ORD to ALO flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Waterloo Regional Airport · 234 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or ALO right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to Waterloo (ALO) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.1% were cancelled, and 12% arrived an hour or more late.
- Envoy Air was the most punctual airline here (74% on time); SkyWest Airlines was the least (67%).
- Departures scheduled around 8pm did best (85% on time); around 9pm did worst (58%).
- Saturday was the most reliable day to fly (86% on time) and Wednesday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (51%).
Which airline is most on time from ORD to ALO?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 74% | 2.7% | 20 min | 11.5% | 555 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 67% | 11.9% | 36 min | 16.9% | 101 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 12pm81%48 flights
- 1pm78%234 flights
- 3pm94%17 flights
- 6pm79%15 flights
- 8pm85%26 flights
- 9pm58%36 flights
- 10pm70%216 flights
- 11pm62%60 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday70%3.8% cancelled
- Tuesday78%1.5% cancelled
- Wednesday70%1.0% cancelled
- Thursday71%4.0% cancelled
- Friday71%6.7% cancelled
- Saturday86%5.4% cancelled
- Sunday73%5.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft51%
- Extreme weather19%
- Air traffic control & airport congestion16%
- Airline (crew, maintenance, cleaning, fueling)14%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather85%
- Air traffic control & airport congestion15%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
ORD to ALO: common questions
- How often are ORD to ALO flights on time?
- 73% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Chicago to Waterloo cancelled?
- 4.1% of scheduled flights were cancelled (27 of 656).
- How long are typical delays?
- Across all flights the average arrival delay was 22 min (early arrivals count as zero). Flights that were late arrived 80 min behind schedule on average, and 12.3% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 25 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ALO to ORD — 72% on time
More flights from Chicago
More flights to Waterloo
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → ALO, nonstop flights by US airlines that report to the DOT. How we calculate this.