ON TIMEBOARD

MSY → SFO on time

New Orleans (New Orleans, LA) to San Francisco (San Francisco, CA). Every scheduled flight, September 2025 to August 2026.

On time
75%
arrived < 15 min late
Cancelled
0.4%
515 flights
Typical arrival
−8 min
median vs schedule
When late
+74 min
average delay
Flights / day
1
2 airlines

75% of flights from New Orleans to San Francisco arrived on time over the past 12 months. That is worse than the typical U.S. route. The 2 p.m. departures ran on time 86% of the time; the 9 a.m. ones 83%. 10% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for MSY → SFO: when a flight was late, it was under 45 minutes late 43% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 64 three hours or more; 0.4% were cancelled outright.

Share of all 515 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines51475%0.4%−8 min9.5%+73 minUnited Airlines
American Airlines1—————American Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at MSY). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: too few flights (34 flights)6a7 a.m. departures: too few flights (21 flights)7a8 a.m. departures: too few flights (30 flights)8a9 a.m. departures: 83% on time (126 flights)839a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: too few flights12p1 p.m. departures: too few flights (4 flights)1p2 p.m. departures: 86% on time (117 flights)862p3 p.m. departures: too few flights3p4 p.m. departures: too few flights (1 flights)4p5 p.m. departures: too few flights (55 flights)5p6 p.m. departures: too few flights (44 flights)6p7 p.m. departures: too few flights (80 flights)7p
MSY → SFO, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By airline and hour

DepartsUnited Airlines
9 a.m.83%
2 p.m.86%

Last flight of the day

On MSY → SFO, each airline's last flight of the day was cancelled 0.0% of the time, against 0.6% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 1.9% of the time (earlier flights: 0.6%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
United Airlines7:04 p.m.0.0%1.9%0.6%first flight 7:04 p.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

By month

Each calendar month pooled over 2023–2026. Best: October (90%). Worst: May (55%).

40%70%100%Jan: 85% on time (138 flights)85JanFeb: 70% on time (144 flights)70FebMar: 75% on time (146 flights)75MarApr: 67% on time (166 flights)67AprMay: 55% on time (124 flights)55MayJun: too few flights (90 flights)JunJul: too few flights (92 flights)JulAug: too few flights (84 flights)AugSep: 88% on time (101 flights)88SepOct: 90% on time (148 flights)90OctNov: 85% on time (146 flights)85NovDec: 79% on time (117 flights)79Dec

By day of week

DayFlightsOn timeCancelled
Monday82——
Tuesday60——
Wednesday72——
Thursday79——
Friday80——
Saturday61——
Sunday81——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Air traffic & airport (NAS) 57%Late inbound plane 32%Airline (crew, maintenance, ops) 9%Severe weather 2%

Cancellations: airline 1 · weather 1

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
UA 21947:04 p.m.12343%0.0%+21 minUnited Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Nov 30, 2025333%0
Nov 28, 20253100%0

Questions

How often are flights from MSY to SFO on time?

75% of 515 scheduled flights from New Orleans, LA to San Francisco, CA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.4% were cancelled.

What is the best time of day to fly MSY to SFO?

Flights scheduled to leave at 2 p.m. were the most reliable (86% on time). The 9 a.m. departures were the least (83%).

What month has the most delays from MSY to SFO?

May (55% on time). The best month is October (90%), over 2023–2026.

Is the last flight of the day from MSY to SFO more likely to be cancelled?

No, the opposite. Each airline's last MSY–SFO flight of the day was cancelled 0.0% of the time over the past year, against 0.6% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.