ON TIMEBOARD
SLC Salt Lake City / MSY New Orleans

SLC → MSY on time

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

On time
86%
arrived < 15 min late
Cancelled
0.4%
455 flights
Typical arrival
−9 min
median vs schedule
When late
+49 min
average delay
Flights / day
1
1 airline

86% of flights from Salt Lake City to New Orleans arrived on time over the past 12 months. That is better than the typical U.S. route. 4% 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 SLC → MSY: when a flight was late, it was under 45 minutes late 69% of the time. About 1 in 28 flights landed an hour or more late, and 1 in 455 three hours or more; 0.4% 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 Lines45586%0.4%−9 min3.5%+49 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 SLC). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%9 a.m. departures: 87% on time (351 flights)879a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (13 flights)11anoon departures: too few flights12p1 p.m. departures: too few flights (27 flights)1p2 p.m. departures: too few flights (64 flights)2p
SLC → MSY, 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: December (94%). Worst: January (81%).

40%70%100%Jan: 81% on time (113 flights)81JanFeb: 88% on time (106 flights)88FebMar: 87% on time (136 flights)87MarApr: 86% on time (132 flights)86AprMay: 81% on time (135 flights)81MayJun: 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: 94% on time (111 flights)94Dec

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) 47%Late inbound plane 27%Air traffic & airport (NAS) 20%Severe weather 6%

Cancellations: airline 2

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 21009:25 a.m.36087%0.3%−9 minDelta Air Lines

Questions

How often are flights from SLC to MSY on time?

86% of 455 scheduled flights from Salt Lake City, UT to New Orleans, LA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.4% were cancelled.

What month has the most delays from SLC to MSY?

January (81% on time). The best month is December (94%), 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.