Find the flight least likely to be delayed

1. Best overall#1 · Nonstop · 2h 50m

   7:05 AM → 8:55 AM

   85%

   arrive on time

   7:05 AM SRQ → 8:55 AM MDW2h 50m

   Southwest 4424

   Boeing 737 MAX 8 · 1–10 yrs old

   87% on time · 1.5% cancel
   Why this ranks here

   Find Southwest 4424 fares ↗Opens this date on Aviasales

2. #2 · Nonstop · 2h 50m

   7:15 AM → 9:05 AM

   83%

   arrive on time

   7:15 AM SRQ → 9:05 AM MDW2h 50m

   Southwest 2580

   Boeing 737 MAX 8 or 737-800 · 1–12 yrs old

   85% on time · 2.6% cancel
   Why this ranks here

   Find Southwest 2580 fares ↗Opens this date on Aviasales

3. #3 · 1 connection · 4h 56m · one ticket (Delta)

   6:00 AM → 9:56 AM

   92%

   connections made

   78%

   arrive on time

   6:00 AM SRQ → 7:41 AM ATL1h 41m

   Delta 1499

   Airbus A321 or Boeing 737-900ER · 7–11 yrs old

   95% on time · 2.3% cancel

   Connect in ATL · 1h 18m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

   8:59 AM ATL → 9:56 AM MDW1h 57m

   Delta 1063

   Boeing 717 or Airbus A319 · 22–27 yrs old

   85% on time · 2.9% cancel
   Why this ranks here

   Find this Delta trip ↗Look for Delta 1499 + Delta 1063 on Aviasales

4. #4 · 1 connection · 5h 55m · one ticket (Delta)

   7:05 AM → 12:02 PM

   93%

   connections made

   81%

   arrive on time

   7:05 AM SRQ → 8:50 AM ATL1h 43m

   Delta 1445

   Boeing 737-900ER · 7–13 yrs old

   94% on time · 2.1% cancel

   Connect in ATL · 2h 15m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

   11:05 AM ATL → 12:02 PM MDW1h 57m

   Delta 2417

   Boeing 717 or Airbus A319 · 22–27 yrs old

   87% on time · 3.1% cancel
   Why this ranks here

   Find this Delta trip ↗Look for Delta 1445 + Delta 2417 on Aviasales

5. #5 · Nonstop · 3h 00m

   12:40 PM → 2:40 PM

   70%

   arrive on time

   12:40 PM SRQ → 2:40 PM MDW3h 00m

   Southwest 3983

   Boeing 737-800 or 737 MAX 8 · 4–14 yrs old

   72% on time · 2.8% cancel
   Why this ranks here

   Find Southwest 3983 fares ↗Opens this date on Aviasales

6. #6 · 1 connection · 5h 30m · one ticket (Southwest)

   7:40 AM → 12:10 PM

   94%

   connections made

   79%

   arrive on time

   7:40 AM SRQ → 8:45 AM BNA2h 05m

   Southwest 1896

   Boeing 737-700 or 737 MAX 8 · 3–23 yrs old

   90% on time · 0.3% cancel

   Connect in BNA · 1h 50m · 96% chance to make it · same ticket: the airline rebooks you if you miss it

   10:35 AM BNA → 12:10 PM MDW1h 35m

   Southwest 4415

   Boeing 737-700 · 19–22 yrs old

   84% on time · 1.1% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 1896 + Southwest 4415 on Aviasales

7. #7 · 1 connection · 6h 15m · one ticket (Southwest)

   8:50 AM → 2:05 PM

   95%

   connections made

   81%

   arrive on time

   8:50 AM SRQ → 11:15 AM PIT2h 25m

   Southwest 1231

   Boeing 737 MAX 8 · 0–12 yrs old

   79% on time · 1.3% cancel

   Connect in PIT · 2h 20m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

   1:35 PM PIT → 2:05 PM MDW1h 30m

   Southwest 1348

   Boeing 737 MAX 8 or 737-700 · 1–21 yrs old

   86% on time · 0.6% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 1231 + Southwest 1348 on Aviasales

8. #8 · 1 connection · 5h 15m · one ticket (Southwest)

   8:55 AM → 1:10 PM

   93%

   connections made

   78%

   arrive on time

   8:55 AM SRQ → 10:00 AM BNA2h 05m

   Southwest 4415

   Boeing 737-700 or 737 MAX 8 · 3–22 yrs old

   92% on time · 0.3% cancel

   Connect in BNA · 1h 35m · 95% chance to make it · same ticket: the airline rebooks you if you miss it

   11:35 AM BNA → 1:10 PM MDW1h 35m

   Southwest 418

   Boeing 737 MAX 8 · 0–12 yrs old

   83% on time · 1.2% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 4415 + Southwest 418 on Aviasales

9. #9 · 1 connection · 6h 30m · one ticket (Southwest)

   7:40 AM → 1:10 PM

   97%

   connections made

   81%

   arrive on time

   7:40 AM SRQ → 8:45 AM BNA2h 05m

   Southwest 1896

   Boeing 737-700 or 737 MAX 8 · 3–23 yrs old

   90% on time · 0.3% cancel

   Connect in BNA · 2h 50m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

   11:35 AM BNA → 1:10 PM MDW1h 35m

   Southwest 418

   Boeing 737 MAX 8 · 0–12 yrs old

   83% on time · 1.2% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 1896 + Southwest 418 on Aviasales

10. #10 · 1 connection · 4h 47m · one ticket (Delta)

    8:15 AM → 12:02 PM

    86%

    connections made

    75%

    arrive on time

    8:15 AM SRQ → 10:02 AM ATL1h 47m

    Delta 3194

    Airbus A321 · 8–10 yrs old

    91% on time · 1.5% cancel

    Connect in ATL · 1h 03m · 90% chance to make it · same ticket: the airline rebooks you if you miss it

    11:05 AM ATL → 12:02 PM MDW1h 57m

    Delta 2417

    Boeing 717 or Airbus A319 · 22–27 yrs old

    87% on time · 3.1% cancel
    Why this ranks here

    Find this Delta trip ↗Look for Delta 3194 + Delta 2417 on Aviasales

Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes.