Route profile
DTW→JAX
Flight reliability, delays and best times to fly from Detroit to Jacksonville, 813 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 76% of comparable major US routes (4,598 compared)
Calculated from 1,760 flights. How this is calculated
DTW → JAX arrives on time 82.9% of the time; the return trip, JAX → DTW, arrives on time 84.1% of the time.
DTW → JAX spends 23.6 minutes on the ground on an 813-mile trip: 17.3 minutes from pushback to wheels-up at DTW and 6.3 minutes from touchdown to gate at JAX.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
This route holds up about the same all year, a steadier seasonal pattern than 92% of 3,357 comparable routes.
87.8% on time in its best month (September) against 77.1% in its worst (July).
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 3,357 in the comparison.
What sets this route apart
Where DTW to JAX differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
DTW to JAX is at its best against routes of similar length for flights scheduled at 3 PM: 76.8% arrive on time, 5.2 points ahead of the 71.6% those routes manage at that hour.
DTW to JAX holds up on Tuesdays better than routes of similar length do: 90.8% on time to their 81.2%, a 9.6 points lead. Against all other routes the gap is 9.2 points.
May is kinder to DTW to JAX than to routes of similar length: 84.9% on time against 74.1%, 10.8 points better. Against all other routes the gap is 9.7 points.
DTW to JAX against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 3 PM departures | 76.8% | routes of similar length | 71.6% | +5.2 pts | 379 here, 128,803 there |
| Weekday: Tuesday | 90.8% | routes of similar length | 81.2% | +9.6 pts | 207 here, 303,627 there |
| Month: May | 84.9% | routes of similar length | 74.1% | +10.8 pts | 159 here, 187,010 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 813 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
32 min late
against a median of 8 min early
Percentiles over 1,760 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at JAX after arriving from DTW.
| 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 | 4.7% | Low risk |
| 120 min | 2.8% | 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 1.53% of the time and diverts 0.06% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,732 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 32 minutes late (90th-percentile gate arrival delay), over 1,760 operations.
Any other layover length: connection checker.
Best time to fly
DTW → JAX flights departing 5–9 AM arrived on time 86.6% of the time, against 76.6% for 3–6 PM departures, a gap of 10.0 percentage points.
By departure window
By departure hour
- 12 AM to 7 AM: too few flights to score
- 8 AM: 86.7% on time from 1,073 flights
- 9 AM to 1 PM: too few flights to score
- 2 PM: 78.4% on time from 221 flights
- 3 PM: 76.8% on time from 382 flights
- 4 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why DTW → JAX 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
Share of the delay minutes US DOT attributed to each cause for DTW → JAX. 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 | 1,755 | 82.9% | 1.54% | -8 min | 4.7% |
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| DL2333 Delta Air Lines | 8:25 AM | 1,058 | 87.3% |
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 14.1 percentage points.
By month
- Jan to Feb: no data
- Mar: 80.4%
- Apr: 84.8%
- May: 84.9%
- Jun: 81.1%
- Jul: 77.1%
- Aug: 85.1%
- Sep: 87.8%
- Oct: 86.2%
- Nov: 85.5%
- Dec: 82.9%
July is historically the weakest month and September the strongest, a spread of 10.7 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 84.5% against 84.0% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 1,760 DTW → JAX 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