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.
MDW → CVG
Chicago to Cincinnati / Covington: 494 nonstop flights a year
On time (12 months)
76%
Cancelled
1.4%
avg delay 15 min
Best time to leave
9 AM to noon
96% on time vs 70% 6 to 9 PM
Most reliable airline
Southwest
74% chance on time
Lowest nonstop fare seen in the next two months: $131 (Southwest 794 on 2026-11-04). 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 · Southwest 3120
12:50 PM → 3:00 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-27.
82%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (16 flights, Jun 2025 to May 2026).
- Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 3120 fares Opens this date on Aviasales#2 · Southwest 3787
7:40 AM → 9:45 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-30.
80%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 3787 fares Opens this date on Aviasales#3 · Southwest 2748
1:00 PM → 3:10 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 83% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
- 62% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 30 flights
Find Southwest 2748 fares Opens this date on Aviasales#4 · Southwest 4601
1:25 PM → 3:35 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-04-06.
74%
chance on time
- On time (history)
- 69%
- Cancelled
- 3.0%
- Avg arrival delay
- 20 min
- Arrived on time 69% of the time (32 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (1 of 33).
- Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
- Short track record (32 flights), so its score leans on the airline's record at this hour.
Limited track record · 32 flights
Find Southwest 4601 fares Opens this date on Aviasales#5 · Southwest 3256
7:00 PM → 9:10 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
- On time (history)
- 80%
- Cancelled
- 1.8%
- Avg arrival delay
- 12 min
- Arrived on time 80% of the time (54 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 70% on time; 9 AM to noon: 96%).
- Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 3256 fares Opens this date on Aviasales#6 · Southwest 3917
7:15 PM → 9:30 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-04-06.
64%
chance on time
- On time (history)
- 52%
- Cancelled
- 0.0%
- Avg arrival delay
- 36 min
- Arrived on time 52% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 70% on time; 9 AM to noon: 96%).
- Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
Limited track record · 33 flights
Find Southwest 3917 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines74%
494 flights · 76% on time as flown · 1.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon96%
49 flights · avg delay 2 min
- Noon to 3 PM83%
107 flights · avg delay 12 min
- 3 to 6 PM72%
59 flights · avg delay 11 min
- 6 to 9 PM70%
244 flights · avg delay 20 min
Best day: Wednesday (79%). Worst: Monday (73%).
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