ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
ORD → AZO
Chicago to Kalamazoo: 1,001 nonstop flights a year
On time (12 months)
75%
Cancelled
4.0%
avg delay 17 min
Best time to leave
Before 9 AM
89% on time vs 67% after 9 PM
Most reliable airline
SkyWest
75% chance on time
Lowest nonstop fare seen in the next two months: $408 (American 6193 on 2026-10-27). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 4899 · sold as United Express, Delta Connection, American Eagle or Alaska
9:15 AM → 11:22 AM1h 07m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- 96% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find 9:15 AM flight fares Opens this date on Aviasales#2 · Envoy 3457 · sold as American Eagle
9:39 AM → 11:44 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-06.
78%
chance on time
- On time (history)
- 86%
- Cancelled
- 3.3%
- Avg arrival delay
- 17 min
- Arrived on time 86% of the time (29 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (1 of 30).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- 68% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 29 flights
Find 9:39 AM flight fares Opens this date on Aviasales#3 · SkyWest 6418 · sold as United Express, Delta Connection, American Eagle or Alaska
1:10 PM → 3:18 PM1h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 1:10 PM flight fares Opens this date on Aviasales#4 · Envoy 3634 · sold as American Eagle
9:48 AM → 11:47 AM59m nonstop
Local times, typical schedule. Last flown 2026-04-06.
75%
chance on time
- On time (history)
- 77%
- Cancelled
- 1.9%
- Avg arrival delay
- 12 min
- Arrived on time 77% of the time (53 flights, Jun 2025 to May 2026).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- Short track record (53 flights), so its score leans on the airline's record at this hour.
Limited track record · 53 flights
Find 9:48 AM flight fares Opens this date on Aviasales#5 · Envoy 3458 · sold as American Eagle
3:22 PM → 5:27 PM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-20.
74%
chance on time
- On time (history)
- 77%
- Cancelled
- 2.3%
- Avg arrival delay
- 12 min
- Arrived on time 77% of the time (43 flights, Jun 2025 to May 2026).
- Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- 66% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find 3:22 PM flight fares Opens this date on Aviasales#6 · Envoy 3595 · sold as American Eagle
4:40 PM → 6:36 PM56m nonstop
Local times, typical schedule. Last flown 2026-04-06.
73%
chance on time
- On time (history)
- 80%
- Cancelled
- 7.4%
- Avg arrival delay
- 12 min
- Arrived on time 80% of the time (50 flights, Jun 2025 to May 2026).
- Cancelled 7.4% of the time (4 of 54).
- Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (50 flights), so its score leans on the airline's record at this hour.
Limited track record · 50 flights
Find 4:40 PM flight fares Opens this date on Aviasales#7 · SkyWest 6193 · sold as United Express, Delta Connection, American Eagle or Alaska
10:24 PM → 12:29 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 80%
- Cancelled
- 9.1%
- Avg arrival delay
- 9 min
- Arrived on time 80% of the time (10 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 67% on time; Before 9 AM: 89%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find 10:24 PM flight fares Opens this date on Aviasales#8 · Envoy 3484 · sold as American Eagle
8:59 PM → 11:03 PM1h 04m nonstop
Local times, typical schedule. Last flown 2026-04-06.
65%
chance on time
- On time (history)
- 61%
- Cancelled
- 6.7%
- Avg arrival delay
- 33 min
- Arrived on time 61% of the time (28 flights, Jun 2025 to May 2026).
- Cancelled 6.7% of the time (2 of 30).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- 68% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 28 flights
Find 8:59 PM flight fares Opens this date on Aviasales#9 · Envoy 3368 · sold as American Eagle
10:27 PM → 12:28 AM1h 01m nonstop
Local times, typical schedule. Last flown 2026-05-20.
62%
chance on time
- On time (history)
- 61%
- Cancelled
- 0.0%
- Avg arrival delay
- 26 min
- Arrived on time 61% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's least on-time window (After 9 PM: 67% on time; Before 9 AM: 89%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Limited track record · 44 flights
Find 10:27 PM flight fares Opens this date on Aviasales
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)75%
38 flights · 83% on time as flown · 3.7% cancel
- Envoy Air (sold as American Eagle)72%
963 flights · 75% on time as flown · 4.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM89%
194 flights · avg delay 6 min
- 9 AM to noon82%
104 flights · avg delay 13 min
- Noon to 3 PM72%
135 flights · avg delay 21 min
- 3 to 6 PM71%
215 flights · avg delay 15 min
- 6 to 9 PM74%
78 flights · avg delay 20 min
- After 9 PM67%
275 flights · avg delay 25 min
Best day: Tuesday (82%). Worst: Sunday (69%).
Smarter routing
Nearby airports that run more on time
MDW → GRR 75% chance on time
Chicago Midway International Airport to Gerald R. Ford International Airport · 928 flights a year · 60 mi from your airports · yours: 72%
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