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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.

BDL → BWI

Hartford to Baltimore: 1,764 nonstop flights a year

On time (12 months)

83%

Cancelled

1.9%

avg delay 11 min

Best time to leave

Before 9 AM

93% on time vs 73% 3 to 6 PM

Most reliable airline

Southwest

81% chance on time

Check BDL to BWI fares

Lowest nonstop fare seen in the next two months: $133 (Southwest 445 on 2026-11-09). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Best trips

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

  1. Best overall#1 · Nonstop · 1h 30m

    5:50 AM → 7:20 AM

    94%

    arrive on time

    5:50 AM BDL → 7:20 AM BWI1h 30m

    Southwest 464 · also flew as 2473

    Boeing 737 MAX 8 or 737-800 · 1–21 yrs old
    95% on time · 1.2% cancel
    Find Southwest 464 fares Opens this date on Aviasales

  2. #2 · Nonstop · 1h 25m

    8:55 AM → 10:20 AM

    92%

    arrive on time

    8:55 AM BDL → 10:20 AM BWI1h 25m

    Southwest 674

    Boeing 737-700 · 5–23 yrs old
    94% on time · 1.6% cancel
    Find Southwest 674 fares Opens this date on Aviasales

  3. #3 · Nonstop · 1h 25m

    11:20 AM → 12:45 PM

    89%

    arrive on time

    11:20 AM BDL → 12:45 PM BWI1h 25m

    Southwest 3229

    Boeing 737-700 · 17–23 yrs old
    90% on time · 1.7% cancel
    Find Southwest 3229 fares Opens this date on Aviasales

  4. #4 · Nonstop · 1h 25m

    8:45 AM → 10:10 AM

    89%

    arrive on time

    8:45 AM BDL → 10:10 AM BWI1h 25m

    Southwest 470

    Boeing 737-700 · 8–22 yrs old
    90% on time · 1.6% cancel
    Find Southwest 470 fares Opens this date on Aviasales

  5. #5 · Nonstop · 1h 25m

    11:45 AM → 1:10 PM

    87%

    arrive on time

    11:45 AM BDL → 1:10 PM BWI1h 25m

    Southwest 202

    Boeing 737 MAX 8 or 737-800 · 1–18 yrs old
    89% on time · 1.8% cancel
    Find Southwest 202 fares Opens this date on Aviasales

  6. #6 · Nonstop · 1h 25m

    12:35 PM → 2:00 PM

    86%

    arrive on time

    12:35 PM BDL → 2:00 PM BWI1h 25m

    Southwest 469

    Boeing 737-700 or 737 MAX 8 · 3–22 yrs old
    88% on time · 1.9% cancel
    Find Southwest 469 fares Opens this date on Aviasales

  7. #7 · Nonstop · 1h 25m

    12:20 PM → 1:45 PM

    83%

    arrive on time

    12:20 PM BDL → 1:45 PM BWI1h 25m

    Southwest 675

    Boeing 737-700 · 16–23 yrs old
    84% on time · 1.7% cancel
    Find Southwest 675 fares Opens this date on Aviasales

  8. #8 · Nonstop · 1h 25m

    9:20 AM → 10:45 AM

    82%

    arrive on time

    9:20 AM BDL → 10:45 AM BWI1h 25m

    Southwest 373

    Boeing 737-700 · 8–21 yrs old
    84% on time · 1.7% cancel
    Find Southwest 373 fares Opens this date on Aviasales

  9. #9 · Nonstop · 1h 30m

    3:00 PM → 4:30 PM

    82%

    arrive on time

    3:00 PM BDL → 4:30 PM BWI1h 30m

    Southwest 3176

    Boeing 737-700 · 15–23 yrs old
    83% on time · 1.8% cancel
    Find Southwest 3176 fares Opens this date on Aviasales

  10. #10 · Nonstop · 1h 25m

    5:35 PM → 7:00 PM

    80%

    arrive on time

    5:35 PM BDL → 7:00 PM BWI1h 25m

    Southwest 2464

    Boeing 737-700 or 737 MAX 8 · 3–22 yrs old
    82% on time · 2.7% cancel
    Find Southwest 2464 fares Opens this date 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 Airlines81%

    1,764 flights · 83% on time as flown · 1.9% cancel

On time by departure time

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

  • Before 9 AM93%

    663 flights · avg delay 5 min

  • 9 AM to noon92%

    182 flights · avg delay 8 min

  • Noon to 3 PM74%

    446 flights · avg delay 15 min

  • 3 to 6 PM73%

    453 flights · avg delay 18 min

Best day: Wednesday (88%). Worst: Friday (80%).

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