ORD to BIL flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Billings Logan International Airport · 1,060 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or BIL 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 Billings (BIL) arrived on time 88% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.3% were cancelled, and 2% arrived an hour or more late.
- Envoy Air was the most punctual airline here (89% on time); SkyWest Airlines was the least (86%).
- Departures scheduled around 10am did best (95% on time); around 8pm did worst (81%).
- Tuesday was the most reliable day to fly (95% on time) and Wednesday the least (84%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
Which airline is most on time from ORD to BIL?
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. | 89% | 0.4% | 8 min | 2.2% | 230 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 86% | 0.0% | 7 min | 2.4% | 86 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am90%68 flights
- 9am89%118 flights
- 10am95%64 flights
- 8pm81%60 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday84%0.0% cancelled
- Tuesday95%0.0% cancelled
- Wednesday84%0.0% cancelled
- Thursday91%0.0% cancelled
- Friday89%0.0% cancelled
- Saturday87%2.1% cancelled
- Sunday89%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)42%
- Late-arriving aircraft35%
- Extreme weather12%
- Air traffic control & airport congestion11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Air traffic control & airport congestion100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Extreme weather0%
- Security0%
ORD to BIL: common questions
- How often are ORD to BIL flights on time?
- 88% 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 Billings cancelled?
- 0.3% of scheduled flights were cancelled (1 of 316).
- How long are typical delays?
- Across all flights the average arrival delay was 8 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 2.2% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 29 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BIL to ORD — 81% on time
More flights from Chicago
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → BIL, nonstop flights by US airlines that report to the DOT. How we calculate this.