Route on-time record
SRQ to MDW: most on-time flights and the best time to fly
Sarasota/Bradenton (Sarasota Bradenton International Airport) to Chicago (Chicago Midway International Airport). 518 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 1.7% were cancelled. The most reliable flight number was Southwest 4424 at 7:05 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SRQ → MDW
Sarasota/Bradenton to Chicago: 518 nonstop flights a year
On time (12 months)
73%
Cancelled
1.7%
avg delay 17 min
Best time to leave
Before 9 AM
94% on time vs 47% 6 to 9 PM
Most reliable airline
Southwest
72% chance on time
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 4424
7:05 AM → 8:55 AM2h 50m nonstop
Local times, typical schedule. Last flown 2026-05-29.
85%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 94% on time; 6 to 9 PM: 47%).
- Lands 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 4424 fares Opens this date on Aviasales#2 · Southwest 2580
7:15 AM → 9:05 AM2h 50m nonstop
Local times, typical schedule. Last flown 2026-04-06.
83%
chance on time
- On time (history)
- 91%
- Cancelled
- 8.0%
- Avg arrival delay
- 2 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 94% on time; 6 to 9 PM: 47%).
- Lands 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 2580 fares Opens this date on Aviasales#3 · Southwest 3983
12:40 PM → 2:40 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
70%
chance on time
- On time (history)
- 62%
- Cancelled
- 13.3%
- Avg arrival delay
- 21 min
- Arrived on time 62% of the time (13 flights, Jun 2025 to May 2026).
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 3983 fares Opens this date on Aviasales#4 · Southwest 4425
6:50 PM → 8:35 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 858; its record covers all of them.
56%
chance on time
- On time (history)
- 51%
- Cancelled
- 1.1%
- Avg arrival delay
- 28 min
- Arrived on time 51% of the time (86 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 47% on time; Before 9 AM: 94%).
Moderate track record · 86 flights
Find Southwest 4425 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines72%
518 flights · 73% on time as flown · 1.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM94%
155 flights · avg delay 2 min
- 9 AM to noon86%
65 flights · avg delay 6 min
- Noon to 3 PM76%
65 flights · avg delay 11 min
- 3 to 6 PM63%
102 flights · avg delay 21 min
- 6 to 9 PM47%
131 flights · avg delay 40 min
Best day: Friday (79%). Worst: Saturday (74%).
Smarter routing
Nearby airports that run more on time
TPA → MDW 74% chance on time
Tampa International Airport to Chicago Midway International Airport · 1,630 flights a year · 40 mi from your airports · yours: 72%
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 aircraft53%
- Air traffic control and airport volume24%
- Airline (crew, maintenance, boarding)21%
- Severe weather2%
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
SRQ to MDW questions
- What time of day is best to fly SRQ to MDW?
- Before 9 AM: 94% of flights arrived on time, against 47% 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 SRQ to MDW?
- Southwest, with a season-adjusted 72% chance of operating and arriving on time over 518 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 SRQ to MDW?
- July (70% on time); the best was September (89%), 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 SRQ
- MDW to SRQ (return)
- SRQ to ATL 88%
- SRQ to CLT 85%
- SRQ to BWI 83%
- SRQ to ORD 68%
- SRQ to EWR 87%
- SRQ to BOS 69%
- SRQ to BNA 82%
- SRQ to LGA 74%
- SRQ to MCO 87%
- SRQ to JFK 72%
- SRQ to PHL 79%
- SRQ to DCA 75%
Live status: FAA delays and ground stops