Route on-time record
MSY to PHX: most on-time flights and the best time to fly
New Orleans (Louis Armstrong New Orleans International Airport) to Phoenix (Phoenix Sky Harbor International Airport). 935 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was Southwest 4643 at 6:55 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MSY → PHX
New Orleans to Phoenix: 935 nonstop flights a year
On time (12 months)
76%
Cancelled
0.4%
avg delay 18 min
Best time to leave
Before 9 AM
91% on time vs 65% 6 to 9 PM
Most reliable airline
Southwest
76% chance on time
Lowest nonstop fare seen in the next two months: $185 (Southwest 3177 on 2026-11-11). 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 · Southwest 4643
6:55 AM → 8:25 AM3h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 94% 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; 6 to 9 PM: 65%).
Limited track record · 54 flights
Find Southwest 4643 fares Opens this date on Aviasales#2 · American 3169
7:14 AM → 9:00 AM3h 46m nonstop
Local times, typical schedule. Last flown 2026-05-20.
86%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 65%).
Limited track record · 44 flights
Find American 3169 fares Opens this date on Aviasales#3 · Southwest 3812
2:45 PM → 4:15 PM3h 30m nonstop
Local times, typical schedule. Last flown 2026-05-27.
73%
chance on time
- On time (history)
- 69%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 69% of the time (16 flights, Jun 2025 to May 2026).
- Lands inside PHX's trouble window: 45% of its 47 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 16 flights
Find Southwest 3812 fares Opens this date on Aviasales#4 · American 2191
6:12 PM → 7:35 PM3h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2405; its record covers all of them.
72%
chance on time
- On time (history)
- 74%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 74% of the time (47 flights, Jun 2025 to May 2026).
- Never cancelled in 47 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 91%).
- Lands inside PHX's trouble window: 45% of its 47 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 47 flights
Find American 2191 fares Opens this date on Aviasales#5 · Southwest 1745
7:35 PM → 9:05 PM3h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
55%
chance on time
- On time (history)
- 42%
- Cancelled
- 0.0%
- Avg arrival delay
- 23 min
- Arrived on time 42% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 91%).
- 55% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 31 flights
Find Southwest 1745 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines76%
549 flights · 77% on time as flown · 0.2% cancel
- American Airlines76%
382 flights · 76% on time as flown · 0.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
311 flights · avg delay 9 min
- Noon to 3 PM75%
225 flights · avg delay 18 min
- 3 to 6 PM66%
107 flights · avg delay 21 min
- 6 to 9 PM65%
281 flights · avg delay 26 min
Best day: Tuesday (80%). Worst: Sunday (72%).
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
- Late-arriving aircraft55%
- Airline (crew, maintenance, boarding)30%
- Air traffic control and airport volume9%
- 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
MSY to PHX questions
- What time of day is best to fly MSY to PHX?
- Before 9 AM: 91% of flights arrived on time, against 65% for departures 6 to 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 MSY to PHX?
- Southwest, with a season-adjusted 76% chance of operating and arriving on time over 549 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 MSY to PHX?
- July (60% on time); the best was August (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 MSY
- PHX to MSY (return)
- MSY to ATL 82%
- MSY to IAH 82%
- MSY to DFW 72%
- MSY to ORD 79%
- MSY to MCO 77%
- MSY to DAL 78%
- MSY to HOU 76%
- MSY to DEN 80%
- MSY to AUS 78%
- MSY to DCA 71%
- MSY to CLT 83%
- MSY to MIA 79%
Most on-time flights from MSY on every route →
Live status: FAA delays and ground stops