ORD to SLC flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Salt Lake City International Airport · 1,250 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or SLC 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 Salt Lake City (SLC) arrived on time 70% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.4% were cancelled, and 12% arrived an hour or more late.
- United Airlines was the most punctual airline here (73% on time); American Airlines was the least (65%).
- Departures scheduled around 8am did best (86% on time); around 8pm did worst (55%).
- Tuesday was the most reliable day to fly (77% on time) and Sunday the least (65%).
- The largest source of delay minutes was late-arriving aircraft (39%).
Which airline is most on time from ORD to SLC?
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 |
|---|---|---|---|---|---|
| United Airlines | 73% | 1.2% | 19 min | 9.1% | 1,070 |
| Delta Air Lines | 72% | 1.0% | 32 min | 11.1% | 1,013 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 68% | 1.2% | 30 min | 14.8% | 82 |
| American Airlines | 65% | 2.1% | 25 min | 14.2% | 1,003 |
| Envoy AirRegional airline operating American Eagle flights. | 61% | 0.0% | 20 min | 13.9% | 36 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am80%384 flights
- 8am86%184 flights
- 9am73%305 flights
- 10am71%314 flights
- 12pm78%294 flights
- 1pm69%425 flights
- 2pm73%186 flights
- 3pm74%54 flights
- 5pm73%60 flights
- 6pm67%113 flights
- 7pm58%550 flights
- 8pm55%234 flights
- 9pm50%56 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday67%2.7% cancelled
- Tuesday77%1.3% cancelled
- Wednesday70%1.1% cancelled
- Thursday70%1.1% cancelled
- Friday68%1.0% cancelled
- Saturday73%1.7% cancelled
- Sunday65%0.8% 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 aircraft39%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion14%
- Extreme weather11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather62%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion11%
- Security0%
ORD to SLC: common questions
- How often are ORD to SLC flights on time?
- 70% 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 Salt Lake City cancelled?
- 1.4% of scheduled flights were cancelled (45 of 3,204).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 11.5% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 26 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SLC to ORD — 76% 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 → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.