Route on-time record

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

Philadelphia (Philadelphia International Airport) to Los Angeles (Los Angeles International Airport). 2,449 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 1.4% were cancelled. The most reliable flight number was American 1035 at 7:00 AM.

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

PHL → LAX

Philadelphia to Los Angeles: 2,449 nonstop flights a year

On time (12 months)

78%

Cancelled

1.4%

avg delay 16 min

Best time to leave

Before 9 AM

88% on time vs 63% after 9 PM

Most reliable airline

American

77% chance on time

Check PHL to LAX fares

Lowest nonstop fare seen in the next two months: $209 (American 696 on 2026-10-23). 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 · American 1035
7:00 AM → 9:53 AM5h 53m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1952; its record covers all of them.
89%
chance on time
On time (history)
96%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 96% of the time (53 flights, Jun 2025 to May 2026).
- Never cancelled in 53 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; After 9 PM: 63%).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
Limited track record · 53 flights
Find American 1035 fares Opens this date on Aviasales
#2 · American 824
9:28 AM → 12:33 PM5h 58m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
On time (history)
87%
Cancelled
0.9%
Avg arrival delay
9 min
- Arrived on time 87% of the time (348 flights, Jun 2025 to May 2026).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
Strong track record · 348 flights
Find American 824 fares Opens this date on Aviasales
#3 · American 2408
11:15 AM → 2:10 PM5h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
On time (history)
82%
Cancelled
0.5%
Avg arrival delay
15 min
- Arrived on time 82% of the time (363 flights, Jun 2025 to May 2026).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
Strong track record · 363 flights
Find American 2408 fares Opens this date on Aviasales
#4 · American 2481
7:15 AM → 10:22 AM6h 07m nonstop
Local times, typical schedule. Last flown 2026-04-06. Same departure also flew as American 827; its record covers all of them.
79%
chance on time
On time (history)
80%
Cancelled
3.4%
Avg arrival delay
22 min
- Arrived on time 80% of the time (112 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (4 of 117).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; After 9 PM: 63%).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
Moderate track record · 112 flights
Find American 2481 fares Opens this date on Aviasales
#5 · American 813
3:43 PM → 6:39 PM5h 56m nonstop
Local times, typical schedule. Last flown 2026-05-20.
78%
chance on time
On time (history)
82%
Cancelled
0.0%
Avg arrival delay
11 min
- Arrived on time 82% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Departs inside PHL's trouble window: 72% of its 95 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 · 44 flights
Find American 813 fares Opens this date on Aviasales
#6 · American 1775
2:15 PM → 5:11 PM5h 56m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 713; its record covers all of them.
77%
chance on time
On time (history)
78%
Cancelled
1.6%
Avg arrival delay
13 min
- Arrived on time 78% of the time (186 flights, Jun 2025 to May 2026).
- Departs inside PHL's trouble window: 72% of its 95 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 · 186 flights
Find American 1775 fares Opens this date on Aviasales
#7 · American 2031
1:22 PM → 4:18 PM5h 56m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
73%
Cancelled
0.0%
Avg arrival delay
34 min
- Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
- Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
- 77% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find American 2031 fares Opens this date on Aviasales
#8 · American 2923
7:40 PM → 10:46 PM6h 06m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 2923 fares Opens this date on Aviasales
#9 · American 1451
5:37 PM → 8:36 PM5h 59m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1528; its record covers all of them.
71%
chance on time
On time (history)
74%
Cancelled
0.0%
Avg arrival delay
11 min
- Arrived on time 74% of the time (65 flights, Jun 2025 to May 2026).
- Never cancelled in 65 scheduled flights.
- Departs inside PHL's trouble window: 72% of its 95 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 · 65 flights
Find American 1451 fares Opens this date on Aviasales
#10 · American 738
9:59 PM → 12:59 AM6h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
On time (history)
70%
Cancelled
0.0%
Avg arrival delay
30 min
- Arrived on time 70% of the time (10 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 63% on time; Before 9 AM: 88%).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
- 90% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 10 flights
Find American 738 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

American Airlines77%
2,318 flights · 78% on time as flown · 1.5% cancel
Frontier Airlines67%
106 flights · 61% on time as flown · 0.8% cancel

On time by departure time

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

Before 9 AM88%
635 flights · avg delay 9 min
9 AM to noon83%
448 flights · avg delay 14 min
Noon to 3 PM79%
341 flights · avg delay 15 min
3 to 6 PM73%
517 flights · avg delay 17 min
6 to 9 PM64%
393 flights · avg delay 25 min
After 9 PM63%
115 flights · avg delay 21 min

Best day: Tuesday (82%). Worst: Friday (77%).

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)37%
Late-arriving aircraft35%
Air traffic control and airport volume23%
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

PHL to LAX questions

What time of day is best to fly PHL to LAX?: Before 9 AM: 88% of flights arrived on time, against 63% 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 PHL to LAX?: American, with a season-adjusted 77% chance of operating and arriving on time over 2,318 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 PHL to LAX?: July (70% on time); the best was November (85%), 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 PHL

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