Waterloo (ALO) to Chicago (ORD): On-Time Performance
Data through July 2026
The biggest risk when flying ALO to ORD isn't a late arrival — it's not departing at all. 3.3% of scheduled flights on this route were cancelled, several times the typical US rate. When flights do go, 71% land on time, below the national average of 78%.
- On-time
- 71%
- arrived <15 min late
- Avg delay
- 30 min
- completed flights
- Cancelled
- 3.3%
- Flights/day
- 1.8
- last 12 months
- Duration
- 1h 27m
- scheduled
- Distance
- 234 mi
Best airline from ALO to ORD
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 72% | 28 min | 2.2% | 668 |
| SkyWest Airlines | 64% | 43 min | 10.0% | 100 |
Monthly on-time trend
Best time to fly from ALO to ORD
Aim for departures around 5 a.m. (83% on-time); avoid 3 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 64% | 35 min |
| Tuesday | 79% | 21 min |
| Wednesday | 74% | 26 min |
| Thursday | 66% | 30 min |
| Friday | 71% | 31 min |
| Saturdaybest | 82% | 27 min |
| Sunday | 68% | 38 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft31%
- Airline operations30%
- National airspace system15%
- Weather23%
Frequently asked questions
- How often are flights from ALO to ORD delayed?
- 29% of ALO–ORD 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 30 minutes.
- Which airline is most reliable from ALO to ORD?
- Envoy Air has the best on-time record on this route at 72%, based on 668 flights. 2 airlines flew ALO–ORD frequently enough to compare in this period.
- What is the best time of day to fly from ALO to ORD?
- Departures around 5 a.m. have the best record (83% on-time), while departures around 3 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ALO to ORD?
- The scheduled ALO–ORD flight time averages 1h 27m over 234 miles. Actual arrival times vary — flights on this route land 15+ minutes late 29% of the time.
- How often are ALO to ORD flights cancelled?
- 3.3% 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 ALO to ORD?
- December 2025 was the roughest month in this dataset, with only 59% of arrivals on time. The best was May 2026 at 86%. If your dates are flexible, that 28-point gap is worth planning around.
Explore related pages
Other ways to fly to Chicago (ORD)
Related guides
Based on 768 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.