Route profile
SLC→IND
Flight reliability, delays and best times to fly from Salt Lake City to Indianapolis, 1,355 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
March 2024 – July 2026
Better than 73% of comparable major US routes (4,598 compared)
Calculated from 873 flights. How this is calculated
SLC → IND arrives on time 82.5% of the time; the return trip, IND → SLC, arrives on time 91.2% of the time, an 8.7-point gap between the two directions of the same city pair.
SLC → IND spends 22.7 minutes on the ground on a 1,355-mile trip: 15.2 minutes from pushback to wheels-up at SLC and 7.5 minutes from touchdown to gate at IND.
Source: US DOT Bureau of Transportation Statistics · Data covering March 2024 – July 2026
What stands out
Which day you fly matters unusually much here, a wider weekday spread than 98% of 4,467 comparable routes.
92.7% on time on a typical Wednesday, against 75.2% on a Monday.
Source: FlyerIntel analysis of US DOT BTS data · March 2024 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,467 in the comparison.
What sets this route apart
Where SLC to IND differs most from similar routes by hour, weekday, month and airline, March 2024 – July 2026.
SLC to IND is at its best against routes of similar length for flights scheduled at 5 PM: 82.7% arrive on time, 14 points ahead of the 68.7% those routes manage at that hour. Against all other routes the gap is 12.9 points.
SLC to IND holds up on Wednesdays better than routes of similar length do: 92.7% on time to their 80.2%, a 12.5 points lead. Against all other routes the gap is 11.9 points.
SLC to IND against comparable routes
March 2024 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 5 PM departures | 82.7% | routes of similar length | 68.7% | +14.0 pts | 730 here, 108,956 there |
| Weekday: Wednesday | 92.7% | routes of similar length | 80.2% | +12.5 pts | 124 here, 236,651 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 1,355 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
March 2024 – July 2026
34 min late
against a median of 7 min early
Percentiles over 873 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at IND after arriving from SLC.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 31% | Likely to miss |
| 45 min | 17% | High risk |
| 60 min | 11% | Some risk |
| 90 min | 6.0% | Some risk |
| 120 min | 3.6% | 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 0.92% of the time and diverts 0.00% of the time, which a late arrival never shows up in.
Chance of missing is the share of 865 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 34 minutes late (90th-percentile gate arrival delay), over 873 operations.
Any other layover length: connection checker.
Why SLC → IND runs late
March 2024 – 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
Share of the delay minutes US DOT attributed to each cause for SLC → IND. Only delays of 15 minutes or more are attributed.
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 | 873 | 82.5% | 0.92% | -7 min | 6.0% |
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| DL2228 Delta Air Lines | 5:50 PM | 784 | 82.3% |
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Monday the least, a gap of 17.5 percentage points.
Reliability over time
March 2024 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 83.3% against 82.8% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 873 SLC → IND flight records from the US DOT Bureau of Transportation Statistics, covering March 2024 – 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