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

Route on-time record

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

Baltimore (Baltimore/Washington International Thurgood Marshall Airport) to Los Angeles (Los Angeles International Airport). 1,748 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.3% were cancelled. The most reliable flight number was United 2318 at 7:00 AM.

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

Find me the most reliable flights fromtoonreturning(optional)

BWI → LAX

Baltimore to Los Angeles: 1,748 nonstop flights a year

On time (12 months)

76%

Cancelled

1.3%

avg delay 15 min

Best time to leave

Before 9 AM

91% on time vs 46% after 9 PM

Most reliable airline

United

85% chance on time

Check BWI to LAX fares

Lowest nonstop fare seen in the next two months: $149 (Southwest 2529 on 2026-11-04). 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 · United 2318

    7:00 AM → 9:29 AM5h 29m nonstop

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

    92%

    chance on time

    On time (history)
    100%
    Cancelled
    9.1%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (10 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 46%).
    • 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 · 10 flights

    Find United 2318 fares Opens this date on Aviasales

  2. #2 · United 278

    6:23 AM → 9:14 AM5h 51m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    91%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 91% of the time (76 flights, Jun 2025 to May 2026).
    • Never cancelled in 76 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 46%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Moderate track record · 76 flights

    Find United 278 fares Opens this date on Aviasales

  3. #3 · Southwest 1172

    8:15 AM → 11:05 AM5h 50m nonstop

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

    85%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 89% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 46%).
    • 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 · 55 flights

    Find Southwest 1172 fares Opens this date on Aviasales

  4. #4 · United 1546

    6:25 PM → 9:29 PM6h 04m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1717; its record covers all of them.

    82%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    26 min
    • Arrived on time 82% of the time (73 flights, Jun 2025 to May 2026).
    • Never cancelled in 73 scheduled flights.
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.

    Moderate track record · 73 flights

    Find United 1546 fares Opens this date on Aviasales

  5. #5 · Southwest 2760

    2:50 PM → 5:30 PM5h 40m nonstop

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

    65%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    18 min
    • Arrived on time 75% of the time (8 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.
    • Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.

    Limited track record · 8 flights

    Find Southwest 2760 fares Opens this date on Aviasales

  6. #6 · Southwest 1841

    7:45 PM → 10:35 PM5h 50m nonstop

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

    59%

    chance on time

    On time (history)
    53%
    Cancelled
    0.0%
    Avg arrival delay
    30 min
    • Arrived on time 53% of the time (15 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.
    • 71% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 15 flights

    Find Southwest 1841 fares Opens this date on Aviasales

  7. #7 · Southwest 1691

    3:05 PM → 5:45 PM5h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Southwest 2891; its record covers all of them.

    55%

    chance on time

    On time (history)
    51%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 51% of the time (63 flights, Jun 2025 to May 2026).
    • Never cancelled in 63 scheduled flights.
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.

    Moderate track record · 63 flights

    Find Southwest 1691 fares Opens this date on Aviasales

  8. #8 · Southwest 3581

    7:55 PM → 10:40 PM5h 45m nonstop

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

    51%

    chance on time

    On time (history)
    35%
    Cancelled
    0.0%
    Avg arrival delay
    38 min
    • Arrived on time 35% 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.
    • 51% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 23 flights

    Find Southwest 3581 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines85%

    571 flights · 87% on time as flown · 1.2% cancel

  • Southwest Airlines69%

    1,041 flights · 69% on time as flown · 1.3% cancel

On time by departure time

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

  • Before 9 AM91%

    767 flights · avg delay 5 min

  • Noon to 3 PM65%

    106 flights · avg delay 21 min

  • 3 to 6 PM63%

    218 flights · avg delay 21 min

  • 6 to 9 PM68%

    556 flights · avg delay 23 min

  • After 9 PM46%

    80 flights · avg delay 32 min

Best day: Tuesday (79%). Worst: Friday (72%).

Smarter routing

Nearby airports that run more on time

  • IAD → LAX 80% chance on time

    Washington Dulles International Airport to Los Angeles International Airport · 2,427 flights a year · 45 mi from your airports · yours: 75%

    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
81
F
79
M
84
A
74
M
77
J
70
J
64
A
72
S
83
O
80
N
84
D
79

What delays this route

  • Late-arriving aircraft40%
  • Airline (crew, maintenance, boarding)35%
  • Air traffic control and airport volume20%
  • Severe weather5%

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

Finding the most reliable connections from BWI to LAX…

BWI to LAX questions

What time of day is best to fly BWI to LAX?
Before 9 AM: 91% of flights arrived on time, against 46% for departures after 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 BWI to LAX?
United, with a season-adjusted 85% chance of operating and arriving on time over 571 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 BWI to LAX?
July (64% on time); the best was March (84%), 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 BWI

Most on-time flights from BWI on every route →

Live status: FAA delays and ground stops