | 19 min |
| Wednesday | 64% | 34 min |
| Thursday | 70% | 19 min |
| Friday | 72% | 24 min |
| Saturdaybest | 84% | 9 min |
| Sunday | 71% | 31 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations13%
- National airspace system19%
- Weather19%
Frequently asked questions
- How often are flights from ORD to ALO delayed?
- 28% of ORD–ALO flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 23 minutes.
- Which airline is most reliable from ORD to ALO?
- Envoy Air has the best on-time record on this route at 72%, based on 668 flights. 2 airlines flew ORD–ALO frequently enough to compare in this period.
- What is the best time of day to fly from ORD to ALO?
- Departures around 12 p.m. have the best record (81% on-time), while departures around 9 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ORD to ALO?
- The scheduled ORD–ALO flight time averages 1h 18m over 234 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are ORD to ALO flights cancelled?
- 3.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from ORD to ALO?
- December 2025 was the roughest month in this dataset, with only 59% of arrivals on time. The best was October 2025 at 85%. If your dates are flexible, that 26-point gap is worth planning around.
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Based on 769 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.