Route on-time record
LAX to BWI: most on-time flights and the best time to fly
Los Angeles (Los Angeles International Airport) to Baltimore (Baltimore/Washington International Thurgood Marshall Airport). 1,751 nonstop flights in Jun 2025 to May 2026, 84% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was United 1605 at 9:08 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
LAX → BWI
Los Angeles to Baltimore: 1,751 nonstop flights a year
On time (12 months)
84%
Cancelled
0.6%
avg delay 9 min
Best time to leave
Before 9 AM
91% on time vs 64% noon to 3 PM
Most reliable airline
United
90% chance on time
Lowest nonstop fare seen in the next two months: $416 (United 1605 on 2026-10-26). 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 · United 1605
9:08 PM → 5:15 AM5h 07m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 94% of the time (253 flights, Jun 2025 to May 2026).
- Never cancelled in 254 scheduled flights.
- Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 253 flights
Find United 1605 fares Opens this date on Aviasales#2 · United 1093
9:00 AM → 5:08 PM5h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 93% of the time (60 flights, Jun 2025 to May 2026).
- Never cancelled in 60 scheduled flights.
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 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.
Moderate track record · 60 flights
Find United 1093 fares Opens this date on Aviasales#3 · Southwest 345
6:05 AM → 2:05 PM5h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% 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: 91% on time; Noon to 3 PM: 64%).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
Limited track record · 54 flights
Find Southwest 345 fares Opens this date on Aviasales#4 · Southwest 2837
9:50 PM → 5:45 AM4h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 71%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 71% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
- 59% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 55 flights
Find Southwest 2837 fares Opens this date on Aviasales#5 · Southwest 4339
11:45 AM → 7:40 PM4h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 75% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 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.
Limited track record · 32 flights
Find Southwest 4339 fares Opens this date on Aviasales#6 · Southwest 1155
12:40 PM → 8:35 PM4h 55m nonstop
Local times, typical schedule. Last flown 2026-05-29.
61%
chance on time
- On time (history)
- 43%
- Cancelled
- 0.0%
- Avg arrival delay
- 27 min
- Arrived on time 43% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 64% on time; Before 9 AM: 91%).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
- 77% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 23 flights
Find Southwest 1155 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines90%
570 flights · 91% on time as flown · 0.4% cancel
- Southwest Airlines80%
1,042 flights · 81% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
418 flights · avg delay 4 min
- 9 AM to noon81%
404 flights · avg delay 9 min
- Noon to 3 PM64%
195 flights · avg delay 17 min
- 6 to 9 PM86%
71 flights · avg delay 8 min
- After 9 PM86%
650 flights · avg delay 8 min
Best day: Tuesday (85%). Worst: Friday (79%).
Smarter routing
Nearby airports that run more on time
LAX → IAD 85% chance on time
Los Angeles International Airport to Washington Dulles International Airport · 2,429 flights a year · 45 mi from your airports · yours: 83%
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.
What delays this route
- Airline (crew, maintenance, boarding)41%
- Late-arriving aircraft35%
- Air traffic control and airport volume24%
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
LAX to BWI questions
- What time of day is best to fly LAX to BWI?
- Before 9 AM: 91% of flights arrived on time, against 64% for departures noon to 3 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 LAX to BWI?
- United, with a season-adjusted 90% chance of operating and arriving on time over 570 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 LAX to BWI?
- June (76% on time); the best was April (87%), 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 LAX
- BWI to LAX (return)
- LAX to SFO 68%
- LAX to JFK 79%
- LAX to LAS 77%
- LAX to DEN 82%
- LAX to PHX 81%
- LAX to SEA 85%
- LAX to ORD 77%
- LAX to DFW 75%
- LAX to SMF 85%
- LAX to HNL 77%
- LAX to IAH 84%
- LAX to ATL 76%
Most on-time flights from LAX on every route →
Live status: FAA delays and ground stops