Route · PHL → SLC · 2020–2025 BTS data
Philadelphia to Salt Lake City
The PHL–SLC corridor (Philadelphia, PA → Salt Lake City, UT) runs ahead of the national average, served by 3 carriers across roughly 1,927 miles.
Data updated 2026-06-13
- 80.5%
- On-time
- +1.5 pts
- vs US avg
- 80 min
- Delay when late
- 2,970
- Flights
Cancelled
2.2%
Best Month
Nov 2024 85%
Worst Month
Dec 2025 54%
Distance
1,927 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 63 | 29 | 2 | 0 | DL,AA |
| Nov 2025 | 44 | 7 | 0 | 0 | DL |
| Oct 2025 | 48 | 6 | 0 | 0 | DL |
| Sep 2025 | 48 | 7 | 0 | 0 | DL,AA |
| Aug 2025 | 87 | 21 | 2 | 0 | AA,DL |
| Jul 2025 | 92 | 35 | 6 | 1 | AA,DL |
| Jun 2025 | 83 | 24 | 2 | 0 | AA,DL |
| May 2025 | 48 | 7 | 0 | 0 | DL |
| Apr 2025 | 46 | 12 | 1 | 0 | DL |
| Mar 2025 | 49 | 12 | 0 | 0 | DL |
| Feb 2025 | 42 | 9 | 1 | 0 | DL |
| Jan 2025 | 50 | 12 | 0 | 0 | AA,DL |
| Dec 2024 | 67 | 17 | 1 | 0 | AA,DL |
| Nov 2024 | 53 | 8 | 0 | 0 | DL,AA |
| Oct 2024 | 45 | 1 | 0 | 0 | DL |
| Sep 2024 | 48 | 2 | 0 | 0 | AA,DL |
| Aug 2024 | 87 | 34 | 4 | 0 | AA,DL |
| Jul 2024 | 86 | 33 | 9 | 0 | AA,DL |
| Jun 2024 | 80 | 22 | 3 | 0 | AA,DL |
| May 2024 | 48 | 4 | 0 | 1 | DL |
| Apr 2024 | 47 | 6 | 0 | 0 | DL |
| Mar 2024 | 49 | 3 | 0 | 1 | DL |
| Feb 2024 | 37 | 4 | 0 | 0 | DL |
| Jan 2024 | 46 | 6 | 0 | 0 | AA,DL |
Cancellation Rate
2.2%
31 of 1,393 flights
Diversion Rate
0.2%
3 of 1,393 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
Origin airport →SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Destination airport →Compare the two airports
See PHL and SLC side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PHL–SLC.
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What the Data Says About PHL to SLC
2,970 tracked flights put the PHL to SLC pairing (Philadelphia to Salt Lake City) at a 80.5% on-time rate, squarely in line with the wider network. Delays that do occur run 79.7 minutes on average. Across the 1,927-mile route and its 3 carriers, the trailing 24 months show 2.2% cancelled and 0.2% diverted (1,393 flights sampled).
The monthly split is wide on this route: Nov 2024 posted the strongest performance at 85% on-time, while Dec 2025 came in at just 54% - a 31-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.