BOI to ORD flight delays & on-time performance
Nonstop flights from Boise Air Terminal/Gowen Field to Chicago O'Hare International Airport · 1,437 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOI or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Boise (BOI) to Chicago (ORD) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.2% were cancelled, and 10% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (83% on time); American Airlines was the least (62%).
- Departures scheduled around 8am did best (86% on time); around 1pm did worst (61%).
- Tuesday was the most reliable day to fly (81% on time) and Friday the least (65%).
- The largest source of delay minutes was late-arriving aircraft (33%).
Which airline is most on time from BOI to ORD?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 83% | 2.2% | 14 min | 5.1% | 507 |
| United Airlines | 77% | 0.8% | 21 min | 10.5% | 244 |
| Envoy AirRegional airline operating American Eagle flights. | 64% | 0.0% | 40 min | 17.8% | 157 |
| American Airlines | 62% | 0.0% | 35 min | 15.3% | 203 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am76%41 flights
- 8am86%342 flights
- 12pm78%363 flights
- 1pm61%252 flights
- 3pm68%111 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%0.6% cancelled
- Tuesday81%1.3% cancelled
- Wednesday77%0.6% cancelled
- Thursday78%1.3% cancelled
- Friday65%0.6% cancelled
- Saturday80%1.9% cancelled
- Sunday75%1.9% 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 aircraft33%
- Air traffic control & airport congestion26%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather16%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather92%
- Airline (crew, maintenance, cleaning, fueling)8%
- Air traffic control & airport congestion0%
- Security0%
BOI to ORD: common questions
- How often are BOI to ORD flights on time?
- 75% 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 Boise to Chicago cancelled?
- 1.2% of scheduled flights were cancelled (13 of 1,111).
- How long are typical delays?
- Across all flights the average arrival delay was 23 min (early arrivals count as zero). Flights that were late arrived 89 min behind schedule on average, and 10.0% of flights were an hour or more late.
- How long is taxi time at BOI?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to BOI — 70% on time
More flights from Boise
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOI → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.