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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.

BWI → IND

Baltimore to Indianapolis: 1,219 nonstop flights a year

On time (12 months)

78%

Cancelled

1.3%

avg delay 13 min

Best time to leave

9 AM to noon

91% on time vs 64% after 9 PM

Most reliable airline

Southwest

77% chance on time

Check BWI to IND fares

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 660

    10:35 AM → 12:25 PM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    86%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 88% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Leaves in this route's most on-time window (9 AM to noon: 91% on time; After 9 PM: 64%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Limited track record · 33 flights

    Find Southwest 660 fares Opens this date on Aviasales

  2. #2 · Southwest 2617

    11:10 AM → 12:55 PM1h 45m nonstop

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

    84%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 87% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Leaves in this route's most on-time window (9 AM to noon: 91% on time; After 9 PM: 64%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Limited track record · 54 flights

    Find Southwest 2617 fares Opens this date on Aviasales

  3. #3 · Southwest 2087

    3:30 PM → 5:15 PM1h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-27.

    84%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 94% of the time (16 flights, Jun 2025 to May 2026).
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Southwest 2087 fares Opens this date on Aviasales

  4. #4 · Southwest 1150

    1:40 PM → 3:25 PM1h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-29.

    80%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 83% of the time (23 flights, Jun 2025 to May 2026).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 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 Southwest 1150 fares Opens this date on Aviasales

  5. #5 · Southwest 1529

    3:05 PM → 4:55 PM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    78%

    chance on time

    On time (history)
    74%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 74% of the time (23 flights, Jun 2025 to May 2026).
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 1529 fares Opens this date on Aviasales

  6. #6 · Southwest 1151

    5:55 PM → 7:45 PM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-05-29.

    72%

    chance on time

    On time (history)
    74%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 74% of the time (23 flights, Jun 2025 to May 2026).
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 1151 fares Opens this date on Aviasales

  7. #7 · Southwest 1155

    9:10 PM → 11:00 PM1h 50m nonstop

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

    67%

    chance on time

    On time (history)
    63%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 63% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Leaves in this route's least on-time window (After 9 PM: 64% on time; 9 AM to noon: 91%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Limited track record · 54 flights

    Find Southwest 1155 fares Opens this date on Aviasales

  8. #8 · Southwest 4116

    10:30 PM → 12:20 AM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 1147; its record covers all of them.

    59%

    chance on time

    On time (history)
    49%
    Cancelled
    4.9%
    Avg arrival delay
    27 min
    • Arrived on time 49% of the time (39 flights, Jun 2025 to May 2026).
    • Cancelled 4.9% of the time (2 of 41).
    • Leaves in this route's least on-time window (After 9 PM: 64% on time; 9 AM to noon: 91%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Limited track record · 39 flights

    Find Southwest 4116 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines77%

    1,219 flights · 78% on time as flown · 1.3% cancel

On time by departure time

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

  • Before 9 AM88%

    157 flights · avg delay 4 min

  • 9 AM to noon91%

    257 flights · avg delay 8 min

  • Noon to 3 PM82%

    164 flights · avg delay 11 min

  • 3 to 6 PM73%

    267 flights · avg delay 15 min

  • 6 to 9 PM72%

    148 flights · avg delay 19 min

  • After 9 PM64%

    226 flights · avg delay 21 min

Best day: Tuesday (80%). Worst: Sunday (70%).

Smarter routing

Nearby airports that run more on time

  • IAD → IND 82% chance on time

    Washington Dulles International Airport to Indianapolis International Airport · 1,022 flights a year · 45 mi from your airports · yours: 77%

    Rank flightsFares

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