Route · SLC → BOS · 2020–2025 BTS data
Salt Lake City to Boston
The SLC–BOS corridor (Salt Lake City, UT → Boston, MA) runs ahead of the national average, served by 3 carriers across roughly 2,105 miles.
Data updated 2026-06-13
- 80.5%
- On-time
- +1.5 pts
- vs US avg
- 80 min
- Delay when late
- 6,671
- Flights
Cancelled
0.5%
Best Month
Oct 2024 92%
Worst Month
Aug 2024 65%
Distance
2,105 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 107 | 20 | 2 | 0 | DL,B6 |
| Nov 2025 | 97 | 11 | 0 | 0 | B6,DL |
| Oct 2025 | 92 | 23 | 0 | 0 | DL |
| Sep 2025 | 92 | 20 | 0 | 0 | DL,B6 |
| Aug 2025 | 116 | 17 | 1 | 0 | B6,DL |
| Jul 2025 | 123 | 28 | 2 | 0 | B6,DL |
| Jun 2025 | 109 | 22 | 1 | 0 | B6,DL |
| May 2025 | 93 | 25 | 0 | 0 | DL |
| Apr 2025 | 90 | 11 | 0 | 0 | DL |
| Mar 2025 | 151 | 28 | 1 | 0 | B6,DL |
| Feb 2025 | 96 | 16 | 0 | 1 | B6,DL |
| Jan 2025 | 81 | 9 | 1 | 0 | B6,DL |
| Dec 2024 | 88 | 27 | 0 | 0 | B6,DL |
| Nov 2024 | 87 | 12 | 0 | 0 | B6,DL |
| Oct 2024 | 112 | 9 | 0 | 0 | DL,B6 |
| Sep 2024 | 113 | 23 | 0 | 0 | B6,DL |
| Aug 2024 | 124 | 43 | 0 | 1 | B6,DL |
| Jul 2024 | 122 | 33 | 4 | 1 | B6,DL |
| Jun 2024 | 120 | 32 | 1 | 1 | B6,DL |
| May 2024 | 124 | 23 | 0 | 0 | B6,DL |
| Apr 2024 | 120 | 24 | 0 | 0 | B6,DL |
| Mar 2024 | 117 | 25 | 0 | 0 | B6,DL |
| Feb 2024 | 85 | 15 | 0 | 0 | B6,DL |
| Jan 2024 | 87 | 26 | 0 | 0 | B6,DL |
Cancellation Rate
0.5%
13 of 2,546 flights
Diversion Rate
0.2%
4 of 2,546 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Origin airport →BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
Destination airport →Compare the two airports
See SLC and BOS side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–BOS.
Routes with a similar on-time rate
What the Data Says About SLC to BOS
6,671 tracked flights put the SLC to BOS pairing (Salt Lake City to Boston) at a 80.5% on-time rate, squarely in line with the wider network. Delays that do occur run 80.2 minutes on average. Across the 2,105-mile route and its 3 carriers, the trailing 24 months show 0.5% cancelled and 0.2% diverted (2,546 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 92% on-time, while Aug 2024 came in at just 65% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SLC to BOS? ▼
What is the cancellation rate for SLC to BOS? ▼
How far is the flight from SLC to BOS? ▼
When is the best time to fly from SLC to BOS? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.