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 → DTW
Chicago to Detroit: 1,387 nonstop flights a year
On time (12 months)
77%
Cancelled
1.4%
avg delay 14 min
Best time to leave
Before 9 AM
89% on time vs 53% after 9 PM
Most reliable airline
SkyWest
82% chance on time
Lowest nonstop fare seen in the next two months: $234 (Southwest 2742 on 2026-10-24). 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 1282
7:50 AM → 10:00 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Southwest 4086, 1071; its record covers all of them.
86%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 93% of the time (41 flights, Jun 2025 to May 2026).
- Never cancelled in 41 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; After 9 PM: 53%).
- Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
Limited track record · 41 flights
Find Southwest 1282 fares Opens this date on Aviasales#2 · Southwest 369
8:00 AM → 10:10 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-29.
85%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; After 9 PM: 53%).
- 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 (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 369 fares Opens this date on Aviasales#3 · Southwest 263
7:40 AM → 9:45 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-27.
78%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 27 min
- Arrived on time 75% of the time (16 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; After 9 PM: 53%).
- Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 16 flights
Find Southwest 263 fares Opens this date on Aviasales#4 · Southwest 1346
12:45 PM → 2:55 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3791; its record covers all of them.
68%
chance on time
- On time (history)
- 65%
- Cancelled
- 2.6%
- Avg arrival delay
- 21 min
- Arrived on time 65% of the time (75 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.
- Lands inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
- 51% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 75 flights
Find Southwest 1346 fares Opens this date on Aviasales#5 · Southwest 3027
7:00 PM → 9:05 PM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3269, 498; its record covers all of them.
61%
chance on time
- On time (history)
- 56%
- Cancelled
- 2.5%
- Avg arrival delay
- 31 min
- Arrived on time 56% of the time (77 flights, Jun 2025 to May 2026).
- Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
- 59% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 77 flights
Find Southwest 3027 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)82%
330 flights · 84% on time as flown · 0.7% cancel
- Southwest Airlines74%
1,057 flights · 75% on time as flown · 1.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM89%
131 flights · avg delay 7 min
- 9 AM to noon86%
381 flights · avg delay 7 min
- Noon to 3 PM78%
155 flights · avg delay 15 min
- 3 to 6 PM71%
225 flights · avg delay 17 min
- 6 to 9 PM74%
395 flights · avg delay 18 min
- After 9 PM53%
100 flights · avg delay 32 min
Best day: Saturday (84%). Worst: Sunday (75%).
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