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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.

DAL → VPS

Dallas to Valparaiso: 428 nonstop flights a year

On time (12 months)

78%

Cancelled

0.5%

avg delay 14 min

Best time to leave

9 AM to noon

84% on time vs 50% 3 to 6 PM

Most reliable airline

Southwest

78% chance on time

Check DAL to VPS fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Best trips

2 nonstop, 16 with 1 connection. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.

  1. Best overall#1 · Nonstop · 1h 50m

    10:00 AM → 11:50 AM

    84%

    arrive on time

    10:00 AM DAL → 11:50 AM VPS1h 50m

    Southwest 1718 · also flew as 4632

    Boeing 737-700 · 3–23 yrs old
    85% on time · 0.8% cancel
    Find Southwest 1718 fares Opens this date on Aviasales

  2. #2 · Nonstop · 1h 50m

    12:30 PM → 2:20 PM

    75%

    arrive on time

    12:30 PM DAL → 2:20 PM VPS1h 50m

    Southwest 2406

    Boeing 737-700 · 4–20 yrs old
    76% on time · 0.4% cancel
    Find Southwest 2406 fares Opens this date on Aviasales

  3. #3 · 1 connection · 4h 55m · one ticket (Delta)

    6:05 AM → 10:59 AM

    90%

    connections made

    82%

    arrive on time

    6:05 AM DAL → 9:11 AM ATL2h 07m

    Delta 516

    Boeing 717 · 22–27 yrs old
    88% on time · 3.1% cancel
    Connect in ATL · 1h 36m · 94% chance to make it · same ticket: the airline rebooks you if you miss it

    10:47 AM ATL → 10:59 AM VPS1h 12m

    Delta 1642

    Boeing 717 · 21–27 yrs old
    91% on time · 1.8% cancel
    Find this Delta trip Look for Delta 516 + Delta 1642 on Aviasales

  4. #4 · 1 connection · 5h 15m · one ticket (Delta)

    7:12 AM → 12:27 PM

    90%

    connections made

    77%

    arrive on time

    7:12 AM DAL → 10:20 AM ATL2h 08m

    Delta 833

    Boeing 717 · 20–26 yrs old
    85% on time · 2.3% cancel
    Connect in ATL · 1h 55m · 93% chance to make it · same ticket: the airline rebooks you if you miss it

    12:15 PM ATL → 12:27 PM VPS1h 12m

    Delta 3092

    Boeing 717 or 737-900ER · 13–26 yrs old
    85% on time · 0.9% cancel
    Find this Delta trip Look for Delta 833 + Delta 3092 on Aviasales

  5. #5 · 1 connection · 6h 23m · one ticket (Delta)

    6:05 AM → 12:27 PM

    94%

    connections made

    80%

    arrive on time

    6:05 AM DAL → 9:11 AM ATL2h 07m

    Delta 516

    Boeing 717 · 22–27 yrs old
    88% on time · 3.1% cancel
    Connect in ATL · 3h 04m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

    12:15 PM ATL → 12:27 PM VPS1h 12m

    Delta 3092

    Boeing 717 or 737-900ER · 13–26 yrs old
    85% on time · 0.9% cancel
    Find this Delta trip Look for Delta 516 + Delta 3092 on Aviasales

  6. #6 · 1 connection · 4h 59m · separate tickets

    6:00 AM → 10:59 AM

    89%

    connections made

    81%

    arrive on time

    6:00 AM DAL → 9:00 AM ATL2h 00m

    Southwest 1468

    Boeing 737 MAX 8 or 737-800 · 1–11 yrs old
    91% on time · 1.5% cancel
    Connect in ATL · 1h 47m · 91% chance to make it · separate tickets: collect and re-check bags, re-clear security; if you miss it the second airline does not have to rebook you

    10:47 AM ATL → 10:59 AM VPS1h 12m

    Delta 1642

    Boeing 717 · 21–27 yrs old
    91% on time · 1.8% cancel
    Flight 1: find Southwest 1468 (DAL–ATL) Flight 2: find Delta 1642 (ATL–VPS) Book each flight separately on Aviasales

  7. #7 · 1 connection · 5h 26m · one ticket (Delta)

    10:42 AM → 4:08 PM

    92%

    connections made

    74%

    arrive on time

    10:42 AM DAL → 1:44 PM ATL2h 02m

    Delta 441

    Boeing 717 · 22–26 yrs old
    84% on time · 2.9% cancel
    Connect in ATL · 2h 16m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    4:00 PM ATL → 4:08 PM VPS1h 08m

    Delta 2024

    Boeing 737-800 · 16–27 yrs old
    80% on time · 2.0% cancel
    Find this Delta trip Look for Delta 441 + Delta 2024 on Aviasales

  8. #8 · 1 connection · 6h 58m · one ticket (Delta)

    7:12 AM → 2:10 PM

    93%

    connections made

    78%

    arrive on time

    7:12 AM DAL → 10:20 AM ATL2h 08m

    Delta 833

    Boeing 717 · 20–26 yrs old
    85% on time · 2.3% cancel
    Connect in ATL · 3h 39m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    1:59 PM ATL → 2:10 PM VPS1h 11m

    Delta 3083

    Boeing 717 or 737-900ER · 13–26 yrs old
    84% on time · 2.3% cancel
    Find this Delta trip Look for Delta 833 + Delta 3083 on Aviasales

  9. #9 · 1 connection · 6h 27m · separate tickets

    6:00 AM → 12:27 PM

    96%

    connections made

    81%

    arrive on time

    6:00 AM DAL → 9:00 AM ATL2h 00m

    Southwest 1468

    Boeing 737 MAX 8 or 737-800 · 1–11 yrs old
    91% on time · 1.5% cancel
    Connect in ATL · 3h 15m · 98% chance to make it · separate tickets: collect and re-check bags, re-clear security; if you miss it the second airline does not have to rebook you

    12:15 PM ATL → 12:27 PM VPS1h 12m

    Delta 3092

    Boeing 717 or 737-900ER · 13–26 yrs old
    85% on time · 0.9% cancel
    Flight 1: find Southwest 1468 (DAL–ATL) Flight 2: find Delta 3092 (ATL–VPS) Book each flight separately on Aviasales

  10. #10 · 1 connection · 6h 12m · separate tickets

    6:15 AM → 12:27 PM

    95%

    connections made

    81%

    arrive on time

    6:15 AM DAL → 9:15 AM ATL2h 00m

    Southwest 247

    Boeing 737-700 · 15–23 yrs old
    86% on time · 1.5% cancel
    Connect in ATL · 3h 00m · 97% chance to make it · separate tickets: collect and re-check bags, re-clear security; if you miss it the second airline does not have to rebook you

    12:15 PM ATL → 12:27 PM VPS1h 12m

    Delta 3092

    Boeing 717 or 737-900ER · 13–26 yrs old
    85% on time · 0.9% cancel
    Flight 1: find Southwest 247 (DAL–ATL) Flight 2: find Delta 3092 (ATL–VPS) Book each flight separately 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.

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines78%

    428 flights · 78% on time as flown · 0.5% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon84%

    309 flights · avg delay 9 min

  • Noon to 3 PM79%

    39 flights · avg delay 16 min

  • 3 to 6 PM50%

    61 flights · avg delay 30 min

Best day: Tuesday (89%). Worst: Thursday (78%).

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