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Route on-time record

JAX to BWI: most on-time flights and the best time to fly

Jacksonville (Jacksonville International Airport) to Baltimore (Baltimore/Washington International Thurgood Marshall Airport). 1,409 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 1.4% were cancelled. The most reliable flight number was Southwest 1666 at 7:45 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

JAX → BWI

Jacksonville to Baltimore: 1,409 nonstop flights a year

On time (12 months)

80%

Cancelled

1.4%

avg delay 13 min

Best time to leave

Before 9 AM

95% on time vs 59% 6 to 9 PM

Most reliable airline

Southwest

79% chance on time

Check JAX to BWI 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 1666

    7:45 AM → 9:40 AM1h 55m nonstop

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

    94%

    chance on time

    On time (history)
    100%
    Cancelled
    3.1%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 3.1% of the time (1 of 32).
    • Leaves in this route's most on-time window (Before 9 AM: 95% on time; 6 to 9 PM: 59%).
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find Southwest 1666 fares Opens this date on Aviasales

  2. #2 · Southwest 2496

    6:55 AM → 8:50 AM1h 55m nonstop

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

    90%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 94% 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 (Before 9 AM: 95% on time; 6 to 9 PM: 59%).
    • Short track record (54 flights), so its score leans on the airline's record at this hour.

    Limited track record · 54 flights

    Find Southwest 2496 fares Opens this date on Aviasales

  3. #3 · Southwest 4726

    10:55 AM → 12:50 PM1h 55m nonstop

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

    88%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 91% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Short track record (55 flights), so its score leans on the airline's record at this hour.

    Limited track record · 55 flights

    Find Southwest 4726 fares Opens this date on Aviasales

  4. #4 · Southwest 3467

    2:30 PM → 4:25 PM1h 55m nonstop

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

    79%

    chance on time

    On time (history)
    79%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 79% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • 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 · 33 flights

    Find Southwest 3467 fares Opens this date on Aviasales

  5. #5 · Southwest 1516

    10:25 AM → 12:20 PM1h 55m nonstop

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

    79%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    37 min
    • Arrived on time 67% of the time (15 flights, Jun 2025 to May 2026).
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 1516 fares Opens this date on Aviasales

  6. #6 · Southwest 3564

    5:00 PM → 7:00 PM1h 55m nonstop

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

    75%

    chance on time

    On time (history)
    69%
    Cancelled
    1.8%
    Avg arrival delay
    17 min
    • Arrived on time 69% of the time (54 flights, Jun 2025 to May 2026).
    • Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 53% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (54 flights), so its score leans on the airline's record at this hour.

    Limited track record · 54 flights

    Find Southwest 3564 fares Opens this date on Aviasales

  7. #7 · Southwest 1091

    4:40 PM → 6:35 PM1h 55m nonstop

    Local times, typical schedule. Last flown 2026-04-01.

    65%

    chance on time

    On time (history)
    50%
    Cancelled
    0.0%
    Avg arrival delay
    30 min
    • Arrived on time 50% of the time (8 flights, Jun 2025 to May 2026).
    • 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.
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 1091 fares Opens this date on Aviasales

  8. #8 · Southwest 2285

    7:35 PM → 9:30 PM1h 55m nonstop

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

    65%

    chance on time

    On time (history)
    65%
    Cancelled
    6.1%
    Avg arrival delay
    16 min
    • Arrived on time 65% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 6.1% of the time (2 of 33).
    • Leaves in this route's least on-time window (6 to 9 PM: 59% on time; Before 9 AM: 95%).
    • 52% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 31 flights

    Find Southwest 2285 fares Opens this date on Aviasales

  9. #9 · Southwest 3538

    6:00 PM → 8:00 PM2h 00m nonstop

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

    58%

    chance on time

    On time (history)
    44%
    Cancelled
    0.0%
    Avg arrival delay
    28 min
    • Arrived on time 44% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 59% on time; Before 9 AM: 95%).
    • 53% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 55 flights

    Find Southwest 3538 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines79%

    1,409 flights · 80% on time as flown · 1.4% cancel

On time by departure time

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

  • Before 9 AM95%

    365 flights · avg delay 3 min

  • 9 AM to noon89%

    329 flights · avg delay 7 min

  • Noon to 3 PM83%

    115 flights · avg delay 11 min

  • 3 to 6 PM71%

    335 flights · avg delay 20 min

  • 6 to 9 PM59%

    265 flights · avg delay 24 min

Best day: Thursday (87%). Worst: Sunday (76%).

Smarter routing

Nearby airports that run more on time

  • JAX → IAD 87% chance on time

    Jacksonville International Airport to Washington Dulles International Airport · 762 flights a year · 45 mi from your airports · yours: 79%

    Rank flightsFares

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
86
F
87
M
85
A
81
M
79
J
74
J
69
A
76
S
91
O
89
N
91
D
82

What delays this route

  • Late-arriving aircraft52%
  • Airline (crew, maintenance, boarding)23%
  • Air traffic control and airport volume22%
  • Severe weather4%

Share of delay minutes by the cause airlines report to the US DOT.

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

JAX to BWI questions

What time of day is best to fly JAX to BWI?
Before 9 AM: 95% of flights arrived on time, against 59% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from JAX to BWI?
Southwest, with a season-adjusted 79% chance of operating and arriving on time over 1,409 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on JAX to BWI?
July (69% on time); the best was November (91%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from JAX

Live status: FAA delays and ground stops