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14 nonstop, 26 with 1 connection, 6 with 2 · ranked by overall best · 16 hidden by your Most reliable time setting (they leave at other times of day) · showing the top 3
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
30 matching trips
Why this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have an 85% reliability rating vs 64% for night departures.
- Compared with the next-best option (Delta 879 on the Boeing 737-800), it arrives on time 4 points more often; it flies a newer plane (about 6 vs 25 years old).
- Legroom was comparable across the flights we compared (30–31 in), so it didn't set them apart.
Aircraft and legroom reflect the planes each flight has flown recently. Airlines can swap planes and seat maps change, so check the airline’s seat map when you book.
SLC → ORD
Salt Lake City to Chicago: 3,173 nonstop flights a year
On time (12 months)
75%
Cancelled
1.0%
avg delay 23 min
Best time to leave
Before 9 AM
88% on time vs 66% 3 to 6 PM
Most reliable airline
SkyWest
77% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)77%
125 flights · 77% on time as flown · 0.9% cancel
- Delta Air Lines76%
1,010 flights · 77% on time as flown · 0.6% cancel
- United Airlines75%
1,068 flights · 76% on time as flown · 0.9% cancel
- American Airlines72%
934 flights · 74% on time as flown · 1.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM88%
1,090 flights · avg delay 12 min
- Noon to 3 PM70%
1,082 flights · avg delay 30 min
- 3 to 6 PM66%
933 flights · avg delay 28 min
Best day: Tuesday (82%). Worst: Sunday (78%).
Smarter routing
Nearby airports that run more on time
SLC → MDW 84% chance on time
Salt Lake City International Airport to Chicago Midway International Airport · 617 flights a year · 15 mi from your airports · yours: 74%
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure