Find the flight least likely to be delayed

1. Best overall#1 · Nonstop · 1h 50m

   10:10 AM → 12:00 PM

   88%

   arrive on time

   10:10 AM BHM → 12:00 PM MDW1h 50m

   Southwest 512

   Boeing 737 MAX 8 or 737-700 · 1–20 yrs old

   89% on time · 1.1% cancel
   Why this ranks here

   Find Southwest 512 fares ↗Opens this date on Aviasales

2. #2 · Nonstop · 1h 55m

   2:55 PM → 4:50 PM

   84%

   arrive on time

   2:55 PM BHM → 4:50 PM MDW1h 55m

   Southwest 18 · also flew as 693

   Boeing 737-800 or 737 MAX 8 · 1–13 yrs old

   85% on time · 1.2% cancel
   Why this ranks here

   Find Southwest 18 fares ↗Opens this date on Aviasales

3. #3 · Nonstop · 1h 50m

   9:45 AM → 11:35 AM

   83%

   arrive on time

   9:45 AM BHM → 11:35 AM MDW1h 50m

   Southwest 743

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

   85% on time · 1.9% cancel
   Why this ranks here

   Find Southwest 743 fares ↗Opens this date on Aviasales

4. #4 · 1 connection · 4h 41m · one ticket (Delta)

   5:15 AM → 9:56 AM

   93%

   connections made

   79%

   arrive on time

   5:15 AM BHM → 7:15 AM ATL1h 00m

   Delta 1979 · also flew as 2162

   Boeing 717 · 20–27 yrs old

   94% on time · 1.7% cancel

   Connect in ATL · 1h 44m · 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 1979 + Delta 1063 on Aviasales

5. #5 · 1 connection · 5h 43m · one ticket (Delta)

   6:20 AM → 12:02 PM

   93%

   connections made

   81%

   arrive on time

   6:20 AM BHM → 8:29 AM ATL1h 10m

   Delta 1618

   Boeing 717 · 13–26 yrs old

   88% on time · 2.1% cancel

   Connect in ATL · 2h 36m · 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 1618 + Delta 2417 on Aviasales

6. #6 · 1 connection · 5h 22m · one ticket (Delta)

   10:47 AM → 4:12 PM

   93%

   connections made

   79%

   arrive on time

   10:47 AM BHM → 12:53 PM ATL1h 04m

   Delta 3164

   Boeing 717 · 16–27 yrs old

   93% on time · 2.9% cancel

   Connect in ATL · 2h 22m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

   3:15 PM ATL → 4:12 PM MDW1h 56m

   Delta 1728

   Airbus A320 · 24–34 yrs old

   85% on time · 2.0% cancel
   Why this ranks here

   Find this Delta trip ↗Look for Delta 3164 + Delta 1728 on Aviasales

7. #7 · 1 connection · 4h 17m · one ticket (Delta)

   7:45 AM → 12:02 PM

   87%

   connections made

   76%

   arrive on time

   7:45 AM BHM → 9:53 AM ATL1h 08m

   Delta 1369

   Boeing 717 · 22–27 yrs old

   89% on time · 2.2% cancel

   Connect in ATL · 1h 12m · 91% 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 1369 + Delta 2417 on Aviasales

8. #8 · 1 connection · 6h 30m · one ticket (Southwest)

   5:40 AM → 12:10 PM

   98%

   connections made

   82%

   arrive on time

   5:40 AM BHM → 6:45 AM BNA1h 05m

   Southwest 484 · also flew as 4640

   Boeing 737-700 or 737 MAX 8 · 1–22 yrs old

   92% on time · 1.1% cancel

   Connect in BNA · 3h 50m · 100% 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 484 + Southwest 4415 on Aviasales

9. #9 · 1 connection · 6h 47m · one ticket (Delta)

   5:15 AM → 12:02 PM

   95%

   connections made

   83%

   arrive on time

   5:15 AM BHM → 7:15 AM ATL1h 00m

   Delta 1979 · also flew as 2162

   Boeing 717 · 20–27 yrs old

   94% on time · 1.7% cancel

   Connect in ATL · 3h 50m · 100% 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 1979 + Delta 2417 on Aviasales

10. #10 · 1 connection · 6h 15m · one ticket (Southwest)

    5:40 AM → 11:55 AM

    97%

    connections made

    81%

    arrive on time

    5:40 AM BHM → 6:45 AM BNA1h 05m

    Southwest 484 · also flew as 4640

    Boeing 737-700 or 737 MAX 8 · 1–22 yrs old

    92% on time · 1.1% cancel

    Connect in BNA · 3h 25m · 100% chance to make it · same ticket: the airline rebooks you if you miss it

    10:10 AM BNA → 11:55 AM MDW1h 45m

    Southwest 1100

    Boeing 737 MAX 8 · 1–13 yrs old

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

    Find this Southwest trip ↗Look for Southwest 484 + Southwest 1100 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.