ON TIMEBOARD
MSY New Orleans / SLC Salt Lake City

MSY → SLC on time

New Orleans (New Orleans, LA) to Salt Lake City (Salt Lake City, UT). Every scheduled flight, September 2025 to August 2026.

On time
90%
arrived < 15 min late
Cancelled
0.2%
455 flights
Typical arrival
−11 min
median vs schedule
When late
+91 min
average delay
Flights / day
1
1 airline

90% of flights from New Orleans to Salt Lake City arrived on time over the past 12 months. That is better than the typical U.S. route. 5% 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 → SLC: when a flight was late, it was under 45 minutes late 52% of the time. About 1 in 25 flights landed an hour or more late, and 1 in 114 three hours or more; 0.2% were cancelled outright.

Share of all 455 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Delta Air Lines45590%0.2%−11 min4.0%+91 minDelta Air Lines

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%1 p.m. departures: 89% on time (285 flights)891p2 p.m. departures: too few flights (68 flights)2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights (11 flights)4p5 p.m. departures: too few flights5p6 p.m. departures: too few flights6p7 p.m. departures: too few flights (91 flights)7p
MSY → SLC, 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 month

Each calendar month pooled over 2023–2026. Best: April (91%). Worst: May (79%).

40%70%100%Jan: 90% on time (113 flights)90JanFeb: 87% on time (106 flights)87FebMar: 86% on time (136 flights)86MarApr: 91% on time (132 flights)91AprMay: 79% on time (135 flights)79MayJun: too few flights (94 flights)JunJul: too few flights (93 flights)JulAug: too few flights (93 flights)AugSep: too few flights (90 flights)SepOct: too few flights (93 flights)OctNov: too few flights (86 flights)NovDec: 90% on time (111 flights)90Dec

By day of week

DayFlightsOn timeCancelled
Monday68——
Tuesday67——
Wednesday66——
Thursday63——
Friday66——
Saturday57——
Sunday68——

Why flights were late

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

Airline (crew, maintenance, ops) 50%Late inbound plane 34%Air traffic & airport (NAS) 11%Severe weather 5%

Cancellations: airline 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
DL 7361:45 p.m.36090%0.0%−11 minDelta Air Lines

Questions

How often are flights from MSY to SLC on time?

90% of 455 scheduled flights from New Orleans, LA to Salt Lake City, UT arrived within 15 minutes of schedule between September 2025 and August 2026. 0.2% were cancelled.

What month has the most delays from MSY to SLC?

May (79% on time). The best month is April (91%), over 2023–2026.

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.