Route on-time record
PHL to LAS: most on-time flights and the best time to fly
Philadelphia (Philadelphia International Airport) to Las Vegas (Harry Reid International Airport). 1,495 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.9% were cancelled. The most reliable flight number was American 2018 at 9:20 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
PHL → LAS
Philadelphia to Las Vegas: 1,495 nonstop flights a year
On time (12 months)
76%
Cancelled
1.9%
avg delay 19 min
Best time to leave
9 AM to noon
86% on time vs 68% 6 to 9 PM
Most reliable airline
Frontier
74% chance on time
Lowest nonstop fare seen in the next two months: $181 (Frontier 1601 on 2026-10-20). 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 2018
9:20 AM → 11:37 AM5h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 3161; its record covers all of them.
87%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 92% of the time (52 flights, Jun 2025 to May 2026).
- Never cancelled in 52 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 86% on time; 6 to 9 PM: 68%).
- 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 · 52 flights
Find American 2018 fares Opens this date on Aviasales#2 · American 2482
10:49 AM → 1:19 PM5h 30m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.5%
- Avg arrival delay
- 8 min
- Arrived on time 84% of the time (195 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 86% on time; 6 to 9 PM: 68%).
- Departs outside PHL's trouble window (2 PM to 8 PM, when 72% of its 95 ground stops and delay programs started).
- Lands inside LAS's trouble window: 51% of its 107 ground stops and delay programs started between 10 AM and 4 PM.
Moderate track record · 195 flights
Find American 2482 fares Opens this date on Aviasales#3 · American 3250
10:10 PM → 12:29 AM5h 19m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 100% 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).
Limited track record · 11 flights
Find American 3250 fares Opens this date on Aviasales#4 · Frontier 1601
10:40 AM → 1:21 PM5h 41m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 74%
- Cancelled
- 3.6%
- Avg arrival delay
- 28 min
- Arrived on time 74% of the time (107 flights, Jun 2025 to May 2026).
- Cancelled 3.6% of the time (4 of 112).
- Leaves in this route's most on-time window (9 AM to noon: 86% on time; 6 to 9 PM: 68%).
- 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 · 107 flights
Find Frontier 1601 fares Opens this date on Aviasales#5 · American 3040
3:56 PM → 6:26 PM5h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
67%
chance on time
- On time (history)
- 67%
- Cancelled
- 0.5%
- Avg arrival delay
- 33 min
- Arrived on time 67% of the time (207 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.
Strong track record · 207 flights
Find American 3040 fares Opens this date on Aviasales#6 · American 661
7:37 PM → 10:18 PM5h 41m nonstop
Local times, typical schedule. Last flown 2026-05-20.
67%
chance on time
- On time (history)
- 70%
- Cancelled
- 0.0%
- Avg arrival delay
- 17 min
- Arrived on time 70% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 68% on time; 9 AM to noon: 86%).
- Departs inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 44 flights
Find American 661 fares Opens this date on Aviasales#7 · American 3005
6:00 PM → 8:29 PM5h 29m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2357; its record covers all of them.
66%
chance on time
- On time (history)
- 66%
- Cancelled
- 4.2%
- Avg arrival delay
- 23 min
- Arrived on time 66% of the time (180 flights, Jun 2025 to May 2026).
- Cancelled 4.2% of the time (8 of 190).
- Leaves in this route's least on-time window (6 to 9 PM: 68% on time; 9 AM to noon: 86%).
- Departs inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 180 flights
Find American 3005 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Frontier Airlines74%
112 flights · 74% on time as flown · 2.6% cancel
- American Airlines74%
1,271 flights · 75% on time as flown · 1.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM82%
281 flights · avg delay 15 min
- 9 AM to noon86%
319 flights · avg delay 7 min
- Noon to 3 PM75%
69 flights · avg delay 17 min
- 3 to 6 PM71%
352 flights · avg delay 27 min
- 6 to 9 PM68%
388 flights · avg delay 23 min
- After 9 PM70%
86 flights · avg delay 34 min
Best day: Saturday (77%). Worst: Sunday (71%).
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)39%
- Late-arriving aircraft31%
- Air traffic control and airport volume21%
- Severe weather8%
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 LAS questions
- What time of day is best to fly PHL to LAS?
- 9 AM to noon: 86% of flights arrived on time, against 68% for departures 6 to 9 PM.
- Which airline is most on time from PHL to LAS?
- Frontier, with a season-adjusted 74% chance of operating and arriving on time over 112 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 LAS?
- July (58% on time); the best was October (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 PHL
- LAS to PHL (return)
- PHL to ATL 78%
- PHL to MCO 72%
- PHL to BOS 75%
- PHL to ORD 72%
- PHL to CLT 80%
- PHL to DFW 77%
- PHL to FLL 72%
- PHL to MIA 77%
- PHL to DEN 76%
- PHL to DTW 80%
- PHL to BNA 75%
- PHL to TPA 73%
Most on-time flights from PHL on every route →
Live status: FAA delays and ground stops