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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.

DTW → BWI

Detroit to Baltimore: 2,273 nonstop flights a year

On time (12 months)

81%

Cancelled

1.2%

avg delay 14 min

Best time to leave

Before 9 AM

90% on time vs 68% 6 to 9 PM

Most reliable airline

Spirit

81% chance on time

Check DTW to BWI fares

Lowest nonstop fare seen in the next two months: $110 (Frontier 1516 on 2026-10-22). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · Southwest 4845

    5:35 AM → 7:00 AM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3027; its record covers all of them.

    95%

    chance on time

    On time (history)
    97%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 97% of the time (88 flights, Jun 2025 to May 2026).
    • Never cancelled in 88 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 68%).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).

    Moderate track record · 88 flights

    Find Southwest 4845 fares Opens this date on Aviasales

  2. #2 · Delta 2341

    7:00 AM → 8:33 AM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    91%

    chance on time

    On time (history)
    100%
    Cancelled
    5.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (19 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 68%).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).
    • Short track record (19 flights), so its score leans on the airline's record at this hour.

    Limited track record · 19 flights

    Find Delta 2341 fares Opens this date on Aviasales

  3. #3 · Delta 1392

    10:10 AM → 11:39 AM1h 29m nonstop

    Local times, typical schedule. Last flown 2026-05-06.

    89%

    chance on time

    On time (history)
    96%
    Cancelled
    4.2%
    Avg arrival delay
    5 min
    • Arrived on time 96% of the time (23 flights, Jun 2025 to May 2026).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Delta 1392 fares Opens this date on Aviasales

  4. #4 · Delta 1546

    8:55 AM → 10:30 AM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    84%

    chance on time

    On time (history)
    86%
    Cancelled
    0.3%
    Avg arrival delay
    7 min
    • Arrived on time 86% of the time (292 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 68%).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).

    Strong track record · 292 flights

    Find Delta 1546 fares Opens this date on Aviasales

  5. #5 · Delta 2480

    3:20 PM → 4:49 PM1h 29m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    77%

    chance on time

    On time (history)
    78%
    Cancelled
    1.1%
    Avg arrival delay
    21 min
    • Arrived on time 78% of the time (352 flights, Jun 2025 to May 2026).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 352 flights

    Find Delta 2480 fares Opens this date on Aviasales

  6. #6 · Delta 2715

    9:30 PM → 11:01 PM1h 31m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    76%

    chance on time

    On time (history)
    77%
    Cancelled
    2.2%
    Avg arrival delay
    18 min
    • Arrived on time 77% of the time (355 flights, Jun 2025 to May 2026).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).

    Strong track record · 355 flights

    Find Delta 2715 fares Opens this date on Aviasales

  7. #7 · Frontier 1516

    12:55 PM → 2:31 PM1h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    75%

    chance on time

    On time (history)
    76%
    Cancelled
    2.4%
    Avg arrival delay
    18 min
    • Arrived on time 76% of the time (122 flights, Jun 2025 to May 2026).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).
    • Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 122 flights

    Find Frontier 1516 fares Opens this date on Aviasales

  8. #8 · Southwest 609

    1:20 PM → 2:45 PM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    68%

    chance on time

    On time (history)
    52%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 52% of the time (23 flights, Jun 2025 to May 2026).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 51% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 23 flights

    Find Southwest 609 fares Opens this date on Aviasales

  9. #9 · Southwest 1346

    3:35 PM → 5:05 PM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 3791; its record covers all of them.

    67%

    chance on time

    On time (history)
    61%
    Cancelled
    2.0%
    Avg arrival delay
    24 min
    • Arrived on time 61% of the time (49 flights, Jun 2025 to May 2026).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 75% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 49 flights

    Find Southwest 1346 fares Opens this date on Aviasales

  10. #10 · Southwest 572

    4:05 PM → 5:40 PM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    65%

    chance on time

    On time (history)
    44%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 44% of the time (16 flights, Jun 2025 to May 2026).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 65% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 16 flights

    Find Southwest 572 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Spirit Airlines81%

    127 flights · 84% on time as flown · 0.7% cancel

  • Delta Air Lines80%

    1,205 flights · 81% on time as flown · 1.2% cancel

  • Southwest Airlines80%

    793 flights · 81% on time as flown · 1.2% cancel

  • Frontier Airlines76%

    134 flights · 76% on time as flown · 1.7% cancel

On time by departure time

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

  • Before 9 AM90%

    688 flights · avg delay 6 min

  • 9 AM to noon87%

    292 flights · avg delay 9 min

  • Noon to 3 PM80%

    219 flights · avg delay 16 min

  • 3 to 6 PM71%

    582 flights · avg delay 20 min

  • 6 to 9 PM68%

    79 flights · avg delay 25 min

  • After 9 PM79%

    413 flights · avg delay 18 min

Best day: Tuesday (87%). Worst: Friday (79%).

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