ON TIMEBOARD

JAC → SLC on time

Jackson Hole (Jackson, WY) to Salt Lake City (Salt Lake City, UT). Every scheduled flight, September 2025 to August 2026.

On time
86%
arrived < 15 min late
Cancelled
1.0%
1,217 flights
Typical arrival
−12 min
median vs schedule
When late
+85 min
average delay
Flights / day
3
1 airline

86% of flights from Jackson to Salt Lake City arrived on time over the past 12 months. That is better than the typical U.S. route. The 11 a.m. departures ran on time 94% of the time; the 7 a.m. ones 81%. 6% 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 JAC → SLC: when a flight was late, it was under 45 minutes late 48% of the time. About 1 in 19 flights landed an hour or more late, and 1 in 87 three hours or more; 1.0% were cancelled outright.

Share of all 1,217 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Delta Air Lines1,21786%1.0%−12 min5.3%+85 minDelta Air Lines 61%, SkyWest 39%

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 JAC). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: 81% on time (364 flights)817a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: 94% on time (141 flights)9411anoon departures: too few flights (95 flights)12p1 p.m. departures: 88% on time (260 flights)881p2 p.m. departures: too few flights2p3 p.m. departures: too few flights (1 flights)3p4 p.m. departures: too few flights4p5 p.m. departures: 88% on time (204 flights)885p6 p.m. departures: 86% on time (152 flights)866p
JAC → 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

Last flight of the day

On JAC → SLC, each airline's last flight of the day was cancelled 1.4% of the time, against 0.8% for its earlier flights (1.7× as often). It arrived 3+ hours late 0.3% of the time (earlier flights: 1.5%). 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
Delta Air Lines6:05 p.m.1.4%0.3%0.8%first flight 7:40 a.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.

If you need to be in SLC tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: April (92%). Worst: February (72%).

40%70%100%Jan: 79% on time (264 flights)79JanFeb: 72% on time (246 flights)72FebMar: 82% on time (279 flights)82MarApr: 92% on time (270 flights)92AprMay: 89% on time (316 flights)89MayJun: 91% on time (326 flights)91JunJul: 84% on time (340 flights)84JulAug: 85% on time (311 flights)85AugSep: 88% on time (275 flights)88SepOct: 86% on time (284 flights)86OctNov: 89% on time (249 flights)89NovDec: 84% on time (262 flights)84Dec

By day of week

DayFlightsOn timeCancelled
Monday18285%1.1%
Tuesday16890%0.0%
Wednesday16685%3.0%
Thursday17684%1.1%
Friday17989%0.6%
Saturday16684%0.6%
Sunday18083%0.6%

Why flights were late

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

Airline (crew, maintenance, ops) 49%Late inbound plane 27%Severe weather 14%Air traffic & airport (NAS) 10%

Cancellations: weather 8 · airline 3 · air traffic/airport 1

Month by month

60%80%100%Sep 2023Jan 2024Jan 2025Jan 2026May 2025: 95% on time, 0.0% cancelledJun 2025: 91% on time, 0.0% cancelledJul 2025: 86% on time, 0.0% cancelledAug 2025: 93% on time, 0.0% cancelledSep 2025: 89% on time, 0.0% cancelledOct 2025: 81% on time, 0.0% cancelledMay 2026: 92% on time, 0.0% cancelledJun 2026: 92% on time, 0.0% cancelledJul 2026: 85% on time, 0.8% cancelledAug 2026: 85% on time, 0.0% cancelled
Share of flights on time, by month (hover a point for cancellations)
JAC → SLC, monthly on-time and cancellation rate.

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 22821:15 p.m.25587%1.2%−17 minDelta Air Lines

Worst days in the past year

DateFlightsOn timeCancelled
Feb 12, 202630%1
Mar 28, 202630%0
Feb 18, 202630%1
Feb 11, 202630%2
Dec 19, 202530%1

Questions

How often are flights from JAC to SLC on time?

86% of 1,217 scheduled flights from Jackson, WY to Salt Lake City, UT arrived within 15 minutes of schedule between September 2025 and August 2026. 1.0% were cancelled.

What is the best time of day to fly JAC to SLC?

Flights scheduled to leave at 11 a.m. were the most reliable (94% on time). The 7 a.m. departures were the least (81%).

What month has the most delays from JAC to SLC?

February (72% on time). The best month is April (92%), over 2023–2026.

Is the last flight of the day from JAC to SLC more likely to be cancelled?

Yes. Each airline's last JAC–SLC flight of the day was cancelled 1.4% of the time over the past year, against 0.8% 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.