Route profile
DTW→SNA
Flight reliability, delays and best times to fly from Detroit to Santa Ana, 1,960 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 52% of comparable major US routes (4,598 compared)
Calculated from 893 flights. How this is calculated · What counts as on time
DTW → SNA arrives on time 76.4% of the time; the return trip, SNA → DTW, arrives on time 71.6% of the time, a 4.8-point gap between the two directions of the same city pair.
DTW → SNA spends 32.2 minutes on the ground on a 1,960-mile trip: 21.9 minutes from pushback to wheels-up at DTW and 10.3 minutes from touchdown to gate at SNA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where DTW to SNA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
DTW to SNA struggles most at 8 AM: 76.4% of its flights scheduled then arrive on time, 7.4 points behind the 83.8% on routes of similar length at the same hour. Against all other routes the gap is 9.5 points.
Delta Air Lines’ flights on DTW to SNA arrive on time 76.2% of the time, 5.5 points below the 81.7% it manages on its routes of similar length. Against all other routes the gap is 5.3 points.
DTW to SNA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 8 AM departures | 76.4% | routes of similar length | 83.8% | −7.4 pts | 812 here, 81,721 there |
| Airline: Delta Air Lines | 76.2% | routes of similar length | 81.7% | −5.5 pts | 860 here, 304,602 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 1,960 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.
DTW to SNA in context
This route against DTW and SNA as a whole, against similar routes from DTW, and against its own first year, July 2023 – July 2026.
Leaving DTW, DTW to SNA is on time 76.4% of the time, 3.2 points worse than the airport’s other departures at DTW (79.6%, from 381,946 flights).
Arriving at SNA, DTW to SNA is on time 76.4% of the time, 5.9 points worse than the airport’s other arrivals at SNA (82.3%, from 134,859 flights).
Airport comparisons take this route’s flights out of the airport total. Length means within 15% of this route’s distance, with at least 3 other routes from the same origin. On-time gaps are stated at 2 points and 2 standard errors, cancellation gaps at 0.5 points and 2 standard errors, and every group needs 750 flights. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
38 min late
against a median of 5 min early
Percentiles over 893 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at SNA after arriving from DTW.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 41% | Likely to miss |
| 45 min | 23% | High risk |
| 60 min | 13% | Some risk |
| 90 min | 6.6% | Some risk |
| 120 min | 3.7% | 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 0.90% of the time and diverts 0.34% of the time, which a late arrival never shows up in.
Chance of missing is the share of 882 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 38 minutes late (90th-percentile gate arrival delay), over 893 operations.
Any other layover length: connection checker.
Why DTW → SNA runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DTW → SNA. Only delays of 15 minutes or more are attributed. What the five causes mean
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 | 871 | 76.2% | 0.92% | -4 min | 7.0% |
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Friday the least, a gap of 11.5 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 70.0% against 76.6% in the 12 months before — declining by 6.6 percentage points.
Data and methodology
Calculated by FlyerIntel from 893 DTW → SNA 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