Find the flight least likely to be delayed

1. Best overall#1 · Nonstop · 1h 55m

   7:55 AM → 9:50 AM

   85%

   arrive on time

   7:55 AM ECP → 9:50 AM STL1h 55m

   Southwest 2081

   Boeing 737-700 · 20–25 yrs old

   85% on time · 0.0% cancel
   Why this ranks here

   Find Southwest 2081 fares ↗Opens this date on Aviasales

2. #2 · Nonstop · 2h 00m

   10:10 AM → 12:10 PM

   80%

   arrive on time

   10:10 AM ECP → 12:10 PM STL2h 00m

   Southwest 334

   Boeing 737-700 or 737-800 · 10–22 yrs old

   80% on time · 0.0% cancel
   Why this ranks here

   Find Southwest 334 fares ↗Opens this date on Aviasales

3. #3 · Nonstop · 1h 55m

   5:55 PM → 7:50 PM

   78%

   arrive on time

   5:55 PM ECP → 7:50 PM STL1h 55m

   Southwest 2878

   Boeing 737-700 · 17–23 yrs old

   78% on time · 0.0% cancel
   Why this ranks here

   Find Southwest 2878 fares ↗Opens this date on Aviasales

4. #4 · Nonstop · 1h 50m

   7:00 PM → 8:50 PM

   77%

   arrive on time

   7:00 PM ECP → 8:50 PM STL1h 50m

   Southwest 2153

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

   77% on time · 0.0% cancel
   Why this ranks here

   Find Southwest 2153 fares ↗Opens this date on Aviasales

5. #5 · 1 connection · 5h 40m · one ticket (Southwest)

   7:10 AM → 12:50 PM

   98%

   connections made

   84%

   arrive on time

   7:10 AM ECP → 8:40 AM BNA1h 30m

   Southwest 565

   Boeing 737 MAX 8 or 737-800 · 1–17 yrs old

   89% on time · 0.1% cancel

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

   11:30 AM BNA → 12:50 PM STL1h 20m

   Southwest 3616

   Boeing 737-700 · 17–23 yrs old

   86% on time · 0.7% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 565 + Southwest 3616 on Aviasales

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

   7:20 AM → 12:50 PM

   97%

   connections made

   83%

   arrive on time

   7:20 AM ECP → 8:45 AM BNA1h 25m

   Southwest 2870

   Boeing 737-800 or 737 MAX 8 · 1–14 yrs old

   91% on time · 0.2% cancel

   Connect in BNA · 2h 45m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

   11:30 AM BNA → 12:50 PM STL1h 20m

   Southwest 3616

   Boeing 737-700 · 17–23 yrs old

   86% on time · 0.7% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 2870 + Southwest 3616 on Aviasales

7. #7 · 1 connection · 4h 26m · one ticket (Delta)

   11:08 AM → 3:32 PM

   92%

   connections made

   79%

   arrive on time

   11:08 AM ECP → 1:17 PM ATL1h 09m

   Delta 3045

   Boeing 717 · 22–27 yrs old

   87% on time · 1.4% cancel

   Connect in ATL · 1h 37m · 95% chance to make it · same ticket: the airline rebooks you if you miss it

   2:54 PM ATL → 3:32 PM STL1h 40m

   Delta 1485

   Airbus A321 or Boeing 737-900ER · 7–25 yrs old

   85% on time · 1.6% cancel
   Why this ranks here

   Find this Delta trip ↗Look for Delta 3045 + Delta 1485 on Aviasales

8. #8 · 1 connection · 4h 40m · one ticket (Southwest)

   11:05 AM → 3:45 PM

   96%

   connections made

   79%

   arrive on time

   11:05 AM ECP → 12:35 PM BNA1h 30m

   Southwest 336

   Boeing 737-700 · 19–22 yrs old

   87% on time · 0.2% cancel

   Connect in BNA · 1h 50m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

   2:25 PM BNA → 3:45 PM STL1h 20m

   Southwest 2381

   Boeing 737-700 · 17–20 yrs old

   82% on time · 0.8% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 336 + Southwest 2381 on Aviasales

9. #9 · 1 connection · 5h 50m · one ticket (Southwest)

   9:55 AM → 3:45 PM

   98%

   connections made

   81%

   arrive on time

   9:55 AM ECP → 11:25 AM BNA1h 30m

   Southwest 2297

   Boeing 737-700 · 15–23 yrs old

   87% on time · 0.2% cancel

   Connect in BNA · 3h 00m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

   2:25 PM BNA → 3:45 PM STL1h 20m

   Southwest 2381

   Boeing 737-700 · 17–20 yrs old

   82% on time · 0.8% cancel
   Why this ranks here

   Find this Southwest trip ↗Look for Southwest 2297 + Southwest 2381 on Aviasales

10. #10 · 1 connection · 6h 09m · one ticket (Delta)

    9:25 AM → 3:32 PM

    96%

    connections made

    81%

    arrive on time

    9:25 AM ECP → 11:35 AM ATL1h 10m

    Delta 3048

    Boeing 717 · 22–27 yrs old

    90% on time · 2.0% cancel

    Connect in ATL · 3h 19m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

    2:54 PM ATL → 3:32 PM STL1h 40m

    Delta 1485

    Airbus A321 or Boeing 737-900ER · 7–25 yrs old

    85% on time · 1.6% cancel
    Why this ranks here

    Find this Delta trip ↗Look for Delta 3048 + Delta 1485 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.