Route profile
FLL→SLC
Flight reliability, delays and best times to fly from Fort Lauderdale to Salt Lake City, 2,084 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 68% of comparable major US routes (4,598 compared)
Calculated from 1,537 flights. How this is calculated · What counts as on time
FLL → SLC arrives on time 80.1% of the time; the return trip, SLC → FLL, arrives on time 79.9% of the time.
FLL → SLC spends 27.0 minutes on the ground on a 2,084-mile trip: 18.3 minutes from pushback to wheels-up at FLL and 8.7 minutes from touchdown to gate at SLC.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Reliability on this route has fallen unusually sharply over the past year, a bigger swing than 96% of 5,368 comparable routes.
74.9% on time over the most recent 12 months (2025-08 to 2026-07), against 87.5% in the 12 months before (2024-08 to 2025-07), a change of 12.6 points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 5,368 in the comparison.
What sets this route apart
Where FLL to SLC differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
FLL to SLC is at its best against routes of similar length for flights scheduled at 7 AM: 89.2% arrive on time, 2.7 points ahead of the 86.5% those routes manage at that hour.
July is kinder to FLL to SLC than to routes of similar length: 78.8% on time against 70.5%, 8.3 points better. Against all other routes the gap is 9.1 points.
Delta Air Lines does better on FLL to SLC than on its routes of similar length: 84.2% on time here, 81.8% there, 2.4 points apart. Against all other routes the gap is 2.7 points.
FLL to SLC against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 7 AM departures | 89.2% | routes of similar length | 86.5% | +2.7 pts | 674 here, 90,363 there |
| Month: July | 78.8% | routes of similar length | 70.5% | +8.3 pts | 184 here, 112,952 there |
| Airline: Delta Air Lines | 84.2% | routes of similar length | 81.8% | +2.4 pts | 1,123 here, 251,944 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 2,084 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
38 min late
against a median of 9 min early
Percentiles over 1,537 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at SLC after arriving from FLL.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 35% | Likely to miss |
| 45 min | 20% | High risk |
| 60 min | 12% | Some risk |
| 90 min | 6.5% | Some risk |
| 120 min | 4.1% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.46% of the time and diverts 0.07% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,529 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 38 minutes late (90th-percentile gate arrival delay), over 1,537 operations.
Any other layover length: connection checker.
Best time to fly
FLL → SLC flights departing 5–9 AM arrived on time 88.9% of the time, against 67.6% for 6–9 PM departures, a gap of 21.3 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 87.9% on time from 149 flights
- 7 AM: 89.2% on time from 679 flights
- 8 AM to 4 PM: too few flights to score
- 5 PM: 74.8% on time from 230 flights
- 6 PM: 69.6% on time from 149 flights
- 7 PM: 66.7% on time from 311 flights
- 8 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why FLL → SLC runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for FLL → SLC. Only delays of 15 minutes or more are attributed. What the five causes mean
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Delta Air Lines | 1,128 | 84.2% | 0.44% | -9 min | 5.4% |
| JetBlue | 337 | 65.4% | 0.30% | -1 min | 11.3% |
Delta Air Lines flew 77.0% of the 1,465 flights listed.
Delta Air Lines arrived on time 18.8 percentage points more often than JetBlue on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| DL745 Delta Air Lines | 7:00 AM | 1,034 | 84.9% |
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 7.6 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 74.9% against 87.5% in the 12 months before — declining by 12.6 percentage points.
Data and methodology
Calculated by FlyerIntel from 1,537 FLL → SLC flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed