Route profile
JAX→DTW
Flight reliability, delays and best times to fly from Jacksonville to Detroit, 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 75% of comparable major US routes (4,598 compared)
Calculated from 1,762 flights. How this is calculated · What counts as on time
JAX → DTW arrives on time 84.1% of the time; the return trip, DTW → JAX, arrives on time 82.9% of the time.
JAX → DTW spends 21.9 minutes on the ground on an 813-mile trip: 13.0 minutes from pushback to wheels-up at JAX and 9.0 minutes from touchdown to gate at DTW.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where JAX to DTW differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
JAX to DTW is at its best against routes of similar length for flights scheduled at 6 PM: 76.9% arrive on time, 9 points ahead of the 67.9% those routes manage at that hour. Against all other routes the gap is 8.3 points.
JAX to DTW holds up on Fridays better than routes of similar length do: 85.1% on time to their 76.1%, a 9 points lead. Against all other routes the gap is 8.9 points.
May is kinder to JAX to DTW than to routes of similar length: 86.2% on time against 74.1%, 12.1 points better. Against all other routes the gap is 11 points.
Delta Air Lines does better on JAX to DTW than on its routes of similar length: 84.2% on time here, 81.2% there, 3 points apart. Against all other routes the gap is 2.7 points.
JAX to DTW against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 6 PM departures | 76.9% | routes of similar length | 67.9% | +9.0 pts | 519 here, 147,223 there |
| Weekday: Friday | 85.1% | routes of similar length | 76.1% | +9.0 pts | 276 here, 330,390 there |
| Month: May | 86.2% | routes of similar length | 74.1% | +12.1 pts | 159 here, 187,010 there |
| Airline: Delta Air Lines | 84.2% | routes of similar length | 81.2% | +3.0 pts | 1,728 here, 297,459 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
30 min late
against a median of 9 min early
Percentiles over 1,762 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at DTW after arriving from JAX.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 29% | High risk |
| 45 min | 15% | High risk |
| 60 min | 9.9% | Some risk |
| 90 min | 5.0% | Low risk |
| 120 min | 2.9% | 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 1,734 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 30 minutes late (90th-percentile gate arrival delay), over 1,762 operations.
Any other layover length: connection checker.
Best time to fly
JAX → DTW flights departing 9 AM–12 PM arrived on time 88.7% of the time, against 76.8% for 6–9 PM departures, a gap of 11.9 percentage points.
By departure window
By departure hour
- 12 AM to 10 AM: too few flights to score
- 11 AM: 88.7% on time from 804 flights
- 12 PM: 82.5% on time from 274 flights
- 1 PM to 5 PM: too few flights to score
- 6 PM: 76.9% on time from 523 flights
- 7 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why JAX → DTW runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
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 JAX → DTW. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on JAX → DTW, at 59.3%: flights here mostly leave late because the plane came in late, and the day shows it: 9 AM–12 PM departures arrived on time 88.7% of the time and 6–9 PM departures 76.8%.
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 | 1,756 | 84.2% | 1.54% | -9 min | 4.9% |
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 9.0 percentage points.
By month
- Jan to Feb: no data
- Mar: 83.2%
- Apr: 85.4%
- May: 86.2%
- Jun: 77.4%
- Jul: 73.4%
- Aug: 86.4%
- Sep: 92.9%
- Oct: 87.4%
- Nov: 91.4%
- Dec: 86.2%
July is historically the weakest month and September the strongest, a spread of 19.5 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 86.9% against 84.0% in the 12 months before — improving by 2.9 percentage points.
Data and methodology
Calculated by FlyerIntel from 1,762 JAX → DTW 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