Route on-time record
OMA to MDW: most on-time flights and the best time to fly
Omaha (Eppley Airfield) to Chicago (Chicago Midway International Airport). 1,384 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 1.4% were cancelled. The most reliable flight number was Southwest 2488 at 5:20 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
OMA → MDW
Omaha to Chicago: 1,384 nonstop flights a year
On time (12 months)
81%
Cancelled
1.4%
avg delay 11 min
Best time to leave
Before 9 AM
85% on time vs 70% 6 to 9 PM
Most reliable airline
Southwest
80% chance on time
Lowest nonstop fare seen in the next two months: $298 (Southwest 209 on 2026-10-26). 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 2488
5:20 AM → 6:45 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 1388; its record covers all of them.
87%
chance on time
- On time (history)
- 90%
- Cancelled
- 5.7%
- Avg arrival delay
- 8 min
- Arrived on time 90% of the time (82 flights, Jun 2025 to May 2026).
- Cancelled 5.7% of the time (5 of 87).
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; 6 to 9 PM: 70%).
Moderate track record · 82 flights
Find Southwest 2488 fares Opens this date on Aviasales#2 · Southwest 3844
1:00 PM → 2:25 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (14 flights, Jun 2025 to May 2026).
- Short track record (14 flights), so its score leans on the airline's record at this hour.
Limited track record · 14 flights
Find Southwest 3844 fares Opens this date on Aviasales#3 · Southwest 2581
1:55 PM → 3:20 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-29.
83%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 83% of the time (23 flights, Jun 2025 to May 2026).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 2581 fares Opens this date on Aviasales#4 · Southwest 505
10:30 AM → 11:55 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 2066; its record covers all of them.
81%
chance on time
- On time (history)
- 80%
- Cancelled
- 2.8%
- Avg arrival delay
- 9 min
- Arrived on time 80% of the time (70 flights, Jun 2025 to May 2026).
- Lands inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
Moderate track record · 70 flights
Find Southwest 505 fares Opens this date on Aviasales#5 · Southwest 4123
2:25 PM → 3:50 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-04-06.
77%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 21 min
- Arrived on time 73% of the time (15 flights, Jun 2025 to May 2026).
- 71% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 4123 fares Opens this date on Aviasales#6 · Southwest 2157
4:35 PM → 6:00 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3444; its record covers all of them.
58%
chance on time
- On time (history)
- 50%
- Cancelled
- 1.3%
- Avg arrival delay
- 20 min
- Arrived on time 50% of the time (78 flights, Jun 2025 to May 2026).
- 61% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 78 flights
Find Southwest 2157 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines80%
1,384 flights · 81% on time as flown · 1.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
407 flights · avg delay 7 min
- 9 AM to noon84%
292 flights · avg delay 8 min
- Noon to 3 PM84%
149 flights · avg delay 10 min
- 3 to 6 PM76%
368 flights · avg delay 13 min
- 6 to 9 PM70%
168 flights · avg delay 25 min
Best day: Saturday (90%). Worst: Monday (80%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft55%
- Airline (crew, maintenance, boarding)24%
- Air traffic control and airport volume20%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
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
OMA to MDW questions
- What time of day is best to fly OMA to MDW?
- Before 9 AM: 85% of flights arrived on time, against 70% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from OMA to MDW?
- Southwest, with a season-adjusted 80% chance of operating and arriving on time over 1,384 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on OMA to MDW?
- July (75% on time); the best was February (91%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from OMA
- MDW to OMA (return)
- OMA to DEN 76%
- OMA to ORD 74%
- OMA to PHX 83%
- OMA to ATL 87%
- OMA to DFW 76%
- OMA to MSP 80%
- OMA to DTW 80%
- OMA to LAS 85%
- OMA to CLT 84%
- OMA to STL 89%
- OMA to IAH 88%
- OMA to SLC 92%
Live status: FAA delays and ground stops