Skip to content

All Products

Aviation Intelligence

Alerts & Airspace

Free Pilot Tools & Widgets

RC Aviation

Games & Learning

Weather Research & More

Pilot Resources

My Airports

Your shortcuts, saved on this device. Search to add an airport.

No airports saved yet. Add the fields you visit most.

Ask ATIS

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.

MSY → BWI

New Orleans to Baltimore: 1,201 nonstop flights a year

On time (12 months)

80%

Cancelled

1.5%

avg delay 13 min

Best time to leave

Before 9 AM

95% on time vs 47% 6 to 9 PM

Most reliable airline

Southwest

79% chance on time

Check MSY to BWI fares

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

Best trips

10 nonstop, 34 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 · 2h 35m

    6:00 AM → 9:35 AM

    95%

    arrive on time

    6:00 AM MSY → 9:35 AM BWI2h 35m

    Southwest 3481

    Boeing 737 MAX 8 or 737-800 · 1–12 yrs old
    96% on time · 1.2% cancel
    Find Southwest 3481 fares Opens this date on Aviasales

  2. #2 · Nonstop · 2h 25m

    6:20 AM → 9:45 AM

    87%

    arrive on time

    6:20 AM MSY → 9:45 AM BWI2h 25m

    Southwest 646

    Boeing 737 MAX 8 · 1–20 yrs old
    89% on time · 1.3% cancel
    Find Southwest 646 fares Opens this date on Aviasales

  3. #3 · Nonstop · 2h 30m

    1:50 PM → 5:20 PM

    80%

    arrive on time

    1:50 PM MSY → 5:20 PM BWI2h 30m

    Southwest 1409

    Boeing 737-700 · 9–23 yrs old
    81% on time · 1.5% cancel
    Find Southwest 1409 fares Opens this date on Aviasales

  4. #4 · Nonstop · 2h 33m

    1:30 PM → 5:00 PM

    79%

    arrive on time

    1:30 PM MSY → 5:00 PM BWI2h 33m

    Southwest 1960

    Boeing 737-700 or 737 MAX 8 · 1–24 yrs old
    80% on time · 1.5% cancel
    Find Southwest 1960 fares Opens this date on Aviasales

  5. #5 · Nonstop · 2h 35m

    4:45 PM → 8:20 PM

    76%

    arrive on time

    4:45 PM MSY → 8:20 PM BWI2h 35m

    Southwest 2475

    Boeing 737-700 · 4–22 yrs old
    77% on time · 1.3% cancel
    Find Southwest 2475 fares Opens this date on Aviasales

  6. #6 · 1 connection · 5h 30m · one ticket (Southwest)

    7:45 AM → 2:15 PM

    96%

    connections made

    85%

    arrive on time

    7:45 AM MSY → 9:35 AM STL1h 50m

    Southwest 290 · also flew as 3650, 3871

    Boeing 737-700 or 737-800 · 1–22 yrs old
    91% on time · 0.3% cancel
    Connect in STL · 1h 40m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

    11:15 AM STL → 2:15 PM BWI2h 00m

    Southwest 2098

    Boeing 737-700 · 18–22 yrs old
    88% on time · 1.0% cancel
    Find this Southwest trip Look for Southwest 290 + Southwest 2098 on Aviasales

  7. #7 · Nonstop · 2h 25m

    12:15 PM → 3:40 PM

    71%

    arrive on time

    12:15 PM MSY → 3:40 PM BWI2h 25m

    Southwest 3849

    Boeing 737-700 or 737-800 · 5–21 yrs old
    73% on time · 1.9% cancel
    Find Southwest 3849 fares Opens this date on Aviasales

  8. #8 · 1 connection · 6h 10m · one ticket (Southwest)

    7:05 AM → 2:15 PM

    95%

    connections made

    84%

    arrive on time

    7:05 AM MSY → 8:55 AM STL1h 50m

    Southwest 2427

    Boeing 737 MAX 8 or 737-800 · 1–20 yrs old
    90% on time · 1.5% cancel
    Connect in STL · 2h 20m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    11:15 AM STL → 2:15 PM BWI2h 00m

    Southwest 2098

    Boeing 737-700 · 18–22 yrs old
    88% on time · 1.0% cancel
    Find this Southwest trip Look for Southwest 2427 + Southwest 2098 on Aviasales

  9. #9 · Nonstop · 2h 38m

    5:27 PM → 9:05 PM

    71%

    arrive on time

    5:27 PM MSY → 9:05 PM BWI2h 38m

    Frontier 4582

    Airbus A320neo or A321neo · 1–8 yrs old
    72% on time · 1.3% cancel
    Find Frontier 4582 fares Opens this date on Aviasales

  10. #10 · Nonstop · 2h 25m

    5:00 PM → 8:25 PM

    70%

    arrive on time

    5:00 PM MSY → 8:25 PM BWI2h 25m

    Southwest 1837

    Boeing 737 MAX 8 or 737-800 · 2–21 yrs old
    71% on time · 1.9% cancel
    Find Southwest 1837 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 Airlines79%

    1,033 flights · 80% on time as flown · 1.6% cancel

  • Spirit Airlines77%

    150 flights · 77% on time as flown · 1.1% cancel

On time by departure time

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

  • Before 9 AM95%

    388 flights · avg delay 4 min

  • 9 AM to noon89%

    231 flights · avg delay 7 min

  • Noon to 3 PM71%

    147 flights · avg delay 12 min

  • 3 to 6 PM67%

    357 flights · avg delay 24 min

  • 6 to 9 PM47%

    63 flights · avg delay 28 min

Best day: Tuesday (85%). Worst: Monday (77%).

Smarter routing

Nearby airports that run more on time

  • MSY → IAD 90% chance on time

    Louis Armstrong New Orleans International Airport to Washington Dulles International Airport · 649 flights a year · 45 mi from your airports · yours: 79%

    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